Cold Air Through Gas Fireplace

Look on the outside of the house near the location of the fireplace and see if you find a small vent near where the bottom of the fireplace would be.

Cold air through gas fireplace.

The damper that sits above the firebox should be able to close fully and make a tight seal. We recently bought a 1996 house which has a majestic gas fireplace. Use our flue cover to stop the outside air from coming in through the flue. This air is direct to the surrounding area behind the fireplace and comes out through any vent usually the lower grill making the floor icey cold.

Putting a bag or plastic over the box outside does nothing. The air comes in through the large unsealed hole that is left from the pipe going through. Ways to prevent cold air entering your home through your fireplace. Use our magnetic fireplace vent cover to stop the inner cold air circulation from the vents.

Over years of use dampers can become rusted or warped. Chances are before you had gas logs installed your fireplace was a wood burning fireplace. You will stop the cold drafty air in the winter and keep warm humid air from coming in during the summer months. Step one is stopping the cold air draft.

Remembering to keep the damper closed when the fireplace isn t being used will block the cold air that wants to enter your home. The only reason why your vented gas fireplace is drafty is because of the gas logs being installed. Also you may discover that the knockout for the gas line is letting cold air come in. If it is coming from the bottom then it could be make up air.

If the wall behind the fireplace is uninsulated which is common the problem will be worse. After inspecting i realize that the reason this room is always colder than the rest of the house is because there is a ton of cold air coming in underneath the gas fireplace insert. Keeping your home warmer in the winter can involve a couple steps. Leaving the fireplace pilot light on in the winter will help.