{"product_id":"pentair-mastertemp-400k-btu-pool-heater-natural-gas-low-nox","title":"Pentair | 460772 | MasterTemp 250K BTU ASME Pool Heater, Propane Gas, Low NOx, High Performance","description":"\u003cp data-start=\"252\" data-end=\"494\"\u003eThe Pentair 460772 MasterTemp ASME Pool Heater delivers 250,000 BTU of high-performance propane heating for inground pools. ASME-certified and Low NOx compliant, it’s built for commercial-grade efficiency and durability.\u003c\/p\u003e\n\u003chr data-start=\"496\" data-end=\"499\"\u003e\n\u003cp data-start=\"501\" data-end=\"517\"\u003e\u003cstrong data-start=\"501\" data-end=\"517\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"519\" data-end=\"1183\"\u003e\n\u003cli data-start=\"519\" data-end=\"616\"\u003e\n\u003cp data-start=\"521\" data-end=\"616\"\u003e\u003cstrong data-start=\"521\" data-end=\"550\"\u003e250,000 BTU Heating Power\u003c\/strong\u003e – Rapid and reliable heat-up for medium to large inground pools\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"617\" data-end=\"704\"\u003e\n\u003cp data-start=\"619\" data-end=\"704\"\u003e\u003cstrong data-start=\"619\" data-end=\"637\"\u003eASME Certified\u003c\/strong\u003e – Built to meet commercial-grade durability and safety standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"705\" data-end=\"795\"\u003e\n\u003cp data-start=\"707\" data-end=\"795\"\u003e\u003cstrong data-start=\"707\" data-end=\"732\"\u003ePropane Gas Operation\u003c\/strong\u003e – Efficient fuel choice for areas without natural gas access\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"796\" data-end=\"898\"\u003e\n\u003cp data-start=\"798\" data-end=\"898\"\u003e\u003cstrong data-start=\"798\" data-end=\"819\"\u003eLow NOx Emissions\u003c\/strong\u003e – Environmentally responsible design that meets strict air quality standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"899\" data-end=\"994\"\u003e\n\u003cp data-start=\"901\" data-end=\"994\"\u003e\u003cstrong data-start=\"901\" data-end=\"932\"\u003eCompact, Lightweight Design\u003c\/strong\u003e – Fits in tight equipment pads and offers easy installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"995\" data-end=\"1090\"\u003e\n\u003cp data-start=\"997\" data-end=\"1090\"\u003e\u003cstrong data-start=\"997\" data-end=\"1028\"\u003eCupro-Nickel Heat Exchanger\u003c\/strong\u003e – Withstands harsh water conditions for longer service life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1091\" data-end=\"1183\"\u003e\n\u003cp data-start=\"1093\" data-end=\"1183\"\u003e\u003cstrong data-start=\"1093\" data-end=\"1123\"\u003eDigital Display \u0026amp; Controls\u003c\/strong\u003e – Simple, accurate temperature management and diagnostics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1185\" data-end=\"1188\"\u003e\n\u003cp data-start=\"1190\" data-end=\"1210\"\u003e\u003cstrong data-start=\"1190\" data-end=\"1210\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1212\" data-end=\"1570\"\u003eThe Pentair 460772 MasterTemp ASME Pool Heater provides powerful, efficient heating in a compact, user-friendly package designed for inground pool applications. With 250,000 BTU of heating output and ASME certification, it's an ideal solution for commercial properties or residential pools requiring high-performance equipment that meets regulated standards.\u003c\/p\u003e\n\u003cp data-start=\"1572\" data-end=\"1804\"\u003eFueled by propane gas, this model is perfect for installations without natural gas service. Its Low NOx design ensures compliance with strict emissions regulations, making it a more environmentally friendly choice for your facility.\u003c\/p\u003e\n\u003cp data-start=\"1806\" data-end=\"2137\"\u003eConstructed with a cupro-nickel heat exchanger, the MasterTemp 460772 is resistant to corrosion, even in pools with aggressive water chemistry or heavy use. A digital display and intuitive controls allow for precise temperature adjustment and system diagnostics, helping pool operators maintain ideal swimming conditions with ease.\u003c\/p\u003e\n\u003cp data-start=\"2139\" data-end=\"2318\"\u003eCompact, quiet, and built for durability, the Pentair 460772 MasterTemp ASME Heater is a top-tier solution for demanding pool environments where performance and compliance matter.\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-22\" data-testid=\"conversation-turn-184\" 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=\"61d8b973-48e3-4559-b629-3752dea2f1ee\" 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=\"319\"\u003e\u003cstrong data-start=\"79\" data-end=\"145\"\u003eQ: What is the Pentair 460772 MasterTemp ASME heater used for?