Cold Air Coming From Gas Fireplace

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Cold air coming from gas fireplace.

We recently bought a 1996 house which has a majestic gas fireplace. The only place the cold air is coming in from is from the vent on the back that opens up directly to the outside of the house. When you close the flue you re essentially plugging the chimney with a metal flap. 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.

If the fireplace has a rear vent make sure it is sealed off when not in use. Use our magnetic fireplace vent coverto stop the inner cold air circulation from the vents. Then there is a constant flow of cold air coming out of the vents above and below mostly below the glass. We have been keeping a blanket shoved up in front of the bottom vent.

The air comes in through the large unsealed hole that is left from the pipe going through. The previous owner had a contractor put in a gas insert. You will stop the cold drafty air in the winter and keep warm humid air from coming in during the summer months. However with vented gas logs cold drafts are quite common.

Cold air coming in from bottom underneath of gas fireplace insert we bought a house earlier this year that has a family room addition with a brick fireplace. Putting a bag or plastic over the box outside does nothing. Install an energy efficient damper like a top mounting damper to seal off the flue completely when not in use note. The only reason why your vented gas fireplace is drafty is because of the gas logs being installed.

Chances are before you had gas logs installed your fireplace was a wood burning fireplace. These are not recommended on gas log sets.