Forced air furnaces have filters that trap dirt and dust. For efficient air flow, they should be cleaned or replaced. Shake reusable filters outside or spray them with a garden hose. Make sure they're dry before replacing. 5 Close chimney dampers.
Warm air rises up and out open chimneys at an alarming rate.
Close your damper as soon as you're certain the fire is completely out. 6 Use sweaters and blankets. Throw an extra blanket on the bed and war a wool sweater if your home feels chilly. You'll be warm and toasty before you know it. 7 Circulate heated air.