How much does it cost to run a water heater in the US?

Every published “average” running cost multiplies wattage by hours and never checks a real utility bill. Enter your ZIP code, the draw pattern that matches your household, and your unit’s UEF (from its EnergyGuide label) to see a number tied to your own utility’s actual rate.

ZIP code

How much hot water does the household use?

small units - a single bathroom, or a point-of-use heater under a sinka one- or two-person householda typical three- or four-person household, about 55 gallons on a busy morninga larger household, or one where showers and laundry overlap

UEF (Uniform Energy Factor, from the unit’s EnergyGuide label)Calculate

Enter your ZIP, the draw pattern that matches your household, and your unit’s UEF to see a real number.

Where these numbers come from