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EERE » BTO » Building America » Solution Center Home » 11.1.2b For Nat’l v1.2, ≥ 2.0 COP for electric serving dwelling units, ≥ 95% Et for electric serving common spaces, and ≥ 90% Et for other fuels.

11.1.2b For Nat’l v1.2, ≥ 2.0 COP for electric serving dwelling units, ≥ 95% Et for electric serving common spaces, and ≥ 90% Et for other fuels.

See the following guides for relevant information.

Central Heat Pump Water Heaters for Multifamily Buildings
Distributed Heat Pump Water Heaters for Multifamily Buildings
Heat Pump Water Heaters for Single-Family Homes
Ground-Source Heat Pumps
Gas-Fired Tankless Water Heaters
Gas-Fired Boilers