5 out of 5HardThis is a job best left to the pros
About $1,000 and up
6 to 8 hours
In this video, This Old House host Kevin O’Connor creates a safe wood-burning fireplace.
Steps for Installing a Chimney Liner and Damper
- Spread canvas drop cloths on the floor in front of the fireplace.
- Use an electric chipping hammer to remove some brick from the rear wall of the fireplace.
- Clean the interior of the chimney flue using an electric drill and flue brush on an extension shaft.
- From the roof, insert the stainless steel liner into the chimney and feed it all the way down to the fireplace.
- Pull the flexible liner into the room and attach the mesh base plate.
- Have helper on roof raise the chimney liner to the correct height, then from inside the fireplace flatten the mesh base plate with a rubber mallet.
- Screw the mesh base plate to the fireplace walls.
- Mix a mortar in a 5-gallon bucket using a drill and mixing paddle
- Spread mortar over the mesh base plate inside the fireplace. Smooth the mortar with a paintbrush.
- Replace the bricks removed earlier from the rear fireplace wall.
- Add a little water to poured-in insulation and mix thoroughly.
- Pour the mixed insulation all around the chimney liner, smoothing the top with a trowel.
- Slip the stainless steel top plate over the chimney liner and secure it with high-temperature silicone sealant.
- Tighten the hose clamp to secure the top plate to the liner.
- Install a top-sealing damper to upper end of chimney liner. Drop the cable down the liner and into the fireplace.