Cold Air Coming In From Gas Fireplace Vent

If they don t own a blower door that s a bad sign.

Cold air coming in from gas fireplace vent.

If it is coming from the bottom then it could be make up air. Use our magnetic fireplace vent cover to stop the inner cold air circulation from the vents. There must be home performance contractors insulation air sealing companies even clever hvac people in alberta it s cold up there. Unless the door is not on properly it is very unlikely that air is actually coming in from outside that way the cold air normally comes out of the bottom of a rear vented direct vent fireplace the result of a reverse heat exchange.

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. 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. 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.

Use our flue cover to stop the outside air from coming in through the flue. This combustion air is necessary because new houses are so air tight there can be a lack of adequate combustion air. Keeping your home warmer in the winter can involve a couple steps. Finding the right person is key.

Even with no cold air penetration from the outside there are natural reverse convection drafts occurring. 1 check around the area where the gas line enters your home. If they do they would set it up right away and start figuring out where the air is and where they can stop it. There are several possible causes of feeling cold air from a gas fireplace.

You can stuff fiberglass or foil tape insulation in the hole to prevent the cold air from coming in there. A direct vent gas inserts is flued up the chimney but because it is a sealed firebox the cold air cannot escape back into the room. A properly installed range hood has two metal dampers to stop outside air from coming in. Remembering to keep the damper closed when the fireplace isn t being used will block the cold air that wants to enter your home.

That is the primary cause of cold air infiltration. One is at the top of the hood where it connects to the duct and the other is at the wall or roof cap where the duct exhausts its air. Warm air enters the top of the firebox gets chilled by the coldness of the box drops down the back out the lower louvers creating the effect of a draft if your contractor did not seal the doghouse this effect is greater. The damper that sits above the firebox should be able to close fully and make a tight seal.