I would not be building a Smoker out of a oil drum because it is too thin of metal. Grill yes but no good for a smoker.
Smokin Blues BBQ
The Pigman (Roger) Pitmaster
KCBS CBJ #30390
Operation BBQ Relief Founding Member
Lang 84 Custom Longneck with Warmer
Char-Griller Pro w/ SFB and Mods
Mobil Food Lic. With State of Ohio