\u003c\/strong\u003e\u003cbr data-start=\"145\" data-end=\"148\"\u003eA: The Pentair 460772 MasterTemp is a 250,000 BTU propane pool heater designed for inground pools that require reliable heating, ASME construction, and Low NOx compliance.\u003c\/p\u003e\n\u003chr data-start=\"321\" data-end=\"324\"\u003e\n\u003cp data-start=\"326\" data-end=\"495\"\u003e\u003cstrong data-start=\"326\" data-end=\"370\"\u003eQ: Is the Pentair 460772 ASME certified?\u003c\/strong\u003e\u003cbr data-start=\"370\" data-end=\"373\"\u003eA: Yes. This model is ASME certified, making it suitable for commercial-grade and code-required pool heating applications.\u003c\/p\u003e\n\u003chr data-start=\"497\" data-end=\"500\"\u003e\n\u003cp data-start=\"502\" data-end=\"665\"\u003e\u003cstrong data-start=\"502\" data-end=\"554\"\u003eQ: Is the Pentair 460772 propane or natural gas?\u003c\/strong\u003e\u003cbr data-start=\"554\" data-end=\"557\"\u003eA: This model is designed for propane gas. Natural gas versions are available under different model numbers.\u003c\/p\u003e\n\u003chr data-start=\"667\" data-end=\"670\"\u003e\n\u003cp data-start=\"672\" data-end=\"882\"\u003e\u003cstrong data-start=\"672\" data-end=\"725\"\u003eQ: What size pool is the Pentair 460772 best for?\u003c\/strong\u003e\u003cbr data-start=\"725\" data-end=\"728\"\u003eA: This 250K BTU heater is best for medium-sized inground pools, spas, and applications that need dependable heating without using a larger 400K BTU unit.\u003c\/p\u003e\n\u003chr data-start=\"884\" data-end=\"887\"\u003e\n\u003cp data-start=\"889\" data-end=\"1095\"\u003e\u003cstrong data-start=\"889\" data-end=\"938\"\u003eQ: Is the Pentair 460772 MasterTemp worth it?\u003c\/strong\u003e\u003cbr data-start=\"938\" data-end=\"941\"\u003eA: Yes. It is a strong option for pool owners or facilities needing propane heating, ASME certification, Low NOx performance, and cupro-nickel durability.\u003c\/p\u003e\n\u003chr data-start=\"1097\" data-end=\"1100\"\u003e\n\u003cp data-start=\"1102\" data-end=\"1270\"\u003e\u003cstrong data-start=\"1102\" data-end=\"1149\"\u003eQ: Is the Pentair 460772 Low NOx compliant?\u003c\/strong\u003e\u003cbr data-start=\"1149\" data-end=\"1152\"\u003eA: Yes. This heater is Low NOx compliant, making it suitable for regulated areas with strict air quality requirements.\u003c\/p\u003e\n\u003chr data-start=\"1272\" data-end=\"1275\"\u003e\n\u003cp data-start=\"1277\" data-end=\"1527\"\u003e\u003cstrong data-start=\"1277\" data-end=\"1335\"\u003eQ: Is the Pentair 460772 suitable for saltwater pools?\u003c\/strong\u003e\u003cbr data-start=\"1335\" data-end=\"1338\"\u003eA: Yes. The cupro-nickel heat exchanger provides improved resistance to corrosion, making it suitable for saltwater and chemically treated pools when water chemistry is properly maintained.\u003c\/p\u003e\n\u003chr data-start=\"1529\" data-end=\"1532\"\u003e\n\u003cp data-start=\"1534\" data-end=\"1743\"\u003e\u003cstrong data-start=\"1534\" data-end=\"1599\"\u003eQ: Does the Pentair 460772 require professional installation?\u003c\/strong\u003e\u003cbr data-start=\"1599\" data-end=\"1602\"\u003eA: Yes. Professional installation is recommended due to propane gas sizing, plumbing, electrical setup, venting, and local code requirements.\u003c\/p\u003e\n\u003chr data-start=\"1745\" data-end=\"1748\"\u003e\n\u003cp data-start=\"1750\" data-end=\"1981\"\u003e\u003cstrong data-start=\"1750\" data-end=\"1812\"\u003eQ: Can the Pentair 460772 replace my existing pool heater?\u003c\/strong\u003e\u003cbr data-start=\"1812\" data-end=\"1815\"\u003eA: Yes. It can replace many existing propane pool heaters, but compatibility depends on gas supply, plumbing layout, electrical setup, venting, and code requirements.\u003c\/p\u003e\n\u003chr data-start=\"1983\" data-end=\"1986\"\u003e\n\u003cp data-start=\"1988\" data-end=\"2227\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1988\" data-end=\"2062\"\u003eQ: When should I choose the Pentair 460772 instead of a larger heater?\u003c\/strong\u003e\u003cbr data-start=\"2062\" data-end=\"2065\"\u003eA: Choose this 250K BTU model if you need ASME-certified propane heating for a medium pool and do not require 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","brand":"Pentair","offers":[{"title":"Default Title","offer_id":44123084587051,"sku":"460772","price":3850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/1589\/7131\/files\/460772.png?v=1779704049","url":"https:\/\/auremontdirect.com\/products\/pentair-mastertemp-400k-btu-pool-heater-natural-gas-low-nox","provider":"Auremont Direct","version":"1.0","type":"link"}