{"product_id":"pentair_460742","title":"Pentair Propane to Natural Gas Conversion Kit Model 250 | MasterTemp \/ Max-E-Therm | 460742","description":"\u003ch3\u003eConvert Your MasterTemp 250 from Propane to Natural Gas\u003c\/h3\u003e\n\u003cp\u003eThe Pentair Propane to Natural Gas Conversion Kit (460742) is the OEM replacement conversion kit for the MasterTemp and Max-E-Therm 250 pool heater. If your gas supply is being changed from liquid propane (LP) to natural gas (NG), this is the factory-specified kit to reconfigure your heater's burner system for the new fuel type.\u003c\/p\u003e\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0; color: #856404;\"\u003e\u003cstrong\u003e⚠️ IMPORTANT: KIT CONTENTS — INCLUDES KEY NOS. 3 AND 4\u003c\/strong\u003e\u003cbr\u003eThis listing is a complete conversion kit, not a single component. It includes Key Nos. 3 and 4 from the MasterTemp \/ Max-E-Therm 250 burner assembly exploded diagram. Confirm your heater's parts diagram before ordering to ensure you are not duplicating individual components already on hand.\u003c\/p\u003e\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0; color: #856404;\"\u003e\u003cstrong\u003e⚠️ IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED\u003c\/strong\u003e\u003cbr\u003eGas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high-voltage components without proper certification. Converting a heater's fuel type involves the gas valve, orifices, and burner assembly — this work must be performed by a certified technician in accordance with local gas codes.\u003c\/p\u003e\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0; color: #856404;\"\u003e\u003cstrong\u003e⚠️ IMPORTANT: NOT INCLUDED WITH THE HEATER — ORDER SEPARATELY\u003c\/strong\u003e\u003cbr\u003eThis conversion kit is not supplied with the MasterTemp 250NA or 250LP heater at the time of purchase. It must be ordered separately when a fuel-type conversion is required.\u003c\/p\u003e\n\u003cp\u003eThis kit reconfigures the MasterTemp \/ Max-E-Therm 250's burner system from liquid propane to natural gas operation. The two fuel types require different orifice sizing and gas valve calibration to maintain correct combustion and heat output. Installing the correct OEM conversion kit ensures the heater operates within Pentair's rated performance specifications after the fuel change — using non-OEM components or incorrect orifice sizes can result in incomplete combustion, sooting, or unsafe operation.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePentair Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e460742\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePart Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePropane to Natural Gas Conversion Kit — Model 250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eConversion Direction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eLiquid Propane (LP) to Natural Gas (NG)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eIncludes Key Nos. 3 and 4 (per MasterTemp \/ Max-E-Therm 250 burner assembly diagram)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eQuantity Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e1 Kit \u003cspan data-test-selector=\"attributes_item_value\" class=\"TypographyStyle--11lquxl OQhWC\"\u003eClamp Assembly, O-Ring and Silicone Tube\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFits Into\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eEquipment Line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eModel \/ Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePentair\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eMasterTemp 250 — MasterTemp Series\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e250NA\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePropane to NG Conversion Kit for Model 250; not included with heater, order separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePentair\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eMasterTemp 250 — MasterTemp Series\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e250LP\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePropane to NG Conversion Kit for Model 250; not included with heater, order separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eCompatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003ePro Tip\u003c\/h3\u003e\n\u003cp\u003eBefore your technician begins the conversion, locate the rating plate on your MasterTemp heater and confirm the model number ends in \"250\" This kit is sized specifically for the 250,000 BTU\/hr burner assembly. The Max-E-Therm 250 and MasterTemp 250 share the same burner platform, so this kit applies to both series at the 250 BTU rating. Conversion kits are not interchangeable across BTU ratings (e.g., a 400K kit will not work on a 250K heater). If you are unsure which kit your heater requires, cross-reference the part number against the exploded diagram in your heater's installation manual before ordering.\u003c\/p\u003e\n\u003c!-- wft:processed:manual:2026-04-03 --\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":53912386896147,"sku":"460742","price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/pentair-propane-to-natural-gas-conversion-kit-model-250-mastertemp-max-e-therm-460742-1.webp?v=1777492408","url":"https:\/\/poolaroo.com\/products\/pentair_460742","provider":"Poolaroo","version":"1.0","type":"link"}