Cold Air Coming In Through Gas Fireplace

Leaving the fireplace pilot light on in the winter will help.

Cold air coming in through gas fireplace.

Use our flue coverto 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. What is a bit unusual in your case is that these vents usually don t pull cold air into the house without a fire present. This combustion air is necessary because new houses are so air tight there can be a lack of adequate combustion air.

Also you may discover that the knockout for the gas line is letting cold air come in. The air comes in through the large unsealed hole that is left from the pipe going through. Use our magnetic fireplace vent coverto stop the inner cold air circulation from the vents. When you close the flue you re essentially plugging the chimney with a metal flap.

Ways to prevent cold air entering your home through your fireplace. Keeping your home warmer in the winter can involve a couple steps. Step one is stopping the cold air draft. You will stop the cold drafty air in the winter and keep warm humid air from coming in during the summer months.

Putting a bag or plastic over the box outside does nothing. I m guessing that that along with a void between the back of the insert and the flue is allowing cold air to come down the chimney past the back of the insert and underneath the insert and out into my family room. If the wall behind the fireplace is uninsulated which is common the problem will be worse. These units usually don t have a damper on the combustion air that you can close.

When a fireplace isn t in use cold air from outside can come down the chimney into the home and warm interior air can escape up through the flue. Stuffing the hole s with batt insulation will slow the draft down.