{"title":"Hayward Heaters","description":"","products":[{"product_id":"hayward-heatpro-110000-btu-heat-pump-square-platform","title":"Hayward 110,000 BTU Heat Pump, HeatPro  High Capacity Pool Heating | W3HP21105T |","description":"\u003cp data-start=\"0\" data-end=\"459\"\u003eThe Hayward W3HP21105T HeatPro 110,000 BTU Heat Pump with a square platform offers high-capacity pool heating and is designed with industry-first microchannel heat exchanger technology. This energy-efficient heat pump improves heating performance even in cooler weather, extends the swim season, and provides exceptional durability with corrosion-resistant components. Ideal for homeowners seeking affordable, long-lasting pool heating.\u003c\/p\u003e\n\u003cp data-start=\"461\" data-end=\"478\"\u003e\u003cstrong data-start=\"461\" data-end=\"478\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"480\" data-end=\"1818\" data-is-last-node=\"\"\u003e\n\u003cli data-start=\"480\" data-end=\"663\"\u003e\n\u003cp data-start=\"482\" data-end=\"663\"\u003e\u003cstrong data-start=\"482\" data-end=\"524\"\u003eIndustry-First Microchannel Technology\u003c\/strong\u003e: Delivers superior energy efficiency, versatility, and affordability over time, improving heating performance while reducing energy costs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"665\" data-end=\"855\"\u003e\n\u003cp data-start=\"667\" data-end=\"855\"\u003e\u003cstrong data-start=\"667\" data-end=\"703\"\u003eImproved Heating in Cool Weather\u003c\/strong\u003e: The patent-pending defrost algorithm ensures better heating capacity even at temperatures as low as 50ºF, allowing you to extend your swimming season.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"857\" data-end=\"1005\"\u003e\n\u003cp data-start=\"859\" data-end=\"1005\"\u003e\u003cstrong data-start=\"859\" data-end=\"885\"\u003eDurable Coil Structure\u003c\/strong\u003e: Built to withstand outdoor impacts and protect against fin damage during installation, ensuring long-term reliability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1007\" data-end=\"1159\"\u003e\n\u003cp data-start=\"1009\" data-end=\"1159\"\u003e\u003cstrong data-start=\"1009\" data-end=\"1047\"\u003eBest-in-Class Corrosion Resistance\u003c\/strong\u003e: Features TCP coating developed by Naval Air Command, offering outstanding durability in the harshest climates.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1161\" data-end=\"1302\"\u003e\n\u003cp data-start=\"1163\" data-end=\"1302\"\u003e\u003cstrong data-start=\"1163\" data-end=\"1182\"\u003eLonger Lifespan\u003c\/strong\u003e: Provides less performance degradation compared to traditional tube and fin heat pumps, ensuring a longer service life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1304\" data-end=\"1434\"\u003e\n\u003cp data-start=\"1306\" data-end=\"1434\"\u003e\u003cstrong data-start=\"1306\" data-end=\"1326\"\u003eWeight Reduction\u003c\/strong\u003e: Up to 50 lbs lighter than traditional tube and fin designs, making installation easier and more efficient.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1436\" data-end=\"1549\"\u003e\n\u003cp data-start=\"1438\" data-end=\"1549\"\u003e\u003cstrong data-start=\"1438\" data-end=\"1461\"\u003eLower Panel Loading\u003c\/strong\u003e: Compatible with 40 amp breakers for efficient power use in 110k and 120k BTU\/hr units.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1551\" data-end=\"1684\"\u003e\n\u003cp data-start=\"1553\" data-end=\"1684\"\u003e\u003cstrong data-start=\"1553\" data-end=\"1569\"\u003eEco-Friendly\u003c\/strong\u003e: Uses significantly less refrigerant, reducing environmental impact while maintaining optimal heating performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1686\" data-end=\"1818\" data-is-last-node=\"\"\u003e\n\u003cp data-start=\"1688\" data-end=\"1818\" data-is-last-node=\"\"\u003e\u003cstrong data-start=\"1688\" data-end=\"1707\"\u003eMade in the USA\u003c\/strong\u003e: Built and assembled in Nashville, TN, ensuring high-quality craftsmanship and supporting local manufacturing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":49018177323320,"sku":"W3HP21105T","price":5729.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/W3HP21105T.png?v=1777922024"},{"product_id":"hayward-heatpro-100000-btu-heat-pump","title":"Hayward | W3HP21104T | HeatPro 100,000 BTU Inground Pool Heat Pump – Round Platform | OEM","description":"\u003cp data-start=\"0\" data-end=\"501\"\u003eThe Hayward W3HP21104T HeatPro 100,000 BTU Heat Pump with a round platform offers efficient, long-lasting heating for your pool. Featuring a titanium heat exchanger, corrosion-resistant components, and a quiet operation design, this heat pump is perfect for homeowners seeking reliable, high-performance pool heating. Its compact round design makes it easy to retrofit and install in various pool setups, while its tamper-proof thermostat ensures consistent temperature control.\u003c\/p\u003e\n\u003cp data-start=\"503\" data-end=\"520\"\u003e\u003cstrong data-start=\"503\" data-end=\"520\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"522\" data-end=\"1997\" data-is-last-node=\"\"\u003e\n\u003cli data-start=\"522\" data-end=\"680\"\u003e\n\u003cp data-start=\"524\" data-end=\"680\"\u003e\u003cstrong data-start=\"524\" data-end=\"551\"\u003eTitanium Heat Exchanger\u003c\/strong\u003e: Provides excellent saltwater and chemical corrosion resistance, ensuring durability and reliability in harsh pool environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"682\" data-end=\"842\"\u003e\n\u003cp data-start=\"684\" data-end=\"842\"\u003e\u003cstrong data-start=\"684\" data-end=\"726\"\u003eExclusive 'Ultra Gold' Evaporator Coil\u003c\/strong\u003e: Specially designed for corrosion resistance, especially in coastal areas, ensuring the longevity of the heat pump.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"844\" data-end=\"1011\"\u003e\n\u003cp data-start=\"846\" data-end=\"1011\"\u003e\u003cstrong data-start=\"846\" data-end=\"865\"\u003eQuiet Operation\u003c\/strong\u003e: Built with a vinyl-coated fan guard and profiled fan blade to ensure higher airflow and minimal noise, creating a peaceful backyard environment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1013\" data-end=\"1173\"\u003e\n\u003cp data-start=\"1015\" data-end=\"1173\"\u003e\u003cstrong data-start=\"1015\" data-end=\"1045\"\u003eAHRI Certified Performance\u003c\/strong\u003e: Independent lab-certified performance guarantees the value of your purchase with reliable and consistent heating capabilities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1175\" data-end=\"1346\"\u003e\n\u003cp data-start=\"1177\" data-end=\"1346\"\u003e\u003cstrong data-start=\"1177\" data-end=\"1201\"\u003eCompact Round Design\u003c\/strong\u003e: Ideal for tight spaces, the round platform easily fits through gates and takes up less space on your equipment pad, making installation simple.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1348\" data-end=\"1530\"\u003e\n\u003cp data-start=\"1350\" data-end=\"1530\"\u003e\u003cstrong data-start=\"1350\" data-end=\"1376\"\u003eUser-Friendly Features\u003c\/strong\u003e: Includes a single electronic thermostat with a continuous pool temperature display and tamper-proof temperature settings for added security and control.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1532\" data-end=\"1734\"\u003e\n\u003cp data-start=\"1534\" data-end=\"1734\"\u003e\u003cstrong data-start=\"1534\" data-end=\"1558\"\u003eDurable Construction\u003c\/strong\u003e: Features a vinyl-coated steel screen to protect the evaporator coil, stainless steel hardware, and a UV-resistant, injection-molded shell that resists rust and deterioration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1736\" data-end=\"1883\"\u003e\n\u003cp data-start=\"1738\" data-end=\"1883\"\u003e\u003cstrong data-start=\"1738\" data-end=\"1759\"\u003eEasy Installation\u003c\/strong\u003e: Comes with 2\" union fittings for easy plumbing and an accessible electrical hookup for quick and hassle-free installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1885\" data-end=\"1997\" data-is-last-node=\"\"\u003e\n\u003cp data-start=\"1887\" data-end=\"1997\" data-is-last-node=\"\"\u003e\u003cstrong data-start=\"1887\" data-end=\"1904\"\u003eBuilt to Last\u003c\/strong\u003e: Designed with premium materials for durability, ensuring long-term, trouble-free operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":49018177388856,"sku":"W3HP21104T","price":5799.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/W3HP21104T.png?v=1777922024"},{"product_id":"hayward-universal-h-series-400k-btu-asme-natural-gas-heater-h400fdnasme","title":"Hayward 400,000 BTU Natural Gas Low NOx, Universal H-Series ASME Pool \u0026 Spa Heater. H400FDNASME","description":"\u003cdiv aria-hidden=\"false\" role=\"tabpanel\" data-role=\"content\" id=\"additional\" aria-labelledby=\"tab-label-additional\" class=\"data item content\"\u003e\n\u003cdiv class=\"additional-attributes-wrapper table-wrapper\"\u003e\n\u003cdiv class=\"product-specs\" id=\"product-specs\"\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003e\n\u003cp data-end=\"971\" data-start=\"375\"\u003eThe Hayward H400FDNASME Universal H-Series ASME Pool \u0026amp; Spa Heater is a high capacity, low-NOx natural gas heater engineered for commercial grade reliability and fast heat up performance. Rated at 400,000 BTU, this ASME certified heater is designed for large residential pools, commercial pools, and installations requiring code-compliant pressure vessel construction. Built with a premium cupro nickel heat exchanger, bronze header, and ASME pressure relief valve as standard equipment, the H400FDNASME delivers durable, efficient heating while meeting strict emissions and safety requirements.\u003c\/p\u003e\n\u003chr data-end=\"976\" data-start=\"973\"\u003e\n\u003ch2 data-end=\"999\" data-start=\"978\"\u003e\u003cstrong data-end=\"997\" data-start=\"981\"\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"1968\" data-start=\"1000\"\u003e• 400,000 BTU natural gas heater provides rapid heat up for large residential and commercial pool and spa applications\u003cbr data-end=\"1121\" data-start=\"1118\"\u003e• ASME certified pressure vessel meets commercial code requirements in many states and municipalities\u003cbr data-end=\"1225\" data-start=\"1222\"\u003e• Low NOx forced draft combustion system complies with stringent air quality regulations\u003cbr data-end=\"1316\" data-start=\"1313\"\u003e• Patented cupro nickel heat exchanger offers superior resistance to corrosion and aggressive water chemistry\u003cbr data-end=\"1428\" data-start=\"1425\"\u003e• Low lead bronze header with patented bypass design improves hydraulic efficiency and extends heater life\u003cbr data-end=\"1537\" data-start=\"1534\"\u003e• ASME pressure relief valve included as standard for enhanced system safety\u003cbr data-end=\"1616\" data-start=\"1613\"\u003e• Universal left or right side plumbing, gas, and electrical connections simplify installation and retrofits\u003cbr data-end=\"1728\" data-start=\"1725\"\u003e• Front single panel access allows fast service and maintenance without rear clearance\u003cbr data-end=\"1817\" data-start=\"1814\"\u003e• Certified for installation on combustible surfaces with non corrosive feet\u003cbr data-end=\"1896\" data-start=\"1893\"\u003e• Designed for indoor or outdoor installation with appropriate venting\u003c\/p\u003e\n\u003chr data-end=\"1973\" data-start=\"1970\"\u003e\n\u003ch2 data-end=\"2000\" data-start=\"1975\"\u003e\u003cstrong data-end=\"1998\" data-start=\"1978\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"2368\" data-start=\"2001\"\u003eThe Hayward H400FDNASME Universal H-Series Heater is built to deliver powerful, reliable heating performance while meeting the structural and safety standards required for ASME regulated installations. Its 400,000 BTU output ensures fast temperature recovery, making it ideal for larger pools, high use facilities, and environments where downtime must be minimized.\u003c\/p\u003e\n\u003cp data-end=\"2898\" data-start=\"2370\"\u003eEngineered with Hayward’s industry leading hydraulics, the H-Series ASME heater includes premium components as standard equipment, eliminating the need for costly upgrades. The cupro nickel heat exchanger and bronze header provide exceptional durability in demanding water conditions, while the low-NOx combustion system supports environmental compliance. With flexible installation options and service friendly access, the H400FDNASME is a dependable, professional grade solution for long term pool and spa heating performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":49038518092088,"sku":"H400FDNASME","price":4299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/haywardasme400.png?v=1777922029"},{"product_id":"hayward-hdf275-universal-hc-series-dual-fuel-275btu","title":"Hayward | HDF275 | Universal HC Series Dual Fuel Heater – 275,000 BTU","description":"\u003cp data-end=\"494\" data-start=\"209\"\u003eEfficiently heat your in ground pool or spa with the Hayward HDF275 Universal HC Series Dual Fuel Heater. Delivering 275,000 BTU with natural gas or propane, this compact heater features the industry’s smallest footprint for easy replacement and reliable, energy efficient performance.\u003c\/p\u003e\n\u003chr data-end=\"499\" data-start=\"496\"\u003e\n\u003ch3 data-end=\"529\" data-start=\"501\"\u003eKey Features \u0026amp; Benefits:\u003c\/h3\u003e\n\u003cul data-end=\"1518\" data-start=\"531\"\u003e\n\u003cli data-end=\"666\" data-start=\"531\"\u003e\n\u003cp data-end=\"666\" data-start=\"533\"\u003e\u003cstrong data-end=\"566\" data-start=\"533\"\u003eIndustry’s Smallest Footprint\u003c\/strong\u003e\u003cbr data-end=\"569\" data-start=\"566\"\u003eCompact design allows replacement of almost any existing heater on standard pads, saving space.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"760\" data-start=\"668\"\u003e\n\u003cp data-end=\"760\" data-start=\"670\"\u003e\u003cstrong data-end=\"694\" data-start=\"670\"\u003eDual Fuel Capability\u003c\/strong\u003e\u003cbr data-end=\"697\" data-start=\"694\"\u003eOperates on natural gas or propane for flexible fuel options.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"853\" data-start=\"762\"\u003e\n\u003cp data-end=\"853\" data-start=\"764\"\u003e\u003cstrong data-end=\"789\" data-start=\"764\"\u003eHigh Heating Capacity\u003c\/strong\u003e\u003cbr data-end=\"792\" data-start=\"789\"\u003eProvides 275,000 BTU for rapid and consistent pool heating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"977\" data-start=\"855\"\u003e\n\u003cp data-end=\"977\" data-start=\"857\"\u003e\u003cstrong data-end=\"896\" data-start=\"857\"\u003eCompatible with Universal HC Series\u003c\/strong\u003e\u003cbr data-end=\"899\" data-start=\"896\"\u003eDesigned to integrate seamlessly with Hayward’s Universal HC Series systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1084\" data-start=\"979\"\u003e\n\u003cp data-end=\"1084\" data-start=\"981\"\u003e\u003cstrong data-end=\"1006\" data-start=\"981\"\u003eLow Ambient Operation\u003c\/strong\u003e\u003cbr data-end=\"1009\" data-start=\"1006\"\u003eEffective heating performance even in low ambient temperature conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1209\" data-start=\"1086\"\u003e\n\u003cp data-end=\"1209\" data-start=\"1088\"\u003e\u003cstrong data-end=\"1118\" data-start=\"1088\"\u003eDurable and Compact Design\u003c\/strong\u003e\u003cbr data-end=\"1121\" data-start=\"1118\"\u003eDimensions: 31\" H x 28\" W x 21\" L; weighs 135 lbs, built for long lasting outdoor use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1324\" data-start=\"1211\"\u003e\n\u003cp data-end=\"1324\" data-start=\"1213\"\u003e\u003cstrong data-end=\"1246\" data-start=\"1213\"\u003eEasy Installation \u0026amp; Operation\u003c\/strong\u003e\u003cbr data-end=\"1249\" data-start=\"1246\"\u003eExpert Line product designed for new construction or renovation projects.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1420\" data-start=\"1326\"\u003e\n\u003cp data-end=\"1420\" data-start=\"1328\"\u003e\u003cstrong data-end=\"1349\" data-start=\"1328\"\u003eWarranty Coverage\u003c\/strong\u003e\u003cbr data-end=\"1352\" data-start=\"1349\"\u003e1 year labor warranty and 3 year parts warranty for peace of mind.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1518\" data-start=\"1422\"\u003e\n\u003cp data-end=\"1518\" data-start=\"1424\"\u003e\u003cstrong data-end=\"1454\" data-start=\"1424\"\u003eIn-ground Pool Application\u003c\/strong\u003e\u003cbr data-end=\"1457\" data-start=\"1454\"\u003eIdeal for in ground pools, enhancing comfort and enjoyment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1523\" data-start=\"1520\"\u003e\n\u003ch3 data-end=\"1548\" data-start=\"1525\"\u003eProduct Overview:\u003c\/h3\u003e\n\u003cp data-end=\"2167\" data-start=\"1549\"\u003eThe Hayward HDF275 Universal HC Series Dual Fuel Heater offers a powerful 275,000 BTU output with the convenience of dual fuel operation (natural gas or propane). Its compact design the smallest footprint in its class allows easy replacement of nearly any existing pool heater without major modifications to the heater pad. Built for durability and efficient heating, the HDF275 supports low ambient operation, making it reliable year round. With easy installation and comprehensive warranties, it is an excellent choice for new construction or renovation projects requiring expert level equipment for in-ground pools.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":49471526830392,"sku":"HDF275","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Screenshot2024-11-23141714.png?v=1777922493"},{"product_id":"hayward-h400fdn-universal-h-series-natural-gas-400-000-btu-low-nox-gas-heater","title":"Hayward | H400FDN | Universal H-Series Natural Gas 400,000 BTU Low NOx Gas Heater","description":"\u003cp data-start=\"387\" data-end=\"928\"\u003eThe \u003cstrong data-start=\"391\" data-end=\"468\"\u003eHayward H400FDN Universal H-Series 400,000 BTU Low NOx Natural Gas Heater\u003c\/strong\u003e is a high-performance, energy-efficient solution designed to provide reliable heating for your pool or spa. Engineered with a standard cupro-nickel heat exchanger, this heater offers excellent saltwater and chemical corrosion resistance, ensuring longevity and durability. The exclusive \"Totally Managed\" water flow design and patented header bypass system enhance hydraulic efficiency, reducing pump run-time and resulting in significant energy cost savings.\u003c\/p\u003e\n\u003chr data-start=\"930\" data-end=\"933\"\u003e\n\u003ch3 data-start=\"935\" data-end=\"956\"\u003e\u003cstrong data-start=\"939\" data-end=\"956\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"957\" data-end=\"1524\"\u003e\n\u003cli data-start=\"957\" data-end=\"1038\"\u003e\n\u003cp data-start=\"959\" data-end=\"1038\"\u003e\u003cstrong data-start=\"959\" data-end=\"1000\"\u003eStandard Cupro-Nickel Heat Exchanger:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eProvides superior corrosion resistance, ideal for saltwater and chemically treated pools.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1039\" data-end=\"1122\"\u003e\n\u003cp data-start=\"1041\" data-end=\"1122\"\u003e\u003cstrong data-start=\"1041\" data-end=\"1084\"\u003eExclusive \"Totally Managed\" Water Flow:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eEnsures consistent water velocity through all tubes for faster heating and improved reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1123\" data-end=\"1197\"\u003e\n\u003cp data-start=\"1125\" data-end=\"1197\"\u003e\u003cstrong data-start=\"1125\" data-end=\"1159\"\u003ePatented Header Bypass Design:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eEnhances hydraulic performance, reducing pump run-time and saving energy.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1198\" data-end=\"1262\"\u003e\n\u003cp data-start=\"1200\" data-end=\"1262\"\u003e\u003cstrong data-start=\"1200\" data-end=\"1222\"\u003eLow NOx Emissions:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eMeets or exceeds air quality emission standards, including California's stringent regulations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1263\" data-end=\"1353\"\u003e\n\u003cp data-start=\"1265\" data-end=\"1353\"\u003e\u003cstrong data-start=\"1265\" data-end=\"1313\"\u003e2\" x 2 1\/2\" CPVC Union Plumbing Connections:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eFacilitates easy installation and service.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1354\" data-end=\"1420\"\u003e\n\u003cp data-start=\"1356\" data-end=\"1420\"\u003e\u003cstrong data-start=\"1356\" data-end=\"1380\"\u003eForced Draft System:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eMaintains precise air flow through the combustion chamber, eliminating the need for a high-wind stack.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1421\" data-end=\"1524\"\u003e\n\u003cp data-start=\"1423\" data-end=\"1524\"\u003e\u003cstrong data-start=\"1423\" data-end=\"1445\"\u003eLED Control Panel:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eProvides digital temperature readout and diagnostics for quick identification of components that might need service.\u003c\/span\u003e\u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1526\" data-end=\"1529\"\u003e\n\u003ch3 data-start=\"1531\" data-end=\"1556\"\u003e\u003cstrong data-start=\"1535\" data-end=\"1556\"\u003eProduct Overview:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1557\" data-end=\"2059\"\u003eThe \u003cstrong data-start=\"1561\" data-end=\"1638\"\u003eHayward H400FDN Universal H-Series 400,000 BTU Low NOx Natural Gas Heater\u003c\/strong\u003e combines advanced technology with user-friendly features to deliver optimal performance. Its compact design allows for flexible installation, and the forced draft system ensures consistent heating regardless of external weather conditions. Whether you're upgrading your existing system or installing a new one, this heater offers the reliability and efficiency you need to maintain a comfortable pool or spa environment.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable class=\"m-product-table\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eActive Defrost\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eApplication\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003eNew Construction, Renovation, Aftermarket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eBoost Mode\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eBrand\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003eHayward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eChannel\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003eExpert Line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eCircuit Amps\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e5.5000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eCooling Capability\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\n\u003cdiv class=\"spec-label p-2 w-full md:min-w-[220px] md:max-w-[220px] border-r border-[#e1e6ef] font-bold\"\u003e\u003cspan\u003eExchanger Material\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/th\u003e\n\u003ctd\u003e\u003cspan\u003eCupronickel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eFuel Type\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003eNatural Gas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eGTIN\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e610377027250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eHeating Capacity (BTU\/hr)\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e400000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eHertz\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eKilowatts\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e117 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eLabor Warranty\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e1-year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eLow Ambient Operation\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eMaster Carton Qty\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eMaximum Fuse Breaker Size (Amps)\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e15.0000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003ePallet Qty\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eParts Warranty\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e3-year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003ePhase Heaters\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e1.0000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003ePool Type\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003eIn Ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eRear Clearance - Heaters\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e6 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eRefrigerant\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eSeries Heaters\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003eUniversal HSeries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eSide Clearance - Heaters\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e12 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eSilent Mode\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eWater Flow Rate Max\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"m-product-table__row\"\u003e\n\u003cth class=\"m-product-table__row-header\"\u003eWater Flow Rate Min\u003c\/th\u003e\n\u003ctd class=\"m-product-table__item\"\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLiterature and Manuals:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/hayward.com\/media\/akeneo_connector\/asset_files\/L\/I\/LITUHS22C_Universal_HSeries_Brochure_Bilingual_d5bc.pdf\" class=\"a-btn a-btn--text brochure-link\" target=\"_blank\"\u003e\u003cspan class=\"a-btn--text-inner\"\u003e\u003cspan class=\"a-btn__label\"\u003eUniversal H Series Brochure (LITUHS22C) Bilingual\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/hayward.com\/media\/akeneo_connector\/asset_files\/C\/u\/CuproNickelSellSheet_b2bc.pdf\" class=\"a-btn a-btn--text brochure-link\" target=\"_blank\"\u003e\u003cspan class=\"a-btn--text-inner\"\u003e\u003cspan class=\"a-btn__label\"\u003eCupro Nickel Sell Sheet\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"a-btn--text-inner\"\u003e\u003cspan class=\"a-btn__label\"\u003e\u003ca href=\"https:\/\/hayward.com\/media\/akeneo_connector\/asset_files\/U\/H\/UHSa_UHS_HTG_5092.pdf\" class=\"a-btn a-btn--text brochure-link\" target=\"_blank\"\u003eUHS Heater How To Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"a-btn--text-inner\"\u003e\u003cspan class=\"a-btn__label\"\u003e\u003ca href=\"https:\/\/hayward.com\/media\/akeneo_connector\/asset_files\/5\/1\/51300004201_RevE_fb9b.pdf\" class=\"a-btn a-btn--text brochure-link\" target=\"_blank\"\u003eIn-Ground Pool\/Spa Gas Heaters Owner's Manual\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"a-btn--text-inner\"\u003e\u003cspan class=\"a-btn__label\"\u003e\u003ca href=\"https:\/\/hayward.com\/media\/akeneo_connector\/asset_files\/u\/h\/uhs_qrg_af48.pdf\" class=\"a-btn a-btn--text brochure-link\" target=\"_blank\"\u003eUniversal H-Series Quick Start Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50134922690872,"sku":"H400FDN","price":3999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Screenshot2025-04-30104931.png?v=1777922578"},{"product_id":"haywardhseriesnaturalgasheater135kbtu120240v60hzsinglephasew3h135fdnhppw3h135fdn","title":"Hayward | W3H135FDN | 135K BTU Natural Gas Pool Heater – Compact, Energy-Efficient Design","description":"\u003c!--split--\u003e\n\u003cp data-start=\"294\" data-end=\"626\"\u003e\u003cstrong data-start=\"294\" data-end=\"364\"\u003eThe Hayward W3H135FDN H-Series 135,000 BTU Natural Gas Pool Heater\u003c\/strong\u003e is a compact and efficient heating solution designed for small in-ground and above-ground pools and spas. Engineered for durability, efficiency, and ease of use, it provides reliable heating performance while operating on standard 120\/240V single-phase power.\u003c\/p\u003e\n\u003chr data-start=\"628\" data-end=\"631\"\u003e\n\u003ch3 data-start=\"633\" data-end=\"655\"\u003e\u003cstrong data-start=\"637\" data-end=\"653\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"657\" data-end=\"1285\"\u003e\n\u003cli data-start=\"657\" data-end=\"714\"\u003e\n\u003cp data-start=\"659\" data-end=\"714\"\u003e135,000 BTU heating capacity for small pools and spas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"715\" data-end=\"766\"\u003e\n\u003cp data-start=\"717\" data-end=\"766\"\u003eOperates on 120\/240V, 60 Hz, single-phase power\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"767\" data-end=\"820\"\u003e\n\u003cp data-start=\"769\" data-end=\"820\"\u003eEnergy-efficient design for lower operating costs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"821\" data-end=\"899\"\u003e\n\u003cp data-start=\"823\" data-end=\"899\"\u003eCupro-nickel heat exchanger for corrosion resistance and long service life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"900\" data-end=\"959\"\u003e\n\u003cp data-start=\"902\" data-end=\"959\"\u003eRapid heating capability for quick temperature recovery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"960\" data-end=\"1030\"\u003e\n\u003cp data-start=\"962\" data-end=\"1030\"\u003eEasy-to-use digital control panel for precise temperature settings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1031\" data-end=\"1101\"\u003e\n\u003cp data-start=\"1033\" data-end=\"1101\"\u003ePolymer header and bypass valve for improved hydraulic performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1102\" data-end=\"1161\"\u003e\n\u003cp data-start=\"1104\" data-end=\"1161\"\u003eCompact footprint for easy installation in tight spaces\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1162\" data-end=\"1223\"\u003e\n\u003cp data-start=\"1164\" data-end=\"1223\"\u003eSuitable for in-ground and above-ground pool applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1224\" data-end=\"1285\"\u003e\n\u003cp data-start=\"1226\" data-end=\"1285\"\u003eQuiet operation for a more enjoyable backyard environment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1287\" data-end=\"1290\"\u003e\n\u003ch3 data-start=\"1292\" data-end=\"1318\"\u003e\u003cstrong data-start=\"1296\" data-end=\"1316\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1319\" data-end=\"2067\"\u003eThe Hayward W3H135FDN H-Series Natural Gas Pool Heater offers dependable heating in a compact package, making it ideal for smaller pools and spas. With a 135,000 BTU output, it quickly and efficiently heats water to the desired temperature while maintaining low operating costs. Its cupro-nickel heat exchanger provides excellent resistance to corrosion, ensuring long-lasting performance even in challenging water conditions. Designed for straightforward installation, it operates on standard 120\/240V single-phase power and features a digital LED control panel for ease of use. The compact design and quiet operation make the W3H135FDN a perfect choice for pool owners seeking a balance of performance, efficiency, and space-saving convenience.