How do I stop cold air from coming through my gas fireplace?

One way to help minimize the draft is to install glass doors on the front of your fireplace opening. These glass doors will still radiate heat throughout the room, but will not allow the open flue to let in the cold draft. Another great solution for preventing these drafts is to install a direct vent gas insert.

How do you insulate around a gas fireplace?





How to Insulate and Air Seal the Wall behind Your Fireplace

  1. Insulate the exterior wall enclosing the fireplace and chimney to the top of the second floor ceiling with rigid foam exterior sheathing taped at the seams and sealed at the edges. …
  2. Install fire stop blocking.

Why is there cold air coming from my gas fireplace?

Cold air comes from the gas fireplace when there’s a flue or air intake in the firebox. This is designed to maintain airflow but can lead to cold air coming in. To fix this, find the flue in the firebox, inspect the clamp, and remove it. Now close the flue to make sure air does not come in.

Can you insulate around a gas fireplace vent pipe?

No, you cannot wrap any type of vent pipe or chimney.

Do direct vent fireplaces have dampers?

What is this? Ventless gas fireplaces, which vent waste air back into a home, and direct vent gas fireplaces, which vent waste air directly outside of a home through a vent in an external wall, typically won’t be found with dampers.

How do I make my fireplace less drafty?





7 Other Ways to Fix a Drafty Fireplace

  1. Check the seals around your flue damper. …
  2. Insulate your chimney. …
  3. Install a heat-exchange system. …
  4. Replace the damper. …
  5. Consider a chimney cover or cap. …
  6. Consider a fireplace insert. …
  7. Have your chimney inspected by a certified chimney sweep.


Should you insulate behind gas fireplace?

Always follow the manufacturer’s instructions when insulating a gas fireplace. Properly insulating gas fireplaces is critical to preventing cold air penetration, which can lead to moisture buildup and mold growth when the cold air meets the warmth of the fireplace.

Can you put insulation around a fireplace?

A fireplace insert is generally more energy efficient than a traditional fireplace, but still requires insulation. Insulation should be tucked around all sides of the firebox and the flue.

Can you use spray foam around fireplace?



To keep a fireplace working properly, never use spray foam on the inside of the fireplace or the chimney, or on the damper. On the exterior surfaces of the fireplace and chimney, spray foam is fine because these surfaces won’t get hot enough to melt it or to cause any damage.

Can insulation touch gas fireplace vent?

Insulation in the chimney should never come in direct contact with the vent pipe because it poses a fire hazard. If cold air seems to be coming into your home through the fireplace, you might want to install a chase around the chimney on your roof or check the insulation in the existing chase.

Can I put drywall around a gas fireplace?

We talked to the experts, and this is what we discovered. It would be best if you did not use regular drywall around a fireplace as it is considered to be highly flammable. Instead, it would be best to surround the fireplace area with non-combustible materials such as stone, tile, marble, or metal.

How hot does a direct vent fireplace vent get?



Once the fireplace is up and running, the glass panel can get very hot. Hence the protective screen that is placed in front of the glass. The area surrounding the fireplace can get hot as well when a fire is burning—in some cases, it can get as hot as 190 degrees.

How long can you run a direct vent gas fireplace?

In short, you really shouldn’t let a gas fireplace on for too long—specifically more than three hours at a time.

How do you vent a direct vent fireplace?

Quote from the video:
Quote from Youtube video: Make sure that the dimples on each pipe align with the channels on the flue collar. And firmly twist the pipe clockwise until it stops. Moving double check the connection by pulling up on the pipe.

When should I close my fireplace vents?

You should close the damper on your fireplace once the fire and embers have all burned out. This prevents warm air in your house from escaping out the chimney. You should open the damper before lighting a fire and close it once the fire is done burning.

Should the damper be open or closed on a gas fireplace?



wood or gas . . . . always fully open the damper. If you’re burning wood, keep it fully open until all the burning embers are completely burned out. If it’s a gas log set, turn off the flames before the closing the damper as far as possible.

Do gas fireplaces have dampers?

Traditional wood or gas fireplaces have one of two types of dampers. Throat dampers are installed at the base of the chimney, over the firebox — the main chamber where the fire burns. They’re usually opened by a handle, a crank or a chain located inside the fireplace.

How can I get more heat from my fireplace?

Turn Up the Heat: Tips to Follow

  1. Install a Fireplace Insert. …
  2. Use Glass Doors. …
  3. Use a Chimney Damper. …
  4. Get Chimney Fans. …
  5. Only Burn Dried Firewood. …
  6. Use Smoke and Carbon Monoxide Detectors. …
  7. Keep Combustible Materials Away from the Fireplace. …
  8. Clean Your Fireplace Regularly.

How do I get more heat out of my vented gas fireplace?

How to Get Maximum Heat Output From Your Gas Fireplace

  1. Setting thermostat to the maximum value.
  2. Ensuring flue damper and fireplace are well sealed to prevent warm air from escaping.
  3. Using a blower to spread warm air evenly throughout the room.

Do fireplaces make your house colder?



The standard fireplace is among the most inefficient heating devices you can operate. In fact, it can be so inefficient that in some cases it actually makes your house colder.