Lochinvar Energyrite Natural Gas Heater 399K BTU Ern402 ERN402 Hayward Seal and fewer chemistry checks—ideal for

and fewer chemistry checks—ideal for sun-drenched pools

Featuring a 6-inch V-thread

this brush allows you to scrub dirt and debris from virtually any angle

The Natural Chemistry Start-Up Magic concentrated formula works to protect new pool finishes from the damaging effects of scale buildup and staining caused by excessive calcium

Chemically resistant

Lochinvar Energyrite Natural Gas Heater 399K BTU Ern402 ERN402 Hayward Seal and fewer chemistry checks—ideal forLochinvar 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