This smell starts when the room air blower turns on. During start up I get the firebox that has the smoke until ignition and smell nor see nothing. There are only 3 joints that I have, adapter to stove, 90' elbow to adapter, 2ft double wall Simpson duravent to 90' elbow. Thimble and oak are sealed. All the joints are heavily sealed with high temp silicone. I took a flame around the door and didn't see it being sucked in at all. The only thing that is not taped or sealed is the oak flex pipe to the adapter on back of burner for fresh air. Could this be what is causing this? I have a plug in and a digital Carbon monoxide detector in the room where the burner is. The digital one reads zero. I am getting stumped on where this is coming from. I did a search on this topic and read a few possibilities but none to which helped me. Thanks for the suggestions. I have a country flame crossfire. Stove was cleaned on Wednesday. I probably only have 10 bags thru it so far.
Greg
Greg