FACTORY-BUILT FIREPLACES
Hundreds of variations.
One way to find the damper.
There are hundreds of different types of factory-built fireplaces. The damper sits where the smoke chamber ends and the flue begins — grab a flashlight and look up from the bottom of the firebox.
Your damper is the metal flap, usually 8 to 10 inches round. Some are square or rectangular. They have a handle you push up and pull down — hard to miss once you know where to look.
Because every part is metallic, factory-built fireplaces get softer brushes. Smoke chamber, damper, and firebox walls — all cleaned with hand brushes working from the bottom up. No scratched surfaces, no bent damper plate.