Department of Energy

Energy Savers PowerPoint:Water Heating

5 of 12

This 12 part PowerPoint series is taken directly from Energy Savers Booklet, Tips on Saving Energy & Money at Home, U.S. Department of Energy

Contents

1. Save Energy and Money Today 2. Your Home’s Energy Use 3. Insulation and Sealing Air Leaks 4. Heating and Cooling 5. Water Heating 6. Windows 7. Lighting 8. Appliances 9. Home Office and Home Electronics10. Driving and Car Maintenance11. Renewable Energy12. References

Water Heating

• This presentation will show you how easy it is to reduce your energy use at home.

• Easy, practical solutions include tips you can use, throughout your home—from the roof, walls, and insulation that enclose it to the appliances and lights inside.

Water Heating

Reduce energy demand

Cut amount of resources needed

Create less greenhouse gas emissions

Reduce utility bills

U.S. Energy Use for Home Water Heating

Space Heating

31%

Space Cooling

12%

Water Heating12%Lighting

11%

Appliances9%

Refrig-eration

8%

Other8%

Computers &Electronics

9%

Hot Water Usage

Activity Gallons per Use

Clothes washing 32

Showering 20

Bathing 20

Automatic dishwashing 12

Preparing food 5

Hand dishwashing 4

How to Cut the Water Bill

•Use less hot water•Turn down the thermostat on water heater•Insulate your water heater•Buy a new, more efficient model

Water Heating Tips

10 easy and effective ways to save energy with water heating

Water Heating Tips

• Install aerating, low-flow faucets and showerheads

Water Heating Tips

• Repair leaky faucets promptly

Water Heating Tips

Water heater setting• Temperature = 120°F– Provides plenty of hot

water– Decreases risk of

scalding

Water Heating Tips

Water Heating Tips

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

Water Heating Tips

• Select ENERGY STAR® rated appliances

Water Heating Tips

• Install heat traps on the hot and cold pipes at the water heater to prevent heat loss

Water Heating Tips

1 quart

Every 3 months, drain ~ 1 quart

Water Heating Tips

It’s best to start shopping now for a new water heater if yours is more than 7 years old.

Long-Term Savings Tip

Buy a new energy-efficient water heater

Long-Term Savings Tip

Look for the ENERGY STAR® label on these water heaters– High efficiency gas non-condensing– Gas condensing– Electric heat pump– Gas tankless– Solar

Long-Term Savings Tip

Consider installing a drain water waste heat recovery system.

Heat pump water heaters can be very cost-effective in some areas.

Long-Term Savings Tip

Consider an on-demand tankless water heater (gas)

Solar Water Heaters

• Consider installing an ENERGY STAR® qualified solar water heater if you– Heat water with electricity– Have high electric rates– Have an unshaded, south-

facing location on your property

Solar Water Heaters

• Used in 1.5 million homes and businesses

• Good for the environment– During a 20-year period, one solar

water heater can avoid more than 50 tons of CO2 emissions

Long-Term Savings Tip

www.dsireusa.org

Rebates for buying a solar water heater

Tax credits for buying a solar water heater

Summary

Hot water conservation measures

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