{"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":44123079639083,"sku":"W3HS135FDP","price":2699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/1589\/7131\/files\/Universal_H_Series_H135_H150_Front_Top_f1ea576d-a779-464a-8496-0e7659514614.png?v=1779703881","url":"https:\/\/auremontdirect.com\/products\/hayward-w3hs135fdp-universal-h-series-above-ground-liquid-propane-heater-with-omnix-135k-btu","provider":"Auremont Direct","version":"1.0","type":"link"}