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50815350079800,"sku":"W3H135FDN","price":2399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HPPW3H135FDN_0.jpg?v=1753092014"},{"product_id":"haywardhseriespropanegasheater135kbtu120240v60hzsinglephasew3h135fdphppw3h135fdp","title":"Hayward | W3H135FDP | H-Series Propane Gas Heater, 135K BTU, 120\/240 V, 60 Hz, Single Phase | W3H135FDP","description":"\u003cp\u003e\u003cstrong\u003eHayward H-Series 135,000 BTU Propane Pool and Spa Heater\u003c\/strong\u003e is the ideal choice for above-ground pools and spas, combining advanced technology with user-friendly operation and exceptional performance. With a powerful 135,000 BTU rating, this heater ensures rapid heating, allowing you to enjoy your pool or spa sooner. \u003cmeta charset=\"utf-8\"\u003eUpgrade your pool or spa heating system with the Hayward H-Series Propane Pool and Spa Heater and experience the perfect blend of performance, durability, and efficiency.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEfficient Heating Performance:\u003c\/strong\u003e Industry-leading hydraulic design provides superior heating efficiency and faster speed-to-heat capability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Features a robust cupro-nickel heat exchanger that offers superior corrosion resistance, ensuring long-lasting durability even with unbalanced water chemistry.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUser-Friendly Controls:\u003c\/strong\u003e The intuitive electronic control panel is easy to use, allowing you to set and adjust temperatures effortlessly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironmentally Friendly:\u003c\/strong\u003e Designed with low NOx emissions, this heater minimizes environmental impact while delivering powerful heating performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnergy Efficient:\u003c\/strong\u003e Optimized water flow reduces pump run time, saving energy and lowering operational costs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Can be integrated with remote systems (2-wire and 3-wire) for enhanced control and convenience.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHayward H-Series Propane Pool and Spa Heater\u003c\/strong\u003e for a reliable and efficient heating solution. Its superior performance, durable construction, and environmentally friendly design make it a top choice for pool and spa owners looking to enhance their swimming experience. Enjoy quick and efficient heating, easy-to-use controls, and energy savings with this high-quality heater.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHeating Capacity:\u003c\/strong\u003e 135,000 BTU\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Propane\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermal Efficiency:\u003c\/strong\u003e 82%\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVoltage:\u003c\/strong\u003e 120\/240V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2-year parts warranty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--split--\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50815350178104,"sku":"W3H135FDP","price":2399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HPPW3H135FDP_0.jpg?v=1753092014"},{"product_id":"haywarduniversalhseriesnaturalgasheater150000btuslownoxw3h150fdnhppw3h150fdn","title":"Hayward | W3H150FDN | Universal H-Series 150K BTU Natural Gas Pool Heater – Low NOx, Compact \u0026 Efficient","description":"\u003c!--split--\u003e\n\u003cp data-start=\"291\" data-end=\"741\"\u003e\u003cstrong data-start=\"291\" data-end=\"371\"\u003eThe Hayward W3H150FDN Universal H-Series 150,000 BTU Natural Gas Pool Heater\u003c\/strong\u003e is a compact, energy-efficient heating solution designed for smaller in-ground pools and spas. With low NOx emissions to meet air quality standards, it delivers reliable performance while maintaining environmentally responsible operation. Its durable cupro-nickel heat exchanger ensures long-lasting protection against corrosion, even in challenging water conditions.\u003c\/p\u003e\n\u003chr data-start=\"743\" data-end=\"746\"\u003e\n\u003ch3 data-start=\"748\" data-end=\"770\"\u003e\u003cstrong data-start=\"752\" data-end=\"768\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"772\" data-end=\"1488\"\u003e\n\u003cli data-start=\"772\" data-end=\"839\"\u003e\n\u003cp data-start=\"774\" data-end=\"839\"\u003e150,000 BTU heating capacity for small in-ground pools and spas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"840\" data-end=\"904\"\u003e\n\u003cp data-start=\"842\" data-end=\"904\"\u003eLow NOx emissions comply with strict air quality regulations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"905\" data-end=\"963\"\u003e\n\u003cp data-start=\"907\" data-end=\"963\"\u003eEnergy-efficient design helps reduce operational costs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"964\" data-end=\"1054\"\u003e\n\u003cp data-start=\"966\" data-end=\"1054\"\u003eCupro-nickel heat exchanger for superior corrosion resistance and long-term durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1055\" data-end=\"1122\"\u003e\n\u003cp data-start=\"1057\" data-end=\"1122\"\u003eFast heating capability for quick water temperature adjustments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1123\" data-end=\"1203\"\u003e\n\u003cp data-start=\"1125\" data-end=\"1203\"\u003eCompatible with Hayward automation systems for remote control and scheduling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1204\" data-end=\"1277\"\u003e\n\u003cp data-start=\"1206\" data-end=\"1277\"\u003eDigital LED control panel for easy temperature setting and monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1278\" data-end=\"1354\"\u003e\n\u003cp data-start=\"1280\" data-end=\"1354\"\u003ePolymer header and bypass valve design for improved hydraulic efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1355\" data-end=\"1427\"\u003e\n\u003cp data-start=\"1357\" data-end=\"1427\"\u003eSuitable for use in various climates, including coastal environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1428\" data-end=\"1488\"\u003e\n\u003cp data-start=\"1430\" data-end=\"1488\"\u003eQuiet operation for a more enjoyable backyard experience\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1490\" data-end=\"1493\"\u003e\n\u003ch3 data-start=\"1495\" data-end=\"1521\"\u003e\u003cstrong data-start=\"1499\" data-end=\"1519\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1522\" data-end=\"2191\"\u003eThe Hayward W3H150FDN Universal H-Series Natural Gas Pool Heater offers powerful heating performance in a compact size, making it ideal for small pools and spas. Delivering 150,000 BTUs of output, it quickly heats water to your desired temperature while maintaining energy efficiency. The low NOx design meets stringent environmental standards, and the cupro-nickel heat exchanger provides excellent corrosion resistance for long-lasting reliability. With its polymer header and bypass valve for optimized water flow, user-friendly digital controls, and quiet operation, the W3H150FDN is a smart, dependable choice for efficient pool heating in smaller installations.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50815350243640,"sku":"W3H150FDN","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HPPW3H150FDN_0_5cab07fe-1f20-4f4d-98ff-40a6f0fe1be7.jpg?v=1753092015"},{"product_id":"haywarduniversalhseriespropanegasheater150000btuslownoxw3h150fdphppw3h150fdp","title":"Hayward | W3H150FDP | Universal H-Series 200K BTU Natural Gas Pool Heater – Low NOx, Energy-Efficient Heating","description":"\u003c!--split--\u003e\n\u003cp data-start=\"386\" data-end=\"780\"\u003e\u003cstrong data-start=\"386\" data-end=\"462\"\u003eThe Hayward W3H150FDP Universal H-Series 150,000 BTU Propane Pool Heater\u003c\/strong\u003e delivers reliable, energy-efficient heating for small in-ground pools and spas. With a low NOx design to meet strict air quality standards, it combines strong performance with environmentally responsible operation. Its cupro-nickel heat exchanger provides superior resistance to corrosion and harsh water chemistry.\u003c\/p\u003e\n\u003chr data-start=\"782\" data-end=\"785\"\u003e\n\u003ch3 data-start=\"787\" data-end=\"809\"\u003e\u003cstrong data-start=\"791\" data-end=\"807\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"811\" data-end=\"1404\"\u003e\n\u003cli data-start=\"811\" data-end=\"878\"\u003e\n\u003cp data-start=\"813\" data-end=\"878\"\u003e150,000 BTU heating capacity for small in-ground pools and spas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"879\" data-end=\"906\"\u003e\n\u003cp data-start=\"881\" data-end=\"906\"\u003eOperates on propane gas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"907\" data-end=\"964\"\u003e\n\u003cp data-start=\"909\" data-end=\"964\"\u003eLow NOx emissions comply with air quality regulations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"965\" data-end=\"1022\"\u003e\n\u003cp data-start=\"967\" data-end=\"1022\"\u003eEnergy-efficient design helps reduce fuel consumption\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1023\" data-end=\"1089\"\u003e\n\u003cp data-start=\"1025\" data-end=\"1089\"\u003eCupro-nickel heat exchanger for long-term corrosion resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1090\" data-end=\"1155\"\u003e\n\u003cp data-start=\"1092\" data-end=\"1155\"\u003eDigital LED control panel for precise temperature adjustments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1156\" data-end=\"1232\"\u003e\n\u003cp data-start=\"1158\" data-end=\"1232\"\u003ePolymer header and bypass valve design for improved hydraulic efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1233\" data-end=\"1293\"\u003e\n\u003cp data-start=\"1235\" data-end=\"1293\"\u003eRapid heating performance for quick temperature recovery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1294\" data-end=\"1354\"\u003e\n\u003cp data-start=\"1296\" data-end=\"1354\"\u003eSuitable for various climates, including coastal regions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1355\" data-end=\"1404\"\u003e\n\u003cp data-start=\"1357\" data-end=\"1404\"\u003eQuiet operation for enhanced backyard comfort\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1406\" data-end=\"1409\"\u003e\n\u003ch3 data-start=\"1411\" data-end=\"1437\"\u003e\u003cstrong data-start=\"1415\" data-end=\"1435\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1438\" data-end=\"2137\"\u003eThe Hayward W3H150FDP Universal H-Series 150K BTU Propane Pool Heater offers compact yet powerful heating for smaller pools and spas. Engineered for efficiency, it quickly raises water temperature and maintains consistent heat while minimizing fuel usage. The low NOx combustion system meets environmental standards, and the cupro-nickel heat exchanger ensures durability in saltwater or chemically aggressive conditions. Its polymer header and bypass valve improve water flow, reducing energy costs, while the digital controls make operation simple. Designed for long-lasting performance, the W3H150FDP is a great choice for pool owners who want reliable propane heating in a space-saving design.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50815350276408,"sku":"W3H150FDP","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HPPW3H150FDP_0_b0b038b8-c377-4b69-93bb-13d989de548d.jpg?v=1753092015"},{"product_id":"haywarduniversalhseriesnaturalgasheater200000btuslownoxw3h200fdnhppw3h200fdn","title":"Hayward | W3H200FDN | Universal H-Series 200K BTU Natural Gas Pool Heater – Low NOx, Energy-Efficient Heating","description":"\u003c!--split--\u003e\n\u003cp data-start=\"296\" data-end=\"740\"\u003e\u003cstrong data-start=\"296\" data-end=\"376\"\u003eThe Hayward W3H200FDN Universal H-Series 200,000 BTU Natural Gas Pool Heater\u003c\/strong\u003e delivers efficient, reliable heating for in-ground pools and spas. Designed with low NOx emissions to meet strict air quality standards, it provides powerful performance while maintaining environmentally responsible operation. A durable cupro-nickel heat exchanger offers exceptional corrosion resistance, making it suitable for saltwater and high-flow systems.\u003c\/p\u003e\n\u003chr data-start=\"742\" data-end=\"745\"\u003e\n\u003ch3 data-start=\"747\" data-end=\"769\"\u003e\u003cstrong data-start=\"751\" data-end=\"767\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"771\" data-end=\"1467\"\u003e\n\u003cli data-start=\"771\" data-end=\"848\"\u003e\n\u003cp data-start=\"773\" data-end=\"848\"\u003e200,000 BTU heating capacity for small-to-medium in-ground pools and spas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"849\" data-end=\"911\"\u003e\n\u003cp data-start=\"851\" data-end=\"911\"\u003eLow NOx emissions meet air quality compliance requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"912\" data-end=\"968\"\u003e\n\u003cp data-start=\"914\" data-end=\"968\"\u003eEnergy-efficient design helps reduce operating costs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"969\" data-end=\"1049\"\u003e\n\u003cp data-start=\"971\" data-end=\"1049\"\u003eCupro-nickel heat exchanger for superior durability and corrosion resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1050\" data-end=\"1098\"\u003e\n\u003cp data-start=\"1052\" data-end=\"1098\"\u003eRapid heating for quick temperature recovery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1099\" data-end=\"1181\"\u003e\n\u003cp data-start=\"1101\" data-end=\"1181\"\u003eCompatible with Hayward automation systems for remote operation and scheduling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1182\" data-end=\"1255\"\u003e\n\u003cp data-start=\"1184\" data-end=\"1255\"\u003eDigital LED control panel for precise and easy temperature adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1256\" data-end=\"1332\"\u003e\n\u003cp data-start=\"1258\" data-end=\"1332\"\u003ePolymer header and bypass valve design for improved hydraulic efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1333\" data-end=\"1406\"\u003e\n\u003cp data-start=\"1335\" data-end=\"1406\"\u003eSuitable for a wide range of climates, including coastal environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1407\" data-end=\"1467\"\u003e\n\u003cp data-start=\"1409\" data-end=\"1467\"\u003eQuiet operation for a more enjoyable backyard atmosphere\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1469\" data-end=\"1472\"\u003e\n\u003ch3 data-start=\"1474\" data-end=\"1500\"\u003e\u003cstrong data-start=\"1478\" data-end=\"1498\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1501\" data-end=\"2246\"\u003eThe Hayward W3H200FDN Universal H-Series Natural Gas Pool Heater offers a perfect balance of performance, efficiency, and durability for small-to-medium pools and spas. With a 200,000 BTU output, it heats water quickly and maintains consistent temperatures, extending your swimming season with comfort and ease. The low NOx design meets strict environmental standards, while the cupro-nickel heat exchanger protects against corrosion in harsh water conditions. Its polymer header and bypass valve design optimize water flow for greater energy efficiency, and the digital controls make operation simple. Built for quiet operation and long-term reliability, the W3H200FDN is an ideal choice for pool owners seeking efficient natural gas heating.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50815350538552,"sku":"W3H200FDN","price":3699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HPPW3H200FDN_0_41b7b902-3448-41bf-9312-4f8a6b432cbd.jpg?v=1753092016"},{"product_id":"haywarduniversalhseriespropanegasheater200000btuslownoxw3h200fdphppw3h200fdp","title":"Hayward | W3H200FDP | Universal H-Series 200K BTU Propane Pool Heater – Low NOx, Energy-Efficient Heating","description":"\u003c!--split--\u003e\n\u003cp data-start=\"286\" data-end=\"739\"\u003e\u003cstrong data-start=\"286\" data-end=\"366\"\u003eThe Hayward W3H200FDP Universal H-Series 200,000 BTU Propane Gas Pool Heater\u003c\/strong\u003e provides efficient, dependable heating for in-ground pools and spas. Designed with low NOx emissions to meet strict air quality standards, it delivers powerful heating performance while maintaining environmentally responsible operation. Its cupro-nickel heat exchanger ensures long-lasting durability and corrosion resistance, even in saltwater and high-flow conditions.\u003c\/p\u003e\n\u003chr data-start=\"741\" data-end=\"744\"\u003e\n\u003ch3 data-start=\"746\" data-end=\"768\"\u003e\u003cstrong data-start=\"750\" data-end=\"766\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"770\" data-end=\"1444\"\u003e\n\u003cli data-start=\"770\" data-end=\"831\"\u003e\n\u003cp data-start=\"772\" data-end=\"831\"\u003e200,000 BTU heating capacity for in-ground pools and spas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"832\" data-end=\"891\"\u003e\n\u003cp data-start=\"834\" data-end=\"891\"\u003eLow NOx emissions meet air quality compliance standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"892\" data-end=\"942\"\u003e\n\u003cp data-start=\"894\" data-end=\"942\"\u003eHigh-efficiency design reduces operating costs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"943\" data-end=\"1030\"\u003e\n\u003cp data-start=\"945\" data-end=\"1030\"\u003eCupro-nickel heat exchanger for superior corrosion resistance and long service life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1031\" data-end=\"1089\"\u003e\n\u003cp data-start=\"1033\" data-end=\"1089\"\u003eFast heating capability for quick temperature recovery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1090\" data-end=\"1169\"\u003e\n\u003cp data-start=\"1092\" data-end=\"1169\"\u003eCompatible with Hayward automation systems for remote operation and control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1170\" data-end=\"1246\"\u003e\n\u003cp data-start=\"1172\" data-end=\"1246\"\u003eEasy-to-use digital LED control panel for precise temperature management\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1247\" data-end=\"1323\"\u003e\n\u003cp data-start=\"1249\" data-end=\"1323\"\u003ePolymer header and bypass valve design for improved hydraulic efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1324\" data-end=\"1382\"\u003e\n\u003cp data-start=\"1326\" data-end=\"1382\"\u003eSuitable for various climates, including coastal areas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1383\" data-end=\"1444\"\u003e\n\u003cp data-start=\"1385\" data-end=\"1444\"\u003eQuiet operation for a more enjoyable backyard environment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1446\" data-end=\"1449\"\u003e\n\u003ch3 data-start=\"1451\" data-end=\"1477\"\u003e\u003cstrong data-start=\"1455\" data-end=\"1475\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1478\" data-end=\"2246\"\u003eThe Hayward W3H200FDP Universal H-Series Propane Gas Pool Heater offers reliable, high-efficiency heating to keep your pool or spa at the perfect temperature. With a 200,000 BTU output, it’s ideal for smaller to medium-sized pools, providing quick temperature adjustments and extended swimming seasons. Its low NOx design meets stringent environmental requirements, while the cupro-nickel heat exchanger resists corrosion for long-term performance. The polymer header and bypass valve enhance water flow efficiency, reducing energy usage, and the digital LED control panel makes it simple to set and maintain your preferred temperature. Quiet, efficient, and built for durability, this heater is a smart choice for pool owners looking for comfort and energy savings.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50815350571320,"sku":"W3H200FDP","price":3699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HPPW3H200FDP_0_cc57d531-d214-490c-98b9-0c68720a2740.jpg?v=1753092016"},{"product_id":"haywarduniversalhseriesnaturalgasheater250000btuslownoxw3h250fdnhppw3h250fdn","title":"Hayward | W3H250FDN | Universal H-Series 250K BTU Natural Gas Pool Heater – Low NOx, Energy-Efficient Heating","description":"\u003c!--split--\u003e\n\u003cp data-start=\"296\" data-end=\"738\"\u003e\u003cstrong data-start=\"296\" data-end=\"376\"\u003eThe Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool Heater\u003c\/strong\u003e delivers dependable, energy-efficient heating for in-ground pools and spas. Engineered with low NOx emissions to meet strict air quality standards, it provides powerful heating performance while being environmentally responsible. Its durable cupro-nickel heat exchanger ensures long-lasting resistance to corrosion, even in saltwater and high-flow conditions.\u003c\/p\u003e\n\u003chr data-start=\"740\" data-end=\"743\"\u003e\n\u003ch3 data-start=\"745\" data-end=\"767\"\u003e\u003cstrong data-start=\"749\" data-end=\"765\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"769\" data-end=\"1452\"\u003e\n\u003cli data-start=\"769\" data-end=\"830\"\u003e\n\u003cp data-start=\"771\" data-end=\"830\"\u003e250,000 BTU heating capacity for in-ground pools and spas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"831\" data-end=\"891\"\u003e\n\u003cp data-start=\"833\" data-end=\"891\"\u003eLow NOx emissions to comply with air quality regulations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"892\" data-end=\"949\"\u003e\n\u003cp data-start=\"894\" data-end=\"949\"\u003eEnergy-efficient design for reduced operational costs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"950\" data-end=\"1030\"\u003e\n\u003cp data-start=\"952\" data-end=\"1030\"\u003eCupro-nickel heat exchanger for superior corrosion resistance and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1031\" data-end=\"1090\"\u003e\n\u003cp data-start=\"1033\" data-end=\"1090\"\u003eRapid heating performance for fast temperature recovery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1091\" data-end=\"1171\"\u003e\n\u003cp data-start=\"1093\" data-end=\"1171\"\u003eCompatible with Hayward automation systems for remote control and scheduling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1172\" data-end=\"1248\"\u003e\n\u003cp data-start=\"1174\" data-end=\"1248\"\u003eEasy-to-use digital LED control panel for precise temperature adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1249\" data-end=\"1325\"\u003e\n\u003cp data-start=\"1251\" data-end=\"1325\"\u003ePolymer header and bypass valve design for improved hydraulic efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1326\" data-end=\"1391\"\u003e\n\u003cp data-start=\"1328\" data-end=\"1391\"\u003eSuitable for various climates, including coastal environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1392\" data-end=\"1452\"\u003e\n\u003cp data-start=\"1394\" data-end=\"1452\"\u003eQuiet operation for a more enjoyable poolside experience\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1454\" data-end=\"1457\"\u003e\n\u003ch3 data-start=\"1459\" data-end=\"1485\"\u003e\u003cstrong data-start=\"1463\" data-end=\"1483\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1486\" data-end=\"2259\"\u003eThe Hayward W3H250FDN Universal H-Series Natural Gas Pool Heater offers reliable, high-performance heating in an energy-efficient package. With its 250,000 BTU output, it quickly warms your pool or spa, extending your swimming season and enhancing comfort. The low NOx design meets stringent environmental regulations, making it a smart choice for eco-conscious pool owners. Its cupro-nickel heat exchanger provides exceptional corrosion resistance, ensuring durability in demanding water conditions. The advanced polymer header and bypass valve optimize water flow for greater efficiency, while the intuitive digital controls make operation simple. Quiet, efficient, and built to last, the W3H250FDN is ideal for residential pools seeking consistent heating performance.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50815350604088,"sku":"W3H250FDN","price":3999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HPPW3H250FDN_0_357e7935-6ed2-4ca7-95f5-1cdaf2000527.jpg?v=1753092016"},{"product_id":"haywarduniversalhseriespropanegasheater250000btuslownoxw3h250fdphppw3h250fdp","title":"Hayward | W3H250FDP | Universal H-Series 250K BTU Propane Pool Heater – Low NOx, Energy-Efficient","description":"\u003c!--split--\u003e\n\u003cp data-start=\"300\" data-end=\"751\"\u003e\u003cstrong data-start=\"300\" data-end=\"363\"\u003eThe Hayward W3H250FDP Universal H-Series Propane Gas Heater\u003c\/strong\u003e delivers 250,000 BTUs of powerful, energy-efficient heating for in-ground pools and spas. Designed with low NOx emissions to meet air quality standards, it offers environmentally responsible performance without sacrificing heating speed or reliability. Perfect for extending your swimming season, it features a durable cupro-nickel heat exchanger for long-lasting corrosion resistance.\u003c\/p\u003e\n\u003chr data-start=\"753\" data-end=\"756\"\u003e\n\u003ch3 data-start=\"758\" data-end=\"780\"\u003e\u003cstrong data-start=\"762\" data-end=\"778\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"782\" data-end=\"1478\"\u003e\n\u003cli data-start=\"782\" data-end=\"843\"\u003e\n\u003cp data-start=\"784\" data-end=\"843\"\u003e250,000 BTU heating capacity for in-ground pools and spas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"844\" data-end=\"905\"\u003e\n\u003cp data-start=\"846\" data-end=\"905\"\u003eLow NOx emissions to meet strict air quality requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"906\" data-end=\"957\"\u003e\n\u003cp data-start=\"908\" data-end=\"957\"\u003eEnergy-efficient design reduces operating costs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"958\" data-end=\"1023\"\u003e\n\u003cp data-start=\"960\" data-end=\"1023\"\u003eCupro-nickel heat exchanger for superior corrosion resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1024\" data-end=\"1102\"\u003e\n\u003cp data-start=\"1026\" data-end=\"1102\"\u003eRapid heating capability to quickly bring water to the desired temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1103\" data-end=\"1168\"\u003e\n\u003cp data-start=\"1105\" data-end=\"1168\"\u003eCompatible with Hayward automation systems for remote control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1169\" data-end=\"1245\"\u003e\n\u003cp data-start=\"1171\" data-end=\"1245\"\u003eEasy-to-use digital LED control panel for precise temperature management\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1246\" data-end=\"1337\"\u003e\n\u003cp data-start=\"1248\" data-end=\"1337\"\u003ePolymer header and bypass valve design for enhanced durability and hydraulic efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1338\" data-end=\"1405\"\u003e\n\u003cp data-start=\"1340\" data-end=\"1405\"\u003eSuitable for use in various climates, including coastal regions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1406\" data-end=\"1478\"\u003e\n\u003cp data-start=\"1408\" data-end=\"1478\"\u003eDesigned for quiet operation to maintain a peaceful pool environment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1480\" data-end=\"1483\"\u003e\n\u003ch3 data-start=\"1485\" data-end=\"1511\"\u003e\u003cstrong data-start=\"1489\" data-end=\"1509\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1512\" data-end=\"2228\"\u003eThe Hayward W3H250FDP Universal H-Series 250K BTU Propane Pool Heater combines strong heating power with energy efficiency and environmentally conscious performance. Its low NOx design meets stringent air quality standards, while the cupro-nickel heat exchanger provides maximum protection against corrosion, especially in high-flow or saltwater conditions. The advanced polymer header and bypass valve design improve hydraulic efficiency, reducing pump run time and saving on energy costs. With user-friendly digital controls and automation compatibility, this heater delivers quick, reliable, and quiet heating—making it an excellent choice for pool owners who want comfort, efficiency, and long-term durability.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50815350636856,"sku":"W3H250FDP","price":3999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HPPW3H250FDP_0_6780180a-7bc2-401f-a945-9e34e9efbbef.jpg?v=1753092017"},{"product_id":"haywarduniversalhseriesnaturalgasheater400000btuslownoxw3h400fdnhppw3h400fdn","title":"Hayward | W3H400FDN | Universal H-Series Natural Gas Heater 400,000 BTUs, Low NOx","description":"\u003c!--split--\u003e\n\u003cp data-start=\"293\" data-end=\"735\"\u003e\u003cstrong data-start=\"293\" data-end=\"373\"\u003eThe Hayward W3H400FDN Universal H-Series 400,000 BTU Natural Gas Pool Heater\u003c\/strong\u003e is a high capacity, energy efficient heating solution designed for large residential pools and spas. Engineered with low NOx emissions to meet strict air quality standards, it delivers powerful and environmentally responsible heating performance. A durable cupro nickel heat exchanger ensures long term reliability, even in saltwater and high flow conditions.\u003c\/p\u003e\n\u003chr data-start=\"737\" data-end=\"740\"\u003e\n\u003ch3 data-start=\"742\" data-end=\"764\"\u003e\u003cstrong data-start=\"746\" data-end=\"762\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"766\" data-end=\"1445\"\u003e\n\u003cli data-start=\"766\" data-end=\"833\"\u003e\n\u003cp data-start=\"768\" data-end=\"833\"\u003e400,000 BTU heating capacity for large in ground pools and spas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"834\" data-end=\"894\"\u003e\n\u003cp data-start=\"836\" data-end=\"894\"\u003eLow NOx emissions to comply with air quality regulations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"895\" data-end=\"948\"\u003e\n\u003cp data-start=\"897\" data-end=\"948\"\u003eEnergy efficient design reduces operational costs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"949\" data-end=\"1028\"\u003e\n\u003cp data-start=\"951\" data-end=\"1028\"\u003eCupro nickel heat exchanger for maximum corrosion resistance and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1029\" data-end=\"1096\"\u003e\n\u003cp data-start=\"1031\" data-end=\"1096\"\u003eRapid heating performance to quickly reach desired temperatures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1097\" data-end=\"1176\"\u003e\n\u003cp data-start=\"1099\" data-end=\"1176\"\u003eCompatible with Hayward automation systems for remote operation and control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1177\" data-end=\"1255\"\u003e\n\u003cp data-start=\"1179\" data-end=\"1255\"\u003eUser friendly digital LED control panel for precise temperature management\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1256\" data-end=\"1332\"\u003e\n\u003cp data-start=\"1258\" data-end=\"1332\"\u003ePolymer header and bypass valve design for improved hydraulic efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1333\" data-end=\"1384\"\u003e\n\u003cp data-start=\"1335\" data-end=\"1384\"\u003eSuitable for coastal and harsh water conditions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1385\" data-end=\"1445\"\u003e\n\u003cp data-start=\"1387\" data-end=\"1445\"\u003eQuiet operation for a more enjoyable backyard experience\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1447\" data-end=\"1450\"\u003e\n\u003ch3 data-start=\"1452\" data-end=\"1478\"\u003e\u003cstrong data-start=\"1456\" data-end=\"1476\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1479\" data-end=\"2260\"\u003eThe Hayward W3H400FDN Universal H-Series Natural Gas Pool Heater delivers unmatched heating power for large in ground pools and spas, with a 400,000 BTU output that ensures fast temperature recovery and consistent warmth. Its low NOx design meets stringent environmental standards, making it an excellent choice for eco conscious pool owners. The cupro-nickel heat exchanger offers superior corrosion resistance, extending the unit’s lifespan in challenging water environments. Engineered with a polymer header and bypass valve for improved hydraulic performance, this heater minimizes pump run time and enhances energy savings. With simple digital controls and automation compatibility, the W3H400FDN offers high capacity heating that is efficient, durable, and easy to operate.