24-1: Open Swing Handle Damper with a Horizontal Bracer Bar
24-2: Open Swing Handle Damper with High Flue Tile
24-3: Chimella Installed in Flue Tile
24-4: Chimney Flue Measurement
24-5: Open Swing Handle Damper with No Bracer Bar
Fireplace #24: Swing Handle Damper and High Flue Tile
These Swing Handle Dampers are very common in masonry fireplaces of solid brick or stone. These are their characteristics:
They have a long rectangular sheet iron damper frame and matching door.
The door has a straight cast iron handle sticking down. (image 24-1 and 24-5)
The handle swings forward and back.
All of the hardware is welded or bolted and is not removable.
The damper door is almost straight vertical when closed.
In this particular application you can see through the damper opening (image 24-2). The flue tile terminates a vertical distant of over 4 feet above the damper . This makes for a very tall smoke chamber, and tricky access to the flue tile, since it is out of hands reach. Also with the damper opening being almost vertical, it makes for limited access through the damper. However, there are both above the damper and below the damper install options for this application.
If you use the fireplace regularly, use the Chimella
24-6: Chimella install options
If you are looking for the easiest product to take in and out of the flue, the Chimella is the best option. But the Chimella’s spring loaded extending handle is only 24″ long. So select an area within 24″ of your reach in the flue tile or smoke chamber to make your measurement. (image 24-6)
Here are the Steps:
You will need a folding carpenters ruler folded into an L shape, or a builders T square to measure the flue tile (image 24-4) or the upper smoke chamber.
The Chimella sizes to fit when opened in the flue, so you don’t have to be exact with your measurements.
It is better to have a Chimella that is too large, than one that it too small in this application.
If the hole you are putting the Chimella in is less than 16″x16″ in width and length then use the Standard Size Chimella.
If it is bigger than 16″x16″, but less than 19″x25″, then use the Large Chimella.
It is important to open a Chimella properly when installing, so it gets a tight fit. Here is a Video to see how the Chimella works. Pay close attention the the part of the video about tightening the collar with the purple dot on it.
If you want to plug it and forget it, use the Flueblocker
24-7: Flueblocker cut for handle
If you have the swing handle damper that does not have and horizontal bracers (image 24-5) you can use a Flueblocker. Especially if you don’t use your fireplace very much, and you just want a way to plug the flue tightly for a long duration. It seals and insulates very well. You can tuck it in the peaked area below the closed damper. (image 24-7)
Measure the length and depth of the peaked area below the damper door.
Order a Flueblocker that is a a few inches larger in both dimensions.
With the damper closed, press the Flueblocker into the space below the damper.
Cut a slot in the Flueblocker to allow the damper handle to come down thru the pad. Image 24-7 shows an example of this with a side handle, but it can be done for a center handle as well.