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Apr 07, 2026 - 11:41 AM
The Pentair MasterTemp 400 pool heater has an efficiency rating of 84%. This means it converts 84% of the fuel it uses directly into usable heat for your pool or spa.
What is the efficiency rating of Pentair MasterTemp 400? Pentair MasterTemp 400HD Natural Gas Heater, Cupronickel, 460805, 400K BTU
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Open Apr 07, 2026 - 11:41 AM
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Pentair MasterTemp 400HD Natural Gas Heater, Cupronickel, 460805, 400K BTU
Pentair MasterTemp® 460805 Pool and Spa Heater; 400HD BTU, Natural Gas, Cupro-Nickel Tubing MASTERTEMP® HD Heavy Duty Heater: The MasterTemp HD is Pentair’s solution for those seeking maximum durability in various conditions and applications. Featuring a cupro-nickel heat exchanger, this h...
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