Tried something today and was quite pleased. Since I don't have storage yet I get a lot of idle time and the big creosote cycle in the upper chamber. My upper door gasket gets more than I would like, gets hard and eventually has to be removed and cleaned because it starts leaking smoke. I have taken the original gasket out once, cleaned it, and re-used it for about a year. It only required new gasket cement and a single turn of the hinge bolts to get a good seal. I then ordered a high density 1 1/4" gasket and recently replaced the original gasket. The first time I cleaned the gasket was with a propane torch and a goodly amount of time. Today I let the EKO clean it's own gasket. When the boiler went into idle I turned it off and positioned the old gasket on top of the U shaped blast blocks in the secondary and left the gasket there for a couple of hours while the boiler did it's usual thing. The cleaning appears to have been gentler than the propane episode and certainly did not try my patience. The gasket is soft to the touch and flexible even after it has cooled and looks fit enough to re-use again. Of course this would not have been possible without the replacement gasket so it was a needed expense but it now looks like I can clean and re-use the new gasket when the time comes and save even more. Something to try...Stay warm