heavy hammer
Minister of Fire
I do not have any combustible materials in my setup it's the block wall in the basement with a masonry thimble going through the wall into the fireplace base where they started the clay flues going up. At the first floor the flue is cut on an angle so it can be pushed to the left to make room for the fireplace and the second clay flue stack in the masonry chimney. The first floor fireplace was inspected and the damper removed so a pacific energy insert could be installed. Now that has an insulated 6 inch flue liner. The masonry part there was still in great shape but for code and according to pacific energy and the dealer a liner is needed and and insulated one is recommended if possible. But back to the basement setup I hope I am explaining how the stove is connected to the masonry chimney and how the chimney is constructed with the thimble through the 12 inch block wall. I hope this helps