Q&A Sealing fireplace damper when installing Vent Free Log

QandA Posted By QandA, May 26, 2007 at 6:39 PM

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  1. QandA

    New Member 2.
    Staff Member

    Nov 27, 2012

    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?


    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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