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50815350669624,"sku":"W3H400FDN","price":5099.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/2025_Universal_H_Series_Heater_W3H400FDP_Amazon_Assets_Carousel_02_939e.png?v=1777767668"},{"product_id":"haywarduniversalhseriespropanegasheater400000btuslownoxw3h400fdphppw3h400fdp","title":"Hayward | W3H400FDP | Universal H-Series Propane Gas Heater 400,000 BTUs, Low NOx ","description":"\u003c!--split--\u003e\n\u003cp data-start=\"305\" data-end=\"734\"\u003e\u003cstrong data-start=\"305\" data-end=\"385\"\u003eThe Hayward W3H400FDP Universal H-Series 400,000 BTU Propane Gas Pool Heater\u003c\/strong\u003e delivers maximum heating power for large residential pools and spas. Built with low NOx emissions to meet strict air quality standards, it provides powerful, efficient, and environmentally responsible heating. A durable cupro-nickel heat exchanger offers exceptional corrosion resistance, making it ideal for saltwater and high-flow pool systems.\u003c\/p\u003e\n\u003chr data-start=\"736\" data-end=\"739\"\u003e\n\u003ch3 data-start=\"741\" data-end=\"763\"\u003e\u003cstrong data-start=\"745\" data-end=\"761\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"765\" data-end=\"1414\"\u003e\n\u003cli data-start=\"765\" data-end=\"832\"\u003e\n\u003cp data-start=\"767\" data-end=\"832\"\u003e400,000 BTU heating capacity for large in-ground pools and spas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"833\" data-end=\"883\"\u003e\n\u003cp data-start=\"835\" data-end=\"883\"\u003eLow NOx emissions meet air quality regulations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"884\" data-end=\"937\"\u003e\n\u003cp data-start=\"886\" data-end=\"937\"\u003eEnergy-efficient design reduces operational costs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"938\" data-end=\"1019\"\u003e\n\u003cp data-start=\"940\" data-end=\"1019\"\u003eCupro-nickel heat exchanger for superior durability in harsh water conditions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1020\" data-end=\"1079\"\u003e\n\u003cp data-start=\"1022\" data-end=\"1079\"\u003eRapid heating capability for quick temperature recovery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1080\" data-end=\"1159\"\u003e\n\u003cp data-start=\"1082\" data-end=\"1159\"\u003eCompatible with Hayward automation systems for remote operation and control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1160\" data-end=\"1224\"\u003e\n\u003cp data-start=\"1162\" data-end=\"1224\"\u003eDigital LED control panel for precise temperature adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1225\" data-end=\"1301\"\u003e\n\u003cp data-start=\"1227\" data-end=\"1301\"\u003ePolymer header and bypass valve design for enhanced hydraulic efficiency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1302\" data-end=\"1358\"\u003e\n\u003cp data-start=\"1304\" data-end=\"1358\"\u003eSuitable for coastal and saltwater pool applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1359\" data-end=\"1414\"\u003e\n\u003cp data-start=\"1361\" data-end=\"1414\"\u003eQuiet operation for an improved backyard experience\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1416\" data-end=\"1419\"\u003e\n\u003ch3 data-start=\"1421\" data-end=\"1447\"\u003e\u003cstrong data-start=\"1425\" data-end=\"1445\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1448\" data-end=\"2200\"\u003eThe Hayward W3H400FDP Universal H-Series Propane Gas Pool Heater is engineered for high-capacity heating performance and long-term reliability. With a 400,000 BTU output, it quickly raises and maintains water temperature, extending your swimming season with comfort and ease. Its low NOx design ensures compliance with stringent environmental regulations, while the cupro-nickel heat exchanger provides outstanding corrosion resistance in demanding conditions. The advanced polymer header and bypass valve optimize water flow, improving energy efficiency and reducing pump run time. Featuring user-friendly digital controls and compatibility with Hayward automation systems, this heater offers powerful, eco-friendly heating for large pools and spas.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50815350702392,"sku":"W3H400FDP","price":5099.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/2025_Universal_H_Series_Heater_W3H400FDP_Amazon_Assets_Carousel_02_939e.png?v=1777767668"},{"product_id":"haywardheatproingroundheatpump90000btussquareplatformw3hp21004thppw3hp21004t","title":"Hayward | W3HP21004T | HeatPro In-Ground Pool Heat Pump – 90,000 BTU, Square Platform","description":"\u003c!--split--\u003e\n\u003cp data-start=\"286\" data-end=\"728\"\u003e\u003cstrong data-start=\"286\" data-end=\"356\"\u003eThe Hayward W3HP21004T HeatPro 90,000 BTU In-Ground Pool Heat Pump\u003c\/strong\u003e is a high-efficiency heating solution designed to extend your swimming season while minimizing energy costs. Built with a corrosion-resistant titanium heat exchanger and an ultra-gold evaporator coil, it delivers reliable performance and long-lasting durability in all climates. Its compact square platform design makes installation easy, even in tight equipment areas.\u003c\/p\u003e\n\u003chr data-start=\"730\" data-end=\"733\"\u003e\n\u003ch3 data-start=\"735\" data-end=\"757\"\u003e\u003cstrong data-start=\"739\" data-end=\"755\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"759\" data-end=\"1424\"\u003e\n\u003cli data-start=\"759\" data-end=\"810\"\u003e\n\u003cp data-start=\"761\" data-end=\"810\"\u003e90,000 BTU heating capacity for in-ground pools\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"811\" data-end=\"878\"\u003e\n\u003cp data-start=\"813\" data-end=\"878\"\u003eHigh-efficiency heat pump technology reduces energy consumption\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"879\" data-end=\"950\"\u003e\n\u003cp data-start=\"881\" data-end=\"950\"\u003eCorrosion-resistant titanium heat exchanger for superior durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"951\" data-end=\"1024\"\u003e\n\u003cp data-start=\"953\" data-end=\"1024\"\u003eUltra-gold evaporator coil designed to withstand coastal environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1025\" data-end=\"1097\"\u003e\n\u003cp data-start=\"1027\" data-end=\"1097\"\u003eCompact square platform design for easy installation in small spaces\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1098\" data-end=\"1162\"\u003e\n\u003cp data-start=\"1100\" data-end=\"1162\"\u003eQuiet operation with low sound fan and compressor technology\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1163\" data-end=\"1223\"\u003e\n\u003cp data-start=\"1165\" data-end=\"1223\"\u003eDigital control panel for precise temperature adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1224\" data-end=\"1293\"\u003e\n\u003cp data-start=\"1226\" data-end=\"1293\"\u003eWeather-resistant cabinet protects internal components year-round\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1294\" data-end=\"1358\"\u003e\n\u003cp data-start=\"1296\" data-end=\"1358\"\u003eIdeal for extending the swimming season in residential pools\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1359\" data-end=\"1424\"\u003e\n\u003cp data-start=\"1361\" data-end=\"1424\"\u003eCompatible with Hayward automation systems for remote control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1426\" data-end=\"1429\"\u003e\n\u003ch3 data-start=\"1431\" data-end=\"1457\"\u003e\u003cstrong data-start=\"1435\" data-end=\"1455\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1458\" data-end=\"2179\"\u003eThe Hayward W3HP21004T HeatPro In-Ground Pool Heat Pump offers efficient, dependable heating for pools of various sizes. With a 90,000 BTU output, it quickly and efficiently warms your pool water while using significantly less energy than gas heaters. The titanium heat exchanger and ultra-gold evaporator coil provide excellent resistance to corrosion, making it ideal for both standard and coastal installations. The compact square design saves space, while the quiet operation enhances backyard comfort. Featuring an easy-to-use digital control panel and compatibility with Hayward automation systems, the HeatPro is the perfect blend of performance, durability, and energy efficiency for extending your pool season.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50815351128376,"sku":"W3HP21004T","price":5699.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HPPW3HP21004T_0_3b24df7f-fd03-4acb-a04d-5f937ceb8a3c.jpg?v=1753092019"},{"product_id":"haywardheatpro140kheatonlyreplacesw3hp21404thppw3hp21405t","title":"Hayward | W3HP21404T | HeatPro In Ground Heat Pump, 140,000 BTUs, Square Platform","description":"\u003cp data-start=\"268\" data-end=\"723\"\u003e\u003cstrong data-start=\"268\" data-end=\"339\"\u003eThe Hayward W3HP21404T HeatPro 140,000 BTU In-Ground Pool Heat Pump\u003c\/strong\u003e is a high-capacity, energy-efficient heating solution designed for large residential pools. Equipped with a corrosion-resistant titanium heat exchanger and ultra-gold evaporator coil, it delivers reliable, long-lasting performance in a wide range of climates, including coastal areas. Its compact square platform design allows for easy installation, even in tight equipment spaces.\u003c\/p\u003e\n\u003chr data-start=\"725\" data-end=\"728\"\u003e\n\u003ch3 data-start=\"730\" data-end=\"752\"\u003e\u003cstrong data-start=\"734\" data-end=\"750\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"754\" data-end=\"1469\"\u003e\n\u003cli data-start=\"754\" data-end=\"812\"\u003e\n\u003cp data-start=\"756\" data-end=\"812\"\u003e140,000 BTU heating capacity for large in-ground pools\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"813\" data-end=\"880\"\u003e\n\u003cp data-start=\"815\" data-end=\"880\"\u003eEnergy-efficient heat pump technology reduces operational costs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"881\" data-end=\"956\"\u003e\n\u003cp data-start=\"883\" data-end=\"956\"\u003eTitanium heat exchanger for maximum corrosion resistance and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"957\" data-end=\"1028\"\u003e\n\u003cp data-start=\"959\" data-end=\"1028\"\u003eUltra-gold evaporator coil ideal for coastal and humid environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1029\" data-end=\"1101\"\u003e\n\u003cp data-start=\"1031\" data-end=\"1101\"\u003eCompact square platform design for easier placement and installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1102\" data-end=\"1166\"\u003e\n\u003cp data-start=\"1104\" data-end=\"1166\"\u003eQuiet operation with low-sound fan and compressor technology\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1167\" data-end=\"1237\"\u003e\n\u003cp data-start=\"1169\" data-end=\"1237\"\u003eDigital control panel for precise and easy temperature adjustments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1238\" data-end=\"1307\"\u003e\n\u003cp data-start=\"1240\" data-end=\"1307\"\u003eWeather-resistant cabinet protects internal components year-round\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1308\" data-end=\"1388\"\u003e\n\u003cp data-start=\"1310\" data-end=\"1388\"\u003eCompatible with Hayward automation systems for remote control and monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1389\" data-end=\"1469\"\u003e\n\u003cp data-start=\"1391\" data-end=\"1469\"\u003eExtends the swimming season while maintaining comfortable water temperatures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1471\" data-end=\"1474\"\u003e\n\u003ch3 data-start=\"1476\" data-end=\"1502\"\u003e\u003cstrong data-start=\"1480\" data-end=\"1500\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1503\" data-end=\"2207\"\u003eThe Hayward W3HP21404T HeatPro In-Ground Pool Heat Pump offers exceptional heating power and efficiency for large pools, with a 140,000 BTU capacity to quickly achieve and maintain desired water temperatures. Its titanium heat exchanger ensures superior corrosion resistance, while the ultra-gold evaporator coil enhances durability in challenging climates. The space-saving square platform design makes installation straightforward, and the quiet operation ensures a comfortable backyard environment. With intuitive digital controls and compatibility with Hayward automation systems, this HeatPro model delivers high-performance heating with dependable, energy-efficient operation season after season.\u003c\/p\u003e\n\u003c!--split--\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50815351259448,"sku":"W3HP21405T","price":6999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Heatpro_577f7ddb-2e71-4b5f-b7dc-5640e8d2b108.png?v=1777922632"},{"product_id":"haywardheatproigheatpump100000btusroundplatformw3hp31005thppw3hp31005t","title":"Hayward | W3HP31005T | HeatPro In-Ground Pool Heat Pump – 100,000 BTU, Round Platform","description":"\u003c!--split--\u003e\n\u003cp data-start=\"264\" data-end=\"712\"\u003e\u003cstrong data-start=\"264\" data-end=\"335\"\u003eThe Hayward W3HP31005T HeatPro 100,000 BTU In-Ground Pool Heat Pump\u003c\/strong\u003e provides efficient, reliable heating to extend your swimming season while keeping energy costs low. Featuring a corrosion-resistant titanium heat exchanger and ultra-gold evaporator coil, it delivers exceptional durability and performance in a variety of climates. Its round platform design offers a classic footprint for straightforward installation on most equipment pads.\u003c\/p\u003e\n\u003chr data-start=\"714\" data-end=\"717\"\u003e\n\u003ch3 data-start=\"719\" data-end=\"741\"\u003e\u003cstrong data-start=\"723\" data-end=\"739\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"743\" data-end=\"1507\"\u003e\n\u003cli data-start=\"743\" data-end=\"795\"\u003e\n\u003cp data-start=\"745\" data-end=\"795\"\u003e100,000 BTU heating capacity for in-ground pools\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"796\" data-end=\"895\"\u003e\n\u003cp data-start=\"798\" data-end=\"895\"\u003eHigh-efficiency heat pump technology significantly reduces energy usage compared to gas heaters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"896\" data-end=\"978\"\u003e\n\u003cp data-start=\"898\" data-end=\"978\"\u003eTitanium heat exchanger for maximum corrosion resistance and long service life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"979\" data-end=\"1076\"\u003e\n\u003cp data-start=\"981\" data-end=\"1076\"\u003eUltra-gold evaporator coil designed for enhanced durability in coastal and humid environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1077\" data-end=\"1139\"\u003e\n\u003cp data-start=\"1079\" data-end=\"1139\"\u003eRound platform design for traditional installation layouts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1140\" data-end=\"1200\"\u003e\n\u003cp data-start=\"1142\" data-end=\"1200\"\u003eQuiet operation with low-sound fan and compressor system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1201\" data-end=\"1271\"\u003e\n\u003cp data-start=\"1203\" data-end=\"1271\"\u003eDigital control panel for easy and precise temperature adjustments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1272\" data-end=\"1341\"\u003e\n\u003cp data-start=\"1274\" data-end=\"1341\"\u003eWeather-resistant cabinet protects internal components year-round\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1342\" data-end=\"1417\"\u003e\n\u003cp data-start=\"1344\" data-end=\"1417\"\u003eCompatible with Hayward automation systems for advanced control options\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1418\" data-end=\"1507\"\u003e\n\u003cp data-start=\"1420\" data-end=\"1507\"\u003eIdeal for extending the swimming season and maintaining consistent water temperatures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1509\" data-end=\"1512\"\u003e\n\u003ch3 data-start=\"1514\" data-end=\"1540\"\u003e\u003cstrong data-start=\"1518\" data-end=\"1538\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1541\" data-end=\"2230\"\u003eThe Hayward W3HP31005T HeatPro In-Ground Pool Heat Pump offers powerful 100,000 BTU heating performance in a durable, energy-efficient package. Designed with a titanium heat exchanger and ultra-gold evaporator coil, it resists corrosion and performs reliably in both standard and coastal environments. The round platform design fits seamlessly into traditional equipment setups, while its quiet operation ensures a comfortable backyard atmosphere. With a user-friendly digital control panel and compatibility with Hayward automation systems, the HeatPro 100,000 BTU heat pump provides consistent, cost-effective heating to extend your swim season and maintain perfect water temperatures.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50815351816504,"sku":"W3HP31005T","price":5799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HPPW3HP31005T_0_42d28473-ce7c-42fc-8a85-870f6b4690dc.png?v=1753092021"},{"product_id":"haywardheatpump50000btusw3hp50ha2hppw3hp50ha2","title":"Hayward | W3HP50HA2 | HeatPro In-Ground Pool Heat Pump – 50,000 BTU, Energy-Efficient Heating","description":"\u003c!--split--\u003e\n\u003cp data-start=\"258\" data-end=\"612\"\u003e\u003cstrong data-start=\"258\" data-end=\"327\"\u003eThe Hayward W3HP50HA2 HeatPro 50,000 BTU In-Ground Pool Heat Pump\u003c\/strong\u003e offers efficient, reliable heating for smaller pools and spas, helping extend your swimming season while keeping operational costs low. Built with a corrosion-resistant titanium heat exchanger and weatherproof exterior, it delivers long-lasting performance in a variety of climates.\u003c\/p\u003e\n\u003chr data-start=\"614\" data-end=\"617\"\u003e\n\u003ch3 data-start=\"619\" data-end=\"641\"\u003e\u003cstrong data-start=\"623\" data-end=\"639\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"643\" data-end=\"1366\"\u003e\n\u003cli data-start=\"643\" data-end=\"709\"\u003e\n\u003cp data-start=\"645\" data-end=\"709\"\u003e50,000 BTU heating capacity for small in-ground pools and spas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"710\" data-end=\"799\"\u003e\n\u003cp data-start=\"712\" data-end=\"799\"\u003eEnergy-efficient heat pump technology reduces operating costs compared to gas heaters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"800\" data-end=\"886\"\u003e\n\u003cp data-start=\"802\" data-end=\"886\"\u003eTitanium heat exchanger for superior corrosion resistance and long-term durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"887\" data-end=\"954\"\u003e\n\u003cp data-start=\"889\" data-end=\"954\"\u003eDurable, weather-resistant cabinet protects internal components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"955\" data-end=\"1018\"\u003e\n\u003cp data-start=\"957\" data-end=\"1018\"\u003eCompact design for installation in smaller equipment spaces\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1019\" data-end=\"1079\"\u003e\n\u003cp data-start=\"1021\" data-end=\"1079\"\u003eQuiet operation with low-sound fan and compressor system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1080\" data-end=\"1150\"\u003e\n\u003cp data-start=\"1082\" data-end=\"1150\"\u003eDigital display for precise temperature control and easy operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1151\" data-end=\"1231\"\u003e\n\u003cp data-start=\"1153\" data-end=\"1231\"\u003eCompatible with Hayward automation systems for remote control and scheduling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1232\" data-end=\"1303\"\u003e\n\u003cp data-start=\"1234\" data-end=\"1303\"\u003eEnvironmentally friendly heating option with low energy consumption\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1304\" data-end=\"1366\"\u003e\n\u003cp data-start=\"1306\" data-end=\"1366\"\u003eDesigned for dependable performance in a range of climates\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1368\" data-end=\"1371\"\u003e\n\u003ch3 data-start=\"1373\" data-end=\"1399\"\u003e\u003cstrong data-start=\"1377\" data-end=\"1397\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1400\" data-end=\"2051\"\u003eThe Hayward W3HP50HA2 HeatPro 50,000 BTU Heat Pump is an ideal heating solution for smaller in-ground pools and spas, combining compact size with efficient operation. Its titanium heat exchanger ensures superior resistance to corrosion, while the quiet-running fan and compressor system maintain a peaceful backyard environment. The weatherproof cabinet protects against outdoor elements, ensuring reliable performance year after year. With its digital temperature control and compatibility with Hayward automation systems, this model offers homeowners an easy-to-use, energy-efficient way to enjoy comfortably warm water throughout the swim season.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":50815351849272,"sku":"W3HP50HA2","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HPPW3HP50HA2_0_da41f6cd-b34f-4bfd-9489-d300cf6d7f87.jpg?v=1753092020"},{"product_id":"hayward-h250fdnasme-universal-h-series-asme-250-000-btu-natural-gas-low-nox","title":"Hayward 250,000 BTU – Natural Gas, Low NOx, Universal H-Series ASME","description":"\u003cp data-start=\"112\" data-end=\"769\"\u003eThe Hayward H250FDNASME Universal H-Series ASME Heater is a commercial-grade, 250,000 BTU natural gas unit engineered for heavy-duty performance, durability, and energy efficiency. Designed and certified specifically for commercial aquatic facilities, this Low NOx heater delivers superior hydraulics, rapid heat-up times, and dependable operation in demanding environments. Built with high-end materials including a Cupro-Nickel Finn Plate™ heat exchanger and bronze header, the H-Series ASME heater provides long-lasting protection, ease of installation, and outstanding heating performance for new or existing commercial pool systems.\u003c\/p\u003e\n\u003chr data-start=\"771\" data-end=\"774\"\u003e\n\u003cp data-start=\"776\" data-end=\"794\"\u003e\u003cstrong data-start=\"776\" data-end=\"792\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"795\" data-end=\"2269\"\u003e\n\u003cli data-start=\"795\" data-end=\"974\"\u003e\n\u003cp data-start=\"797\" data-end=\"974\"\u003eFeatures a patented Cupro-Nickel Finn Plate heat exchanger with a heavy-duty bronze header, delivering superior corrosion resistance and exceptional heat transfer efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"975\" data-end=\"1133\"\u003e\n\u003cp data-start=\"977\" data-end=\"1133\"\u003eLow NOx compliant burner system provides environmentally friendly operation while maintaining fast heat-up performance and consistent temperature control.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1134\" data-end=\"1290\"\u003e\n\u003cp data-start=\"1136\" data-end=\"1290\"\u003eCertified for commercial use under ASME requirements and includes an ASME pressure relief valve as standard for enhanced facility safety and compliance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1291\" data-end=\"1446\"\u003e\n\u003cp data-start=\"1293\" data-end=\"1446\"\u003eFlexible installation with independent left or right-side electric, water, and gas connections, simplifying integration into existing mechanical rooms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1447\" data-end=\"1572\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1572\"\u003eEquipped with large 2\" x 2½\" CPVC flanged connections to support high-flow commercial hydraulics and reduce backpressure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1573\" data-end=\"1716\"\u003e\n\u003cp data-start=\"1575\" data-end=\"1716\"\u003eElectronic lock-out feature protects configuration settings from unauthorized changes, improving operational security in public facilities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1717\" data-end=\"1854\"\u003e\n\u003cp data-start=\"1719\" data-end=\"1854\"\u003eDesigned for easy serviceability with single front-panel access and straightforward gas valve adjustments to reduce maintenance time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1855\" data-end=\"1987\"\u003e\n\u003cp data-start=\"1857\" data-end=\"1987\"\u003eDual-voltage ready with simple conversion and fuse-protected circuit boards to accommodate diverse commercial electrical setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1988\" data-end=\"2161\"\u003e\n\u003cp data-start=\"1990\" data-end=\"2161\"\u003ePart of a full lineup offering 250k, 400k, and 500k BTU natural gas or propane models, with 500k BTU systems capable of delivering 1 million BTUs in a compact footprint.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2162\" data-end=\"2269\"\u003e\n\u003cp data-start=\"2164\" data-end=\"2269\"\u003eOptional Texas Heater Kits available for specialized regional compliance and installation requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2271\" data-end=\"2274\"\u003e\n\u003cp data-start=\"2276\" data-end=\"2818\"\u003e\u003cstrong data-start=\"2276\" data-end=\"2296\"\u003eProduct Overview\u003c\/strong\u003e\u003cbr data-start=\"2296\" data-end=\"2299\"\u003eThe Hayward Universal H-Series ASME H250FDNASME Heater is engineered to meet the rigorous demands of commercial pools, spas, fitness centers, hotels, and aquatic facilities. Its patented Cupro-Nickel Finn Plate heat exchanger offers exceptional durability and thermal efficiency, outperforming standard heat exchangers in harsh, chemically intensive water environments. Designed with flexible plumbing and gas connection options, the heater integrates seamlessly into both new construction and retrofit applications.\u003c\/p\u003e\n\u003cp data-start=\"2820\" data-end=\"3409\"\u003eThe advanced Low NOx burner technology ensures environmentally responsible performance without sacrificing heating power, allowing the unit to quickly raise water temperatures even in high-capacity systems. Service professionals benefit from its intuitive design, front-panel access, and protected electronics, making routine maintenance fast and efficient. Supported by Hayward’s reputation for reliability and innovation, the H250FDNASME offers a powerful, long-lasting heating solution that delivers energy efficiency, durability, and commercial-grade performance season after season.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":51354308411704,"sku":"H250FDNASME","price":3999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/IMG_1675_clipped_CMYK_copy_f4a0.webp?v=1777923565"},{"product_id":"hayward-h250fdpasme-universal-h-series-asme-250-000-btu-propane-gas-low-nox","title":"Hayward 250,000 BTU - Propane Gas, Low NOx,  | H250FDPASME | Universal H-Series ASME","description":"\u003cp data-start=\"112\" data-end=\"775\"\u003eThe Hayward H250FDPASME Universal H-Series ASME Heater is a commercial-grade 250,000 BTU propane gas unit designed for exceptional durability, efficiency, and performance. Built specifically for commercial aquatic facilities, this Low NOx certified heater combines high-end construction materials with industry-leading hydraulics to deliver reliable, energy-efficient heating in demanding environments. Featuring a Cupro-Nickel Finn Plate™ heat exchanger, bronze header, and flexible installation options, the H-Series ASME heater is engineered for long-lasting commercial operation and seamless integration into both new and existing systems.\u003c\/p\u003e\n\u003chr data-start=\"777\" data-end=\"780\"\u003e\n\u003cp data-start=\"782\" data-end=\"800\"\u003e\u003cstrong data-start=\"782\" data-end=\"798\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"801\" data-end=\"2209\"\u003e\n\u003cli data-start=\"801\" data-end=\"975\"\u003e\n\u003cp data-start=\"803\" data-end=\"975\"\u003eEquipped with a patented Cupro-Nickel Finn Plate™ heat exchanger and bronze header for superior corrosion resistance, heat transfer efficiency, and extended service life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"976\" data-end=\"1120\"\u003e\n\u003cp data-start=\"978\" data-end=\"1120\"\u003eLow NOx burner design reduces emissions while maintaining strong heating performance and rapid temperature rise for commercial applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1121\" data-end=\"1254\"\u003e\n\u003cp data-start=\"1123\" data-end=\"1254\"\u003eASME certified and includes a factory-installed ASME pressure relief valve to meet commercial safety and compliance requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1255\" data-end=\"1411\"\u003e\n\u003cp data-start=\"1257\" data-end=\"1411\"\u003eFlexible installation with independent left or right-side electrical, plumbing, and gas connection capability, ideal for diverse equipment room layouts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1412\" data-end=\"1533\"\u003e\n\u003cp data-start=\"1414\" data-end=\"1533\"\u003eFeatures 2\" x 2½\" CPVC flanged connections to support high-flow commercial hydraulics and reduce system backpressure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1534\" data-end=\"1691\"\u003e\n\u003cp data-start=\"1536\" data-end=\"1691\"\u003eElectronic lock-out feature prevents unauthorized changes to configuration settings, enhancing operational security in public or high-traffic facilities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1692\" data-end=\"1850\"\u003e\n\u003cp data-start=\"1694\" data-end=\"1850\"\u003eSimplified servicing with single front-panel access, easy gas valve adjustment mechanisms, and fuse-protected circuit boards for quick voltage conversion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1851\" data-end=\"1990\"\u003e\n\u003cp data-start=\"1853\" data-end=\"1990\"\u003eCompatible with additional models in the Universal H-Series lineup, including 250k, 400k, and 500k BTU propane or natural gas versions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1991\" data-end=\"2087\"\u003e\n\u003cp data-start=\"1993\" data-end=\"2087\"\u003eOptional Texas Heater Kits available to meet specialized regional installation requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2088\" data-end=\"2209\"\u003e\n\u003cp data-start=\"2090\" data-end=\"2209\"\u003eCommercial-grade construction ensures year-round reliability, long-term efficiency, and reduced maintenance downtime.