This morning I put wood in the cook stove like I normally do and had the ash pan door open to get the wood going. I went about making a pot of coffee and all of a sudden poof and ashes came out the bottom and through the side vents. Then I had this roaring fire in there and stuff was crackling up the pipes. It scared the you know what out of me. Anyone know what caused this :help: ??? I shut the bottom door and I went out to make sure there were no flames coming out the chimney.