1. Be sure to measure the furnace flue and flue liner before ordering the cover. 2. But what if one goes down the furnace flue and gets killed by the fumes, then blocks the flue? 3. He and Dubay also recommended an annual inspection of the furnace flue to make sure it is venting properly. 4. The round furnace flue and the fireplace flue are in the same chimney and only a couple of inches apart at the top of the chimney. |
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