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Home Energy Savings - 10 Tips To More Efficient Water Heating

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Here are 10 great tips on how to make your water heating system(s) more efficient.
Part 5
Water Heating

Water heating is the third largest energy expense in your home. It typically accounts for about 18% 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 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 shower heads and faucets.

Water Heating Tips

1.- Install aerating, low-flow faucets, and low-flow shower heads.

2.- Repair leaky faucets promptly; a leaky faucet wastes gallons of water in a short period of time.

3.- Lower the thermostat on your water heater; water heaters sometimes come from the factory with high temperature settings. A setting of 120°F provides comfortable hot water for most uses and can prevent scalding.

4.- Take more showers than baths. Bathing uses the most hot water in the average household. You use 25–45 gallons of hot water for a bath, but less than 10 gallons during a 5-minute shower.

5.- Insulate your electric hot-water storage tank, but be careful not to cover the thermostat. Follow the manufacturer’s recommendations. Insulate your natural gas or oil hot water storage tank, but be careful not to cover the water heater’s top, bottom, thermostat, or burner compartment. Follow the manufacturer’s recommendations; when in doubt, get professional help.

6.- Insulate the first 6 feet of the hot and cold water pipes connected to the water heater.

7.- If you are in the market for a new dishwasher or clothes washer, consider buying an efficient, water-saving model or Energy Star rated one to reduce hot water use. Wash clothes with cold water whenever possible.

8.- Install heat traps on the hot and cold pipes at the water heater to prevent heat loss. Most new water heaters have built-in heat traps.

9.- Drain a quart or two of water from your water tank every 3 to 4 months to
remove sediment that impedes heat transfer and lowers the efficiency of your heater. The type of water tank you have determines the steps to take, so follow the manufacturer’s advice.

10.- Although most water heaters last 10– 15 years, it’s best to start shopping for a new one if yours is more than 7 years old. Doing some research before your heater fails will enable you to select one that most appropriately meets your needs.

Long-Term Savings Tips

• Buy a new energy-efficient, Energy Star rated water heater. While it may cost more initially than a standard water heater, the energy savings will continue during the lifetime of the appliance.

• Consider installing a drain water waste heat recovery system. A recent DOE study showed energy savings of 25% to about 30% for water heating using such a system.

• Consider demand or tankless water heaters. Researchers have found savings can be as much as 34% compared with a standard electric storage tank water heater.

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 a 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 over 94% of these customers consider the systems a good investment.

Solar water heating systems are also good for the environment. They 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, look for systems certified by the Solar Rating and Certification Corporation or other accredited rating organization.

Most solar units can be used in cold weather climates , but do incorporate a few added features and all should be installed by a professional. Vacuum Tube Solar water heaters are the latest technology and are probably the most efficient overall.

We have provided you with 10 great tips on how to make your Home Energy Savings dollar go farther by making your water heating system(s) more efficient.

This is part 5 of a 7 part series on Home Energy Savings. Click on the link at the top of this page to get our feed, either from RSS or e-mail, so you don’t miss an installment.

Our next Installment (part 6) will be on more efficient Windows and Doors.

Peace and Prosperity,
Rich @ NY Homesteader

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