{"product_id":"pentair-460737-mastertemp-propane-pool-heater-400-000-btu-high-performance-heating-120-240v","title":"Pentair 460737 MasterTemp Propane Pool Heater – 400,000 BTU High-Performance Heating, 120\/240V","description":"\u003cp data-start=\"601\" data-end=\"1006\"\u003eThe \u003cstrong data-start=\"605\" data-end=\"654\"\u003ePentair MasterTemp 460737 Propane Pool Heater\u003c\/strong\u003e delivers \u003cstrong data-start=\"664\" data-end=\"703\"\u003e400,000 BTU of robust heating power\u003c\/strong\u003e and dependable performance for residential pool owners who demand quick warm-ups, energy efficiency, and long-term reliability. Fueled by \u003cstrong data-start=\"842\" data-end=\"857\"\u003epropane gas\u003c\/strong\u003e and operating on \u003cstrong data-start=\"875\" data-end=\"893\"\u003e120\/240V power\u003c\/strong\u003e, this heater combines high-capacity output with a compact footprint, quiet performance, and easy installation.\u003c\/p\u003e \u003cp data-start=\"1008\" data-end=\"1383\"\u003eWith an efficient heat exchanger and digital temperature controls, the MasterTemp 460737 provides consistent, comfortable water temperature for extended swim seasons. Built with rugged composite materials, corrosion resistance, and industry-trusted safety features, this heater is ideal for pools that require powerful heating without sacrificing ease of use or durability.\u003c\/p\u003e \u003ch2 data-start=\"1390\" data-end=\"1412\"\u003e\u003cstrong data-start=\"1393\" data-end=\"1410\"\u003e\u003cstrong data-start=\"605\" data-end=\"654\"\u003ePentair MasterTemp 460737 Propane Pool Heater \u003c\/strong\u003eCompatibility\u003c\/strong\u003e\u003c\/h2\u003e \u003cul data-start=\"1413\" data-end=\"1856\"\u003e \u003cli data-start=\"1413\" data-end=\"1485\"\u003e \u003cp data-start=\"1415\" data-end=\"1485\"\u003eDesigned for \u003cstrong data-start=\"1428\" data-end=\"1452\"\u003epropane fuel systems\u003c\/strong\u003e with standard propane hookups.\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"1486\" data-end=\"1568\"\u003e \u003cp data-start=\"1488\" data-end=\"1568\"\u003eWorks with \u003cstrong data-start=\"1499\" data-end=\"1531\"\u003e2” pool plumbing connections\u003c\/strong\u003e in most residential installations.\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"1569\" data-end=\"1687\"\u003e \u003cp data-start=\"1571\" data-end=\"1687\"\u003eCompatible with Pentair and many third-party pool automation controls (IntelliCenter®, EasyTouch®, IntelliTouch®).\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"1688\" data-end=\"1786\"\u003e \u003cp data-start=\"1690\" data-end=\"1786\"\u003eSuitable as a replacement for Max-E-Therm®, MasterTemp®, and similar 400K BTU propane heaters.\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"1787\" data-end=\"1856\"\u003e \u003cp data-start=\"1789\" data-end=\"1856\"\u003eIntegrates with variable-speed pump and modern filtration setups.\u003c\/p\u003e \u003c\/li\u003e \u003cli data-section-id=\"6xcx3w\" data-start=\"571\" data-end=\"587\"\u003ePentair 460737\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e \u003c\/li\u003e \u003cli data-section-id=\"1ifyhyl\" data-start=\"588\" data-end=\"608\"\u003ePentair MasterTemp\u003c\/li\u003e \u003cli data-section-id=\"e27kuk\" data-start=\"609\" data-end=\"636\"\u003ePentair MasterTemp 460737\u003c\/li\u003e \u003cli data-section-id=\"1pzp52f\" data-start=\"637\" data-end=\"654\"\u003eMasterTemp 400K\u003c\/li\u003e \u003cli data-section-id=\"xax6bg\" data-start=\"655\" data-end=\"679\"\u003e400000 BTU Pool Heater\u003c\/li\u003e \u003cli data-section-id=\"18p0j7w\" data-start=\"680\" data-end=\"701\"\u003ePropane Pool Heater\u003c\/li\u003e \u003cli data-section-id=\"w8w7gy\" data-start=\"702\" data-end=\"722\"\u003eLP Gas Pool Heater\u003c\/li\u003e \u003cli data-section-id=\"nvt4pr\" data-start=\"723\" data-end=\"742\"\u003ePool \u0026amp; Spa Heater\u003c\/li\u003e \u003cli data-section-id=\"1ungzke\" data-start=\"743\" data-end=\"764\"\u003ePentair Pool Heater\u003c\/li\u003e \u003cli data-section-id=\"1cgpkzm\" data-start=\"765\" data-end=\"794\"\u003eHigh Efficiency Pool Heater\u003c\/li\u003e \u003c\/ul\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompatible replacement built to Pentair specification 460737 — not manufactured by Pentair.