{"product_id":"hayward-universal-hc-series-dual-fuel-400k-btu-heater","title":"Hayward | HDF400 | Hayward HDF400 Universal HC Series Dual-Fuel 400K BTU Pool \u0026 Spa Heater – Compact, Energy-Efficient, Low NOx","description":"\u003cp data-start=\"328\" data-end=\"425\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eUpgrade your pool or spa with the Hayward HDF400 Universal HC Series Heater. Offering 400,000 BTU heating capacity, dual-fuel compatibility (natural gas or propane), and a compact design, it ensures rapid heating and efficient operation.\u003c\/span\u003e\u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"427\" data-end=\"430\"\u003e\n\u003cp data-start=\"432\" data-end=\"455\"\u003e\u003cstrong data-start=\"432\" data-end=\"455\"\u003eProduct Highlights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"457\" data-end=\"1496\"\u003e\n\u003cli data-start=\"457\" data-end=\"604\"\u003e\n\u003cp data-start=\"459\" data-end=\"604\"\u003e\u003cstrong data-start=\"459\" data-end=\"485\"\u003eDual-Fuel Flexibility:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eEasily converts between natural gas and propane with a simple mixing orifice change.\u003c\/span\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"606\" data-end=\"753\"\u003e\n\u003cp data-start=\"608\" data-end=\"753\"\u003e\u003cstrong data-start=\"608\" data-end=\"634\"\u003eHigh Heating Capacity:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eDelivers 400,000 BTUs per hour, efficiently heating large pools and spas.\u003c\/span\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"755\" data-end=\"895\"\u003e\n\u003cp data-start=\"757\" data-end=\"895\"\u003e\u003cstrong data-start=\"757\" data-end=\"776\"\u003eCompact 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\"\u003eFeatures the industry's smallest footprint and zero wall clearance design for tight equipment pads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"897\" data-end=\"1045\"\u003e\n\u003cp data-start=\"899\" data-end=\"1045\"\u003e\u003cstrong data-start=\"899\" data-end=\"926\"\u003eDurable 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\"\u003eStandard cupro-nickel construction resists corrosion and wear for long-lasting reliability.\u003c\/span\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1047\" data-end=\"1190\"\u003e\n\u003cp data-start=\"1049\" data-end=\"1190\"\u003e\u003cstrong data-start=\"1049\" data-end=\"1071\"\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 clean air quality standards, making it eco-friendly and regulatory compliant.\u003c\/span\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1192\" data-end=\"1341\"\u003e\n\u003cp data-start=\"1194\" data-end=\"1341\"\u003e\u003cstrong data-start=\"1194\" data-end=\"1222\"\u003eUser-Friendly Interface:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eIntuitive digital thermostat provides precise temperature control and diagnostics for easy operation.\u003c\/span\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1343\" data-end=\"1496\"\u003e\n\u003cp data-start=\"1345\" data-end=\"1496\"\u003e\u003cstrong data-start=\"1345\" data-end=\"1377\"\u003eInstaller-Friendly Features:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eQuick-access reversible top and exclusive plumbing adapters allow easy setup without cutting pipes.\u003c\/span\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1498\" data-end=\"1501\"\u003e\n\u003cp data-start=\"1503\" data-end=\"1522\"\u003e\u003cstrong data-start=\"1503\" data-end=\"1522\"\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1524\" data-end=\"2358\"\u003e\n\u003cli data-start=\"1524\" data-end=\"1615\"\u003e\n\u003cp data-start=\"1526\" data-end=\"1615\"\u003e\u003cstrong data-start=\"1526\" data-end=\"1536\"\u003eModel:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eHayward Universal HC Series 400K BTU Heater (Dual-Fuel)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1617\" data-end=\"1715\"\u003e\n\u003cp data-start=\"1619\" data-end=\"1715\"\u003e\u003cstrong data-start=\"1619\" data-end=\"1636\"\u003eFuel Options:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eNatural Gas or Propane\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1717\" data-end=\"1814\"\u003e\n\u003cp data-start=\"1719\" data-end=\"1814\"\u003e\u003cstrong