Version 1 has 4 Weber daisy wheel vents with 3/4" holes and an 18.5" kettle bottom for coals (think BGE) and I had much better drafting and the temps did not really fluctuate that much when I opened the lid and it steadily cruised at 250-275* for over 11hrs. It's a 35" drum.
#2 is a 38" 2 rack clone and I fought the temps every time I turned the ribs. I'm going to tweak it a little and keep see what develops. I put an ad on Craigslist and found a guy that deals in Bee pollen and Echinacea has a supply of unlined food grade drums. $20 each delivered!
Love that smell!
Brian - Left Hand Smoke BBQ PNWBA 2010 Team of the Year
BGE's/WSM's/BWS Gater/BDS Clones/Weber Performer w EZ-Que/Cajun Bandit/Rib-O-Lator Test Pilot/La Caja China/BBQ Guru/Weber 1000 RK Drum Coffee Roaster
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