Department of Energy Energy Savers PowerPoint: Windows 6 of 12

Department of Energy

Energy Savers PowerPoint: Windows

6 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

Windows

• 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.

What You Can Do

Reduce energy demand

Cut amount of resources needed

Create less greenhouse gas emissions

Reduce utility bills

Windows

Windows provide• Views• Daylighting• Ventilation• Solar heating

Windows

Windows account for 10% to 25% of your heating costs.

Windows

• Install ENERGY STAR® windows• Use curtains and natural shade

Window Panes

Tips

10 easy low-cost and no-cost ways to save energy with windows

Cold-climate Window Tips

• Use heavy-duty, clear plastic on a window frame– Plastic must be sealed

tightly to the frame to help reduce air infiltration

• Install tight-fitting, insulating window shades

Cold-climate Window Tips

• Close curtains at night; open them during the day

• Keep windows on the south side of house clean

Cold-climate Window Tips

• Install exterior or interior storm windows

• Repair and weatherize existing storm windows

Warm-climate Window Tips

• Install white shades, drapes, or blinds to reflect heat away from the house

• Close curtains on south-and west-facing windows during the day

Warm-climate Window Tips

• Install awnings on south- and west-facing windows

Warm-climate Window Tips

• Apply reflective films on south-facing windows

Long-Term Savings Tip

Install high-performance windows

Long-Term Savings Tip

Use low-e coatings; heat is reflected back into the room during the winter

Long-Term Savings Tips

Use low-e coatings; heat is reflected back to the outside during the SUMMER

Shopping Tips for Windows

Look for the ENERGY STAR® label

Shopping Tips for Windows

Check with local utilities for

available rebates

Shopping Tips for Windows

Use a double-glazed,low emissivity coating

Shopping Tips for Windows

U-factors

Shopping Tips for Windows

Solar heat gain coefficients

Shopping Tips for Windows

In temperate climates, select windows with BOTH low U-factors and low SHGCs to maximize energy savings.

Shopping Tips for Windows

Look for whole-unit U-factors and SHGCs rather than center-

of-glass (COG) values

Shopping Tips for Windows

Use trained professionals for installation

Summary