One of the most pervasive causes of a stuck damper is rust often caused when rainwater enters the chimney through a faulty or nonexistent chimney cap.
Fireplace throat damper stuck.
Repairing a throat damper step 1 cleaning out the fireplace.
Often a damper becomes difficult to operate or sticks in one position.
First repair steps first brush the damper giving special attention to the hinges.
If the step above doesn t work you will need to clean the track that the handle runs in and the point where it is.
Your chimney professional will sweep the flue and remove the soot and debris that is piled up around the fireplace damper.
Corrosion and debris are the most common causes of stuck fireplace dampers.
Step 2 cleaning the damper.
Clean out the entire fireplace before you begin.
A good first step is to have the fireplace professionally cleaned.
If the prior two steps don t cure the stuck damper handle tap the handle with a sledge hammer.
The damper is a steel or cast iron door that opens and closes the throat of the firebox into the flue.
Take a steel brush or a handheld whisk broom and clean the damper and the area around it.
Step 3 removing the damper.