Here's the deal... The weather here in MA has turned a bit chilly lately so I decided to clean out the stove and get her ready for the Fall. This is the third season with my Jotul Kennebec insert and I am anticipating my first burn! Anyways, I was in a cleaning mood today so I opened up the doors to check the inside and what I discovered was pretty disappointing! I immediately noticed surface rust everywhere from where the door gasket met the face, inward. Surface rust I can deal with, but the interior was a different story. I started poking around with the vaccum and big chunks of rust started dropping off! What immediately concerned me was the amount of rust. Is this normal? I didn't notice any of this last season. I removed the cast iron "re-burn" plate that sits between the burn chamber and the flue pipe and it was coated with caked-on rust. Big chunks were easily flaked off! What I did notice was that the base cast-iron seemed to be intact, or at least it appeared that way. What I'm concerned with is the cause of this rust. I'm guessing it was caused by trapped humidity from the summer months. So here's are some questions... Should I bother to clean and paint over the external surface rust? Do cast iron stoves normally rust like this? Should I be leaving the doors slightly ajar during the off-season? How about putting a container of moisture absorbing pellets inside during the summer? Any suggestions are appreciated. Thanks.