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2211\" data-end=\"2214\"\u003e\n\u003cp data-start=\"2216\" data-end=\"2824\"\u003e\u003cstrong data-start=\"2216\" data-end=\"2236\"\u003eProduct Overview\u003c\/strong\u003e\u003cbr data-start=\"2236\" data-end=\"2239\"\u003eThe Hayward H250FDPASME Universal H-Series ASME Heater is engineered to deliver dependable, energy-efficient performance for commercial pools, spas, and aquatic facilities using propane gas. Designed with a Cupro-Nickel Finn Plate™ heat exchanger and bronze header, it withstands harsh commercial water chemistry and demanding operational conditions while delivering superior heating efficiency. Its flexible left-or-right connection options, high-flow CPVC flanges, and easy-access front panel make installation and maintenance straightforward for technicians and facility managers.\u003c\/p\u003e\n\u003cp data-start=\"2826\" data-end=\"3413\"\u003eWith its Low NOx emissions profile, the heater supports environmentally responsible operation without compromising heating speed or performance. The system’s robust commercial-grade construction and advanced safety features—such as the electronic lock-out and ASME pressure relief valve—ensure reliable operation across seasons. Whether used in new builds or retrofit applications, the H250FDPASME provides consistent, fast, and efficient heating, making it a trusted solution for commercial facilities seeking durability, safety, and long-term value from their pool heating equipment.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":51354311950648,"sku":"H250FDPASME","price":4299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/IMG_1675_clipped_CMYK_copy_f4a0.webp?v=1777923565"},{"product_id":"hayward-h400fdpasme-universal-h-series-asme-400-000-btu-propane-gas-low-nox","title":"Hayward 400,000 BTU - Propane Gas, Low NOx, | H400FDPASME | Universal H-Series ASME","description":"\u003cp data-start=\"112\" data-end=\"757\"\u003eThe Hayward H400FDPASME Universal H-Series ASME Heater is a 400,000 BTU commercial-grade propane gas unit engineered for superior performance, durability, and energy efficiency in demanding aquatic environments. Certified for commercial use, this Low NOx heater combines industry-leading hydraulics, advanced construction materials, and reliable operation to deliver fast, consistent heating for pools and spas. Featuring a Cupro-Nickel Finn Plate™ heat exchanger with a bronze header and flexible plumbing and electrical connections, the H-Series ASME heater is ideal for both new installations and equipment room retrofits.\u003c\/p\u003e\n\u003chr data-start=\"759\" data-end=\"762\"\u003e\n\u003cp data-start=\"764\" data-end=\"782\"\u003e\u003cstrong data-start=\"764\" data-end=\"780\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"783\" data-end=\"2168\"\u003e\n\u003cli data-start=\"783\" data-end=\"947\"\u003e\n\u003cp data-start=\"785\" data-end=\"947\"\u003ePatented Cupro-Nickel Finn Plate™ heat exchanger with a heavy-duty bronze header provides exceptional corrosion resistance and long-lasting thermal performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"948\" data-end=\"1090\"\u003e\n\u003cp data-start=\"950\" data-end=\"1090\"\u003eLow NOx burner system supports environmentally friendly operation while delivering rapid and efficient heat-up times for commercial pools.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1091\" data-end=\"1231\"\u003e\n\u003cp data-start=\"1093\" data-end=\"1231\"\u003eASME certified with a factory-installed ASME pressure relief valve, ensuring compliance with commercial safety and regulatory standards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1232\" data-end=\"1379\"\u003e\n\u003cp data-start=\"1234\" data-end=\"1379\"\u003eIndependent left or right-side connections for electrical, water, and gas lines simplify installation and maximize mechanical room flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1380\" data-end=\"1518\"\u003e\n\u003cp data-start=\"1382\" data-end=\"1518\"\u003eEquipped with large 2\" x 2½\" CPVC flanged connections designed to accommodate high-flow commercial hydraulics with minimal resistance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1519\" data-end=\"1665\"\u003e\n\u003cp data-start=\"1521\" data-end=\"1665\"\u003eElectronic lock-out protects configuration settings from unauthorized access, improving operational security in public and managed facilities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1666\" data-end=\"1819\"\u003e\n\u003cp data-start=\"1668\" data-end=\"1819\"\u003eSimplified service with single front-panel access, easy gas valve adjustment, and fuse-protected circuit boards that support dual-voltage conversion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1820\" data-end=\"1944\"\u003e\n\u003cp data-start=\"1822\" data-end=\"1944\"\u003eCompatible with additional H-Series commercial models in 250k, 400k, and 500k BTU propane or natural gas configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1945\" data-end=\"2033\"\u003e\n\u003cp data-start=\"1947\" data-end=\"2033\"\u003eOptional Texas Heater Kits available for regional compliance in specialized markets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2034\" data-end=\"2168\"\u003e\n\u003cp data-start=\"2036\" data-end=\"2168\"\u003eCommercial-grade construction ensures dependable, high-performance heating that stands up to heavy use and harsh water conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2170\" data-end=\"2173\"\u003e\n\u003cp data-start=\"2175\" data-end=\"2791\"\u003e\u003cstrong data-start=\"2175\" data-end=\"2195\"\u003eProduct Overview\u003c\/strong\u003e\u003cbr data-start=\"2195\" data-end=\"2198\"\u003eThe Hayward H400FDPASME Universal H-Series ASME Heater delivers powerful, reliable heating performance for commercial pools, spas, hotels, aquatic centers, and high-end facilities using propane gas. Engineered around a robust Cupro-Nickel Finn Plate™ heat exchanger, the unit provides superior resistance to corrosion and chemical wear—making it ideal for demanding commercial water conditions. Its flexible plumbing and gas connection options allow seamless integration into existing equipment rooms, while the Low NOx burner minimizes environmental impact without compromising heat output.\u003c\/p\u003e\n\u003cp data-start=\"2793\" data-end=\"3310\"\u003eService and maintenance are simplified through front-panel access, intuitive adjustments, and protected electronics, giving technicians a user-friendly platform that minimizes downtime. With its strong BTU output and advanced hydraulics, the H400FDPASME provides efficient, fast heating for large-volume applications. Built for long-term reliability, safety, and energy efficiency, it stands as a top choice for facilities seeking a proven, commercial-grade propane heater with premium construction and performance.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":51354330464568,"sku":"H400FDPASME","price":4899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/IMG_1582_clipped_02_Commercial_Heater_copy_292d.webp?v=1777923571"},{"product_id":"hayward-h500fdnasme-universal-h-series-asme-500-000-btu-natural-gas-low-nox","title":"Hayward  500,000 BTU - Natural Gas, Low NOx, Universal H-Series ASME","description":"\u003cp data-start=\"112\" data-end=\"891\"\u003eThe Hayward H500FDNASME Universal H-Series ASME Heater is a high-capacity 500,000 BTU natural gas unit designed and certified specifically for commercial aquatic facilities. As the flagship of the Universal H-Series commercial lineup, this heater delivers powerful, energy-efficient performance, industry-leading hydraulics, and exceptional durability. Engineered with a patented Cupro-Nickel Finn Plate™ heat exchanger and bronze header, the H500FDNASME offers superior resistance to corrosion and extreme water conditions. With Low NOx emissions, flexible installation options, and a rugged commercial-grade design, it is ideal for resorts, aquatic centers, fitness clubs, hotels, and large commercial pool applications requiring rapid and reliable heating.\u003c\/p\u003e\n\u003chr data-start=\"893\" data-end=\"896\"\u003e\n\u003cp data-start=\"898\" data-end=\"916\"\u003e\u003cstrong data-start=\"898\" data-end=\"914\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"917\" data-end=\"2288\"\u003e\n\u003cli data-start=\"917\" data-end=\"1082\"\u003e\n\u003cp data-start=\"919\" data-end=\"1082\"\u003e500,000 BTU output provides extremely fast heating performance, with the option of combining two units to achieve 1,000,000 BTUs in minimal equipment room space.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1083\" data-end=\"1236\"\u003e\n\u003cp data-start=\"1085\" data-end=\"1236\"\u003ePatented Cupro-Nickel Finn Plate™ heat exchanger with a heavy-duty bronze header delivers unmatched corrosion resistance and high thermal efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1237\" data-end=\"1383\"\u003e\n\u003cp data-start=\"1239\" data-end=\"1383\"\u003eCertified for commercial use under ASME standards and includes an ASME pressure relief valve as standard for regulatory compliance and safety.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1384\" data-end=\"1516\"\u003e\n\u003cp data-start=\"1386\" data-end=\"1516\"\u003eLow NOx burner technology offers environmentally friendly operation while maintaining optimal heat output and stable combustion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1517\" data-end=\"1661\"\u003e\n\u003cp data-start=\"1519\" data-end=\"1661\"\u003eIndependent left or right-side electrical, plumbing, and gas connection options simplify installation in tight or complex mechanical spaces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1662\" data-end=\"1784\"\u003e\n\u003cp data-start=\"1664\" data-end=\"1784\"\u003eEquipped with 2” x 2½” CPVC flanged connections designed for high-flow commercial hydraulics and reduced backpressure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1785\" data-end=\"1913\"\u003e\n\u003cp data-start=\"1787\" data-end=\"1913\"\u003eElectronic lock-out feature protects system configuration settings from unauthorized adjustment—ideal for public facilities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1914\" data-end=\"2059\"\u003e\n\u003cp data-start=\"1916\" data-end=\"2059\"\u003eSimplified service access via single front panel, easy gas valve adjustments, and dual-voltage capability with fuse-protected circuit boards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2060\" data-end=\"2192\"\u003e\n\u003cp data-start=\"2062\" data-end=\"2192\"\u003eCompatible with the Universal ASME H-Series commercial lineup, including 250k, 400k, and 500k BTU natural gas or propane models.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2193\" data-end=\"2288\"\u003e\n\u003cp data-start=\"2195\" data-end=\"2288\"\u003eOptional Texas Heater Kits available for region-specific compliance and installation needs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2290\" data-end=\"2293\"\u003e\n\u003cp data-start=\"2295\" data-end=\"2845\"\u003e\u003cstrong data-start=\"2295\" data-end=\"2315\"\u003eProduct Overview\u003c\/strong\u003e\u003cbr data-start=\"2315\" data-end=\"2318\"\u003eThe Hayward H500FDNASME Universal H-Series ASME Heater is engineered to meet the heating demands of large commercial pools and spas, providing rapid heat-up capability with its powerful 500,000 BTU output. Its robust construction—featuring a Cupro-Nickel Finn Plate™ heat exchanger and bronze header—ensures long-term durability against scale, erosion, and chemically harsh environments commonly found in commercial systems. The heater’s Low NOx design supports cleaner, more sustainable operation without compromising power.\u003c\/p\u003e\n\u003cp data-start=\"2847\" data-end=\"3486\"\u003eTechnicians and facility managers benefit from straightforward installation thanks to flexible connection points, high-flow CPVC flanges, and front-panel access for all major components. Dual-voltage compatibility and protected circuit boards further enhance serviceability and safety. Whether used in a resort, waterpark, athletic center, hotel, or municipal facility, the H500FDNASME delivers outstanding performance, reliability, and energy efficiency. As part of Hayward’s commercial ASME lineup, it stands as a top-tier heating solution built to handle heavy workloads and deliver consistent temperature control season after season.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":51354333937976,"sku":"H500FDNASME","price":5399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/IMG_1582_clipped_02_Commercial_Heater_copy_292d.webp?v=1777923571"},{"product_id":"hayward-h500fdpasme-universal-h-series-asme-500-000-btu-propane-gas-low-nox","title":"Hayward 500,000 BTU - Propane Gas, Low NOx,  | H500FDPASME | Universal H-Series ASME","description":"\u003cp data-start=\"112\" data-end=\"829\"\u003eThe Hayward H500FDPASME Universal H-Series ASME Heater is a commercial-grade 500,000 BTU propane gas unit engineered for superior heating performance, energy efficiency, and long-term durability. As the highest-capacity model in the Universal H-Series ASME lineup, this heater is specifically designed and certified for demanding commercial pool and spa environments. With industry-leading hydraulics, Low NOx emissions, and premium construction materials—including a Cupro-Nickel Finn Plate™ heat exchanger and bronze header—the H500FDPASME delivers rapid heat-up times and reliable operation. Flexible installation options allow seamless integration into new builds or existing mechanical rooms.\u003c\/p\u003e\n\u003chr data-start=\"831\" data-end=\"834\"\u003e\n\u003cp data-start=\"836\" data-end=\"854\"\u003e\u003cstrong data-start=\"836\" data-end=\"852\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"855\" data-end=\"2314\"\u003e\n\u003cli data-start=\"855\" data-end=\"1031\"\u003e\n\u003cp data-start=\"857\" data-end=\"1031\"\u003eHigh-capacity 500,000 BTU output delivers extremely fast and efficient heating for large commercial pools, with the ability to pair two units for a combined 1,000,000 BTUs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1032\" data-end=\"1208\"\u003e\n\u003cp data-start=\"1034\" data-end=\"1208\"\u003ePatented Cupro-Nickel Finn Plate™ heat exchanger with bronze header provides exceptional corrosion resistance and superior thermal efficiency in harsh aquatic environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1209\" data-end=\"1345\"\u003e\n\u003cp data-start=\"1211\" data-end=\"1345\"\u003eASME certified for commercial use and includes an ASME pressure relief valve as standard to meet regulatory and safety requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1346\" data-end=\"1471\"\u003e\n\u003cp data-start=\"1348\" data-end=\"1471\"\u003eLow NOx combustion system ensures environmentally responsible performance without sacrificing heating power or stability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1472\" data-end=\"1624\"\u003e\n\u003cp data-start=\"1474\" data-end=\"1624\"\u003eIndependent left or right-side electrical, water, and propane gas connections simplify installation in complex or space-restricted mechanical rooms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1625\" data-end=\"1760\"\u003e\n\u003cp data-start=\"1627\" data-end=\"1760\"\u003e2\" x 2½\" CPVC flanged connections support high-flow commercial hydraulics with reduced backpressure for improved system efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1761\" data-end=\"1911\"\u003e\n\u003cp data-start=\"1763\" data-end=\"1911\"\u003eElectronic lock-out feature prevents unauthorized adjustments to system settings, enhancing operational control and security in public facilities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1912\" data-end=\"2054\"\u003e\n\u003cp data-start=\"1914\" data-end=\"2054\"\u003eEasy serviceability with single front-panel access, straightforward gas valve adjustments, and fuse-protected dual-voltage circuit boards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2055\" data-end=\"2207\"\u003e\n\u003cp data-start=\"2057\" data-end=\"2207\"\u003eCompatible with all Universal H-Series ASME models (250k, 400k, 500k BTU) in natural gas or propane, offering flexibility for expansion or upgrades.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2208\" data-end=\"2314\"\u003e\n\u003cp data-start=\"2210\" data-end=\"2314\"\u003eTexas Heater Kits available to meet specialized installation standards and regional code requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2316\" data-end=\"2319\"\u003e\n\u003cp data-start=\"2321\" data-end=\"2888\"\u003e\u003cstrong data-start=\"2321\" data-end=\"2341\"\u003eProduct Overview\u003c\/strong\u003e\u003cbr data-start=\"2341\" data-end=\"2344\"\u003eThe Hayward H500FDPASME Universal H-Series ASME Heater is built to handle the heavy demands of commercial aquatic facilities, delivering powerful propane-fired heating with outstanding efficiency and durability. Its advanced Cupro-Nickel Finn Plate™ heat exchanger resists chemical corrosion and scaling, ensuring long service life even in aggressive water conditions. The unit’s high BTU output provides rapid temperature recovery for large pools and spas, while its Low NOx burner technology supports cleaner and more sustainable operation.\u003c\/p\u003e\n\u003cp data-start=\"2890\" data-end=\"3493\"\u003eThe heater’s flexible plumbing and electrical connections make it ideal for retrofit or new-construction installations, and its intuitive service access reduces maintenance time. With commercial certification, robust construction, and high-efficiency performance, the H500FDPASME stands out as a premium heating solution for hotels, resorts, aquatic centers, waterparks, and municipal facilities. Whether used as a single powerhouse unit or paired for 1 million BTUs of output, it delivers the reliability, speed, and energy efficiency required in today’s professional-grade pool heating applications.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":51354338033976,"sku":"H500FDPASME","price":5999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/IMG_1582_clipped_02_Commercial_Heater_copy_292d.webp?v=1777923571"},{"product_id":"hayward-w3hp21405t-heatpro-in-ground-heat-pump-square-platform-140-000-btus","title":"Hayward | W3HP21405T | 140,000 BTU  HeatPro In Ground Heat Pump","description":"\u003cp data-start=\"124\" data-end=\"779\"\u003eThe Hayward W3HP21405T HeatPro In-Ground Pool Heat Pump is a high-capacity, energy-efficient heating solution designed to extend swim season and deliver consistent water temperature control for residential pools. Featuring Hayward’s industry-first Microchannel Heat Exchanger technology, this heat pump provides faster heat transfer, improved durability, and long-term efficiency compared to traditional tube-and-fin designs. With a powerful 140,000 BTU heating capacity and a compact square platform footprint, the HeatPro is engineered for reliable performance, quieter operation, and easier installation in modern pool environments.\u003c\/p\u003e\n\u003chr data-start=\"781\" data-end=\"784\"\u003e\n\u003cp data-start=\"786\" data-end=\"1901\"\u003e\u003cstrong data-start=\"786\" data-end=\"802\"\u003eKey Features\u003c\/strong\u003e\u003cbr data-start=\"802\" data-end=\"805\"\u003e• 140,000 BTU heating capacity provides rapid and efficient pool heating for medium to large in-ground residential pools\u003cbr data-start=\"925\" data-end=\"928\"\u003e• Industry-first Microchannel Heat Exchanger technology delivers improved heat transfer, reduced refrigerant volume, and enhanced corrosion resistance\u003cbr data-start=\"1078\" data-end=\"1081\"\u003e• Square platform design optimizes space on the equipment pad while allowing efficient upward airflow\u003cbr data-start=\"1182\" data-end=\"1185\"\u003e• Designed for 230V single-phase electrical operation with optimized power consumption\u003cbr data-start=\"1271\" data-end=\"1274\"\u003e• Titanium heat exchanger offers superior resistance to harsh water chemistry and saltwater environments\u003cbr data-start=\"1378\" data-end=\"1381\" data-is-only-node=\"\"\u003e• Advanced defrost algorithm improves low-ambient heating performance to extend swim season in cooler climates\u003cbr data-start=\"1491\" data-end=\"1494\"\u003e• Quiet scroll compressor technology ensures reliable operation with reduced noise levels\u003cbr data-start=\"1583\" data-end=\"1586\"\u003e• Digital control interface supports precise temperature adjustments and clear system diagnostics\u003cbr data-start=\"1683\" data-end=\"1686\"\u003e• Compatible with Hayward Omni automation systems for remote temperature control and scheduling\u003cbr data-start=\"1781\" data-end=\"1784\"\u003e• Built for outdoor installation with a UV-resistant cabinet designed to withstand long-term environmental exposure\u003c\/p\u003e\n\u003chr data-start=\"1903\" data-end=\"1906\"\u003e\n\u003cp data-start=\"1908\" data-end=\"2479\"\u003e\u003cstrong data-start=\"1908\" data-end=\"1928\"\u003eProduct Overview\u003c\/strong\u003e\u003cbr data-start=\"1928\" data-end=\"1931\"\u003eThe Hayward HeatPro W3HP21405T Heat Pump delivers powerful, efficient pool heating using advanced Microchannel Heat Exchanger technology that sets a new standard for performance and longevity. By reducing internal brazed joints and refrigerant volume, this design improves reliability while maintaining high thermal efficiency across a wide range of operating conditions. The 140,000 BTU output allows the HeatPro to quickly raise and maintain water temperatures, making it ideal for homeowners looking to maximize pool usage throughout the year.\u003c\/p\u003e\n\u003cp data-start=\"2481\" data-end=\"3080\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eEngineered for ease of installation and long-term serviceability, the HeatPro features a compact square footprint, top-discharge airflow, and durable construction suited for demanding outdoor environments. Its titanium heat exchanger ensures compatibility with saltwater pools, while integrated digital controls and automation readiness provide modern convenience and precise temperature management. Designed and built to Hayward’s professional standards, the HeatPro In-Ground Heat Pump offers dependable performance, energy efficiency, and extended swim season comfort for residential pool owners.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69ed3017-cb7c-83e8-99f3-dedd59fc1a7d-21\" data-testid=\"conversation-turn-182\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"2edc0520-a093-488a-adc2-d30e06d1368f\" dir=\"auto\" data-message-model-slug=\"gpt-5-5-thinking\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"294\"\u003e\u003cstrong data-start=\"79\" data-end=\"144\"\u003eQ: What is the Hayward W3HP21405T HeatPro heat pump used for?\u003c\/strong\u003e\u003cbr data-start=\"144\" data-end=\"147\"\u003eA: The Hayward W3HP21405T is a 140,000 BTU in-ground pool heat pump designed to efficiently heat residential pools and help extend the swim season.\u003c\/p\u003e\n\u003chr data-start=\"296\" data-end=\"299\"\u003e\n\u003cp data-start=\"301\" data-end=\"536\"\u003e\u003cstrong data-start=\"301\" data-end=\"369\"\u003eQ: Is the Hayward W3HP21405T a heat-only or heat-and-cool model?\u003c\/strong\u003e\u003cbr data-start=\"369\" data-end=\"372\"\u003eA: This model is designed as a heat pump for pool heating. It is intended for heating pool water, not for cooling unless specified by the exact model configuration.\u003c\/p\u003e\n\u003chr data-start=\"538\" data-end=\"541\"\u003e\n\u003cp data-start=\"543\" data-end=\"756\"\u003e\u003cstrong data-start=\"543\" data-end=\"600\"\u003eQ: What size pool is the Hayward W3HP21405T best for?\u003c\/strong\u003e\u003cbr data-start=\"600\" data-end=\"603\"\u003eA: This 140,000 BTU heat pump is best for medium to large in-ground pools where efficient temperature maintenance and extended swim season are important.\u003c\/p\u003e\n\u003chr data-start=\"758\" data-end=\"761\"\u003e\n\u003cp data-start=\"763\" data-end=\"988\"\u003e\u003cstrong data-start=\"763\" data-end=\"805\"\u003eQ: Is the Hayward W3HP21405T worth it?\u003c\/strong\u003e\u003cbr data-start=\"805\" data-end=\"808\"\u003eA: Yes. It is a strong option for pool owners who want high-capacity electric heating, energy efficiency, quiet operation, and durable construction from Hayward’s HeatPro platform.\u003c\/p\u003e\n\u003chr data-start=\"990\" data-end=\"993\"\u003e\n\u003cp data-start=\"995\" data-end=\"1240\"\u003e\u003cstrong data-start=\"995\" data-end=\"1057\"\u003eQ: What is the benefit of the Microchannel Heat Exchanger?\u003c\/strong\u003e\u003cbr data-start=\"1057\" data-end=\"1060\"\u003eA: The Microchannel Heat Exchanger is designed to improve heat transfer, reduce refrigerant volume, and support long-term efficiency compared to traditional heat exchanger designs.\u003c\/p\u003e\n\u003chr data-start=\"1242\" data-end=\"1245\"\u003e\n\u003cp data-start=\"1247\" data-end=\"1502\"\u003e\u003cstrong data-start=\"1247\" data-end=\"1309\"\u003eQ: Is the Hayward W3HP21405T suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1309\" data-end=\"1312\"\u003eA: Yes. The titanium heat exchanger provides strong resistance to corrosion, making it suitable for saltwater and chemically treated pool systems when water chemistry is properly maintained.\u003c\/p\u003e\n\u003chr data-start=\"1504\" data-end=\"1507\"\u003e\n\u003cp data-start=\"1509\" data-end=\"1703\"\u003e\u003cstrong data-start=\"1509\" data-end=\"1565\"\u003eQ: What voltage does the Hayward W3HP21405T require?\u003c\/strong\u003e\u003cbr data-start=\"1565\" data-end=\"1568\"\u003eA: This heat pump is designed for 230V single-phase electrical operation and should be installed on a properly sized dedicated circuit.\u003c\/p\u003e\n\u003chr data-start=\"1705\" data-end=\"1708\"\u003e\n\u003cp data-start=\"1710\" data-end=\"1935\"\u003e\u003cstrong data-start=\"1710\" data-end=\"1779\"\u003eQ: Does the Hayward W3HP21405T require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1779\" data-end=\"1782\"\u003eA: Yes. Professional installation is recommended to ensure proper electrical wiring, plumbing, water flow, equipment clearance, and code-compliant setup.\u003c\/p\u003e\n\u003chr data-start=\"1937\" data-end=\"1940\"\u003e\n\u003cp data-start=\"1942\" data-end=\"2178\"\u003e\u003cstrong data-start=\"1942\" data-end=\"2005\"\u003eQ: Is the Hayward W3HP21405T better than a gas pool heater?\u003c\/strong\u003e\u003cbr data-start=\"2005\" data-end=\"2008\"\u003eA: It depends on your needs. A heat pump is typically more efficient for maintaining temperature, while a gas heater usually provides faster heat-up in colder conditions.\u003c\/p\u003e\n\u003chr data-start=\"2180\" data-end=\"2183\"\u003e\n\u003cp data-start=\"2185\" data-end=\"2402\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2185\" data-end=\"2253\"\u003eQ: Can the Hayward W3HP21405T work with pool automation systems?\u003c\/strong\u003e\u003cbr data-start=\"2253\" data-end=\"2256\"\u003eA: Yes. This model is compatible with Hayward Omni automation systems, allowing remote temperature control and scheduling when properly connected.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":51655055540536,"sku":"W3HP21405T","price":6999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/2_MCHE_c6ae__01523.jpg?v=1777767261"},{"product_id":"hayward-w3hs135fdn-universal-h-series-above-ground-natural-gas-heater-with-omnix-135k-btu","title":"Hayward 135K BTU Above-Ground Natural Gas Heater with OmniX,  | W3HS135FDN | Universal H-Series","description":"\u003cp data-start=\"163\" data-end=\"590\"\u003eHayward W3HS135FDN is a Universal H-Series above-ground natural gas heater designed for pool and spa heating applications. This 135,000 BTU model features OmniX connectivity for enhanced control, programmability, and diagnostics, along with a cupronickel heat exchanger for durability in demanding water conditions. It is suited for above-ground pool and spa installations requiring dependable gas heat and modern user control.\u003c\/p\u003e\n\u003cp data-start=\"592\" data-end=\"632\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"634\" data-end=\"646\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"648\" data-end=\"1673\"\u003e• Hayward W3HS135FDN is a Universal H-Series above-ground natural gas heater designed for pool and spa heating applications.\u003cbr data-start=\"772\" data-end=\"775\"\u003e• This model is rated at 135,000 BTU for reliable heating performance in compatible above-ground pool and spa systems.\u003cbr data-start=\"893\" data-end=\"896\"\u003e• Integrated OmniX capability supports enhanced programmability, advanced diagnostics, and app-based remote connectivity.\u003cbr data-start=\"1017\" data-end=\"1020\"\u003e• The cupronickel heat exchanger is designed to provide added protection against corrosion and premature wear in harsh water conditions.\u003cbr data-start=\"1156\" data-end=\"1159\"\u003e• Universal Display controls provide a consistent and intuitive user interface across standalone and compatible automation setups.\u003cbr data-start=\"1289\" data-end=\"1292\"\u003e• Front-panel-only service access helps simplify installation, maintenance, and service work without requiring rear access.\u003cbr data-start=\"1415\" data-end=\"1418\"\u003e• The universal junction box supports either left-side or right-side electrical installation for added setup flexibility.\u003cbr data-start=\"1539\" data-end=\"1542\"\u003e• This heater includes a plug-in 120 volt power cord design to support easier electrical installation in compatible applications.\u003c\/p\u003e\n\u003cp data-start=\"1675\" data-end=\"1715\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"1717\" data-end=\"1733\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1735\" data-end=\"2350\"\u003eThe Hayward W3HS135FDN Universal H-Series Above-Ground Natural Gas Heater with OmniX is built for above-ground pool and spa owners who want dependable gas heat with more modern control capability. Rated at 135,000 BTU, this model combines a compact heater platform with Hayward’s Universal Display and integrated OmniX functionality, making it a practical option for installations that need straightforward operation, improved programmability, and better service visibility. Its natural gas configuration makes it suitable for systems already designed around compatible gas supply and heater placement requirements.\u003c\/p\u003e\n\u003cp data-start=\"2352\" data-end=\"2836\"\u003eThis heater is also designed with long-term durability and serviceability in mind. The standard cupronickel heat exchanger helps improve resistance to corrosion and chemical-related wear, while the front-panel-only access design can make maintenance more convenient in tighter equipment spaces. For above-ground pool and spa applications where heating performance, connected control, and easier service access are important priorities, this model provides a strong equipment solution.