Step 1: Materials
Large box. I used a 21"x21" x 30" box. (Hot box)
Small cabinet (Cold box)
Strip foam window sealer.
Electric hot plate
10" iron skillet
9" Al pie pan
Smoking chips, (Hickory, mesquite, etc)
Long Al dryer exhaust. I got 20' but that may be overkill. Don't use the plastic ones.
Dryer exhaust adapter
Hose clamp for adapter
Computer fan (12v, 5v)
Power supply for fan, matching voltage
1" Pipe U bolt (2)
Drill bit for making holes in cabinet. I used 25/64" but anything in the ballpark is fine.
Clear box tape
Box knife, or something thin and sharp for cutting the cardboard (Hot box)
Hole saw, to make the large hole in the cabinet (Cold box)
Dremel, to clean up large hole
Smoking chips (Hickory, Mesquite, etc)
Anything you want to smoke