I burn my stove 24/7 and it is 4.5 years old. This past weekend I heard a pop and entered the room to find the door to the stove open. I had a similar experience last season in the middle of the night. I clean the stove regularly and have no other major issues. When the door latches it seems pretty tight. Has anyone else had this happen? I am not accepting my wife's idea that the house is haunted.