{"product_id":"pentair-mastertemp-gas-pool-heater","title":"Pentair MasterTemp High-Performance Gas Pool Heater","description":"\u003cp\u003e\u003cstrong\u003eA compact, high-efficiency gas pool heater engineered with a tough composite exterior that never rusts.\u003c\/strong\u003e The Pentair MasterTemp series delivers rapid heat-up times and reliable temperature regulation for in-ground pools and spa combinations. Featuring a pre-mixed air and gas combustion system, fully digital rotating display, and certified low-NOx emissions, MasterTemp provides dependable heating performance across Canadian seasonal temperature swings.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty rustproof housing\u003c\/strong\u003e — tough composite exterior enclosure withstands severe outdoor weather conditions, coastal moisture, and chemical exposure without corrosion or fading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-mixed air and gas combustion\u003c\/strong\u003e — sealed combustion chamber with electric blower mixes fuel and air for efficient 84% thermal efficiency and quiet burner operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotating digital control panel\u003c\/strong\u003e — intuitive push-button interface rotates to three different positions for convenient viewing and operation from any equipment pad orientation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-NOx certified emissions\u003c\/strong\u003e — clean-burning combustion system meets and exceeds stringent air quality standards, including SCAQMD Rule 1146.2.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot surface ignition\u003c\/strong\u003e — electronic ignition provides reliable starting without a standing pilot light, reducing overall fuel consumption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagnostic indicator lights\u003c\/strong\u003e — control board includes system monitoring LEDs for water pressure switch, high limit sensors, thermal regulator, and flame detection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eMasterTemp High Performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEquipment type\u003c\/th\u003e\n\u003ctd\u003eGas-fired pool and spa heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eThermal efficiency\u003c\/th\u003e\n\u003ctd\u003e84%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAvailable thermal capacities\u003c\/th\u003e\n\u003ctd\u003e175,000 \/ 250,000 \/ 300,000 \/ 400,000 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFuel types\u003c\/th\u003e\n\u003ctd\u003eNatural Gas (NG) or Liquid Propane (LP) dedicated factory configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHeat exchanger\u003c\/th\u003e\n\u003ctd\u003eFinned copper tube heat exchanger with cupro-nickel option (HD models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eIgnition system\u003c\/th\u003e\n\u003ctd\u003eHot Surface Ignition (HSI) electronic control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCombustion type\u003c\/th\u003e\n\u003ctd\u003eFan-assisted forced draft pre-mixed combustion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDisplay\u003c\/th\u003e\n\u003ctd\u003eRotating digital LED display with dual temperature settings (Pool and Spa)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWater connection size\u003c\/th\u003e\n\u003ctd\u003e2 in. CPVC slip unions included (reversible header for left or right plumbing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRecommended flow rate (175–250)\u003c\/th\u003e\n\u003ctd\u003e20 to 120 GPM (76 to 454 L\/min); external bypass required above 120 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRecommended flow rate (300–400)\u003c\/th\u003e\n\u003ctd\u003e40 to 120 GPM (151 to 454 L\/min); external bypass required above 120 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eGas supply connection\u003c\/th\u003e\n\u003ctd\u003e3\/4 in. NPT internal thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMinimum natural gas supply pressure\u003c\/th\u003e\n\u003ctd\u003e4.0 in. w.c. (1.0 kPa)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum natural gas supply pressure\u003c\/th\u003e\n\u003ctd\u003e10.5 in. w.c. (2.6 kPa)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMinimum propane supply pressure\u003c\/th\u003e\n\u003ctd\u003e11.0 in. w.c. (2.7 kPa)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum propane supply pressure\u003c\/th\u003e\n\u003ctd\u003e13.0 in. w.c. (3.2 kPa)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eElectrical requirements\u003c\/th\u003e\n\u003ctd\u003e120 V AC, 60 Hz, 3 A or 240 V AC, 60 Hz, 1.5 A single phase (field switchable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCabinet construction\u003c\/th\u003e\n\u003ctd\u003eCorrosion-resistant molded thermoplastic structural composite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eVenting configuration\u003c\/th\u003e\n\u003ctd\u003eOutdoor atmospheric direct discharge or indoor Category I \/ III venting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDimensions (W × D × H)\u003c\/th\u003e\n\u003ctd\u003e533 × 533 × 711 mm (21.0 × 21.0 × 28.0 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOperating weight (175 \/ 250)\u003c\/th\u003e\n\u003ctd\u003e53.5 kg (118 lb) \/ 57.2 kg (126 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOperating weight (300 \/ 400)\u003c\/th\u003e\n\u003ctd\u003e61.7 kg (136 lb) \/ 64.9 kg (143 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCertifications\u003c\/th\u003e\n\u003ctd\u003eCSA certified to ANSI Z21.56 \/ CSA 4.7 standard for gas-fired pool heaters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eBefore you buy\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGas line sizing must be verified by a licensed gas technician in accordance with Canadian gas installation codes (CSA B149.1) to maintain required flow under full load.