{"product_id":"pentair-mastertemp-400-heater-propane-gas-129-lbs-400k-btu-120-240-vac-460737","title":"Pentair | 460737 | 400K BTU MasterTemp  Propane Gas Pool Heater – High Performance, 120\/240V","description":"\u003cdiv class=\"page-title-wrapper product\"\u003e\n\u003cp data-start=\"245\" data-end=\"449\"\u003eThe Pentair 460737 MasterTemp 400K BTU Propane Gas Pool Heater offers powerful, energy-efficient heating for large pools and spas. Compact, 129 lb design with 120\/240V compatibility.\u003c\/p\u003e\n\u003chr data-start=\"451\" data-end=\"454\"\u003e\n\u003cp data-start=\"456\" data-end=\"472\"\u003e\u003cstrong data-start=\"456\" data-end=\"472\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"474\" data-end=\"1121\"\u003e\n\u003cli data-start=\"474\" data-end=\"590\"\u003e\n\u003cp data-start=\"476\" data-end=\"590\"\u003e\u003cstrong data-start=\"476\" data-end=\"508\"\u003e400,000 BTU Heating Capacity\u003c\/strong\u003e – Designed for fast, efficient heating of large residential or commercial pools\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"591\" data-end=\"669\"\u003e\n\u003cp data-start=\"593\" data-end=\"669\"\u003e\u003cstrong data-start=\"593\" data-end=\"618\"\u003ePropane Gas Operation\u003c\/strong\u003e – Ideal for locations without natural gas access\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"670\" data-end=\"761\"\u003e\n\u003cp data-start=\"672\" data-end=\"761\"\u003e\u003cstrong data-start=\"672\" data-end=\"697\"\u003e120\/240V Dual Voltage\u003c\/strong\u003e – Flexible electrical compatibility for various installations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"762\" data-end=\"842\"\u003e\n\u003cp data-start=\"764\" data-end=\"842\"\u003e\u003cstrong data-start=\"764\" data-end=\"789\"\u003eCompact 129 lb Design\u003c\/strong\u003e – Space-saving footprint with powerful performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"843\" data-end=\"939\"\u003e\n\u003cp data-start=\"845\" data-end=\"939\"\u003e\u003cstrong data-start=\"845\" data-end=\"877\"\u003eEnergy-Efficient Performance\u003c\/strong\u003e – Reduces fuel consumption without compromising heat output\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"940\" data-end=\"1031\"\u003e\n\u003cp data-start=\"942\" data-end=\"1031\"\u003e\u003cstrong data-start=\"942\" data-end=\"967\"\u003eDigital Control Panel\u003c\/strong\u003e – Provides precise temperature control and system diagnostics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1032\" data-end=\"1121\"\u003e\n\u003cp data-start=\"1034\" data-end=\"1121\"\u003e\u003cstrong data-start=\"1034\" data-end=\"1067\"\u003eDurable and Weather-Resistant\u003c\/strong\u003e – Built to perform reliably in outdoor environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1123\" data-end=\"1126\"\u003e\n\u003cp data-start=\"1128\" data-end=\"1148\"\u003e\u003cstrong data-start=\"1128\" data-end=\"1148\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1150\" data-end=\"1488\"\u003eThe Pentair 460737 MasterTemp 400K BTU Propane Gas Pool Heater delivers high-performance heating for large pools and spas, making it an excellent choice for residential or commercial applications. Its 400,000 BTU output ensures rapid heat-up and stable temperature maintenance, ideal for extending swim seasons or maintaining spa comfort.\u003c\/p\u003e\n\u003cp data-start=\"1490\" data-end=\"1762\"\u003eThis model operates on propane gas, making it suitable for properties without natural gas service. Its dual voltage (120\/240V) capability ensures flexibility during installation, and the compact 129-pound design fits well in most equipment areas without sacrificing power.\u003c\/p\u003e\n\u003cp data-start=\"1764\" data-end=\"2030\"\u003eEngineered for energy efficiency, the MasterTemp 460737 helps reduce operational costs while delivering consistent, reliable performance. The intuitive digital control panel allows for easy temperature adjustments and built-in diagnostics for simplified maintenance.\u003c\/p\u003e\n\u003cp data-start=\"2032\" data-end=\"2194\"\u003eTrusted for its durability, efficiency, and powerful output, the Pentair 460737 MasterTemp is a top-tier heating solution for demanding pool and spa environments.\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-43\" data-testid=\"conversation-turn-226\" 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=\"652b1b33-7b72-463c-9db8-f200710367b3\" 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=\"291\"\u003e\u003cstrong data-start=\"79\" data-end=\"140\"\u003eQ: What is the Pentair 460737 MasterTemp heater used for?