We have a Whitfield prodigy pellet stove that we've been using for about 6 months and everything has been great so far. Recently we bought a ton of Corinth pellets...guy at the store recommended them. They seem to work good as they dont darken the glass as quickly as the lowes brand. I keep the pellets in my shed but it's been raining alot here lately and the air has been pretty damp. The other night the wife got up and shut the stove down....a horrible smell was going thru the house, like smokey, the glass was completely black and she thought the stove was going to catch on fire. I clean this stove regularly but when I cleaned it after this problem the soot was very thick and covered the entire inside of the stove. Would moisture of the pellets cause this problem or is there something else major going on?