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john70t john70t is online now
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Join Date: Aug 2001
Location: midwest
Posts: 40,518
I read somewhere that if the fire is too small, and the chimmney is too tall and wide, the rising air cools down, stops, and can reverse the flow-with a very bad outcome.
Not sure of the engineering specifics, but it may be something to consider.

Make sure to clean it regularly and don't burn the treated or painted lumber.
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Old 01-26-2008, 09:09 PM
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