I have a propane smoker. It is the smokey mountains one from Wal Mart. I have had it for over a year and a half and use it atleast once a week religously. I have an eight-ten inch cast iron skillet that i use to hold my wood. I use hickory wood chunks each time. I don't soak the chunks and never have, and have never had any problem and it has yeaided GREAT results. Recently i have been having a problem where the wood catches on fre. if i don'c check on it ever 30 min or so, it could catch fire and the heat screams up really high. Is there any ideas that you may have that can help me prevent this problem from continuing. Any help would be great. One of the greatest things about this smoker is i can set it and forget it for hrs and only need to change the chunks once and a while. Any help would be great. Thanks.