Hello my name is Robert and I smoke meat. I have been reading this forum for a while and find the information very useful. I use a Char-Broil that I have been modifying. With this introduction I have a question. I smoked two butts yesterday and found something unexpected while cleaning the smoker. I lowered the wood box until it is about an inch and half above the burner. When I emptied the wood box I found it covered on the bottom and sides covered with soot. My question is this normal if the box is to close to the burner or is this an indicator that there is a problem with the burner. Thanks in advance Robert.