Windows and Heating Systems
At 50% of your energy bill, heating is the single largest use of energy in most homes. You can take measures to improve your heating and control systems, and reduce heat loss so less heating is required.
Windows
- Up to one third of the heat in your home can escape through your windows. Put storm windows or plastic sheeting on single-glazed windows to reduce heat loss.
- Consider installing energy-efficient windows. These windows undergo extensive testing to ensure they reduce heat loss and are higher quality than standard code windows.
- For maximum energy savings, install windows with low-e coating or argon fill.
Heating system
- A dirty furnace filter delivers less air. Ensure yours is clean.
- Avoid heating uninsulated spaces such as a garage, crawlspace, attic or storage shed.
- Close the fireplace chimney damper between fires to keep warm air in during the winter and out during the summer.
- Avoid heating unused rooms by closing doors and warm air supply registers, or lower the room thermostat for baseboards.
