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Tankless Water Heater

Calculate annual energy savings from replacing a gas storage water heater with a tankless (instant) gas water heater in California using deemed savings from the California eTRM.

Location
Select your climate zone based on your location
Water Heater
Medium draw is typical for most households. High draw is for larger families or homes with high hot water demand.
UEF rating from the EnergyGuide label on the new tankless water heater. 0.92+ UEF ratings are premium condensing units available for high draw patterns.

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