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preserves consistent flow
Energy-efficient pump and valve control — restores exact sequencing
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and a more efficient system
Lochinvar Energyrite Natural Gas Heater 399K BTU Ern402 ERN402 Hayward Seal preserves consistent flowLochinvar EnergyRite ERN402 Pool Heater 399,000 BTU Natural Gas Intro The Lochinvar EnergyRite ERN402 is a high capacity natural gas pool heater designed for residential pools and light commercial use. With 399,000 BTU h input, it delivers rapid, even heating and dependable performance across seasons. The EnergyRite lineup emphasizes durability, durable heat exchangers, and efficient operation, while offering flexible venting options for both indoor