• Windows are the most common places for drafts. Move your hand over the window frames of your house — can you feel a soft breeze? Heavy curtains will often contain the draft. Older houses may require caulking or weather stripping. In extreme cases, consider purchasing energy-efficient windows.
• The front and back doors of your home may be drafty, too. Heat can escape from the opening at the bottom of your doors or through the door frames. Installing a door sweep to the bottom of the door can keep drafts out.
• Chimneys are drafty by definition. Pay close attention to the air flow near your fireplace. Cover the opening securely when the fireplace is not in use.
• Attics, basements and eaves are where the most heat is lost. Examine the insulation there and determine whether it was installed properly.
• Electrical outlets and lighting fixtures can also be problematic. Visit your local hardware store to purchase draft-proofing gaskets.
You can also find drafts by walking around the inside of your home with a lit candle. If the flame flickers or goes out, you’ll know there’s a draft nearby.