Here's the original thread: http://www.hearth.com/talk/threads/strong-smoke-smell-filling-the-room-bad-install.93750/ Yes, I plan to trim the shrubbery around the exhaust later today. We discovered that the smoke was coming from the pipe inside the wall where it connected to the exhaust cap. They made that connection inside the thimble so we couldn't see it until we took it apart today. There was soot all over the seams where the 2 pipe sections came together. It was either defective or wasn't snapped together properly. All the old vent pipe was removed and replaced. Now coming from the back of the stove we have a 3" to 4" adapter, 12" pipe through the wall (I have a ridiculously thick basement wall), connected to a T, 4' vertical rise, 90 deg elbow, and the exhaust cap. The door was also adjusted to seal more tight and we double checked every vent pipe connection to make sure they were sealed. Now I'm just waiting for the silicone to cure so I can start burning!