\u003c\/li\u003e\n\u003cli\u003eBTU rating: 400,000 BTU.\u003c\/li\u003e\n\u003cli\u003eVoltage: 240V.\u003c\/li\u003e\n\u003cli\u003eSized by BTU output — match the rating and fuel type to your existing unit.\u003c\/li\u003e\n\u003cli\u003eShips from our US warehouse with tracking on dispatch.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Pentair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 460737\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Pool Heaters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBTU rating:\u003c\/strong\u003e 400,000 BTU\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC \/ GTIN:\u003c\/strong\u003e 788379724085\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping weight:\u003c\/strong\u003e 136 lb\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the 460737 an original Pentair part or a compatible replacement?\u003c\/h3\u003e\u003cp\u003eThe 460737 is a compatible replacement built to match Pentair specification. It is not manufactured by Pentair and carries no Pentair branding or warranty.\u003c\/p\u003e\u003ch3\u003eDoes the BTU rating have to match my old heater?\u003c\/h3\u003e\u003cp\u003eThe BTU rating should match or exceed your previous heater. Undersizing means the pool never reaches temperature on cold days; oversizing costs more up front but heats faster and cycles less.\u003c\/p\u003e\u003ch3\u003eCan this run on propane instead of natural gas?\u003c\/h3\u003e\u003cp\u003eNo. Gas pool heaters are built for one fuel and require a manufacturer conversion kit to change. Check the data plate on your existing unit and order the matching fuel type.\u003c\/p\u003e\u003ch3\u003eWhat size heater do I need for my pool?\u003c\/h3\u003e\u003cp\u003eA common rule is 1 BTU per gallon as a minimum, increased for windy sites, uncovered pools, or cold climates. A 20,000 gallon pool typically starts at 250,000 BTU.\u003c\/p\u003e\u003ch3\u003eDo I need a professional to install a pool heater?\u003c\/h3\u003e\u003cp\u003eGas heaters involve gas line sizing, venting and electrical connections, and most jurisdictions require a licensed installer plus a permit. Improper installation voids the manufacturer warranty.\u003c\/p\u003e\u003ch3\u003eHow do I confirm this part fits my equipment?\u003c\/h3\u003e\u003cp\u003eCheck the part number stamped on the component you are replacing, or find it on the parts schematic in your owner's manual. If the number differs or is unreadable, send us your equipment model and serial number and we will verify fitment before you order.\u003c\/p\u003e\u003ch3\u003eHow quickly does this ship?\u003c\/h3\u003e\u003cp\u003eIn-stock items ship from our US warehouse on business days. You will receive tracking by email once the order leaves the warehouse.\u003c\/p\u003e\u003ch3\u003eCan I return it if I ordered the wrong part?\u003c\/h3\u003e\u003cp\u003eUnopened, uninstalled items can be returned within 30 days. Equipment that has been installed or plumbed cannot be returned, so confirm fitment before installation.\u003c\/p\u003e\u003ch3\u003eIs this covered by a warranty?\u003c\/h3\u003e\u003cp\u003eManufacturer warranty terms vary by brand and product. Warranty claims generally require proof of purchase and, on installed equipment, evidence of professional installation.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Is the 460737 an original Pentair part or a compatible replacement?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The 460737 is a compatible replacement built to match Pentair specification. 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