Q&A Sealing fireplace damper when installing Vent Free Log

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QandA

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Staff member
Nov 27, 2012
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Question:

We have a large fireplace that is missing the damper. As a source of additional heat to the pellet stove, we are considering installing a propane log unit. How do we seal the fireplace so that we can install the propane unit?



Answer:

If it is a vent-free log, you can install a sheet metal "pan" that fits tightly into the are below the damper. Make the pan 2" wider and deeper than the opening (at a level plan about 2" above the fireplace opening) and bend a 1" edge down. You can then use a lag or masonry nail to fasten the plate to the fireplace, although if you cut it right, it will stay up there just by friction.
 
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