Installing Airtight Fireplace Doors

What You'll Need
Airtight fireplace doors
Hand shovel
Garbage bags
Heat-resistant silicone caulk
Caulking gun
Utility knife
Stiff putty knife

Fireplace doors are used to prevent someone from getting too close to the flame and to prevent embers from escaping. They also prevent cold air from coming down the chimney and into the home. There is no such thing as completely airtight fireplace doors but some do come close. You can help to make fireplace doors more airtight by how you install them. Installing airtight fireplace doors is not a hard job to do but it is a job that requires attention to detail. The following article will explain how to remove and replace the current fireplace doors with airtight fireplace doors.

Step 1 – Safety

Installing fireplace doors is not difficult but working inside the fireplace comes with several potential hazards which you need to be protected against. You will be cleaning out the fireplace and dealing with creosote which can burn and even potentially explode. Dust particles in the form of soot can also be troublesome. Creosote is the black substance caked on the inside of the fireplace. It is a byproduct of the smoke settling on the surface. Use the putty knife to remove as much of the creosote as possible. Remove the inner rack and then vacuum away all of the debris.

Step 2 – Remove the Old Doors

Removing fireplace doors is not hard but it is uncomfortable and messy with a hint of danger. This is partly why you clean the fireplace out prior to replace the fireplace doors. Get on the floor and crawl inside the fireplace. Take the flashlight with you and use it to illuminate the back side of the fireplace doors. You will notice several clamps. These clamps hold the fireplace doors in place and there can up to 6 clamps. Use the screwdriver to remove the screws that hold the clamps tight. These clamps may also use thumbscrews. Turn them to left to loosen them. Pull the loose fireplace doors off of the fireplace frame.

Step 3 – Install the Airtight Fireplace Doors

Get on your back and then bring one of the fireplace doors with you. Set it up where it needs to be. You will need to use the flashlight again so that you can see what you are doing. Line the screw holes on the fireplace door up with the frame of the fireplace and then replace the clamps you already removed. Tighten the screws to affix the airtight fireplace doors to the metal frame of the fireplace.

Step 4 – Sealing

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. Use a wet finger to smooth out the silicone. Apply another line of silicone on the outside of the frame. Make sure you place it all around the frame.