What are these holes in my gas fireplace?
I’m thinking about fabricating some sheet metal inserts for a fireplace project (see pictures here). Depending on how I engineer it, I may cover up some of the holes on the fireplace (see the last two pictures in the link above). What are these holes for? Venting?
It’s a woodburning fireplace with a full flue and a gas outfitting (on the bottom).
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