I just seasoned my char-broil offset smoker 430. I thought I sealed it up good. However today I noticed that I went through a whole chimney of charcoal in about 2 hours. Is this normal? By the looks of it I will have to add charcoal every hour. I did buy some expanded metal to make a charcoal box and will try the minion method. Does the charcoal box make that much different? I know when I use my 22 inch weber and use the snake method I can keep it going for a good 4-5 hours before having to really bother it. Sorry if this sounds like a stupid question.