data-start=\"1719\" data-end=\"1735\"\u003eHeat Output:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e400,000 BTU\/hr\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1717\" data-end=\"1814\"\u003e\n\u003cp data-start=\"1719\" data-end=\"1814\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e\u003c\/span\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003ca href=\"https:\/\/www.epoolsupply.com\/products\/hayward-universal-hc-series-400k-btu-heater-dual-fuel-hdf400?utm_source=chatgpt.com\" rel=\"noopener\" class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[0.5625em] font-medium text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]! transition-colors duration-150 ease-in-out\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between absolute\"\u003e\u003cspan class=\"max-w-full grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003cstrong data-start=\"1818\" data-end=\"1841\"\u003eThermal Efficiency:\u003c\/strong\u003e 83%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1886\" data-end=\"1979\"\u003e\n\u003cp data-start=\"1888\" data-end=\"1979\"\u003e\u003cstrong data-start=\"1888\" data-end=\"1900\"\u003eVoltage:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e120V\/240V (field-configurable dual voltage)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1981\" data-end=\"2075\"\u003e\n\u003cp data-start=\"1983\" data-end=\"2075\"\u003e\u003cstrong data-start=\"1983\" data-end=\"1996\"\u003eAmperage:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e4A at 120V; 2A at 240V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2077\" data-end=\"2173\"\u003e\n\u003cp data-start=\"2079\" data-end=\"2173\"\u003e\u003cstrong data-start=\"2079\" data-end=\"2094\"\u003eDimensions:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e24\" H x 18\" W x 30\" D\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2175\" data-end=\"2267\"\u003e\n\u003cp data-start=\"2177\" data-end=\"2267\"\u003e\u003cstrong data-start=\"2177\" data-end=\"2188\"\u003eWeight:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e170 lbs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2269\" data-end=\"2358\"\u003e\n\u003cp data-start=\"2271\" data-end=\"2358\"\u003e\u003cstrong data-start=\"2271\" data-end=\"2279\"\u003eUPC:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003e0610377402835\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2360\" data-end=\"2363\"\u003e\n\u003cp data-start=\"2365\" data-end=\"2379\"\u003e\u003cstrong data-start=\"2365\" data-end=\"2379\"\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2381\" data-end=\"2711\"\u003e\n\u003cli data-start=\"2381\" data-end=\"2491\"\u003e\n\u003cp data-start=\"2383\" data-end=\"2491\"\u003e\u003cstrong data-start=\"2383\" data-end=\"2412\"\u003eResidential Pools \u0026amp; Spas:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eEfficiently heats in-ground pools and spas.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2493\" data-end=\"2604\"\u003e\n\u003cp data-start=\"2495\" data-end=\"2604\"\u003e\u003cstrong data-start=\"2495\" data-end=\"2525\"\u003eReplacement Installations:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eCompact design fits into existing equipment pads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2606\" data-end=\"2711\"\u003e\n\u003cp data-start=\"2608\" data-end=\"2711\"\u003e\u003cstrong data-start=\"2608\" data-end=\"2632\"\u003eEco-Conscious Users:\u003c\/strong\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eLow NOx emissions meet air quality standards.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2713\" data-end=\"2716\"\u003e\n\u003cp data-start=\"2718\" data-end=\"2796\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eThe Hayward HDF400 Universal HC Series Heater combines advanced technology, energy efficiency, and user-friendly features to provide reliable heating solutions for your pool or spa.\u003c\/span\u003e\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48967938801976,"sku":"HDF400","price":3999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/ProductImage_2.png?v=1777756069","url":"https:\/\/appaetechpoolsupply.com\/products\/hayward-universal-hc-series-dual-fuel-400k-btu-heater","provider":"AppaeTech Pool Supply","version":"1.0","type":"link"}