Chimney Throat Damper Installation

Clean out the entire fireplace before you begin.

Chimney throat damper installation.

Here s what you can expect a throat damper to look like. The larger the fireplace opening the larger the flue. These types of dampers aren t designed to seal as tightly and can also rust or corrode making them slide off track if they come in to contact with too much water. This cost estimate deals with the replacement of a fireplace throat damper door and frame if.

Repairing a throat damper step 1 cleaning out the fireplace. Remove all ashes from the firebox. Knoxville homeowners can contact four seasons fireplace chimney for traditional throat damper repair though damper replacement is sometimes the better option. Provide a cast iron damper cast iron ash dump and cast iron cleanout door for permanence.

When the fireplace is not in use the damper should be turned in the shut or closed position to prevent the cold air from entering into the room or the home. A traditional fireplace damper will usually be positioned just inside the base of the chimney called the throat of the chimney at the top of the fireplace. Throat dampers are located inside of the chimney above the firebox and use a metal plate as a seal. Modern insulation often makes the house so air tight that the fire does not have sufficient air for combustion.

Top sealing dampers when replacing your existing damper a product now available on the market is called a top sealing damper where the damper is actually located at the top of the chimney controlled by a cable that reaches down the chimney which prevents heated air in the winter from being lost up and out of the chimney. Take a steel brush or a handheld whisk broom and clean the damper and the area around it. After you have it through the damper re form the very end of the liner back to round with your hands so the connector will fit. Once you have the liner ovalized install that end first down the chimney flue.

This allows the damper to be hidden from away from view but also easily accessible from within the fireplace. Common products used in installation rock flex stainless steel chimney liner kit. Leave a minimum of 1 4 between damper and masonry for expansion and contraction of damper. Often times if these are installed in a chimney homeowners will install a top.

Step 2 cleaning the damper. A top sealing damper is installed over the chimney top and it creates a secure lid that effectively prevents an air exchange through the chimney.