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69ed3017-cb7c-83e8-99f3-dedd59fc1a7d-20\" data-testid=\"conversation-turn-180\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"396dce20-7cf3-4578-a4e9-6551d0956a53\" dir=\"auto\" data-message-model-slug=\"gpt-5-5-thinking\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"299\"\u003e\u003cstrong data-start=\"79\" data-end=\"152\"\u003eQ: What is the Hayward W3HS135FDN Universal H-Series heater used for?\u003c\/strong\u003e\u003cbr data-start=\"152\" data-end=\"155\"\u003eA: The Hayward W3HS135FDN is a 135,000 BTU natural gas heater designed for above-ground pools and spas that need reliable and efficient heating.\u003c\/p\u003e\n\u003chr data-start=\"301\" data-end=\"304\"\u003e\n\u003cp data-start=\"306\" data-end=\"469\"\u003e\u003cstrong data-start=\"306\" data-end=\"362\"\u003eQ: Is the Hayward W3HS135FDN natural gas or propane?\u003c\/strong\u003e\u003cbr data-start=\"362\" data-end=\"365\"\u003eA: This model is designed for natural gas. Propane versions are available under different model numbers.\u003c\/p\u003e\n\u003chr data-start=\"471\" data-end=\"474\"\u003e\n\u003cp data-start=\"476\" data-end=\"667\"\u003e\u003cstrong data-start=\"476\" data-end=\"533\"\u003eQ: What size pool is the Hayward W3HS135FDN best for?\u003c\/strong\u003e\u003cbr data-start=\"533\" data-end=\"536\"\u003eA: This 135K BTU heater is best for above-ground pools, spas, and smaller residential pool systems that require consistent heating.\u003c\/p\u003e\n\u003chr data-start=\"669\" data-end=\"672\"\u003e\n\u003cp data-start=\"674\" data-end=\"877\"\u003e\u003cstrong data-start=\"674\" data-end=\"716\"\u003eQ: Is the Hayward W3HS135FDN worth it?\u003c\/strong\u003e\u003cbr data-start=\"716\" data-end=\"719\"\u003eA: Yes. It is a strong option for above-ground pool owners who want dependable natural gas heating with OmniX smart control features and durable construction.\u003c\/p\u003e\n\u003chr data-start=\"879\" data-end=\"882\"\u003e\n\u003cp data-start=\"884\" data-end=\"1117\"\u003e\u003cstrong data-start=\"884\" data-end=\"931\"\u003eQ: What is OmniX on the Hayward W3HS135FDN?\u003c\/strong\u003e\u003cbr data-start=\"931\" data-end=\"934\"\u003eA: OmniX is Hayward’s integrated smart control platform that supports advanced programming, diagnostics, and app-based remote connectivity when paired with a compatible OmniX Gateway.\u003c\/p\u003e\n\u003chr data-start=\"1119\" data-end=\"1122\"\u003e\n\u003cp data-start=\"1124\" data-end=\"1315\"\u003e\u003cstrong data-start=\"1124\" data-end=\"1182\"\u003eQ: Can I control the Hayward W3HS135FDN from my phone?\u003c\/strong\u003e\u003cbr data-start=\"1182\" data-end=\"1185\"\u003eA: Yes. With a compatible Hayward OmniX Gateway, the heater can be monitored and controlled remotely through the OmniX mobile app.\u003c\/p\u003e\n\u003chr data-start=\"1317\" data-end=\"1320\"\u003e\n\u003cp data-start=\"1322\" data-end=\"1582\"\u003e\u003cstrong data-start=\"1322\" data-end=\"1384\"\u003eQ: Is the Hayward W3HS135FDN suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1384\" data-end=\"1387\"\u003eA: Yes. The cupronickel heat exchanger provides improved resistance to corrosion, making it suitable for saltwater and chemically treated pool systems when water chemistry is properly maintained.\u003c\/p\u003e\n\u003chr data-start=\"1584\" data-end=\"1587\"\u003e\n\u003cp data-start=\"1589\" data-end=\"1848\"\u003e\u003cstrong data-start=\"1589\" data-end=\"1668\"\u003eQ: Can the Hayward W3HS135FDN replace my existing above-ground pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1668\" data-end=\"1671\"\u003eA: Yes. It can replace many existing above-ground natural gas heaters, but compatibility depends on gas supply, plumbing layout, electrical setup, and installation requirements.\u003c\/p\u003e\n\u003chr data-start=\"1850\" data-end=\"1853\"\u003e\n\u003cp data-start=\"1855\" data-end=\"2107\"\u003e\u003cstrong data-start=\"1855\" data-end=\"1924\"\u003eQ: Does the Hayward W3HS135FDN require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1924\" data-end=\"1927\"\u003eA: Yes. Professional installation is recommended due to natural gas connections, plumbing integration, and safety requirements, even though it includes a plug-in 120V power design.\u003c\/p\u003e\n\u003chr data-start=\"2109\" data-end=\"2112\"\u003e\n\u003cp data-start=\"2114\" data-end=\"2345\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2114\" data-end=\"2192\"\u003eQ: When should I choose the Hayward W3HS135FDN instead of a larger heater?\u003c\/strong\u003e\u003cbr data-start=\"2192\" data-end=\"2195\"\u003eA: Choose this 135K BTU model if you have an above-ground or smaller pool and do not need the higher heating output of larger BTU natural gas heaters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52192682901816,"sku":"W3HS135FDN","price":2699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Universal_H_Series_H135_H150_Left_Hero.png?v=1777768857"},{"product_id":"hayward-w3hs135fdp-universal-h-series-above-ground-liquid-propane-heater-with-omnix-135k-btu","title":"Hayward  135K BTU Above-Ground Liquid Propane Heater with OmniX  | W3HS135FDP | Universal H-Series","description":"\u003cp data-start=\"166\" data-end=\"599\"\u003eHayward W3HS135FDP is a Universal H-Series above-ground liquid propane heater designed for pool and spa heating applications. This 135,000 BTU model features OmniX connectivity for enhanced control, programmability, and diagnostics, along with a cupronickel heat exchanger for durability in demanding water conditions. It is suited for above-ground pool and spa installations requiring dependable LP gas heat and modern user control.\u003c\/p\u003e\n\u003cp data-start=\"601\" data-end=\"641\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"643\" data-end=\"655\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"657\" data-end=\"1685\"\u003e• Hayward W3HS135FDP is a Universal H-Series above-ground liquid propane heater designed for pool and spa heating applications.\u003cbr data-start=\"784\" data-end=\"787\"\u003e• This model is rated at 135,000 BTU for reliable heating performance in compatible above-ground pool and spa systems.\u003cbr data-start=\"905\" data-end=\"908\"\u003e• Integrated OmniX capability supports enhanced programmability, advanced diagnostics, and app-based remote connectivity.\u003cbr data-start=\"1029\" data-end=\"1032\"\u003e• The cupronickel heat exchanger is designed to provide added protection against corrosion and premature wear in harsh water conditions.\u003cbr data-start=\"1168\" data-end=\"1171\"\u003e• Universal Display controls provide a consistent and intuitive user interface across standalone and compatible automation setups.\u003cbr data-start=\"1301\" data-end=\"1304\"\u003e• Front-panel-only service access helps simplify installation, maintenance, and service work without requiring rear access.\u003cbr data-start=\"1427\" data-end=\"1430\"\u003e• The universal junction box supports either left-side or right-side electrical installation for added setup flexibility.\u003cbr data-start=\"1551\" data-end=\"1554\"\u003e• This heater includes a plug-in 120 volt power cord design to support easier electrical installation in compatible applications.\u003c\/p\u003e\n\u003cp data-start=\"1687\" data-end=\"1727\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"1729\" data-end=\"1745\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1747\" data-end=\"2371\"\u003eThe Hayward W3HS135FDP Universal H-Series Above-Ground Liquid Propane Heater with OmniX is built for above-ground pool and spa owners who want dependable gas heat with more modern control capability. Rated at 135,000 BTU, this model combines a compact heater platform with Hayward’s Universal Display and integrated OmniX functionality, making it a practical option for installations that need straightforward operation, improved programmability, and better service visibility. Its liquid propane configuration makes it suitable for systems already designed around compatible LP gas supply and heater placement requirements.\u003c\/p\u003e\n\u003cp data-start=\"2373\" data-end=\"2857\"\u003eThis heater is also designed with long-term durability and serviceability in mind. The standard cupronickel heat exchanger helps improve resistance to corrosion and chemical-related wear, while the front-panel-only access design can make maintenance more convenient in tighter equipment spaces. For above-ground pool and spa applications where heating performance, connected control, and easier service access are important priorities, this model provides a strong equipment solution.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69ed3017-cb7c-83e8-99f3-dedd59fc1a7d-19\" data-testid=\"conversation-turn-178\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"4e203c20-f6ff-4f82-8eff-eb1f1f38d785\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"302\"\u003e\u003cstrong data-start=\"79\" data-end=\"152\"\u003eQ: What is the Hayward W3HS135FDP Universal H-Series heater used for?\u003c\/strong\u003e\u003cbr data-start=\"152\" data-end=\"155\"\u003eA: The Hayward W3HS135FDP is a 135,000 BTU liquid propane heater designed for above-ground pools and spas that need reliable and efficient heating.\u003c\/p\u003e\n\u003chr data-start=\"304\" data-end=\"307\"\u003e\n\u003cp data-start=\"309\" data-end=\"479\"\u003e\u003cstrong data-start=\"309\" data-end=\"365\"\u003eQ: Is the Hayward W3HS135FDP propane or natural gas?\u003c\/strong\u003e\u003cbr data-start=\"365\" data-end=\"368\"\u003eA: This model is designed for liquid propane. Natural gas versions are available under different model numbers.\u003c\/p\u003e\n\u003chr data-start=\"481\" data-end=\"484\"\u003e\n\u003cp data-start=\"486\" data-end=\"677\"\u003e\u003cstrong data-start=\"486\" data-end=\"543\"\u003eQ: What size pool is the Hayward W3HS135FDP best for?\u003c\/strong\u003e\u003cbr data-start=\"543\" data-end=\"546\"\u003eA: This 135K BTU heater is best for above-ground pools, spas, and smaller residential pool systems that require consistent heating.\u003c\/p\u003e\n\u003chr data-start=\"679\" data-end=\"682\"\u003e\n\u003cp data-start=\"684\" data-end=\"883\"\u003e\u003cstrong data-start=\"684\" data-end=\"726\"\u003eQ: Is the Hayward W3HS135FDP worth it?\u003c\/strong\u003e\u003cbr data-start=\"726\" data-end=\"729\"\u003eA: Yes. It is a strong option for above-ground pool owners who want dependable propane heating with OmniX smart control features and durable construction.\u003c\/p\u003e\n\u003chr data-start=\"885\" data-end=\"888\"\u003e\n\u003cp data-start=\"890\" data-end=\"1123\"\u003e\u003cstrong data-start=\"890\" data-end=\"937\"\u003eQ: What is OmniX on the Hayward W3HS135FDP?\u003c\/strong\u003e\u003cbr data-start=\"937\" data-end=\"940\"\u003eA: OmniX is Hayward’s integrated smart control platform that supports advanced programming, diagnostics, and app-based remote connectivity when paired with a compatible OmniX Gateway.\u003c\/p\u003e\n\u003chr data-start=\"1125\" data-end=\"1128\"\u003e\n\u003cp data-start=\"1130\" data-end=\"1321\"\u003e\u003cstrong data-start=\"1130\" data-end=\"1188\"\u003eQ: Can I control the Hayward W3HS135FDP from my phone?\u003c\/strong\u003e\u003cbr data-start=\"1188\" data-end=\"1191\"\u003eA: Yes. With a compatible Hayward OmniX Gateway, the heater can be monitored and controlled remotely through the OmniX mobile app.\u003c\/p\u003e\n\u003chr data-start=\"1323\" data-end=\"1326\"\u003e\n\u003cp data-start=\"1328\" data-end=\"1588\"\u003e\u003cstrong data-start=\"1328\" data-end=\"1390\"\u003eQ: Is the Hayward W3HS135FDP suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1390\" data-end=\"1393\"\u003eA: Yes. The cupronickel heat exchanger provides improved resistance to corrosion, making it suitable for saltwater and chemically treated pool systems when water chemistry is properly maintained.\u003c\/p\u003e\n\u003chr data-start=\"1590\" data-end=\"1593\"\u003e\n\u003cp data-start=\"1595\" data-end=\"1850\"\u003e\u003cstrong data-start=\"1595\" data-end=\"1674\"\u003eQ: Can the Hayward W3HS135FDP replace my existing above-ground pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1674\" data-end=\"1677\"\u003eA: Yes. It can replace many existing above-ground propane heaters, but compatibility depends on gas supply, plumbing layout, electrical setup, and installation requirements.\u003c\/p\u003e\n\u003chr data-start=\"1852\" data-end=\"1855\"\u003e\n\u003cp data-start=\"1857\" data-end=\"2109\"\u003e\u003cstrong data-start=\"1857\" data-end=\"1926\"\u003eQ: Does the Hayward W3HS135FDP require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1926\" data-end=\"1929\"\u003eA: Yes. Professional installation is recommended due to propane gas connections, plumbing integration, and safety requirements, even though it includes a plug-in 120V power design.\u003c\/p\u003e\n\u003chr data-start=\"2111\" data-end=\"2114\"\u003e\n\u003cp data-start=\"2116\" data-end=\"2343\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2116\" data-end=\"2194\"\u003eQ: When should I choose the Hayward W3HS135FDP instead of a larger heater?\u003c\/strong\u003e\u003cbr data-start=\"2194\" data-end=\"2197\"\u003eA: Choose this 135K BTU model if you have an above-ground or smaller pool and do not need the higher heating output of larger BTU propane heaters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52192686768440,"sku":"W3HS135FDP","price":2699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Universal_H_Series_H135_H150_Front_Top.png?v=1777768884"},{"product_id":"hayward-w3hs150fdn-universal-h-series-natural-gas-heater-with-omnix-150k-btu","title":"Hayward 150K BTU Natural Gas Heater with OmniX, Universal H-Series   | W3HS150FDN |","description":"\u003cp data-start=\"150\" data-end=\"573\"\u003eHayward W3HS150FDN is a Universal H-Series natural gas heater designed for pool and spa heating applications. This 150,000 BTU model features OmniX connectivity for enhanced control, programmability, and diagnostics, along with a cupronickel heat exchanger for durability in demanding water conditions. It is suited for pool and spa installations requiring dependable gas heat, efficient operation, and modern user control.\u003c\/p\u003e\n\u003cp data-start=\"575\" data-end=\"615\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"617\" data-end=\"629\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"631\" data-end=\"1652\"\u003e• Hayward W3HS150FDN is a Universal H-Series natural gas heater designed for pool and spa heating applications.\u003cbr data-start=\"742\" data-end=\"745\"\u003e• This model is rated at 150,000 BTU for dependable heating performance in compatible pool and spa systems.\u003cbr data-start=\"852\" data-end=\"855\"\u003e• Integrated OmniX capability supports enhanced programmability, advanced diagnostics, and app-based remote connectivity.\u003cbr data-start=\"976\" data-end=\"979\"\u003e• The cupronickel heat exchanger is designed to provide added protection against corrosion and premature wear in harsh water conditions.\u003cbr data-start=\"1115\" data-end=\"1118\"\u003e• Universal Display controls provide a consistent and intuitive user interface across standalone and compatible automation setups.\u003cbr data-start=\"1248\" data-end=\"1251\"\u003e• Forced-draft combustion and electronic ignition support reliable heater operation in properly installed systems.\u003cbr data-start=\"1365\" data-end=\"1368\"\u003e• The unit is built with front service access to simplify maintenance and service procedures in equipment pad installations.\u003cbr data-start=\"1492\" data-end=\"1495\"\u003e• This heater is intended for pool and spa applications where consistent heat delivery, durable construction, and connected control features are important.\u003c\/p\u003e\n\u003cp data-start=\"1654\" data-end=\"1694\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"1696\" data-end=\"1712\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1714\" data-end=\"2298\"\u003eThe Hayward W3HS150FDN Universal H-Series Natural Gas Heater with OmniX is built for pool and spa owners who want dependable gas heat with modern control capability. Rated at 150,000 BTU, this model combines a compact heater platform with Hayward’s Universal Display and integrated OmniX functionality, making it a practical option for installations that need straightforward operation, improved programmability, and better service visibility. Its natural gas configuration makes it suitable for systems already designed around compatible gas supply and heater placement requirements.\u003c\/p\u003e\n\u003cp data-start=\"2300\" data-end=\"2778\"\u003eThis heater is also designed with long-term durability and serviceability in mind. The standard cupronickel heat exchanger helps improve resistance to corrosion and chemical-related wear, while the front-access design can make maintenance more convenient in equipment areas with limited working space. For pool and spa applications where heating performance, connected control, and easier service access are important priorities, this model provides a strong equipment solution.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69ed3017-cb7c-83e8-99f3-dedd59fc1a7d-18\" data-testid=\"conversation-turn-176\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"3e19af6c-26cb-4834-814e-31b70a40184c\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"326\"\u003e\u003cstrong data-start=\"79\" data-end=\"152\"\u003eQ: What is the Hayward W3HS150FDN Universal H-Series heater used for?\u003c\/strong\u003e\u003cbr data-start=\"152\" data-end=\"155\"\u003eA: The Hayward W3HS150FDN is a 150,000 BTU natural gas pool and spa heater designed for small residential pool and spa systems that require reliable and efficient heating.\u003c\/p\u003e\n\u003chr data-start=\"328\" data-end=\"331\"\u003e\n\u003cp data-start=\"333\" data-end=\"496\"\u003e\u003cstrong data-start=\"333\" data-end=\"389\"\u003eQ: Is the Hayward W3HS150FDN natural gas or propane?\u003c\/strong\u003e\u003cbr data-start=\"389\" data-end=\"392\"\u003eA: This model is designed for natural gas. Propane versions are available under different model numbers.\u003c\/p\u003e\n\u003chr data-start=\"498\" data-end=\"501\"\u003e\n\u003cp data-start=\"503\" data-end=\"699\"\u003e\u003cstrong data-start=\"503\" data-end=\"560\"\u003eQ: What size pool is the Hayward W3HS150FDN best for?\u003c\/strong\u003e\u003cbr data-start=\"560\" data-end=\"563\"\u003eA: This 150K BTU heater is best for small pools, spas, and compact residential pool setups that need consistent temperature maintenance.\u003c\/p\u003e\n\u003chr data-start=\"701\" data-end=\"704\"\u003e\n\u003cp data-start=\"706\" data-end=\"899\"\u003e\u003cstrong data-start=\"706\" data-end=\"748\"\u003eQ: Is the Hayward W3HS150FDN worth it?\u003c\/strong\u003e\u003cbr data-start=\"748\" data-end=\"751\"\u003eA: Yes. It is a dependable option for pool owners who want natural gas heating, cupronickel durability, and OmniX smart control in a compact heater.\u003c\/p\u003e\n\u003chr data-start=\"901\" data-end=\"904\"\u003e\n\u003cp data-start=\"906\" data-end=\"1133\"\u003e\u003cstrong data-start=\"906\" data-end=\"953\"\u003eQ: What is OmniX on the Hayward W3HS150FDN?\u003c\/strong\u003e\u003cbr data-start=\"953\" data-end=\"956\"\u003eA: OmniX is Hayward’s integrated smart control platform that supports advanced programming, diagnostics, and app-based remote access when paired with a compatible OmniX Gateway.\u003c\/p\u003e\n\u003chr data-start=\"1135\" data-end=\"1138\"\u003e\n\u003cp data-start=\"1140\" data-end=\"1331\"\u003e\u003cstrong data-start=\"1140\" data-end=\"1198\"\u003eQ: Can I control the Hayward W3HS150FDN from my phone?\u003c\/strong\u003e\u003cbr data-start=\"1198\" data-end=\"1201\"\u003eA: Yes. With a compatible Hayward OmniX Gateway, the heater can be monitored and controlled remotely through the OmniX mobile app.\u003c\/p\u003e\n\u003chr data-start=\"1333\" data-end=\"1336\"\u003e\n\u003cp data-start=\"1338\" data-end=\"1598\"\u003e\u003cstrong data-start=\"1338\" data-end=\"1400\"\u003eQ: Is the Hayward W3HS150FDN suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1400\" data-end=\"1403\"\u003eA: Yes. The cupronickel heat exchanger provides improved resistance to corrosion, making it suitable for saltwater and chemically treated pool systems when water chemistry is properly maintained.\u003c\/p\u003e\n\u003chr data-start=\"1600\" data-end=\"1603\"\u003e\n\u003cp data-start=\"1605\" data-end=\"1857\"\u003e\u003cstrong data-start=\"1605\" data-end=\"1683\"\u003eQ: Can the Hayward W3HS150FDN replace my existing natural gas pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1683\" data-end=\"1686\"\u003eA: Yes. It can replace many existing natural gas heaters, but compatibility depends on gas supply, plumbing layout, electrical setup, venting, and local code requirements.\u003c\/p\u003e\n\u003chr data-start=\"1859\" data-end=\"1862\"\u003e\n\u003cp data-start=\"1864\" data-end=\"2086\"\u003e\u003cstrong data-start=\"1864\" data-end=\"1933\"\u003eQ: Does the Hayward W3HS150FDN require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1933\" data-end=\"1936\"\u003eA: Yes. Professional installation is recommended due to natural gas sizing, electrical wiring, plumbing integration, venting, and safety requirements.\u003c\/p\u003e\n\u003chr data-start=\"2088\" data-end=\"2091\"\u003e\n\u003cp data-start=\"2093\" data-end=\"2319\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2093\" data-end=\"2171\"\u003eQ: When should I choose the Hayward W3HS150FDN instead of a larger heater?\u003c\/strong\u003e\u003cbr data-start=\"2171\" data-end=\"2174\"\u003eA: Choose this 150K BTU model if you have a smaller pool or spa and do not need the faster heat-up performance of higher BTU natural gas heaters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52192695943480,"sku":"W3HS150FDN","price":3299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Universal_H_Series_H135_H150_Hero.png?v=1777768952"},{"product_id":"hayward-w3hs150fdp-universal-h-series-liquid-propane-heater-with-omnix-150k-btu","title":"Hayward 150K BTU Liquid Propane Heater with OmniX,  Universal H-Series | W3HS150FDP |","description":"\u003cp data-start=\"153\" data-end=\"677\"\u003eHayward W3HS150FDP is a Universal H-Series liquid propane heater designed for pool and spa heating applications. This 150,000 BTU model features OmniX connectivity for app-based control, scheduling, diagnostics, and remote access when used with a compatible gateway. It is built with a standard cupronickel heat exchanger and is suited for installations requiring dependable propane-fired pool and spa heating.\u003c\/p\u003e\n\u003cp data-start=\"679\" data-end=\"719\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"721\" data-end=\"733\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"735\" data-end=\"2217\"\u003e• Hayward W3HS150FDP is a Universal H-Series propane heater designed for pool and spa heating applications with built-in OmniX functionality. \u003cbr data-start=\"952\" data-end=\"955\"\u003e• This model is rated at 150,000 BTU for dependable heating performance in compatible pool and spa systems. \u003cbr data-start=\"1100\" data-end=\"1103\"\u003e• The heater uses a standard cupronickel heat exchanger for improved durability in demanding water conditions. \u003cbr data-start=\"1251\" data-end=\"1254\"\u003e• OmniX capability supports mobile app control, scheduling, diagnostics, and remote connectivity when paired with a Hayward OmniX Gateway. \u003cbr data-start=\"1468\" data-end=\"1471\"\u003e• Universal Display controls provide an integrated interface for standalone operation and compatible remote control configurations. \u003cbr data-start=\"1640\" data-end=\"1643\"\u003e• This heater is configured for forced-draft combustion with hot surface ignition to support consistent heater operation in properly installed systems. \u003cbr data-start=\"1834\" data-end=\"1837\" data-is-only-node=\"\"\u003e• The unit is designed for either 120 or 240 VAC electrical service on 150K models, offering flexible installation options where permitted by code. \u003cbr data-start=\"2024\" data-end=\"2027\"\u003e• Integrated operation modes support standalone control, OmniX app control, 2-wire or 3-wire remote control, and Hayward Omni automation connection.\u003c\/p\u003e\n\u003cp data-start=\"2219\" data-end=\"2259\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"2261\" data-end=\"2277\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2279\" data-end=\"2924\"\u003eThe Hayward W3HS150FDP Universal H-Series Liquid Propane Heater with OmniX is built for pool and spa owners who want dependable propane heat with modern control capability. Rated at 150,000 BTU, this model combines a compact heater platform with Hayward’s Universal Display and OmniX connectivity, allowing the heater to be configured and operated through onboard controls or through the OmniX mobile app. That makes it a practical option for installations where users want better programmability, more convenient control access, and improved diagnostic visibility.\u003c\/p\u003e\n\u003cp data-start=\"2926\" data-end=\"3565\"\u003eThis heater is also designed around long-term durability and installation flexibility. The standard cupronickel heat exchanger helps improve resistance to corrosion-related wear, and the unit supports multiple control methods including standalone operation, remote thermostat control, and Hayward Omni automation integration. For pool and spa applications where reliable heating performance, propane compatibility, and connected control are key priorities, this model offers a strong and serviceable equipment solution.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"299\"\u003e\u003cstrong data-start=\"79\" data-end=\"152\"\u003eQ: What is the Hayward W3HS150FDP Universal H-Series heater used for?\u003c\/strong\u003e\u003cbr data-start=\"152\" data-end=\"155\"\u003eA: The Hayward W3HS150FDP is a 150,000 BTU liquid propane pool and spa heater designed for reliable heating in residential pool and spa systems.\u003c\/p\u003e\n\u003chr data-start=\"301\" data-end=\"304\"\u003e\n\u003cp data-start=\"306\" data-end=\"476\"\u003e\u003cstrong data-start=\"306\" data-end=\"362\"\u003eQ: Is the Hayward W3HS150FDP propane or natural gas?\u003c\/strong\u003e\u003cbr data-start=\"362\" data-end=\"365\"\u003eA: This model is designed for liquid propane. Natural gas versions are available under different model numbers.\u003c\/p\u003e\n\u003chr data-start=\"478\" data-end=\"481\"\u003e\n\u003cp data-start=\"483\" data-end=\"667\"\u003e\u003cstrong data-start=\"483\" data-end=\"540\"\u003eQ: What size pool is the Hayward W3HS150FDP best for?\u003c\/strong\u003e\u003cbr data-start=\"540\" data-end=\"543\"\u003eA: This 150K BTU heater is best for small pools, spas, and compact residential pool systems that require consistent heating.\u003c\/p\u003e\n\u003chr data-start=\"669\" data-end=\"672\"\u003e\n\u003cp data-start=\"674\" data-end=\"866\"\u003e\u003cstrong data-start=\"674\" data-end=\"716\"\u003eQ: Is the Hayward W3HS150FDP worth it?\u003c\/strong\u003e\u003cbr data-start=\"716\" data-end=\"719\"\u003eA: Yes. It is a dependable and efficient option for pool owners who need propane heating, compact installation, and OmniX smart control capability.\u003c\/p\u003e\n\u003chr data-start=\"868\" data-end=\"871\"\u003e\n\u003cp data-start=\"873\" data-end=\"1092\"\u003e\u003cstrong data-start=\"873\" data-end=\"920\"\u003eQ: What is OmniX on the Hayward W3HS150FDP?\u003c\/strong\u003e\u003cbr data-start=\"920\" data-end=\"923\"\u003eA: OmniX is Hayward’s connected control platform that supports app-based control, scheduling, diagnostics, and remote access when paired with a compatible OmniX Gateway.\u003c\/p\u003e\n\u003chr data-start=\"1094\" data-end=\"1097\"\u003e\n\u003cp data-start=\"1099\" data-end=\"1297\"\u003e\u003cstrong data-start=\"1099\" data-end=\"1157\"\u003eQ: Can I control the Hayward W3HS150FDP from my phone?\u003c\/strong\u003e\u003cbr data-start=\"1157\" data-end=\"1160\"\u003eA: Yes. When connected with a compatible Hayward OmniX Gateway, this heater can be monitored and controlled through the OmniX mobile app.\u003c\/p\u003e\n\u003chr data-start=\"1299\" data-end=\"1302\"\u003e\n\u003cp data-start=\"1304\" data-end=\"1564\"\u003e\u003cstrong data-start=\"1304\" data-end=\"1366\"\u003eQ: Is the Hayward W3HS150FDP suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1366\" data-end=\"1369\"\u003eA: Yes. The cupronickel heat exchanger provides improved resistance to corrosion, making it suitable for saltwater and chemically treated pool systems when water chemistry is properly maintained.\u003c\/p\u003e\n\u003chr data-start=\"1566\" data-end=\"1569\"\u003e\n\u003cp data-start=\"1571\" data-end=\"1815\"\u003e\u003cstrong data-start=\"1571\" data-end=\"1645\"\u003eQ: Can the Hayward W3HS150FDP replace my existing propane pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1645\" data-end=\"1648\"\u003eA: Yes. It can replace many existing propane heaters, but compatibility depends on gas supply, plumbing layout, electrical setup, venting, and local code requirements.\u003c\/p\u003e\n\u003chr data-start=\"1817\" data-end=\"1820\"\u003e\n\u003cp data-start=\"1822\" data-end=\"2044\"\u003e\u003cstrong data-start=\"1822\" data-end=\"1891\"\u003eQ: Does the Hayward W3HS150FDP require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1891\" data-end=\"1894\"\u003eA: Yes. Professional installation is recommended due to propane gas sizing, electrical wiring, plumbing integration, venting, and safety requirements.\u003c\/p\u003e\n\u003chr data-start=\"2046\" data-end=\"2049\"\u003e\n\u003cp data-start=\"2051\" data-end=\"2273\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2051\" data-end=\"2129\"\u003eQ: When should I choose the Hayward W3HS150FDP instead of a larger heater?\u003c\/strong\u003e\u003cbr data-start=\"2129\" data-end=\"2132\"\u003eA: Choose this 150K BTU model if you have a smaller pool or spa and do not need the faster heat-up performance of higher BTU propane heaters.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52192917619000,"sku":"W3HS150FDP","price":3299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Universal_H_Series_H135_H150_Left.png?v=1777768865"},{"product_id":"hayward-w3hs200fdn-universal-h-series-natural-gas-heater-with-omnix-200k-btu","title":"Hayward 200K BTU Natural Gas Heater with OmniX,  Universal H-Series | W3HS200FDN |","description":"\u003cp data-start=\"150\" data-end=\"555\"\u003eHayward W3HS200FDN is a Universal H-Series natural gas heater designed for pool and spa heating applications. This 200,000 BTU model features OmniX connectivity for app-based control, scheduling, diagnostics, and remote access when used with a compatible gateway. It is built with a standard cupronickel heat exchanger and is suited for installations requiring dependable natural gas pool and spa heating.\u003c\/p\u003e\n\u003cp data-start=\"557\" data-end=\"597\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"599\" data-end=\"611\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"613\" data-end=\"1715\"\u003e• Hayward W3HS200FDN is a Universal H-Series natural gas heater designed for pool and spa heating applications with built-in OmniX functionality.