U.S. Department of Energy: Energy Efficiency and Renewable Energy

Energy Savers Tips

Site Navigation ↓

Water Heating

Illustration of a gas water heater with an EnergyGuide label.

Keep Your Energy Bills Out of Hot Water
Look for the ENERGY STAR label.

Water heating is the third largest energy expense in your home. It typically accounts for about 12% of your utility bill. There are four ways to cut your water heating bills: use less hot water, turn down the thermostat on your water heater, insulate your water heater, or buy a new, more efficient model.

Water Heating Tips

Chart showing Average Hot Water Use (Activity/Gallons per Use): Clothes washing: 32, Showering: 20, Bathing: 20, Automatic dishwashing: 12, Preparing food: 5, Hand dishwashing: 4.  Source: ACEEE

Source: ACEEE

Long-Term Savings Tips

Solar Water Heaters

If you heat water with electricity, have high electric rates, and have an unshaded, south-facing location (such as a roof) on your property, consider installing an ENERGY STAR qualified solar water heater. The solar units are environmentally friendly and can now be installed on your roof to blend with the architecture of your house.

More than 1.5 million homes and businesses in the United States have invested in solar water heating systems, and surveys indicate that more than 94% of these customers consider the systems a good investment. Solar water heating systems are also good for the environment. Solar water heaters avoid the greenhouse gas emissions associated with electricity production. During a 20-year period, one solar water heater can avoid more than 50 tons of carbon dioxide emissions. When shopping for a solar water heater, look for the ENERGY STAR label and for systems certified by the Solar Rating and Certification Corporation or the Florida Solar Energy Center.

Long-Term Savings Tip

Back to Top | View Full Site
Energy Savers Tips Home | EERE Home
Webmaster | Search
Content Last Updated: 4/9/2009