First repair steps first brush the damper giving special attention to the hinges.
Fireplace throat damper stuck.
Corrosion and debris are the most common causes of stuck fireplace dampers.
The damper is a steel or cast iron door that opens and closes the throat of the firebox into the flue.
Clean out the entire fireplace before you begin.
A good first step is to have the fireplace professionally cleaned.
Take a steel brush or a handheld whisk broom and clean the damper and the area around it.
Your chimney professional will sweep the flue and remove the soot and debris that is piled up around the fireplace damper.
Step 2 cleaning the damper.
Repairing a throat damper step 1 cleaning out the fireplace.
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.
Remove all ashes from the firebox.
If the prior two steps don t cure the stuck damper handle tap the handle with a sledge hammer.
Often a damper becomes difficult to operate or sticks in one position.
More often than not if pristine sweeps is called in to repair a stuck or damaged damper it s what is known as a throat damper which is installed above the firebox at your chimney s throat.