\u003cbr data-start=\"758\" data-end=\"761\"\u003e• This model is rated at 200,000 BTU for dependable heating performance in compatible pool and spa systems.\u003cbr data-start=\"868\" data-end=\"871\"\u003e• The heater uses a standard cupronickel heat exchanger for improved durability in demanding water conditions.\u003cbr data-start=\"981\" data-end=\"984\"\u003e• OmniX capability supports mobile app control, scheduling, diagnostics, and remote connectivity when paired with a compatible Hayward OmniX Gateway.\u003cbr data-start=\"1133\" data-end=\"1136\"\u003e• Universal Display controls provide an integrated interface for standalone operation and compatible remote control configurations.\u003cbr data-start=\"1267\" data-end=\"1270\"\u003e• This heater uses forced-draft combustion with hot surface ignition to support consistent heater operation in properly installed systems.\u003cbr data-start=\"1408\" data-end=\"1411\"\u003e• The unit is designed for 120 or 240 VAC electrical service on applicable 200K models, offering flexible installation options where permitted by code.\u003cbr data-start=\"1562\" data-end=\"1565\"\u003e• Integrated operation modes support standalone control, OmniX app control, 2-wire or 3-wire remote control, and Hayward Omni automation connection.\u003c\/p\u003e\n\u003cp data-start=\"1717\" data-end=\"1757\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"1759\" data-end=\"1775\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1777\" data-end=\"2335\"\u003eThe Hayward W3HS200FDN Universal H-Series Natural Gas Heater with OmniX is built for pool and spa owners who want dependable gas heat with modern control capability. Rated at 200,000 BTU, this model combines a compact heater platform with Hayward’s Universal Display and OmniX connectivity, allowing the heater to be configured and operated through onboard controls or through the OmniX mobile app. That makes it a practical option for installations where users want better programmability, more convenient control access, and improved diagnostic visibility.\u003c\/p\u003e\n\u003cp data-start=\"2337\" data-end=\"2860\"\u003eThis heater is also designed around long-term durability and installation flexibility. The standard cupronickel heat exchanger helps improve resistance to corrosion-related wear, and the unit supports multiple control methods including standalone operation, remote thermostat control, and Hayward Omni automation integration. For pool and spa applications where reliable heating performance, natural gas compatibility, and connected control are key priorities, this model offers a strong and serviceable equipment solution.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"296\"\u003e\u003cstrong data-start=\"79\" data-end=\"152\"\u003eQ: What is the Hayward W3HS200FDN Universal H-Series heater used for?\u003c\/strong\u003e\u003cbr data-start=\"152\" data-end=\"155\"\u003eA: The Hayward W3HS200FDN is a 200,000 BTU natural gas pool and spa heater designed for reliable heating in residential pool and spa systems.\u003c\/p\u003e\n\u003chr data-start=\"298\" data-end=\"301\"\u003e\n\u003cp data-start=\"303\" data-end=\"466\"\u003e\u003cstrong data-start=\"303\" data-end=\"359\"\u003eQ: Is the Hayward W3HS200FDN natural gas or propane?\u003c\/strong\u003e\u003cbr data-start=\"359\" data-end=\"362\"\u003eA: This model is designed for natural gas. Propane versions are available under different model numbers.\u003c\/p\u003e\n\u003chr data-start=\"468\" data-end=\"471\"\u003e\n\u003cp data-start=\"473\" data-end=\"674\"\u003e\u003cstrong data-start=\"473\" data-end=\"530\"\u003eQ: What size pool is the Hayward W3HS200FDN best for?\u003c\/strong\u003e\u003cbr data-start=\"530\" data-end=\"533\"\u003eA: This 200K BTU heater is best for small to medium-sized pools, spas, and pool\/spa combinations that require consistent heating performance.\u003c\/p\u003e\n\u003chr data-start=\"676\" data-end=\"679\"\u003e\n\u003cp data-start=\"681\" data-end=\"865\"\u003e\u003cstrong data-start=\"681\" data-end=\"723\"\u003eQ: Is the Hayward W3HS200FDN worth it?\u003c\/strong\u003e\u003cbr data-start=\"723\" data-end=\"726\"\u003eA: Yes. It is a dependable option for pool owners who want natural gas heating, cupronickel durability, and OmniX smart control capability.\u003c\/p\u003e\n\u003chr data-start=\"867\" data-end=\"870\"\u003e\n\u003cp data-start=\"872\" data-end=\"1091\"\u003e\u003cstrong data-start=\"872\" data-end=\"919\"\u003eQ: What is OmniX on the Hayward W3HS200FDN?\u003c\/strong\u003e\u003cbr data-start=\"919\" data-end=\"922\"\u003eA: OmniX is Hayward’s connected control platform that supports app-based control, scheduling, diagnostics, and remote access when paired with a compatible OmniX Gateway.\u003c\/p\u003e\n\u003chr data-start=\"1093\" data-end=\"1096\"\u003e\n\u003cp data-start=\"1098\" data-end=\"1296\"\u003e\u003cstrong data-start=\"1098\" data-end=\"1156\"\u003eQ: Can I control the Hayward W3HS200FDN from my phone?\u003c\/strong\u003e\u003cbr data-start=\"1156\" data-end=\"1159\"\u003eA: Yes. When connected with a compatible Hayward OmniX Gateway, this heater can be monitored and controlled through the OmniX mobile app.\u003c\/p\u003e\n\u003chr data-start=\"1298\" data-end=\"1301\"\u003e\n\u003cp data-start=\"1303\" data-end=\"1563\"\u003e\u003cstrong data-start=\"1303\" data-end=\"1365\"\u003eQ: Is the Hayward W3HS200FDN suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1365\" data-end=\"1368\"\u003eA: Yes. The cupronickel heat exchanger provides improved resistance to corrosion, making it suitable for saltwater and chemically treated pool systems when water chemistry is properly maintained.\u003c\/p\u003e\n\u003chr data-start=\"1565\" data-end=\"1568\"\u003e\n\u003cp data-start=\"1570\" data-end=\"1822\"\u003e\u003cstrong data-start=\"1570\" data-end=\"1648\"\u003eQ: Can the Hayward W3HS200FDN replace my existing natural gas pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1648\" data-end=\"1651\"\u003eA: Yes. It can replace many existing natural gas heaters, but compatibility depends on gas supply, plumbing layout, electrical setup, venting, and local code requirements.\u003c\/p\u003e\n\u003chr data-start=\"1824\" data-end=\"1827\"\u003e\n\u003cp data-start=\"1829\" data-end=\"2051\"\u003e\u003cstrong data-start=\"1829\" data-end=\"1898\"\u003eQ: Does the Hayward W3HS200FDN require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1898\" data-end=\"1901\"\u003eA: Yes. Professional installation is recommended due to natural gas sizing, electrical wiring, plumbing integration, venting, and safety requirements.\u003c\/p\u003e\n\u003chr data-start=\"2053\" data-end=\"2056\"\u003e\n\u003cp data-start=\"2058\" data-end=\"2284\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2058\" data-end=\"2136\"\u003eQ: When should I choose the Hayward W3HS200FDN instead of a larger heater?\u003c\/strong\u003e\u003cbr data-start=\"2136\" data-end=\"2139\"\u003eA: Choose this 200K BTU model if you have a smaller pool or spa and do not need the faster heat-up performance of higher BTU natural gas heaters.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52193009238328,"sku":"W3HS200FDN","price":3999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Universal_H_Series_H135_H150_Left.png?v=1777768865"},{"product_id":"hayward-w3hs200fdp-universal-h-series-liquid-propane-heater-with-omnix-200k-btu","title":"Hayward  200K BTU Liquid Propane Heater with OmniX,  Universal H-Series | W3HS200FDP |","description":"\u003cp data-start=\"153\" data-end=\"563\"\u003eHayward W3HS200FDP is a Universal H-Series liquid propane heater designed for pool and spa heating applications. This 200,000 BTU model features OmniX connectivity for app-based control, scheduling, diagnostics, and remote access when used with a compatible gateway. It is built with a standard cupronickel heat exchanger and is suited for installations requiring dependable propane-fired pool and spa heating.\u003c\/p\u003e\n\u003cp data-start=\"565\" data-end=\"605\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"607\" data-end=\"619\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"621\" data-end=\"1726\"\u003e• Hayward W3HS200FDP is a Universal H-Series liquid propane heater designed for pool and spa heating applications with built-in OmniX functionality.\u003cbr data-start=\"769\" data-end=\"772\"\u003e• This model is rated at 200,000 BTU for dependable heating performance in compatible pool and spa systems.\u003cbr data-start=\"879\" data-end=\"882\"\u003e• The heater uses a standard cupronickel heat exchanger for improved durability in demanding water conditions.\u003cbr data-start=\"992\" data-end=\"995\"\u003e• OmniX capability supports mobile app control, scheduling, diagnostics, and remote connectivity when paired with a compatible Hayward OmniX Gateway.\u003cbr data-start=\"1144\" data-end=\"1147\"\u003e• Universal Display controls provide an integrated interface for standalone operation and compatible remote control configurations.\u003cbr data-start=\"1278\" data-end=\"1281\"\u003e• This heater uses forced-draft combustion with hot surface ignition to support consistent heater operation in properly installed systems.\u003cbr data-start=\"1419\" data-end=\"1422\"\u003e• The unit is designed for 120 or 240 VAC electrical service on applicable 200K models, offering flexible installation options where permitted by code.\u003cbr data-start=\"1573\" data-end=\"1576\"\u003e• Integrated operation modes support standalone control, OmniX app control, 2-wire or 3-wire remote control, and Hayward Omni automation connection.\u003c\/p\u003e\n\u003cp data-start=\"1728\" data-end=\"1768\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"1770\" data-end=\"1786\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1788\" data-end=\"2353\"\u003eThe Hayward W3HS200FDP Universal H-Series Liquid Propane Heater with OmniX is built for pool and spa owners who want dependable propane heat with modern control capability. Rated at 200,000 BTU, this model combines a compact heater platform with Hayward’s Universal Display and OmniX connectivity, allowing the heater to be configured and operated through onboard controls or through the OmniX mobile app. That makes it a practical option for installations where users want better programmability, more convenient control access, and improved diagnostic visibility.\u003c\/p\u003e\n\u003cp data-start=\"2355\" data-end=\"2881\"\u003eThis heater is also designed around long-term durability and installation flexibility. The standard cupronickel heat exchanger helps improve resistance to corrosion-related wear, and the unit supports multiple control methods including standalone operation, remote thermostat control, and Hayward Omni automation integration. For pool and spa applications where reliable heating performance, liquid propane compatibility, and connected control are key priorities, this model offers a strong and serviceable equipment solution.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"299\"\u003e\u003cstrong data-start=\"79\" data-end=\"152\"\u003eQ: What is the Hayward W3HS200FDP Universal H-Series heater used for?\u003c\/strong\u003e\u003cbr data-start=\"152\" data-end=\"155\"\u003eA: The Hayward W3HS200FDP is a 200,000 BTU liquid propane pool and spa heater designed for reliable heating in residential pool and spa systems.\u003c\/p\u003e\n\u003chr data-start=\"301\" data-end=\"304\"\u003e\n\u003cp data-start=\"306\" data-end=\"476\"\u003e\u003cstrong data-start=\"306\" data-end=\"362\"\u003eQ: Is the Hayward W3HS200FDP propane or natural gas?\u003c\/strong\u003e\u003cbr data-start=\"362\" data-end=\"365\"\u003eA: This model is designed for liquid propane. Natural gas versions are available under different model numbers.\u003c\/p\u003e\n\u003chr data-start=\"478\" data-end=\"481\"\u003e\n\u003cp data-start=\"483\" data-end=\"684\"\u003e\u003cstrong data-start=\"483\" data-end=\"540\"\u003eQ: What size pool is the Hayward W3HS200FDP best for?\u003c\/strong\u003e\u003cbr data-start=\"540\" data-end=\"543\"\u003eA: This 200K BTU heater is best for small to medium-sized pools, spas, and pool\/spa combinations that require consistent heating performance.\u003c\/p\u003e\n\u003chr data-start=\"686\" data-end=\"689\"\u003e\n\u003cp data-start=\"691\" data-end=\"867\"\u003e\u003cstrong data-start=\"691\" data-end=\"733\"\u003eQ: Is the Hayward W3HS200FDP worth it?\u003c\/strong\u003e\u003cbr data-start=\"733\" data-end=\"736\"\u003eA: Yes. It is a reliable option for pool owners who need propane heating, durable construction, and OmniX smart control capability.\u003c\/p\u003e\n\u003chr data-start=\"869\" data-end=\"872\"\u003e\n\u003cp data-start=\"874\" data-end=\"1093\"\u003e\u003cstrong data-start=\"874\" data-end=\"921\"\u003eQ: What is OmniX on the Hayward W3HS200FDP?\u003c\/strong\u003e\u003cbr data-start=\"921\" data-end=\"924\"\u003eA: OmniX is Hayward’s connected control platform that supports app-based control, scheduling, diagnostics, and remote access when paired with a compatible OmniX Gateway.\u003c\/p\u003e\n\u003chr data-start=\"1095\" data-end=\"1098\"\u003e\n\u003cp data-start=\"1100\" data-end=\"1298\"\u003e\u003cstrong data-start=\"1100\" data-end=\"1158\"\u003eQ: Can I control the Hayward W3HS200FDP from my phone?\u003c\/strong\u003e\u003cbr data-start=\"1158\" data-end=\"1161\"\u003eA: Yes. When connected with a compatible Hayward OmniX Gateway, this heater can be monitored and controlled through the OmniX mobile app.\u003c\/p\u003e\n\u003chr data-start=\"1300\" data-end=\"1303\"\u003e\n\u003cp data-start=\"1305\" data-end=\"1565\"\u003e\u003cstrong data-start=\"1305\" data-end=\"1367\"\u003eQ: Is the Hayward W3HS200FDP suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1367\" data-end=\"1370\"\u003eA: Yes. The cupronickel heat exchanger provides improved resistance to corrosion, making it suitable for saltwater and chemically treated pool systems when water chemistry is properly maintained.\u003c\/p\u003e\n\u003chr data-start=\"1567\" data-end=\"1570\"\u003e\n\u003cp data-start=\"1572\" data-end=\"1816\"\u003e\u003cstrong data-start=\"1572\" data-end=\"1646\"\u003eQ: Can the Hayward W3HS200FDP replace my existing propane pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1646\" data-end=\"1649\"\u003eA: Yes. It can replace many existing propane heaters, but compatibility depends on gas supply, plumbing layout, electrical setup, venting, and local code requirements.\u003c\/p\u003e\n\u003chr data-start=\"1818\" data-end=\"1821\"\u003e\n\u003cp data-start=\"1823\" data-end=\"2045\"\u003e\u003cstrong data-start=\"1823\" data-end=\"1892\"\u003eQ: Does the Hayward W3HS200FDP require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1892\" data-end=\"1895\"\u003eA: Yes. Professional installation is recommended due to propane gas sizing, electrical wiring, plumbing integration, venting, and safety requirements.\u003c\/p\u003e\n\u003chr data-start=\"2047\" data-end=\"2050\"\u003e\n\u003cp data-start=\"2052\" data-end=\"2274\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2052\" data-end=\"2130\"\u003eQ: When should I choose the Hayward W3HS200FDP instead of a larger heater?\u003c\/strong\u003e\u003cbr data-start=\"2130\" data-end=\"2133\"\u003eA: Choose this 200K BTU model if you have a smaller pool or spa and do not need the faster heat-up performance of higher BTU propane heaters.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52193013301560,"sku":"W3HS200FDP","price":3999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Universal_H_Series_H135_H150_Left.png?v=1777768865"},{"product_id":"hayward-w3hs250fdn-universal-h-series-natural-gas-heater-with-omnix-250k-btu","title":"Hayward 250K BTU  Natural Gas Heater with OmniX, Universal H-Series | W3HS250FDN |","description":"\u003cp data-start=\"150\" data-end=\"555\"\u003eHayward W3HS250FDN is a Universal H-Series natural gas heater designed for pool and spa heating applications. This 250,000 BTU model features OmniX connectivity for app-based control, scheduling, diagnostics, and remote access when used with a compatible gateway. It is built with a standard cupronickel heat exchanger and is suited for installations requiring dependable natural gas pool and spa heating.\u003c\/p\u003e\n\u003cp data-start=\"557\" data-end=\"597\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"599\" data-end=\"611\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"613\" data-end=\"1715\"\u003e• Hayward W3HS250FDN is a Universal H-Series natural gas heater designed for pool and spa heating applications with built-in OmniX functionality.\u003cbr data-start=\"758\" data-end=\"761\"\u003e• This model is rated at 250,000 BTU for dependable heating performance in compatible pool and spa systems.\u003cbr data-start=\"868\" data-end=\"871\"\u003e• The heater uses a standard cupronickel heat exchanger for improved durability in demanding water conditions.\u003cbr data-start=\"981\" data-end=\"984\"\u003e• OmniX capability supports mobile app control, scheduling, diagnostics, and remote connectivity when paired with a compatible Hayward OmniX Gateway.\u003cbr data-start=\"1133\" data-end=\"1136\"\u003e• Universal Display controls provide an integrated interface for standalone operation and compatible remote control configurations.\u003cbr data-start=\"1267\" data-end=\"1270\"\u003e• This heater uses forced-draft combustion with hot surface ignition to support consistent heater operation in properly installed systems.\u003cbr data-start=\"1408\" data-end=\"1411\"\u003e• The unit is designed for 120 or 240 VAC electrical service on applicable 250K models, offering flexible installation options where permitted by code.\u003cbr data-start=\"1562\" data-end=\"1565\"\u003e• Integrated operation modes support standalone control, OmniX app control, 2-wire or 3-wire remote control, and Hayward Omni automation connection.\u003c\/p\u003e\n\u003cp data-start=\"1717\" data-end=\"1757\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"1759\" data-end=\"1775\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1777\" data-end=\"2335\"\u003eThe Hayward W3HS250FDN Universal H-Series Natural Gas Heater with OmniX is built for pool and spa owners who want dependable gas heat with modern control capability. Rated at 250,000 BTU, this model combines a compact heater platform with Hayward’s Universal Display and OmniX connectivity, allowing the heater to be configured and operated through onboard controls or through the OmniX mobile app. That makes it a practical option for installations where users want better programmability, more convenient control access, and improved diagnostic visibility.\u003c\/p\u003e\n\u003cp data-start=\"2337\" data-end=\"2860\"\u003eThis heater is also designed around long-term durability and installation flexibility. The standard cupronickel heat exchanger helps improve resistance to corrosion-related wear, and the unit supports multiple control methods including standalone operation, remote thermostat control, and Hayward Omni automation integration. For pool and spa applications where reliable heating performance, natural gas compatibility, and connected control are key priorities, this model offers a strong and serviceable equipment solution.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69ed3017-cb7c-83e8-99f3-dedd59fc1a7d-14\" data-testid=\"conversation-turn-168\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"0da9c170-590e-483c-b4b5-8d3be712eb56\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"296\"\u003e\u003cstrong data-start=\"79\" data-end=\"152\"\u003eQ: What is the Hayward W3HS250FDN Universal H-Series heater used for?\u003c\/strong\u003e\u003cbr data-start=\"152\" data-end=\"155\"\u003eA: The Hayward W3HS250FDN is a 250,000 BTU natural gas pool and spa heater designed for reliable heating in residential pool and spa systems.\u003c\/p\u003e\n\u003chr data-start=\"298\" data-end=\"301\"\u003e\n\u003cp data-start=\"303\" data-end=\"466\"\u003e\u003cstrong data-start=\"303\" data-end=\"359\"\u003eQ: Is the Hayward W3HS250FDN natural gas or propane?\u003c\/strong\u003e\u003cbr data-start=\"359\" data-end=\"362\"\u003eA: This model is designed for natural gas. Propane versions are available under different model numbers.\u003c\/p\u003e\n\u003chr data-start=\"468\" data-end=\"471\"\u003e\n\u003cp data-start=\"473\" data-end=\"674\"\u003e\u003cstrong data-start=\"473\" data-end=\"530\"\u003eQ: What size pool is the Hayward W3HS250FDN best for?\u003c\/strong\u003e\u003cbr data-start=\"530\" data-end=\"533\"\u003eA: This 250K BTU heater is best for small to medium-sized pools, spas, and pool\/spa combinations that require consistent heating performance.\u003c\/p\u003e\n\u003chr data-start=\"676\" data-end=\"679\"\u003e\n\u003cp data-start=\"681\" data-end=\"872\"\u003e\u003cstrong data-start=\"681\" data-end=\"723\"\u003eQ: Is the Hayward W3HS250FDN worth it?\u003c\/strong\u003e\u003cbr data-start=\"723\" data-end=\"726\"\u003eA: Yes. It is a strong option for pool owners who want dependable natural gas heating, cupronickel durability, and OmniX smart control capability.\u003c\/p\u003e\n\u003chr data-start=\"874\" data-end=\"877\"\u003e\n\u003cp data-start=\"879\" data-end=\"1098\"\u003e\u003cstrong data-start=\"879\" data-end=\"926\"\u003eQ: What is OmniX on the Hayward W3HS250FDN?\u003c\/strong\u003e\u003cbr data-start=\"926\" data-end=\"929\"\u003eA: OmniX is Hayward’s connected control platform that supports app-based control, scheduling, diagnostics, and remote access when paired with a compatible OmniX Gateway.\u003c\/p\u003e\n\u003chr data-start=\"1100\" data-end=\"1103\"\u003e\n\u003cp data-start=\"1105\" data-end=\"1303\"\u003e\u003cstrong data-start=\"1105\" data-end=\"1163\"\u003eQ: Can I control the Hayward W3HS250FDN from my phone?\u003c\/strong\u003e\u003cbr data-start=\"1163\" data-end=\"1166\"\u003eA: Yes. When connected with a compatible Hayward OmniX Gateway, this heater can be monitored and controlled through the OmniX mobile app.\u003c\/p\u003e\n\u003chr data-start=\"1305\" data-end=\"1308\"\u003e\n\u003cp data-start=\"1310\" data-end=\"1570\"\u003e\u003cstrong data-start=\"1310\" data-end=\"1372\"\u003eQ: Is the Hayward W3HS250FDN suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1372\" data-end=\"1375\"\u003eA: Yes. The cupronickel heat exchanger provides improved resistance to corrosion, making it suitable for saltwater and chemically treated pool systems when water chemistry is properly maintained.\u003c\/p\u003e\n\u003chr data-start=\"1572\" data-end=\"1575\"\u003e\n\u003cp data-start=\"1577\" data-end=\"1829\"\u003e\u003cstrong data-start=\"1577\" data-end=\"1655\"\u003eQ: Can the Hayward W3HS250FDN replace my existing natural gas pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1655\" data-end=\"1658\"\u003eA: Yes. It can replace many existing natural gas heaters, but compatibility depends on gas supply, plumbing layout, electrical setup, venting, and local code requirements.\u003c\/p\u003e\n\u003chr data-start=\"1831\" data-end=\"1834\"\u003e\n\u003cp data-start=\"1836\" data-end=\"2058\"\u003e\u003cstrong data-start=\"1836\" data-end=\"1905\"\u003eQ: Does the Hayward W3HS250FDN require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1905\" data-end=\"1908\"\u003eA: Yes. Professional installation is recommended due to natural gas sizing, electrical wiring, plumbing integration, venting, and safety requirements.\u003c\/p\u003e\n\u003chr data-start=\"2060\" data-end=\"2063\"\u003e\n\u003cp data-start=\"2065\" data-end=\"2287\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2065\" data-end=\"2143\"\u003eQ: When should I choose the Hayward W3HS250FDN instead of a larger heater?\u003c\/strong\u003e\u003cbr data-start=\"2143\" data-end=\"2146\"\u003eA: Choose this 250K BTU model if you have a smaller or medium-sized pool and do not need the faster heat-up performance of a 400K BTU heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"pointer-events-none translate-y-(--scroll-root-safe-area-inset-bottom) R6Vx5W_threadScrollVars min-h-(--gutter-remaining-height,0px) group-data-stream-active\/scroll-root:h-[calc(var(--thread-response-height)-16*var(--spacing))]\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52193573896504,"sku":"W3HS250FDN","price":4299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Universal_H_Series_H135_H150_Left.png?v=1777768865"},{"product_id":"hayward-w3hs250fdp-universal-h-series-liquid-propane-heater-with-omnix-250k-btu","title":"Hayward 250K BTU Liquid Propane Heater with OmniX, Universal H-Series  | W3HS250FDP |","description":"\u003cp data-start=\"153\" data-end=\"563\"\u003eHayward W3HS250FDP is a Universal H-Series liquid propane heater designed for pool and spa heating applications. This 250,000 BTU model features OmniX connectivity for app-based control, scheduling, diagnostics, and remote access when used with a compatible gateway. It is built with a standard cupronickel heat exchanger and is suited for installations requiring dependable propane-fired pool and spa heating.\u003c\/p\u003e\n\u003cp data-start=\"565\" data-end=\"605\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"607\" data-end=\"619\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"621\" data-end=\"1726\"\u003e• Hayward W3HS250FDP is a Universal H-Series liquid propane heater designed for pool and spa heating applications with built-in OmniX functionality.\u003cbr data-start=\"769\" data-end=\"772\"\u003e• This model is rated at 250,000 BTU for dependable heating performance in compatible pool and spa systems.\u003cbr data-start=\"879\" data-end=\"882\"\u003e• The heater uses a standard cupronickel heat exchanger for improved durability in demanding water conditions.\u003cbr data-start=\"992\" data-end=\"995\"\u003e• OmniX capability supports mobile app control, scheduling, diagnostics, and remote connectivity when paired with a compatible Hayward OmniX Gateway.\u003cbr data-start=\"1144\" data-end=\"1147\"\u003e• Universal Display controls provide an integrated interface for standalone operation and compatible remote control configurations.\u003cbr data-start=\"1278\" data-end=\"1281\"\u003e• This heater uses forced-draft combustion with hot surface ignition to support consistent heater operation in properly installed systems.\u003cbr data-start=\"1419\" data-end=\"1422\"\u003e• The unit is designed for 120 or 240 VAC electrical service on applicable 250K models, offering flexible installation options where permitted by code.\u003cbr data-start=\"1573\" data-end=\"1576\"\u003e• Integrated operation modes support standalone control, OmniX app control, 2-wire or 3-wire remote control, and Hayward Omni automation connection.\u003c\/p\u003e\n\u003cp data-start=\"1728\" data-end=\"1768\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"1770\" data-end=\"1786\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1788\" data-end=\"2353\"\u003eThe Hayward W3HS250FDP Universal H-Series Liquid Propane Heater with OmniX is built for pool and spa owners who want dependable propane heat with modern control capability. Rated at 250,000 BTU, this model combines a compact heater platform with Hayward’s Universal Display and OmniX connectivity, allowing the heater to be configured and operated through onboard controls or through the OmniX mobile app. That makes it a practical option for installations where users want better programmability, more convenient control access, and improved diagnostic visibility.\u003c\/p\u003e\n\u003cp data-start=\"2355\" data-end=\"2881\"\u003eThis heater is also designed around long-term durability and installation flexibility. The standard cupronickel heat exchanger helps improve resistance to corrosion-related wear, and the unit supports multiple control methods including standalone operation, remote thermostat control, and Hayward Omni automation integration. For pool and spa applications where reliable heating performance, liquid propane compatibility, and connected control are key priorities, this model offers a strong and serviceable equipment solution.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"299\"\u003e\u003cstrong data-start=\"79\" data-end=\"152\"\u003eQ: What is the Hayward W3HS250FDP Universal H-Series heater used for?\u003c\/strong\u003e\u003cbr data-start=\"152\" data-end=\"155\"\u003eA: The Hayward W3HS250FDP is a 250,000 BTU liquid propane pool and spa heater designed for reliable heating in residential pool and spa systems.\u003c\/p\u003e\n\u003chr data-start=\"301\" data-end=\"304\"\u003e\n\u003cp data-start=\"306\" data-end=\"476\"\u003e\u003cstrong data-start=\"306\" data-end=\"362\"\u003eQ: Is the Hayward W3HS250FDP propane or natural gas?\u003c\/strong\u003e\u003cbr data-start=\"362\" data-end=\"365\"\u003eA: This model is designed for liquid propane. Natural gas versions are available under different model numbers.\u003c\/p\u003e\n\u003chr data-start=\"478\" data-end=\"481\"\u003e\n\u003cp data-start=\"483\" data-end=\"677\"\u003e\u003cstrong data-start=\"483\" data-end=\"540\"\u003eQ: What size pool is the Hayward W3HS250FDP best for?\u003c\/strong\u003e\u003cbr data-start=\"540\" data-end=\"543\"\u003eA: This 250K BTU heater is best for small to medium-sized pools, spas, and pool\/spa combinations that need steady heating performance.\u003c\/p\u003e\n\u003chr data-start=\"679\" data-end=\"682\"\u003e\n\u003cp data-start=\"684\" data-end=\"871\"\u003e\u003cstrong data-start=\"684\" data-end=\"726\"\u003eQ: Is the Hayward W3HS250FDP worth it?\u003c\/strong\u003e\u003cbr data-start=\"726\" data-end=\"729\"\u003eA: Yes. It is a strong option for pool owners who need dependable propane heating, cupronickel durability, and OmniX smart control capability.\u003c\/p\u003e\n\u003chr data-start=\"873\" data-end=\"876\"\u003e\n\u003cp data-start=\"878\" data-end=\"1097\"\u003e\u003cstrong data-start=\"878\" data-end=\"925\"\u003eQ: What is OmniX on the Hayward W3HS250FDP?\u003c\/strong\u003e\u003cbr data-start=\"925\" data-end=\"928\"\u003eA: OmniX is Hayward’s connected control platform that supports app-based control, scheduling, diagnostics, and remote access when paired with a compatible OmniX Gateway.\u003c\/p\u003e\n\u003chr data-start=\"1099\" data-end=\"1102\"\u003e\n\u003cp data-start=\"1104\" data-end=\"1302\"\u003e\u003cstrong data-start=\"1104\" data-end=\"1162\"\u003eQ: Can I control the Hayward W3HS250FDP from my phone?\u003c\/strong\u003e\u003cbr data-start=\"1162\" data-end=\"1165\"\u003eA: Yes. When connected with a compatible Hayward OmniX Gateway, this heater can be monitored and controlled through the OmniX mobile app.\u003c\/p\u003e\n\u003chr data-start=\"1304\" data-end=\"1307\"\u003e\n\u003cp data-start=\"1309\" data-end=\"1566\"\u003e\u003cstrong data-start=\"1309\" data-end=\"1371\"\u003eQ: Is the Hayward W3HS250FDP suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1371\" data-end=\"1374\"\u003eA: Yes. The cupronickel heat exchanger provides improved corrosion resistance, making it suitable for saltwater and chemically treated pool systems when water chemistry is properly maintained.