[ASKNACHI]This question was posted on AskNACHI.org by J. Lawson (from Seaford, VA). [/ASKNACHI]I saw your questions on line and figured I would contact you for a possible answer. I have an oil fired furnace that is about 3yrs old. When it was installed the barometric damper was installed but no weight was put on it, that I figure is utilized to control it. I am having a problem with the opening for the damper that is in the garage spitting oil soot out of it and into my garage getting on whatever I have around the damper or below it. Why is it blowing soot from the damper hole and how do I get it to stop blowing the soot out of the damper area and into my garage? I was a certified chimney sweep for about 12 years so I understand somethings but I have no experience with the barometric dapmers.