\u003c\/li\u003e\n\u003cli\u003eThe heater must be mounted on a level, non-combustible base with minimum clearances: 15 cm (6 in.) on sides, 122 cm (48 in.) above the top for outdoor discharge, and 15 cm (6 in.) at the rear.\u003c\/li\u003e\n\u003cli\u003eMaintain balanced water chemistry (pH 7.4–7.6, total alkalinity 80–120 ppm, calcium hardness 200–400 ppm) to protect heat exchanger surfaces from scale and corrosion.\u003c\/li\u003e\n\u003cli\u003eWhen installing above 120 GPM total filter pump flow, an external manual bypass valve assembly must be installed to prevent excessive heat exchanger erosion.\u003c\/li\u003e\n\u003cli\u003eFull winterization (draining header plugs and heat exchanger manifold) is required prior to freezing temperatures in Canadian climates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eQuestions about gas line sizing or equipment pad layout? Contact our technical team for assistance.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eWhat is the thermal efficiency of the MasterTemp?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eThe MasterTemp achieves up to 84% thermal efficiency, meeting air-quality low-NOx emission standards with a fully premixed air and gas combustion blower system.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eWhat gas line pressure is required for natural gas models?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eIncoming natural gas pressure must be between 4.0 inches W.C. minimum and 14.0 inches W.C. maximum during full burner operation to avoid flame rollout or pressure drop.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eCan the MasterTemp be automated with Pentair IntelliTouch or EasyTouch?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eYes. The heater has standard 2-wire automation connections compatible with Pentair automation panels, IntelliCenter, and third-party remote control systems.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eWhat pad clearance is required around the unit?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eMaintain 6 inches (150 mm) of clearance on the back and non-plumbed side, 12 inches (300 mm) on the plumbing side, 18 inches (450 mm) for front control access, and unobstructed overhead exhaust.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eHow should the MasterTemp be drained for freezing weather?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eShut off electrical power and gas valve. Remove the drain plugs from the water header, open the manual bypass, disconnect the union fittings, and use compressed air to expel any water remaining in the tubes.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/mastertemp\/manual\/mastertemp-heater-manual-english.pdf\" target=\"_blank\" rel=\"noopener\"\u003eInstallation and user's guide — Pentair MasterTemp pool and spa heater (English) (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/mastertemp\/manual\/archive\/Pentair%20MasterTemp%20Heater%20Submittal%20Data.pdf\" target=\"_blank\" rel=\"noopener\"\u003eProduct specification and submittal data sheet — Pentair MasterTemp series (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003csmall\u003eSpecifications compiled from official Pentair MasterTemp High Performance Heater Installation and User's Guide (P\/N 472592) and MasterTemp engineering specification sheet. All specifications are subject to manufacturer verification. \u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/mastertemp\/manual\/mastertemp-heater-manual-english.pdf\" target=\"_blank\" rel=\"noopener\"\u003eView the Pentair MasterTemp manual (PDF)\u003c\/a\u003e.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Safety Notice:\u003c\/strong\u003e Gas pool heaters must be installed by a licensed gas technician (TSSA certified in Ontario) in accordance with the manufacturer's manual and applicable venting and fuel codes.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"175,000 BTU\/h \/ Natural gas","offer_id":53973654536486,"sku":"460730","price":3450.0,"currency_code":"CAD","in_stock":true},{"title":"175,000 BTU\/h \/ Propane","offer_id":53973654569254,"sku":"460731","price":3450.0,"currency_code":"CAD","in_stock":true},{"title":"250,000 BTU\/h \/ Natural gas","offer_id":53973654602022,"sku":"460732","price":3780.0,"currency_code":"CAD","in_stock":true},{"title":"250,000 BTU\/h \/ Propane","offer_id":53973654634790,"sku":"460733","price":3780.0,"currency_code":"CAD","in_stock":true},{"title":"300,000 BTU\/h \/ Natural gas","offer_id":53973654667558,"sku":"460734","price":4290.0,"currency_code":"CAD","in_stock":true},{"title":"300,000 BTU\/h \/ Propane","offer_id":53973654700326,"sku":"460735","price":4290.0,"currency_code":"CAD","in_stock":true},{"title":"400,000 BTU\/h \/ Natural gas","offer_id":53973654733094,"sku":"460736","price":5089.0,"currency_code":"CAD","in_stock":true},{"title":"400,000 BTU\/h \/ Propane","offer_id":53973654765862,"sku":"460737","price":5180.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1039\/8521\/7830\/files\/pentair-mastertemp-gas-pool-heater_79440c51-cf5a-4ca6-95b2-e2c9997e8de7.png?v=1790688811","url":"https:\/\/avlshop.ca\/products\/pentair-mastertemp-gas-pool-heater","provider":"AVL Shop","version":"1.0","type":"link"}