We heat a 900 foot home in southcentral AK 90% with wood and a propane backup. We use about 2-3 cords per winter.
anyway we have a hole cut in the wall behind the stove. through the hole is a flange on the flange is a 3 inch dia. tube. from the small tube sticking from the inside of the wall is some 3 inch flexible aluminum hose into the intake at the back of the stove.
No backfire protection (I have never seen on with backfire protection)
I often see similar set ups sold as fresh air kits for pellet stoves.
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