Question:

surefire furnace - smoke keeps backing up into the house -the size of chiminey is 8inch by 12 inch in brick.What can we do to down size the chiminey.THANK YOU.

Answer:

Installing a stainless steel liner from your furnace up the existing masonry chimney will reduce the smoke. However you will need to contact a furnace supplier to assist you on the diameter of the flue allowed on your surefire. Clint

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