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

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 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.

Why is my fireplace so drafty?

If you have the damper closed, but cold air still sweeps across the room, it’s very likely that your damper is worn, cracked, warped, or generally degraded. Replacing the damper may help eliminate some of that cold air, at least for several years until it wears down again.

Why is it so cold by my gas fireplace?

Gas fireplaces are leaky for cold air and rarely installed correctly to mitigate it as most are done by lazy builders. This creates a draft you feel. Keeping the pilot on helps to mitigate this. You could also plug/cover the vent from the outside BUT MAKE SURE no one ever turns it on.

How do you weatherproof a gas fireplace?

How to Weatherproof a Fireplace

1. Apply heat-resistant caulk around the fireplace hearth.
2. Ensure that the seal on the fireplace damper, when closed, is snug and secure.
3. Adjust the size of the damper opening to the size of the fire you plan to build: a narrow opening for a small fire and a wide opening for a large one.

Can I insulate around my gas fireplace?

Insulating Gas Fireplaces Heatilator gas fireplaces can be vented through the top or the side. A built-in insulation basket is included with the fireplace around the vent. The fireplace itself is heavily insulated and you should not install insulation into the walls surrounding the firebox.

What should I use to seal my fireplace?

While polyurethane does have its strengths related to its fairly low price, silicone is by far the superior choice when choosing a chimney sealer. Silicone is an inorganic substance that has high toughness against temperature fluctuations and UV rays.

Can I seal up my fireplace?

You can seal off an unused fireplace by installing wood or light-gauge metal framing, insulation and drywall over the entire wall or opening. If you intend on using it in the future, install an insert constructed out of 2″ rigid foam board glued to MDF. Seal around the insert using neoprene backer rod insulation.

How do you seal a fireplace vent?

4 Answers. If it’s really not being used, I’d cover the vent itself in plastic from the inside wall (staple and caulk it to make it weather tight) or some other seal. Then you can just place a standard piece of fiberglass insulation with the vapor barrier (paper backing) facing inside the home.

Can I use expanding 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.

How do you fill a gap between a wall and a fireplace?

You can fix gaps between brick fireplaces and sheetrock.

1. Measure the size of the gap between the drywall and the brick.
2. Use 1/4-round trim molding that’s wide enough to cover the space of the gap.
3. Place a tube of acrylic caulk into a caulking gun.
4. Replace the caulk in the caulk gun with a tube of construction adhesive.

Should you caulk around fireplace doors?

A sealant around a fireplace insert keeps drafts out and heat in. Heat, though, can often be lost not only via drafts coming down a flue but also from small gaps and crevices between a fireplace and its insert, a decorative barrier added for safety.

How do you fill a gap between stone fireplace and wall?

Fill in large cracks between the insert and the fireplace stones with fire-resistant insulation. This helps your unit work more effectively. Push the insulation in with your fingers, making sure the unit is turned off and cool. Use insulation rated to at least 1,200 degrees Fahrenheit.

How do you fill gaps between stone and wood?

If the gaps are any larger, you can get what is called “backer rod”, which is a long rod of foam which you can stuff with a 5n1 tool into the crack. Follow that with a good quality of caulk. I probably would go with a paintable silicone product, but not pure silicone, as paint will not stick to it.

How do you seal gaps around a fireplace door?

Foam Insulation Use can use polyurethane foam for foam insulation for your fireplace door. This is the most widely used form of insulation in the market and a preferred choice for fireplaces. This foam insulation is very good in sealing little or large gaps that exist in a chimney door.

How do I make my fireplace door airtight?

Since airtight fireplace doors are not truly airtight you can go out of your way to make it more airtight. To do this you will be sealing it from the inside. Use silicone caulk that is rated for high-temperatures. Apply a line of caulk around the frame on the inside.