\u003c\/strong\u003e\u003cbr data-start=\"140\" data-end=\"143\"\u003eA: The Pentair 460737 is a 400,000 BTU propane pool and spa heater designed for large residential pools, spas, and high-demand heating applications.\u003c\/p\u003e\n\u003chr data-start=\"293\" data-end=\"296\"\u003e\n\u003cp data-start=\"298\" data-end=\"468\"\u003e\u003cstrong data-start=\"298\" data-end=\"350\"\u003eQ: Is the Pentair 460737 propane or natural gas?\u003c\/strong\u003e\u003cbr data-start=\"350\" data-end=\"353\"\u003eA: This model is designed for propane gas. Natural gas versions are available under different Pentair part numbers.\u003c\/p\u003e\n\u003chr data-start=\"470\" data-end=\"473\"\u003e\n\u003cp data-start=\"475\" data-end=\"679\"\u003e\u003cstrong data-start=\"475\" data-end=\"528\"\u003eQ: What size pool is the Pentair 460737 best for?\u003c\/strong\u003e\u003cbr data-start=\"528\" data-end=\"531\"\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=\"681\" data-end=\"684\"\u003e\n\u003cp data-start=\"686\" data-end=\"892\"\u003e\u003cstrong data-start=\"686\" data-end=\"735\"\u003eQ: Is the Pentair 460737 MasterTemp worth it?\u003c\/strong\u003e\u003cbr data-start=\"735\" data-end=\"738\"\u003eA: Yes. It is a strong option for pool owners who need high BTU propane heating, compact installation, digital controls, and energy-efficient performance.\u003c\/p\u003e\n\u003chr data-start=\"894\" data-end=\"897\"\u003e\n\u003cp data-start=\"899\" data-end=\"1064\"\u003e\u003cstrong data-start=\"899\" data-end=\"951\"\u003eQ: What voltage does the Pentair 460737 require?\u003c\/strong\u003e\u003cbr data-start=\"951\" data-end=\"954\"\u003eA: This heater supports 120V or 240V operation, giving installers flexibility for different electrical setups.\u003c\/p\u003e\n\u003chr data-start=\"1066\" data-end=\"1069\"\u003e\n\u003cp data-start=\"1071\" data-end=\"1310\"\u003e\u003cstrong data-start=\"1071\" data-end=\"1133\"\u003eQ: Can the Pentair 460737 replace my existing pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1133\" data-end=\"1136\"\u003eA: Yes. It can replace many existing propane pool heaters, but compatibility depends on gas supply, plumbing layout, electrical setup, venting, and installation requirements.\u003c\/p\u003e\n\u003chr data-start=\"1312\" data-end=\"1315\"\u003e\n\u003cp data-start=\"1317\" data-end=\"1539\"\u003e\u003cstrong data-start=\"1317\" data-end=\"1382\"\u003eQ: Does the Pentair 460737 require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1382\" data-end=\"1385\"\u003eA: Yes. Professional installation is recommended due to propane gas sizing, plumbing connections, electrical wiring, venting, and local code requirements.\u003c\/p\u003e\n\u003chr data-start=\"1541\" data-end=\"1544\"\u003e\n\u003cp data-start=\"1546\" data-end=\"1751\"\u003e\u003cstrong data-start=\"1546\" data-end=\"1613\"\u003eQ: Can the Pentair 460737 be used with pool automation systems?\u003c\/strong\u003e\u003cbr data-start=\"1613\" data-end=\"1616\"\u003eA: Yes. The digital control system can work with many compatible pool automation systems for temperature control and system monitoring.\u003c\/p\u003e\n\u003chr data-start=\"1753\" data-end=\"1756\"\u003e\n\u003cp data-start=\"1758\" data-end=\"1920\"\u003e\u003cstrong data-start=\"1758\" data-end=\"1804\"\u003eQ: Is the Pentair 460737 energy efficient?\u003c\/strong\u003e\u003cbr data-start=\"1804\" data-end=\"1807\"\u003eA: Yes. The MasterTemp platform is designed for efficient heating performance while helping manage propane usage.\u003c\/p\u003e\n\u003chr data-start=\"1922\" data-end=\"1925\"\u003e\n\u003cp data-start=\"1927\" data-end=\"2129\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1927\" data-end=\"2002\"\u003eQ: When should I choose the Pentair 460737 instead of a smaller heater?\u003c\/strong\u003e\u003cbr data-start=\"2002\" data-end=\"2005\"\u003eA: Choose this 400K BTU model if you have a large pool, attached spa, or need faster heat-up than lower 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\n\u003c\/div\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":44123084062763,"sku":"460737","price":3799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/1589\/7131\/files\/mastertemp.png?v=1779704041","url":"https:\/\/auremontdirect.com\/products\/pentair-mastertemp-400-heater-propane-gas-129-lbs-400k-btu-120-240-vac-460737","provider":"Auremont Direct","version":"1.0","type":"link"}