Air leaks into our homes during the summer and winter. One way to cut back on your energy bills is to test your home and find out where air is coming into your home. You can do this by holding a lit incense stick near any window, door, electrical box or outlet, ceiling fixtures, openings to the attic, duct work, dropped ceilings, chimneys/fireplaces and even plumbing fixtures.
If you find any air leaks:
Start by weatherstripping or caulking the areas where the air is coming in to your home.
You can use foam gaskets behind outlet and switch plate covers.
You can use spray foam in your insulation in the attic if you see or feel a leak.
Keep your flue damper closed when not in use. There is even an inflatable balloon that fits in your chimney to stop air drafts.
Look at the bottom of your door. You may need to replace door bottoms or the thresholds of exterior doors.
You may need new windows or add storm windows to keep the drafts to a minimum.
There are kitchen exhaust fan covers you can use too.
Make sure you have the proper insulation in the attic and walls as well.