With a piece of sheet metal you can turn a small smoker into a larger one by
making an extension piece to make it 4" taller. I used a piece of coffee can.
  I use wood chips mostly and the thing you need to do is to get the bottom
1/4 of the smoker rip roaring hot and burning before you add more fuel. Then
you can sift on about a double handfull of chips and give it a few pumps and
then fill it. I usually start my smoker with newspaper balls about looseleaf
sized and crumpled, half a dozen before adding chips.