Close your damper: No fire burning? The open flue
damper sucks warm air out of your home. If you no longer burn wood,
consider sealing it.
Seal outdoor outlets: Don’t forget your home’s
exterior. Make sure to use insulated electrical outlet boxes with
proper sealing to prevent air leaks.
Clean the tracks: Remove dust and debris from the
tracks on sliding glass doors.
Add a skirt: A properly fitted door closes firmly
and does not allow air to leak in on the sides, top or bottom. For a
few dollars you can purchase rubber weatherstripping to skirt the
doorframe.