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Fast Facts


The most efficient and effective temperature for domestic hot water is 120 degrees F and can be measured at the faucet closet to your water heater.


Low-flow showerheads can reduce hot water use for showers by 40% or more and are available at low cost.


Tankless and heat pump water heaters offer new, highly efficient options for water heating but must be considered carefully.


Water Heating 101

Explore Water Heater Options

Low-Flow Showerheads

Water Heating Resources and Calculators