Been burning my Oslo for a couple months now. When I first got it, the thing was so tight, the fire would go out if I hadn't hit 250 F+, even with the setting all the way open. Recently it's been a lot easier to start, plus whereas I could not previously get a fire beyond 500 F, I have to dial back on the damper or risk an overfire now. I believe I must have lost a little cement sealant somewhere. Has anybody had this issue, and do you know where you lost the sealant from, so I can take a look at those areas which might be causing the stove to run hotter. Not even sure if this is a problem.