\u003c\/p\u003e\n\u003chr data-start=\"1568\" data-end=\"1571\"\u003e\n\u003cp data-start=\"1573\" data-end=\"1817\"\u003e\u003cstrong data-start=\"1573\" data-end=\"1647\"\u003eQ: Can the Hayward W3HS250FDP replace my existing propane pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1647\" data-end=\"1650\"\u003eA: Yes. It can replace many existing propane heaters, but compatibility depends on gas supply, plumbing layout, electrical setup, venting, and local code requirements.\u003c\/p\u003e\n\u003chr data-start=\"1819\" data-end=\"1822\"\u003e\n\u003cp data-start=\"1824\" data-end=\"2046\"\u003e\u003cstrong data-start=\"1824\" data-end=\"1893\"\u003eQ: Does the Hayward W3HS250FDP require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1893\" data-end=\"1896\"\u003eA: Yes. Professional installation is recommended due to propane gas sizing, electrical wiring, plumbing integration, venting, and safety requirements.\u003c\/p\u003e\n\u003chr data-start=\"2048\" data-end=\"2051\"\u003e\n\u003cp data-start=\"2053\" data-end=\"2271\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2053\" data-end=\"2133\"\u003eQ: When should I choose the Hayward W3HS250FDP instead of a 400K BTU heater?\u003c\/strong\u003e\u003cbr data-start=\"2133\" data-end=\"2136\"\u003eA: Choose this 250K BTU model if you have a smaller or medium-sized pool and do not need the faster heat-up power of a 400K BTU heater.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52193612169528,"sku":"W3HS250FDP","price":4299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Universal_H_Series_H135_H150_Left.png?v=1777768865"},{"product_id":"hayward-w3hs400fdn-universal-h-series-natural-gas-heater-with-omnix-400k-btu","title":"Hayward 400K BTU  Natural Gas Heater with OmniX, Universal H-Series  | W3HS400FDN |","description":"\u003cp data-start=\"150\" data-end=\"555\"\u003eHayward W3HS400FDN is a Universal H-Series natural gas heater designed for pool and spa heating applications. This 400,000 BTU model features OmniX connectivity for app-based control, scheduling, diagnostics, and remote access when used with a compatible gateway. It is built with a standard cupronickel heat exchanger and is suited for installations requiring dependable natural gas pool and spa heating.\u003c\/p\u003e\n\u003cp data-start=\"557\" data-end=\"597\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"599\" data-end=\"611\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"613\" data-end=\"1715\"\u003e• Hayward W3HS400FDN is a Universal H-Series natural gas heater designed for pool and spa heating applications with built-in OmniX functionality.\u003cbr data-start=\"758\" data-end=\"761\"\u003e• This model is rated at 400,000 BTU for dependable heating performance in compatible pool and spa systems.\u003cbr data-start=\"868\" data-end=\"871\"\u003e• The heater uses a standard cupronickel heat exchanger for improved durability in demanding water conditions.\u003cbr data-start=\"981\" data-end=\"984\"\u003e• OmniX capability supports mobile app control, scheduling, diagnostics, and remote connectivity when paired with a compatible Hayward OmniX Gateway.\u003cbr data-start=\"1133\" data-end=\"1136\"\u003e• Universal Display controls provide an integrated interface for standalone operation and compatible remote control configurations.\u003cbr data-start=\"1267\" data-end=\"1270\"\u003e• This heater uses forced-draft combustion with hot surface ignition to support consistent heater operation in properly installed systems.\u003cbr data-start=\"1408\" data-end=\"1411\"\u003e• The unit is designed for 120 or 240 VAC electrical service on applicable 400K models, offering flexible installation options where permitted by code.\u003cbr data-start=\"1562\" data-end=\"1565\"\u003e• Integrated operation modes support standalone control, OmniX app control, 2-wire or 3-wire remote control, and Hayward Omni automation connection.\u003c\/p\u003e\n\u003cp data-start=\"1717\" data-end=\"1757\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"1759\" data-end=\"1775\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1777\" data-end=\"2341\"\u003eThe Hayward W3HS400FDN Universal H-Series Natural Gas Heater with OmniX is built for pool and spa owners who want dependable gas heat with modern control capability. Rated at 400,000 BTU, this model combines a high-capacity heater platform with Hayward’s Universal Display and OmniX connectivity, allowing the heater to be configured and operated through onboard controls or through the OmniX mobile app. That makes it a practical option for installations where users want better programmability, more convenient control access, and improved diagnostic visibility.\u003c\/p\u003e\n\u003cp data-start=\"2343\" data-end=\"2866\"\u003eThis heater is also designed around long-term durability and installation flexibility. The standard cupronickel heat exchanger helps improve resistance to corrosion-related wear, and the unit supports multiple control methods including standalone operation, remote thermostat control, and Hayward Omni automation integration. For pool and spa applications where reliable heating performance, natural gas compatibility, and connected control are key priorities, this model offers a strong and serviceable equipment solution.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69ed3017-cb7c-83e8-99f3-dedd59fc1a7d-12\" data-testid=\"conversation-turn-164\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"d86e477c-1d44-4f14-904d-3716aae59838\" dir=\"auto\" data-message-model-slug=\"gpt-5-5-thinking\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"302\"\u003e\u003cstrong data-start=\"79\" data-end=\"152\"\u003eQ: What is the Hayward W3HS400FDN Universal H-Series heater used for?\u003c\/strong\u003e\u003cbr data-start=\"152\" data-end=\"155\"\u003eA: The Hayward W3HS400FDN is a 400,000 BTU natural gas pool and spa heater designed for fast, reliable heating in residential pool and spa systems.\u003c\/p\u003e\n\u003chr data-start=\"304\" data-end=\"307\"\u003e\n\u003cp data-start=\"309\" data-end=\"472\"\u003e\u003cstrong data-start=\"309\" data-end=\"365\"\u003eQ: Is the Hayward W3HS400FDN natural gas or propane?\u003c\/strong\u003e\u003cbr data-start=\"365\" data-end=\"368\"\u003eA: This model is designed for natural gas. Propane versions are available under different model numbers.\u003c\/p\u003e\n\u003chr data-start=\"474\" data-end=\"477\"\u003e\n\u003cp data-start=\"479\" data-end=\"687\"\u003e\u003cstrong data-start=\"479\" data-end=\"536\"\u003eQ: What size pool is the Hayward W3HS400FDN best for?\u003c\/strong\u003e\u003cbr data-start=\"536\" data-end=\"539\"\u003eA: This 400K BTU heater is best for large pools, attached spas, and pool\/spa combinations that need fast heat-up and consistent temperature control.\u003c\/p\u003e\n\u003chr data-start=\"689\" data-end=\"692\"\u003e\n\u003cp data-start=\"694\" data-end=\"886\"\u003e\u003cstrong data-start=\"694\" data-end=\"736\"\u003eQ: Is the Hayward W3HS400FDN worth it?\u003c\/strong\u003e\u003cbr data-start=\"736\" data-end=\"739\"\u003eA: Yes. It is a strong option for pool owners who need high-output natural gas heating, cupronickel durability, and OmniX smart control capability.\u003c\/p\u003e\n\u003chr data-start=\"888\" data-end=\"891\"\u003e\n\u003cp data-start=\"893\" data-end=\"1112\"\u003e\u003cstrong data-start=\"893\" data-end=\"940\"\u003eQ: What is OmniX on the Hayward W3HS400FDN?\u003c\/strong\u003e\u003cbr data-start=\"940\" data-end=\"943\"\u003eA: OmniX is Hayward’s connected control platform that supports app-based control, scheduling, diagnostics, and remote access when paired with a compatible OmniX Gateway.\u003c\/p\u003e\n\u003chr data-start=\"1114\" data-end=\"1117\"\u003e\n\u003cp data-start=\"1119\" data-end=\"1317\"\u003e\u003cstrong data-start=\"1119\" data-end=\"1177\"\u003eQ: Can I control the Hayward W3HS400FDN from my phone?\u003c\/strong\u003e\u003cbr data-start=\"1177\" data-end=\"1180\"\u003eA: Yes. When connected with a compatible Hayward OmniX Gateway, this heater can be monitored and controlled through the OmniX mobile app.\u003c\/p\u003e\n\u003chr data-start=\"1319\" data-end=\"1322\"\u003e\n\u003cp data-start=\"1324\" data-end=\"1584\"\u003e\u003cstrong data-start=\"1324\" data-end=\"1386\"\u003eQ: Is the Hayward W3HS400FDN suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1386\" data-end=\"1389\"\u003eA: Yes. The cupronickel heat exchanger provides improved resistance to corrosion, making it suitable for saltwater and chemically treated pool systems when water chemistry is properly maintained.\u003c\/p\u003e\n\u003chr data-start=\"1586\" data-end=\"1589\"\u003e\n\u003cp data-start=\"1591\" data-end=\"1843\"\u003e\u003cstrong data-start=\"1591\" data-end=\"1669\"\u003eQ: Can the Hayward W3HS400FDN replace my existing natural gas pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1669\" data-end=\"1672\"\u003eA: Yes. It can replace many existing natural gas heaters, but compatibility depends on gas supply, plumbing layout, electrical setup, venting, and local code requirements.\u003c\/p\u003e\n\u003chr data-start=\"1845\" data-end=\"1848\"\u003e\n\u003cp data-start=\"1850\" data-end=\"2072\"\u003e\u003cstrong data-start=\"1850\" data-end=\"1919\"\u003eQ: Does the Hayward W3HS400FDN require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1919\" data-end=\"1922\"\u003eA: Yes. Professional installation is recommended due to natural gas sizing, electrical wiring, plumbing integration, venting, and safety requirements.\u003c\/p\u003e\n\u003chr data-start=\"2074\" data-end=\"2077\"\u003e\n\u003cp data-start=\"2079\" data-end=\"2296\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2079\" data-end=\"2158\"\u003eQ: When should I choose the Hayward W3HS400FDN instead of a smaller heater?\u003c\/strong\u003e\u003cbr data-start=\"2158\" data-end=\"2161\"\u003eA: Choose this 400K BTU model if you have a large pool, attached spa, or need faster heat-up compared to lower BTU natural gas heaters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52193640481080,"sku":"W3HS400FDN","price":5399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Universal_H_Series_H135_H150_Left.png?v=1777768865"},{"product_id":"hayward-w3hs400fdp-universal-h-series-liquid-propane-heater-with-omnix-400k-btu","title":"Hayward 400K BTU Liquid Propane Heater with OmniX, Universal H-Series  | W3HS400FDP |","description":"\u003cp data-start=\"153\" data-end=\"563\"\u003eHayward W3HS400FDP is a Universal H-Series liquid propane heater designed for pool and spa heating applications. This 400,000 BTU model features OmniX connectivity for app-based control, scheduling, diagnostics, and remote access when used with a compatible gateway. It is built with a standard cupronickel heat exchanger and is suited for installations requiring dependable propane-fired pool and spa heating.\u003c\/p\u003e\n\u003cp data-start=\"565\" data-end=\"605\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"607\" data-end=\"619\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"621\" data-end=\"1726\"\u003e• Hayward W3HS400FDP is a Universal H-Series liquid propane heater designed for pool and spa heating applications with built-in OmniX functionality.\u003cbr data-start=\"769\" data-end=\"772\"\u003e• This model is rated at 400,000 BTU for dependable heating performance in compatible pool and spa systems.\u003cbr data-start=\"879\" data-end=\"882\"\u003e• The heater uses a standard cupronickel heat exchanger for improved durability in demanding water conditions.\u003cbr data-start=\"992\" data-end=\"995\"\u003e• OmniX capability supports mobile app control, scheduling, diagnostics, and remote connectivity when paired with a compatible Hayward OmniX Gateway.\u003cbr data-start=\"1144\" data-end=\"1147\"\u003e• Universal Display controls provide an integrated interface for standalone operation and compatible remote control configurations.\u003cbr data-start=\"1278\" data-end=\"1281\"\u003e• This heater uses forced-draft combustion with hot surface ignition to support consistent heater operation in properly installed systems.\u003cbr data-start=\"1419\" data-end=\"1422\"\u003e• The unit is designed for 120 or 240 VAC electrical service on applicable 400K models, offering flexible installation options where permitted by code.\u003cbr data-start=\"1573\" data-end=\"1576\"\u003e• Integrated operation modes support standalone control, OmniX app control, 2-wire or 3-wire remote control, and Hayward Omni automation connection.\u003c\/p\u003e\n\u003cp data-start=\"1728\" data-end=\"1768\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"1770\" data-end=\"1786\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1788\" data-end=\"2359\"\u003eThe Hayward W3HS400FDP Universal H-Series Liquid Propane Heater with OmniX is built for pool and spa owners who want dependable propane heat with modern control capability. Rated at 400,000 BTU, this model combines a high-capacity heater platform with Hayward’s Universal Display and OmniX connectivity, allowing the heater to be configured and operated through onboard controls or through the OmniX mobile app. That makes it a practical option for installations where users want better programmability, more convenient control access, and improved diagnostic visibility.\u003c\/p\u003e\n\u003cp data-start=\"2361\" data-end=\"2887\"\u003eThis heater is also designed around long-term durability and installation flexibility. The standard cupronickel heat exchanger helps improve resistance to corrosion-related wear, and the unit supports multiple control methods including standalone operation, remote thermostat control, and Hayward Omni automation integration. For pool and spa applications where reliable heating performance, liquid propane compatibility, and connected control are key priorities, this model offers a strong and serviceable equipment solution.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"305\"\u003e\u003cstrong data-start=\"79\" data-end=\"152\"\u003eQ: What is the Hayward W3HS400FDP Universal H-Series heater used for?\u003c\/strong\u003e\u003cbr data-start=\"152\" data-end=\"155\"\u003eA: The Hayward W3HS400FDP is a 400,000 BTU liquid propane pool and spa heater designed for fast, reliable heating in residential pool and spa systems.\u003c\/p\u003e\n\u003chr data-start=\"307\" data-end=\"310\"\u003e\n\u003cp data-start=\"312\" data-end=\"482\"\u003e\u003cstrong data-start=\"312\" data-end=\"368\"\u003eQ: Is the Hayward W3HS400FDP propane or natural gas?\u003c\/strong\u003e\u003cbr data-start=\"368\" data-end=\"371\"\u003eA: This model is designed for liquid propane. Natural gas versions are available under different model numbers.\u003c\/p\u003e\n\u003chr data-start=\"484\" data-end=\"487\"\u003e\n\u003cp data-start=\"489\" data-end=\"697\"\u003e\u003cstrong data-start=\"489\" data-end=\"546\"\u003eQ: What size pool is the Hayward W3HS400FDP best for?\u003c\/strong\u003e\u003cbr data-start=\"546\" data-end=\"549\"\u003eA: This 400K BTU heater is best for large pools, attached spas, and pool\/spa combinations that need fast heat-up and consistent temperature control.\u003c\/p\u003e\n\u003chr data-start=\"699\" data-end=\"702\"\u003e\n\u003cp data-start=\"704\" data-end=\"892\"\u003e\u003cstrong data-start=\"704\" data-end=\"746\"\u003eQ: Is the Hayward W3HS400FDP worth it?\u003c\/strong\u003e\u003cbr data-start=\"746\" data-end=\"749\"\u003eA: Yes. It is a strong option for pool owners who need high-output propane heating, cupronickel durability, and OmniX smart control capability.\u003c\/p\u003e\n\u003chr data-start=\"894\" data-end=\"897\"\u003e\n\u003cp data-start=\"899\" data-end=\"1118\"\u003e\u003cstrong data-start=\"899\" data-end=\"946\"\u003eQ: What is OmniX on the Hayward W3HS400FDP?\u003c\/strong\u003e\u003cbr data-start=\"946\" data-end=\"949\"\u003eA: OmniX is Hayward’s connected control platform that supports app-based control, scheduling, diagnostics, and remote access when paired with a compatible OmniX Gateway.\u003c\/p\u003e\n\u003chr data-start=\"1120\" data-end=\"1123\"\u003e\n\u003cp data-start=\"1125\" data-end=\"1323\"\u003e\u003cstrong data-start=\"1125\" data-end=\"1183\"\u003eQ: Can I control the Hayward W3HS400FDP from my phone?\u003c\/strong\u003e\u003cbr data-start=\"1183\" data-end=\"1186\"\u003eA: Yes. When connected with a compatible Hayward OmniX Gateway, this heater can be monitored and controlled through the OmniX mobile app.\u003c\/p\u003e\n\u003chr data-start=\"1325\" data-end=\"1328\"\u003e\n\u003cp data-start=\"1330\" data-end=\"1590\"\u003e\u003cstrong data-start=\"1330\" data-end=\"1392\"\u003eQ: Is the Hayward W3HS400FDP suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1392\" data-end=\"1395\"\u003eA: Yes. The cupronickel heat exchanger provides improved resistance to corrosion, making it suitable for saltwater and chemically treated pool systems when water chemistry is properly maintained.\u003c\/p\u003e\n\u003chr data-start=\"1592\" data-end=\"1595\"\u003e\n\u003cp data-start=\"1597\" data-end=\"1841\"\u003e\u003cstrong data-start=\"1597\" data-end=\"1671\"\u003eQ: Can the Hayward W3HS400FDP replace my existing propane pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1671\" data-end=\"1674\"\u003eA: Yes. It can replace many existing propane heaters, but compatibility depends on gas supply, plumbing layout, electrical setup, venting, and local code requirements.\u003c\/p\u003e\n\u003chr data-start=\"1843\" data-end=\"1846\"\u003e\n\u003cp data-start=\"1848\" data-end=\"2070\"\u003e\u003cstrong data-start=\"1848\" data-end=\"1917\"\u003eQ: Does the Hayward W3HS400FDP require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1917\" data-end=\"1920\"\u003eA: Yes. Professional installation is recommended due to propane gas sizing, electrical wiring, plumbing integration, venting, and safety requirements.\u003c\/p\u003e\n\u003chr data-start=\"2072\" data-end=\"2075\"\u003e\n\u003cp data-start=\"2077\" data-end=\"2290\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2077\" data-end=\"2156\"\u003eQ: When should I choose the Hayward W3HS400FDP instead of a smaller heater?\u003c\/strong\u003e\u003cbr data-start=\"2156\" data-end=\"2159\"\u003eA: Choose this 400K BTU model if you have a large pool, attached spa, or need faster heat-up compared to lower BTU propane heaters.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52193643594040,"sku":"W3HS400FDP","price":5399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Universal_H_Series_H135_H150_Left.png?v=1777768865"},{"product_id":"hayward-hs400fdn-universal-h-series-natural-gas-heater-with-omnix-400k-btu","title":"Hayward | HS400FDN | Universal H-Series Natural Gas Heater with OmniX | 400K BTU","description":"\u003cp data-start=\"174\" data-end=\"640\"\u003eHayward HS400FDN is a Universal H-Series natural gas pool and spa heater with OmniX designed for high-performance heating, smart connectivity, and easier replacement in compatible pool and spa systems. This model is rated at 400,000 BTU\/hr and combines Hayward’s Universal Display with OmniX embedded intelligence for enhanced programmability, advanced diagnostics, and remote connectivity.\u003c\/p\u003e\n\u003cp data-start=\"642\" data-end=\"682\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"684\" data-end=\"696\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"698\" data-end=\"1931\"\u003e• Hayward HS400FDN is a Universal H-Series natural gas heater with OmniX rated at 400,000 BTU\/hr. \u003cbr data-start=\"833\" data-end=\"836\"\u003e• The OmniX platform adds enhanced programmability, advanced diagnostics, and seamless remote connectivity. \u003cbr data-start=\"981\" data-end=\"984\"\u003e• Hayward’s Universal Display is designed to provide a consistent and intuitive control experience across Omni, OmniX, and competitive automation systems. \u003cbr data-start=\"1176\" data-end=\"1179\"\u003e• The heater uses a cupro-nickel heat exchanger for strong protection against corrosion and premature failure caused by unbalanced water chemistry.\u003cbr data-start=\"1326\" data-end=\"1330\"\u003e• Totally managed water flow is designed to deliver strong hydraulic performance with fast speed-to-heat capability. \u003cbr data-start=\"1484\" data-end=\"1487\"\u003e• The universal junction box supports either left or right electrical installation for more flexible field setup. \u003cbr data-start=\"1638\" data-end=\"1641\"\u003e• Front-panel-only access is designed to simplify service and maintenance without requiring front-and-back panel access. \u003cbr data-start=\"1799\" data-end=\"1802\"\u003e• The heater supports OmniX app control and can also communicate with Hayward Omni automation through a 3-wire smart connection.\u003c\/p\u003e\n\u003cp data-start=\"1933\" data-end=\"1973\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"1975\" data-end=\"1991\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1993\" data-end=\"2617\"\u003eThe Hayward HS400FDN Universal H-Series Natural Gas Heater with OmniX is built for pool owners and service professionals who want strong 400K BTU heating performance with a more modern control platform. As part of the updated H-Series OmniX lineup, this model combines Hayward’s proven Universal H-Series heater design with a newer display and control approach that improves usability, diagnostics, and connected control options. It is especially well suited for pool and spa installations where fast heating, easier retrofit potential, and smarter operation are important priorities.\u003c\/p\u003e\n\u003cp data-start=\"2619\" data-end=\"3263\"\u003eWhat makes this model especially appealing is the combination of heater performance and control flexibility. The dealer announcement highlights drop-in replacement compatibility, cupro-nickel durability, front-panel service access, and embedded OmniX intelligence, while the owner’s manual shows support for standalone control, OmniX app control, traditional remote control, and Hayward Omni automation integration. For buyers looking for a premium 400,000 BTU natural gas heater with smart control capability, the HS400FDN is a strong and current H-Series option.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69ed3017-cb7c-83e8-99f3-dedd59fc1a7d-9\" data-testid=\"conversation-turn-158\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"8ba7e172-6681-4ab0-a8b4-4fa5441c085a\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"322\"\u003e\u003cstrong data-start=\"79\" data-end=\"150\"\u003eQ: What is the Hayward HS400FDN Universal H-Series heater used for?\u003c\/strong\u003e\u003cbr data-start=\"150\" data-end=\"153\"\u003eA: The Hayward HS400FDN is a 400,000 BTU natural gas pool and spa heater designed for large residential and commercial pools that require fast, high-performance heating.\u003c\/p\u003e\n\u003chr data-start=\"324\" data-end=\"327\"\u003e\n\u003cp data-start=\"329\" data-end=\"527\"\u003e\u003cstrong data-start=\"329\" data-end=\"384\"\u003eQ: What size pool is the Hayward HS400FDN best for?\u003c\/strong\u003e\u003cbr data-start=\"384\" data-end=\"387\"\u003eA: This 400K BTU heater is best for large pools, spas, and pool\/spa combinations that need rapid heat-up and consistent temperature control.\u003c\/p\u003e\n\u003chr data-start=\"529\" data-end=\"532\"\u003e\n\u003cp data-start=\"534\" data-end=\"721\"\u003e\u003cstrong data-start=\"534\" data-end=\"574\"\u003eQ: Is the Hayward HS400FDN worth it?\u003c\/strong\u003e\u003cbr data-start=\"574\" data-end=\"577\"\u003eA: Yes. It is a premium heater offering powerful heating output, modern OmniX smart control, and durable construction for long-term performance.\u003c\/p\u003e\n\u003chr data-start=\"723\" data-end=\"726\"\u003e\n\u003cp data-start=\"728\" data-end=\"946\"\u003e\u003cstrong data-start=\"728\" data-end=\"773\"\u003eQ: What is OmniX on the Hayward HS400FDN?\u003c\/strong\u003e\u003cbr data-start=\"773\" data-end=\"776\"\u003eA: OmniX is Hayward’s embedded smart control platform that provides advanced programming, diagnostics, and remote connectivity through mobile apps and automation systems.\u003c\/p\u003e\n\u003chr data-start=\"948\" data-end=\"951\"\u003e\n\u003cp data-start=\"953\" data-end=\"1147\"\u003e\u003cstrong data-start=\"953\" data-end=\"1009\"\u003eQ: Can I control the Hayward HS400FDN from my phone?\u003c\/strong\u003e\u003cbr data-start=\"1009\" data-end=\"1012\"\u003eA: Yes. The OmniX system allows remote monitoring, scheduling, and temperature adjustments using Hayward’s connected control interface.\u003c\/p\u003e\n\u003chr data-start=\"1149\" data-end=\"1152\"\u003e\n\u003cp data-start=\"1154\" data-end=\"1370\"\u003e\u003cstrong data-start=\"1154\" data-end=\"1214\"\u003eQ: Is the Hayward HS400FDN suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1214\" data-end=\"1217\"\u003eA: Yes. The cupro-nickel heat exchanger offers strong resistance to corrosion, making it suitable for saltwater and chemically treated pool environments.\u003c\/p\u003e\n\u003chr data-start=\"1372\" data-end=\"1375\"\u003e\n\u003cp data-start=\"1377\" data-end=\"1639\"\u003e\u003cstrong data-start=\"1377\" data-end=\"1441\"\u003eQ: Can the Hayward HS400FDN replace my existing pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1441\" data-end=\"1444\"\u003eA: Yes. It is designed for easier replacement in compatible systems, but installation compatibility depends on gas supply, plumbing layout, electrical setup, venting, and equipment configuration.\u003c\/p\u003e\n\u003chr data-start=\"1641\" data-end=\"1644\"\u003e\n\u003cp data-start=\"1646\" data-end=\"1875\"\u003e\u003cstrong data-start=\"1646\" data-end=\"1713\"\u003eQ: Does the Hayward HS400FDN require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1713\" data-end=\"1716\"\u003eA: Yes. Professional installation is recommended due to natural gas connections, electrical wiring, plumbing integration, venting, and local code requirements.\u003c\/p\u003e\n\u003chr data-start=\"1877\" data-end=\"1880\"\u003e\n\u003cp data-start=\"1882\" data-end=\"2046\"\u003e\u003cstrong data-start=\"1882\" data-end=\"1931\"\u003eQ: Is the Hayward HS400FDN Low NOx compliant?\u003c\/strong\u003e\u003cbr data-start=\"1931\" data-end=\"1934\"\u003eA: Yes. This heater meets Low NOx emission standards, making it suitable for regulated areas such as California.\u003c\/p\u003e\n\u003chr data-start=\"2048\" data-end=\"2051\"\u003e\n\u003cp data-start=\"2053\" data-end=\"2269\"\u003e\u003cstrong data-start=\"2053\" data-end=\"2110\"\u003eQ: What makes the Hayward HS400FDN easier to service?\u003c\/strong\u003e\u003cbr data-start=\"2110\" data-end=\"2113\"\u003eA: The front-panel-only access design allows technicians to service internal components quickly without removing multiple panels, reducing maintenance time.\u003c\/p\u003e\n\u003chr data-start=\"2271\" data-end=\"2274\"\u003e\n\u003cp data-start=\"2276\" data-end=\"2509\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2276\" data-end=\"2353\"\u003eQ: When should I choose the Hayward HS400FDN instead of a smaller heater?\u003c\/strong\u003e\u003cbr data-start=\"2353\" data-end=\"2356\"\u003eA: Choose the HS400FDN if you have a large pool, attached spa, or need maximum heating performance and faster heat-up times compared to lower BTU models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52258167357752,"sku":"HS400FDN","price":3700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Universal_H_Series_H400FD_Hero_Open_Lid_4d9b.png?v=1777769473"},{"product_id":"hayward-hs250fdn-universal-h-series-natural-gas-heater-with-omnix-250k-btu","title":"Hayward | HS250FDN | Universal H-Series Natural Gas Heater with OmniX | 250K BTU","description":"\u003cp data-start=\"174\" data-end=\"646\"\u003eHayward HS250FDN is a Universal H-Series natural gas pool and spa heater with OmniX designed for dependable heating performance, smart connectivity, and easier replacement in compatible pool and spa systems. This model is rated at 250,000 BTU\/hr and combines Hayward’s Universal Display with OmniX embedded intelligence for enhanced programmability, advanced diagnostics, and remote connectivity.\u003c\/p\u003e\n\u003cp data-start=\"648\" data-end=\"688\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"690\" data-end=\"702\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"704\" data-end=\"1937\"\u003e• Hayward HS250FDN is a Universal H-Series natural gas heater with OmniX rated at 250,000 BTU\/hr. \u003cbr data-start=\"839\" data-end=\"842\"\u003e• The OmniX platform adds enhanced programmability, advanced diagnostics, and seamless remote connectivity. \u003cbr data-start=\"987\" data-end=\"990\"\u003e• Hayward’s Universal Display is designed to provide a consistent and intuitive control experience across Omni, OmniX, and competitive automation systems. \u003cbr data-start=\"1182\" data-end=\"1185\"\u003e• The heater uses a cupro-nickel heat exchanger for strong protection against corrosion and premature failure caused by unbalanced water chemistry.\u003cbr data-start=\"1332\" data-end=\"1336\"\u003e• Totally managed water flow is designed to deliver strong hydraulic performance with fast speed-to-heat capability. \u003cbr data-start=\"1490\" data-end=\"1493\"\u003e• The universal junction box supports either left or right electrical installation for more flexible field setup. \u003cbr data-start=\"1644\" data-end=\"1647\"\u003e• Front-panel-only access is designed to simplify service and maintenance without requiring front-and-back panel access. \u003cbr data-start=\"1805\" data-end=\"1808\"\u003e• The heater supports OmniX app control and can also communicate with Hayward Omni automation through a 3-wire smart connection.\u003c\/p\u003e\n\u003cp data-start=\"1939\" data-end=\"1979\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"1981\" data-end=\"1997\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1999\" data-end=\"2632\"\u003eThe Hayward HS250FDN Universal H-Series Natural Gas Heater with OmniX is built for pool owners and service professionals who want efficient 250K BTU heating performance with a more modern control platform. As part of the updated H-Series OmniX lineup, this model combines Hayward’s proven Universal H-Series heater design with a newer display and control approach that improves usability, diagnostics, and connected control options. It is especially well suited for pool and spa installations where dependable heating, easier retrofit potential, and smarter operation are important priorities.\u003c\/p\u003e\n\u003cp data-start=\"2634\" data-end=\"3199\"\u003eWhat makes this model especially appealing is the combination of heater performance and control flexibility. The dealer announcement highlights drop-in replacement compatibility, cupro-nickel durability, front-panel service access, and embedded OmniX intelligence, while the owner’s manual shows support for standalone control, OmniX app control, traditional remote control, and Hayward Omni automation integration. For buyers looking for a premium 250,000 BTU natural gas heater with smart control capability, the HS250FDN is a strong and current H-Series option.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"318\"\u003e\u003cstrong data-start=\"79\" data-end=\"150\"\u003eQ: What is the Hayward HS250FDN Universal H-Series heater used for?