We have an FPX44 and have been noticing that we get pieces of soot (film-like) that come out of the flue and blow around. They not solid enough to pick up but when you try the pretty much just disintegrate in your hand. the flue is properly capped and screened. Not sure what this is from. We burn a mix between pine and local hardwoods and typically burn in the 800f range with sometimes bumping up to the 1000f range. I do also damper it down for slower burns.
Any ideas?
Any ideas?
