The T6 is getting ready for its 17th heating season. Nighttime temps are dropping into the 40s. I cleaned the flue and when putting it back together, I couldn't find the gasket material I ordered last year that I was going to use for the baffle gasket. Bummer. Then I remembered I have a roll of stove door window gasket. It is adhesive backed and 1/8" thick. Time to innovate. I sliced the window gasket in half lengthwise and then pieced together a gasket. This got stuck onto the underside of the baffle. We'll see how this works out.