{"product_id":"pentair-mastertemp-high-performance-gas-heater","title":"Pentair MasterTemp High Performance Gas Heater","description":"\u003cp\u003eThe MasterTemp family scales from a 175 to a 400 model, letting a dealer match heater output to pool volume without switching product lines. Standard units use a copper heat exchanger rated at 84% thermal efficiency; heavy-duty cupro-nickel versions trade a couple efficiency points for better resistance to aggressive water chemistry. Every size ships as a natural gas or propane SKU, with digital ignition and flame sensing standard across the range.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFive BTU sizes (175\/200\/250\/300\/400, per model number) covering small to large residential pools\u003c\/li\u003e\n\u003cli\u003e84% thermal efficiency with copper heat exchanger; 82% on heavy-duty cupro-nickel HX models\u003c\/li\u003e\n\u003cli\u003eNatural gas and propane SKUs available at every size\u003c\/li\u003e\n\u003cli\u003eDigital display with ignition control and flame sensor\u003c\/li\u003e\n\u003cli\u003eCSA\/cUL US listed\u003c\/li\u003e\n\u003cli\u003eWeight ranges 120-149 lb depending on model size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel family\u003c\/td\u003e\n\u003ctd\u003eMasterTemp (175, 200, 250, 300, 400)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN (175 NG)\u003c\/td\u003e\n\u003ctd\u003e460792 (propane 460793)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN (200 NG)\u003c\/td\u003e\n\u003ctd\u003e460730 (propane 460731; ASME 461000\/461001)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN (250 NG)\u003c\/td\u003e\n\u003ctd\u003e460732 (propane 460733; ASME 460771\/460772; HD NG 460806)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN (300 NG)\u003c\/td\u003e\n\u003ctd\u003e460734 (propane 460735)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN (400 NG)\u003c\/td\u003e\n\u003ctd\u003e460736 (propane 460737; HD NG 460805; ASME variants 460775\/460776\/461021)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal efficiency\u003c\/td\u003e\n\u003ctd\u003e84% (copper HX) \/ 82% (heavy-duty cupro-nickel HX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e120-149 lb, by model size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCSA\/cUL US listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController\u003c\/td\u003e\n\u003ctd\u003eDigital display, ignition control with flame sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNote\u003c\/td\u003e\n\u003ctd\u003ePer-model BTU rating not stated on manufacturer page; conventionally model number x 1,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":44575945752665,"sku":"460792","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/8404\/8217\/files\/MasterTemp-banner.png.thumb.1280.1280.png?v=1787615378","url":"https:\/\/pooldirectsupply.com\/products\/pentair-mastertemp-high-performance-gas-heater","provider":"PDS","version":"1.0","type":"link"}