A fireplace damper is generally located just above the firebox and below the flue. A fireplace damper closes the throat or flue of the fireplace to help prevent a cold draft - air from entering your home. The damper also serves as means of closing off the chimney in the event of a chimney fire. Types of dampers vary depending on the fireplace type - masonry or factory-built, manufacturer and model.
Fireplace Damper Repair Service
Fix Cold Air Draft From Chimney Problem
A masonry fireplace damper has it's purpose, but the design and the way a masonry fireplace functions often creates a draft - cold air entering your home. Installing a top sealing damper will seal the flue at the top, limiting the cold draft that would otherwise enter.
NBC 9.22.6. Damper
18.104.22.168. Required Damper and Size
1) The throat of every fireplace shall be equipped with a metal damper sufficiently large to cover the full area of the throat opening.
Top Sealing Fireplace Damper Rain Cap Installation
A top sealing fireplace damper with a rain cap will seal the flue at the top of the chimney, and will help prevent cold air from entering your home when your fireplace is not in use - energy efficient. These top sealing dampers are also a chimney rain cap, and serve to protect the interior flue and flue liner from rain and water damages.