fireplace and outside air
yeah, I figured that.
But even if I did that - what about backfire protection, vent size, a cold air pump...?
I can't believe I'm the first bozo to ask this question and the firplace insets I've seen, those with double jackets/fans, all pull warm combustion air!
You can literally feel the draft of combustion air being pulled up the chimney in a fireplace. Old friend, former Marine gunny, comes into the house one fall, fire burning crisply, and announces: "fire for effect!" How true.
I'll continue my search and add to this thread as fact arise...
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