{"product_id":"hayward-hs500fdnasme-universal-h-series-in-ground-natural-gas-heater-with-omnix-500k-asme","title":"Hayward | HS500FDNASME | Universal H-Series 500K BTU Natural Gas Pool Heater | OmniX \u0026 ASME Certified","description":"\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eThe Hayward HS500FDNASME Universal H-Series is a 500,000 BTU natural gas pool and spa heater engineered for commercial and high-demand residential applications. Featuring ASME certification and integrated OmniX smart controls, this high-capacity heater delivers dependable heating performance, fast temperature recovery, and advanced system management for demanding installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e━━━━━━━━━━━━━━━━━━\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• 500,000 BTU natural gas pool and spa heater\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• ASME certified for commercial and institutional applications\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Integrated OmniX smart control platform\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Universal H-Series design for new or replacement installations\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Cupro nickel heat exchanger for enhanced corrosion resistance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Low NOx emissions for environmentally compliant operation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Compatible with pool and spa automation systems\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Ideal for commercial pools, aquatic facilities, hotels, apartments, and large residential pools\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e━━━━━━━━━━━━━━━━━━\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Hayward Universal H-Series HS500FDNASME is built to provide powerful, energy-efficient heating for commercial pools, therapy pools, spas, and large residential installations. Its 500,000 BTU output delivers rapid heat-up times while maintaining consistent water temperatures under heavy demand.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDesigned with an ASME-certified pressure vessel, this heater meets the requirements of many commercial and public pool installations. The integrated OmniX control platform provides advanced diagnostics, system monitoring, and simplified operation, while the durable cupro nickel heat exchanger helps resist corrosion in demanding water conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether installed as part of a new construction project or replacing an existing commercial heater, the HS500FDNASME offers reliable performance, efficient operation, and long-term durability. Professional installation is recommended to ensure proper gas supply, ventilation, plumbing, electrical connections, and compliance with all applicable local codes.\u003c\/span\u003e\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52636925821240,"sku":null,"price":7999.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/6319\/9544\/files\/HAY-15-0291-1_medium_5c3c97ca-cda7-4e7c-b319-30cfd1e35027.jpg?v=1783958638","url":"https:\/\/appaetechpoolsupply.com\/products\/hayward-hs500fdnasme-universal-h-series-in-ground-natural-gas-heater-with-omnix-500k-asme","provider":"AppaeTech Pool Supply","version":"1.0","type":"link"}