So far so good, no smoke poofing into the house from the stove pipe, that is why we went with the double wall, we can't even tell there is a fire going except the warmth in the house. We were concerned that going with the double wall would cut down on the heat emitted by the stove pipe, but so far we can't really tell much difference. but we are not in the dead of winter yet. So far we are very pleased.
Reviewer: Greg F.
This is fine stove pipe - easy to install by just twisting together and it functions flawlessly. I'll never buy anything but Simpson products for my stove.
Reviewer: Susan O.
This is an excellent quality stove pipe and I would recommend it to anyone looking for double wall stove pipe.