Second year with my Empyre Pro 200 and I had been getting moisture at my lower ash door, I figured my main door was leaking because I would see smoke from time to time coming out . Tried upping the set point and playing with the differential and would help some but still got moisture and in my air box I got some creosote but it was just hard stuff that came out easy. The other day when it was warm I decided to replace the main door gasket with some rope already coated with silicone, it fit nice but took some adjusting to get the door to close right but I got it and it seals up real nice, no more leaking smoke out the door and no more moisture at the lower ash door. But now my air box is getting gooey liquidy creosote like it did last year. I'm not overloading it and i'm burning good dry wood. Plus I'm noticing that when I clean out the air box of the creosote it's peeling some of the metal off, like rust is coming off in chunks which has me worried. I thought I read on here that someone removed the flapper and it helped with the condensation. I was thinking of doing that but was worried that when the blower shut down and if the flapper was not there the fire might keep going. Any ideas? I love this stove except for the air box and the crap Im getting in there.