This information is from The US Department of Energy. Find this article and many other online at The DOE's Office of Energy Efficiency and Renewable Energy website.
Water heating is the third largest energy expense in your home. It typically
accounts for about 14% 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, and buy a
new, more efficient water heater. A family of four, each showering for 5 minutes
a day, uses 700 gallons of water a week; this is enough for a 3-year supply of
drinking water for one person. You can cut that amount in half simply by using
low-flow aerating showerheads and faucets.
- Insulate your water heater to save energy and money.
- Look for the FTC EnergyGuide label.
Solar Water Heaters
If you heat with electricity and you have an unshaded,
south-facing location (such as a roof) on your property, consider installing a
solar water heater. More than 1.5 million homes and businesses in the United
States have invested in solar water heating systems and over 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 harmful
greenhouse gas emissions associated with electricity production. During a 20
year period, one solar water heater can avoid over 50 tons of carbon dioxide
emissions.
When shopping for a solar water heater, watch for systems certified by the
Solar Rating and Certification Corporation (SRCC) or the Florida Solar Energy
Center (FSEC).
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