\u003c\/strong\u003e\u003cbr data-start=\"150\" data-end=\"153\"\u003eA: The Hayward HS250FDN is a 250,000 BTU natural gas pool and spa heater designed for residential applications that need reliable heating and smart control features.\u003c\/p\u003e\n\u003chr data-start=\"320\" data-end=\"323\"\u003e\n\u003cp data-start=\"325\" data-end=\"542\"\u003e\u003cstrong data-start=\"325\" data-end=\"380\"\u003eQ: What size pool is the Hayward HS250FDN best for?\u003c\/strong\u003e\u003cbr data-start=\"380\" data-end=\"383\"\u003eA: This 250K BTU heater is best for small to medium-sized pools, spas, and pool\/spa combinations that require efficient heating and steady temperature control.\u003c\/p\u003e\n\u003chr data-start=\"544\" data-end=\"547\"\u003e\n\u003cp data-start=\"549\" data-end=\"734\"\u003e\u003cstrong data-start=\"549\" data-end=\"589\"\u003eQ: Is the Hayward HS250FDN worth it?\u003c\/strong\u003e\u003cbr data-start=\"589\" data-end=\"592\"\u003eA: Yes. It is a strong option for homeowners who want dependable heating performance combined with modern OmniX smart control and diagnostics.\u003c\/p\u003e\n\u003chr data-start=\"736\" data-end=\"739\"\u003e\n\u003cp data-start=\"741\" data-end=\"968\"\u003e\u003cstrong data-start=\"741\" data-end=\"786\"\u003eQ: What is OmniX on the Hayward HS250FDN?\u003c\/strong\u003e\u003cbr data-start=\"786\" data-end=\"789\"\u003eA: OmniX is Hayward’s embedded smart control system that provides advanced programming, diagnostics, and remote connectivity through compatible mobile apps and automation systems.\u003c\/p\u003e\n\u003chr data-start=\"970\" data-end=\"973\"\u003e\n\u003cp data-start=\"975\" data-end=\"1170\"\u003e\u003cstrong data-start=\"975\" data-end=\"1031\"\u003eQ: Can I control the Hayward HS250FDN from my phone?\u003c\/strong\u003e\u003cbr data-start=\"1031\" data-end=\"1034\"\u003eA: Yes. The OmniX platform allows remote monitoring, scheduling, and temperature adjustments through Hayward’s connected control system.\u003c\/p\u003e\n\u003chr data-start=\"1172\" data-end=\"1175\"\u003e\n\u003cp data-start=\"1177\" data-end=\"1393\"\u003e\u003cstrong data-start=\"1177\" data-end=\"1237\"\u003eQ: Is the Hayward HS250FDN suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1237\" data-end=\"1240\"\u003eA: Yes. The cupro-nickel heat exchanger offers strong resistance to corrosion, making it suitable for saltwater and chemically treated pool environments.\u003c\/p\u003e\n\u003chr data-start=\"1395\" data-end=\"1398\"\u003e\n\u003cp data-start=\"1400\" data-end=\"1637\"\u003e\u003cstrong data-start=\"1400\" data-end=\"1464\"\u003eQ: Can the Hayward HS250FDN replace my existing pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1464\" data-end=\"1467\"\u003eA: Yes. It is designed for easier replacement in compatible systems, but installation compatibility depends on gas supply, plumbing layout, electrical setup, and venting.\u003c\/p\u003e\n\u003chr data-start=\"1639\" data-end=\"1642\"\u003e\n\u003cp data-start=\"1644\" data-end=\"1856\"\u003e\u003cstrong data-start=\"1644\" data-end=\"1711\"\u003eQ: Does the Hayward HS250FDN require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1711\" data-end=\"1714\"\u003eA: Yes. Professional installation is recommended due to natural gas connections, electrical wiring, plumbing integration, and code compliance.\u003c\/p\u003e\n\u003chr data-start=\"1858\" data-end=\"1861\"\u003e\n\u003cp data-start=\"1863\" data-end=\"2027\"\u003e\u003cstrong data-start=\"1863\" data-end=\"1912\"\u003eQ: Is the Hayward HS250FDN Low NOx compliant?\u003c\/strong\u003e\u003cbr data-start=\"1912\" data-end=\"1915\"\u003eA: Yes. This heater meets Low NOx emission standards, making it suitable for regulated areas such as California.\u003c\/p\u003e\n\u003chr data-start=\"2029\" data-end=\"2032\"\u003e\n\u003cp data-start=\"2034\" data-end=\"2242\"\u003e\u003cstrong data-start=\"2034\" data-end=\"2091\"\u003eQ: What makes the Hayward HS250FDN easier to service?\u003c\/strong\u003e\u003cbr data-start=\"2091\" data-end=\"2094\"\u003eA: The front-panel-only access design allows technicians to service internal components without removing multiple panels, reducing maintenance time.\u003c\/p\u003e\n\u003chr data-start=\"2244\" data-end=\"2247\"\u003e\n\u003cp data-start=\"2249\" data-end=\"2492\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2249\" data-end=\"2325\"\u003eQ: When should I choose the Hayward HS250FDN instead of a larger heater?\u003c\/strong\u003e\u003cbr data-start=\"2325\" data-end=\"2328\"\u003eA: Choose the HS250FDN if you have a smaller or medium-sized pool and want efficient heating without oversizing, while still benefiting from smart control features.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52258227585336,"sku":"HS250FDN","price":3200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/Universal_H_Series_H400FD_Hero_Open_Lid_4d9b.png?v=1777769473"},{"product_id":"hayward-hdfs400-universal-hc-series-dual-fuel-heater-with-omnix-400k-btu","title":"Hayward | HDFS400 | Universal HC Series Dual Fuel Heater with OmniX | 400K BTU","description":"\u003cp data-start=\"172\" data-end=\"707\"\u003eHayward HDFS400 is a Universal HC Series dual fuel pool and spa heater with OmniX designed for compact installation, dependable heating performance, and smart connected control. This model is rated at 400,000 BTU\/hr and is engineered for easy drop-in replacement with direct compatibility to Hayward plumbing adapters. It combines Hayward’s Universal Display with OmniX embedded intelligence for enhanced programmability, diagnostics, and remote connectivity.\u003c\/p\u003e\n\u003cp data-start=\"709\" data-end=\"749\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"751\" data-end=\"763\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"765\" data-end=\"2060\"\u003e• Hayward HDFS400 is a Universal HC Series dual fuel heater with OmniX rated at 400,000 BTU\/hr. \u003cbr data-start=\"898\" data-end=\"901\"\u003e• The Universal HC Series is described as Hayward’s smallest-footprint heater platform for tighter equipment pad installations. \u003cbr data-start=\"1066\" data-end=\"1069\"\u003e• OmniX embedded intelligence provides enhanced programmability, advanced diagnostics, and seamless remote connectivity. \u003cbr data-start=\"1227\" data-end=\"1230\"\u003e• A cupro-nickel heat exchanger is used for long-term durability and protection against corrosion from challenging water chemistry.\u003cbr data-start=\"1361\" data-end=\"1365\"\u003e• The top-access design eliminates the need to remove side panels and is intended to simplify service access. \u003cbr data-start=\"1512\" data-end=\"1515\"\u003e• The quick-access reversible top allows plumbing orientation changes from right to left while also providing access to the gas shutoff and voltage selection through a single fastener.\u003cbr data-start=\"1699\" data-end=\"1703\"\u003e• The unit is dual fuel and supports in-field propane conversion, with the manual stating HDFS heaters ship ready for natural gas and include propane conversion components in the consumer kit.\u003cbr data-start=\"1895\" data-end=\"1899\"\u003e• The compact zero-clearance design and integral tie-down connections in the base are intended to make installation easier and more secure on the equipment pad.\u003c\/p\u003e\n\u003cp data-start=\"2062\" data-end=\"2102\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"2104\" data-end=\"2120\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2122\" data-end=\"2718\"\u003eThe Hayward HDFS400 Universal HC Series Dual Fuel Heater with OmniX is built for pool owners and service professionals who want strong 400K BTU heating performance in a more compact equipment-pad footprint. Hayward’s dealer sheet highlights the HC platform as the industry’s smallest footprint heater, while the owner’s manual confirms the HDFS400 specification and shows the compact cabinet layout, reversible water connection design, and integrated control platform. That makes this model especially attractive for replacement jobs or tighter pad layouts where space and service access matter.\u003c\/p\u003e\n\u003cp data-start=\"2720\" data-end=\"3233\"\u003eWhat makes this heater especially appealing is the blend of install flexibility and smart control. The dealer announcement notes the top-access design, easy in-field gas conversion, and OmniX connectivity, while the manual details support for standalone control, OmniX app control, 2-wire and 3-wire remote control, and Hayward Omni smart automation connection. For buyers looking for a 400,000 BTU compact dual fuel heater with modern controls, the HDFS400 is a strong current option in the Universal HC lineup.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"337\"\u003e\u003cstrong data-start=\"79\" data-end=\"150\"\u003eQ: What is the Hayward HDFS400 Universal HC Series heater used for?\u003c\/strong\u003e\u003cbr data-start=\"150\" data-end=\"153\"\u003eA: The Hayward HDFS400 is a 400,000 BTU pool and spa heater designed for residential and commercial applications that require powerful heating, compact installation, and smart control.\u003c\/p\u003e\n\u003chr data-start=\"339\" data-end=\"342\"\u003e\n\u003cp data-start=\"344\" data-end=\"529\"\u003e\u003cstrong data-start=\"344\" data-end=\"401\"\u003eQ: What does “dual fuel” mean on the Hayward HDFS400?\u003c\/strong\u003e\u003cbr data-start=\"401\" data-end=\"404\"\u003eA: Dual fuel means the heater can operate on natural gas or be converted to propane using the included conversion components.\u003c\/p\u003e\n\u003chr data-start=\"531\" data-end=\"534\"\u003e\n\u003cp data-start=\"536\" data-end=\"747\"\u003e\u003cstrong data-start=\"536\" data-end=\"590\"\u003eQ: What size pool is the Hayward HDFS400 best for?\u003c\/strong\u003e\u003cbr data-start=\"590\" data-end=\"593\"\u003eA: This 400K BTU heater is best for large pools, commercial pools, and pool\/spa combinations that require fast heat-up and consistent temperature control.\u003c\/p\u003e\n\u003chr data-start=\"749\" data-end=\"752\"\u003e\n\u003cp data-start=\"754\" data-end=\"930\"\u003e\u003cstrong data-start=\"754\" data-end=\"793\"\u003eQ: Is the Hayward HDFS400 worth it?\u003c\/strong\u003e\u003cbr data-start=\"793\" data-end=\"796\"\u003eA: Yes. It is a premium heater offering high output, compact design, dual fuel flexibility, and advanced OmniX smart control features.\u003c\/p\u003e\n\u003chr data-start=\"932\" data-end=\"935\"\u003e\n\u003cp data-start=\"937\" data-end=\"1151\"\u003e\u003cstrong data-start=\"937\" data-end=\"981\"\u003eQ: What is OmniX on the Hayward HDFS400?\u003c\/strong\u003e\u003cbr data-start=\"981\" data-end=\"984\"\u003eA: OmniX is Hayward’s built-in smart control system that allows advanced programming, diagnostics, and remote operation through compatible apps and automation systems.\u003c\/p\u003e\n\u003chr data-start=\"1153\" data-end=\"1156\"\u003e\n\u003cp data-start=\"1158\" data-end=\"1343\"\u003e\u003cstrong data-start=\"1158\" data-end=\"1213\"\u003eQ: Can I control the Hayward HDFS400 from my phone?\u003c\/strong\u003e\u003cbr data-start=\"1213\" data-end=\"1216\"\u003eA: Yes. With OmniX connectivity, the heater can be monitored and controlled remotely using Hayward’s smart automation platform.\u003c\/p\u003e\n\u003chr data-start=\"1345\" data-end=\"1348\"\u003e\n\u003cp data-start=\"1350\" data-end=\"1555\"\u003e\u003cstrong data-start=\"1350\" data-end=\"1409\"\u003eQ: Is the Hayward HDFS400 suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1409\" data-end=\"1412\"\u003eA: Yes. The cupro-nickel heat exchanger provides strong resistance to corrosion, making it suitable for saltwater and chemically treated pools.\u003c\/p\u003e\n\u003chr data-start=\"1557\" data-end=\"1560\"\u003e\n\u003cp data-start=\"1562\" data-end=\"1787\"\u003e\u003cstrong data-start=\"1562\" data-end=\"1625\"\u003eQ: Can the Hayward HDFS400 replace my existing pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1625\" data-end=\"1628\"\u003eA: Yes. It is designed as a drop-in replacement with a compact footprint and compatibility with existing Hayward plumbing adapters, making installation easier.\u003c\/p\u003e\n\u003chr data-start=\"1789\" data-end=\"1792\"\u003e\n\u003cp data-start=\"1794\" data-end=\"2004\"\u003e\u003cstrong data-start=\"1794\" data-end=\"1860\"\u003eQ: Does the Hayward HDFS400 require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1860\" data-end=\"1863\"\u003eA: Yes. Professional installation is recommended due to gas setup, electrical connections, plumbing, venting, and configuration requirements.\u003c\/p\u003e\n\u003chr data-start=\"2006\" data-end=\"2009\"\u003e\n\u003cp data-start=\"2011\" data-end=\"2253\"\u003e\u003cstrong data-start=\"2011\" data-end=\"2086\"\u003eQ: What makes the Hayward HDFS400 easier to service than other heaters?\u003c\/strong\u003e\u003cbr data-start=\"2086\" data-end=\"2089\"\u003eA: The top-access design and reversible connections allow technicians to access internal components quickly without removing side panels, reducing maintenance time.\u003c\/p\u003e\n\u003chr data-start=\"2255\" data-end=\"2258\"\u003e\n\u003cp data-start=\"2260\" data-end=\"2517\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2260\" data-end=\"2343\"\u003eQ: When should I choose the Hayward HDFS400 instead of another 400K BTU heater?\u003c\/strong\u003e\u003cbr data-start=\"2343\" data-end=\"2346\"\u003eA: Choose the HDFS400 if you need a compact heater with flexible fuel options, modern smart controls, and easier installation or replacement in tight equipment pad spaces.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52258281390392,"sku":"HDFS400","price":3800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HAY-15-0305-2_large_2bd8a21c-efc2-4d5a-9584-f82c94aa2c68.jpg?v=1777769484"},{"product_id":"hayward-hp21105t-heatpro-series-heat-pump-110-000-btu-230v-60hz-single-phase","title":"Hayward | HP21105T | HeatPro Series Heat Pump | 110,000 BTU 230V 60Hz Single Phase","description":"\u003cp data-start=\"598\" data-end=\"1007\"\u003eHayward HP21105T is a HeatPro Series in-ground pool heat pump designed for efficient, dependable water heating in residential pool applications. This 110,000 BTU heat-only model operates on 230V, 60 Hz, single phase power and is built to provide quieter operation, durable corrosion resistance, and energy-efficient performance for long-term pool temperature maintenance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1009\" data-end=\"1049\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"1051\" data-end=\"1063\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1065\" data-end=\"2378\"\u003e• Hayward HP21105T is a HeatPro Series heat pump rated at 110,000 BTU for in-ground pool heating applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1213\" data-end=\"1216\"\u003e• This model is a heat-only unit, not a heat-and-cool version. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1316\" data-end=\"1319\"\u003e• Hayward lists the electrical configuration as single phase with 60 Hz operation, and the installation literature for this HeatPro family shows 230 VAC field wiring. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1523\" data-end=\"1526\"\u003e• The HeatPro platform is promoted for energy-efficient heating and quiet operation to help maintain ideal pool temperature with lower operating costs. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1715\" data-end=\"1718\"\u003e• Hayward highlights a titanium heat exchanger for strong resistance to salt water and chemical corrosion. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1862\" data-end=\"1865\"\u003e• The HeatPro line also features Ultra Gold corrosion-resistant evaporator fin protection for improved durability, especially in coastal environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2053\" data-end=\"2056\"\u003e• Standard 2 inch by 2.5 inch CPVC union plumbing connections are noted for installation and service compatibility. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2209\" data-end=\"2212\"\u003e• Hayward’s current catalog grouping shows HP21105T as the 110,000 BTU heat-only model within the present HeatPro Series lineup. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2380\" data-end=\"2420\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"2422\" data-end=\"2438\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2440\" data-end=\"2891\"\u003eThe Hayward HP21105T HeatPro Series Heat Pump is built for pool owners and service professionals who want reliable in-ground pool heating without stepping into a heat-and-cool model. Its 110,000 BTU output positions it as a strong heating solution for maintaining comfortable pool temperatures, while Hayward’s current materials emphasize quiet performance, corrosion resistance, and energy-conscious operation. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2893\" data-end=\"3267\"\u003eWhat makes this model especially appealing is the durability-focused HeatPro design. Hayward highlights the titanium heat exchanger, Ultra Gold evaporator fin protection, and service-friendly plumbing connections as key benefits. For buyers looking for a current Hayward 110K BTU heat-only heat pump, HP21105T is the right SKU to use.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69ed3017-cb7c-83e8-99f3-dedd59fc1a7d-6\" data-testid=\"conversation-turn-152\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"bcaba048-74cb-4d65-b0c0-10dfb72e84e1\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"310\"\u003e\u003cstrong data-start=\"79\" data-end=\"142\"\u003eQ: What is the Hayward HP21105T HeatPro heat pump used for?\u003c\/strong\u003e\u003cbr data-start=\"142\" data-end=\"145\"\u003eA: The Hayward HP21105T is a 110,000 BTU heat-only pool heat pump designed to efficiently heat in-ground residential pools and maintain consistent water temperature.\u003c\/p\u003e\n\u003chr data-start=\"312\" data-end=\"315\"\u003e\n\u003cp data-start=\"317\" data-end=\"471\"\u003e\u003cstrong data-start=\"317\" data-end=\"383\"\u003eQ: Is the Hayward HP21105T a heat-only or heat-and-cool model?\u003c\/strong\u003e\u003cbr data-start=\"383\" data-end=\"386\"\u003eA: The HP21105T is a heat-only model. It is designed to heat pool water, not cool it.\u003c\/p\u003e\n\u003chr data-start=\"473\" data-end=\"476\"\u003e\n\u003cp data-start=\"478\" data-end=\"670\"\u003e\u003cstrong data-start=\"478\" data-end=\"533\"\u003eQ: What size pool is the Hayward HP21105T best for?\u003c\/strong\u003e\u003cbr data-start=\"533\" data-end=\"536\"\u003eA: This 110,000 BTU heat pump is best for small to medium in-ground pools where energy-efficient temperature maintenance is important.\u003c\/p\u003e\n\u003chr data-start=\"672\" data-end=\"675\"\u003e\n\u003cp data-start=\"677\" data-end=\"878\"\u003e\u003cstrong data-start=\"677\" data-end=\"717\"\u003eQ: Is the Hayward HP21105T worth it?\u003c\/strong\u003e\u003cbr data-start=\"717\" data-end=\"720\"\u003eA: Yes. It is a reliable and energy-efficient heat pump offering quiet operation, corrosion resistance, and long-term durability for residential pool heating.\u003c\/p\u003e\n\u003chr data-start=\"880\" data-end=\"883\"\u003e\n\u003cp data-start=\"885\" data-end=\"1062\"\u003e\u003cstrong data-start=\"885\" data-end=\"939\"\u003eQ: What voltage does the Hayward HP21105T require?\u003c\/strong\u003e\u003cbr data-start=\"939\" data-end=\"942\"\u003eA: This model operates on 230V, 60 Hz, single-phase power and should be installed on a properly sized dedicated circuit.\u003c\/p\u003e\n\u003chr data-start=\"1064\" data-end=\"1067\"\u003e\n\u003cp data-start=\"1069\" data-end=\"1300\"\u003e\u003cstrong data-start=\"1069\" data-end=\"1130\"\u003eQ: Is the Hayward HP21105T better than a gas pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1130\" data-end=\"1133\"\u003eA: It depends on your needs. A heat pump is typically more energy-efficient for maintaining temperature, while gas heaters provide faster heat-up in colder conditions.\u003c\/p\u003e\n\u003chr data-start=\"1302\" data-end=\"1305\"\u003e\n\u003cp data-start=\"1307\" data-end=\"1515\"\u003e\u003cstrong data-start=\"1307\" data-end=\"1367\"\u003eQ: Is the Hayward HP21105T suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1367\" data-end=\"1370\"\u003eA: Yes. It features a titanium heat exchanger and corrosion-resistant components designed for saltwater and chemically treated pool environments.\u003c\/p\u003e\n\u003chr data-start=\"1517\" data-end=\"1520\"\u003e\n\u003cp data-start=\"1522\" data-end=\"1731\"\u003e\u003cstrong data-start=\"1522\" data-end=\"1589\"\u003eQ: Does the Hayward HP21105T require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1589\" data-end=\"1592\"\u003eA: Yes. Professional installation is recommended to ensure proper electrical wiring, plumbing connections, water flow, and code compliance.\u003c\/p\u003e\n\u003chr data-start=\"1733\" data-end=\"1736\"\u003e\n\u003cp data-start=\"1738\" data-end=\"1991\"\u003e\u003cstrong data-start=\"1738\" data-end=\"1793\"\u003eQ: How fast will the Hayward HP21105T heat my pool?\u003c\/strong\u003e\u003cbr data-start=\"1793\" data-end=\"1796\"\u003eA: Heating speed depends on pool size, outdoor air temperature, starting water temperature, and usage conditions. Heat pumps are best for steady temperature maintenance rather than rapid heating.\u003c\/p\u003e\n\u003chr data-start=\"1993\" data-end=\"1996\"\u003e\n\u003cp data-start=\"1998\" data-end=\"2247\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1998\" data-end=\"2077\"\u003eQ: When should I choose the Hayward HP21105T instead of a larger heat pump?\u003c\/strong\u003e\u003cbr data-start=\"2077\" data-end=\"2080\"\u003eA: Choose the HP21105T if you have a smaller or medium-sized pool and want efficient heating without oversizing, helping reduce energy costs while maintaining comfort.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52258704064824,"sku":"HP21105T","price":3900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HAY-15-1032-6_medium_407c9f12-af87-4f29-9c73-2c4d0b302da1.jpg?v=1777769552"},{"product_id":"hayward-hp21405t-heatpro-mchx-series-heat-pump-140-000-btu-heat-only-240v","title":"Hayward | HP21405T | 140,000 BTU Heat Only 240V HeatPro MCHX Series Heat Pump","description":"\u003cp data-start=\"449\" data-end=\"914\"\u003eHayward HP21405T is a HeatPro MCHX Series heat pump designed for efficient in-ground pool heating with advanced microchannel heat exchanger technology. This 140,000 BTU heat-only model is built to extend swim season while helping reduce operating costs compared with traditional heating methods. Hayward’s current product page positions it as part of the newer HeatPro MCHX lineup for dependable, energy-conscious pool heating. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"916\" data-end=\"956\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"958\" data-end=\"970\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"972\" data-end=\"2259\"\u003e• Hayward HP21405T is a HeatPro MCHX Series heat-only heat pump rated at 140,000 BTU. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1095\" data-end=\"1098\"\u003e• This model is a \u003cstrong data-start=\"1116\" data-end=\"1129\"\u003eheat-only\u003c\/strong\u003e unit, not a heat-and-cool model. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1200\" data-end=\"1203\"\u003e• Hayward identifies HP21405T as part of the newer HeatPro MCHX Series lineup using microchannel heat exchanger technology. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1364\" data-end=\"1367\"\u003e• The current model is listed on 240V-class power, with retailer listings commonly showing 240V and Hayward’s official page presenting the product in the current MCHX family. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1579\" data-end=\"1582\"\u003e• Hayward’s HeatPro MCHX line is positioned for efficient pool heating performance to help lower energy and operating costs. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1744\" data-end=\"1747\"\u003e• The product is intended for in-ground pool heating applications and is sold as part of Hayward’s premium HeatPro platform. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1909\" data-end=\"1912\"\u003e• Hayward’s official page also links the unit to the current Heat Pump MCHE installation and operation manual and HeatPro literature. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2083\" data-end=\"2086\"\u003e• Current market listings and Hayward product references consistently identify HP21405T as the 140K BTU heat-only model in this series. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2261\" data-end=\"2301\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003cp data-start=\"2303\" data-end=\"2319\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2321\" data-end=\"2854\"\u003eThe Hayward HP21405T HeatPro MCHX Series Heat Pump is built for pool owners and service professionals who want higher-capacity in-ground pool heating from a current Hayward heat pump platform. With its 140,000 BTU output and heat-only configuration, it is designed for users focused on extending swim season and maintaining warmer pool temperatures without moving to a heat-and-cool model. Hayward’s current materials frame this unit around the newer MCHX platform and its microchannel design. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2856\" data-end=\"3345\"\u003eWhat makes this model especially appealing is the combination of capacity and updated platform positioning. Hayward’s official listing highlights the current HeatPro MCHX Series branding, while broader product references and retailers consistently present HP21405T as the 140K BTU heat-only option. For listing purposes, the strongest version is to identify it as a HeatPro MCHX Series heat pump rather than using a more generic HeatPro title alone.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69ed3017-cb7c-83e8-99f3-dedd59fc1a7d-5\" data-testid=\"conversation-turn-150\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"12df32b2-0afd-40e1-858f-3d643793ec82\" dir=\"auto\" data-message-model-slug=\"gpt-5-5-thinking\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"40\"\u003e────────────────────────────────────────\u003c\/p\u003e\n\u003ch2 data-section-id=\"w1c0q0\" data-start=\"42\" data-end=\"77\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cp data-start=\"79\" data-end=\"288\"\u003e\u003cstrong data-start=\"79\" data-end=\"147\"\u003eQ: What is the Hayward HP21405T HeatPro MCHX heat pump used for?\u003c\/strong\u003e\u003cbr data-start=\"147\" data-end=\"150\"\u003eA: The Hayward HP21405T is a 140,000 BTU heat-only pool heat pump designed for efficient in-ground pool heating and swim season extension.\u003c\/p\u003e\n\u003chr data-start=\"290\" data-end=\"293\"\u003e\n\u003cp data-start=\"295\" data-end=\"449\"\u003e\u003cstrong data-start=\"295\" data-end=\"361\"\u003eQ: Is the Hayward HP21405T a heat-only or heat-and-cool model?\u003c\/strong\u003e\u003cbr data-start=\"361\" data-end=\"364\"\u003eA: The HP21405T is a heat-only model. It is designed to heat pool water, not cool it.\u003c\/p\u003e\n\u003chr data-start=\"451\" data-end=\"454\"\u003e\n\u003cp data-start=\"456\" data-end=\"667\"\u003e\u003cstrong data-start=\"456\" data-end=\"511\"\u003eQ: What size pool is the Hayward HP21405T best for?\u003c\/strong\u003e\u003cbr data-start=\"511\" data-end=\"514\"\u003eA: This 140,000 BTU heat pump is best for medium to large in-ground pools where efficient temperature maintenance and extended swim season are important.\u003c\/p\u003e\n\u003chr data-start=\"669\" data-end=\"672\"\u003e\n\u003cp data-start=\"674\" data-end=\"866\"\u003e\u003cstrong data-start=\"674\" data-end=\"714\"\u003eQ: Is the Hayward HP21405T worth it?\u003c\/strong\u003e\u003cbr data-start=\"714\" data-end=\"717\"\u003eA: Yes. It is a strong option for pool owners who want a high-capacity, energy-efficient heat pump from Hayward’s current HeatPro MCHX Series lineup.\u003c\/p\u003e\n\u003chr data-start=\"868\" data-end=\"871\"\u003e\n\u003cp data-start=\"873\" data-end=\"1072\"\u003e\u003cstrong data-start=\"873\" data-end=\"927\"\u003eQ: What voltage does the Hayward HP21405T require?\u003c\/strong\u003e\u003cbr data-start=\"927\" data-end=\"930\"\u003eA: The Hayward HP21405T is commonly listed as a 240V-class heat pump and should be installed on a properly sized dedicated electrical circuit.\u003c\/p\u003e\n\u003chr data-start=\"1074\" data-end=\"1077\"\u003e\n\u003cp data-start=\"1079\" data-end=\"1304\"\u003e\u003cstrong data-start=\"1079\" data-end=\"1140\"\u003eQ: Is the Hayward HP21405T better than a gas pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1140\" data-end=\"1143\"\u003eA: It depends on your needs. A heat pump is usually more efficient for maintaining pool temperature, while a gas heater typically heats faster in colder weather.\u003c\/p\u003e\n\u003chr data-start=\"1306\" data-end=\"1309\"\u003e\n\u003cp data-start=\"1311\" data-end=\"1527\"\u003e\u003cstrong data-start=\"1311\" data-end=\"1371\"\u003eQ: Is the Hayward HP21405T suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1371\" data-end=\"1374\"\u003eA: Yes. Hayward heat pumps are designed for treated pool water systems, including chlorine and saltwater pools when proper water chemistry is maintained.\u003c\/p\u003e\n\u003chr data-start=\"1529\" data-end=\"1532\"\u003e\n\u003cp data-start=\"1534\" data-end=\"1774\"\u003e\u003cstrong data-start=\"1534\" data-end=\"1601\"\u003eQ: Does the Hayward HP21405T require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1601\" data-end=\"1604\"\u003eA: Yes. Professional installation is recommended because the unit requires proper electrical service, plumbing, water flow, equipment clearance, and code-compliant setup.\u003c\/p\u003e\n\u003chr data-start=\"1776\" data-end=\"1779\"\u003e\n\u003cp data-start=\"1781\" data-end=\"2025\"\u003e\u003cstrong data-start=\"1781\" data-end=\"1836\"\u003eQ: How fast will the Hayward HP21405T heat my pool?\u003c\/strong\u003e\u003cbr data-start=\"1836\" data-end=\"1839\"\u003eA: Heating speed depends on pool size, outdoor air temperature, starting water temperature, wind exposure, cover use, and runtime. Heat pumps are best for steady temperature maintenance.\u003c\/p\u003e\n\u003chr data-start=\"2027\" data-end=\"2030\"\u003e\n\u003cp data-start=\"2032\" data-end=\"2287\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2032\" data-end=\"2112\"\u003eQ: When should I choose the Hayward HP21405T instead of a smaller heat pump?\u003c\/strong\u003e\u003cbr data-start=\"2112\" data-end=\"2115\"\u003eA: Choose the HP21405T if you have a larger in-ground pool, want stronger heating capacity, or need more reliable temperature maintenance during cooler swim-season weather.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv aria-hidden=\"true\" class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52258726543672,"sku":"HP21405T","price":4999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HAY-15-1032-6_medium_407c9f12-af87-4f29-9c73-2c4d0b302da1.jpg?v=1777769552"}],"url":"https:\/\/appaetechpoolsupply.com\/collections\/hayward-heaters.oembed","provider":"AppaeTech Pool Supply","version":"1.0","type":"link"}