Originally Posted by Bludawg
Establish a Coal bed and feed it Wood maintain a Small hot fire. Off set cookers don't run well on Charcoal Especially the stuff in the RWB poke with that "K" word on it. Make sure the base of your fire is at or above the middle of the intake. Keep the stack WFO.
Charcoal doesn't burn as hot as wood, creates more ash that will clog the airflow under the fire grate and is not the proper fuel for an offset cooker.
Follow Bludawg's advice. Start with some lump for a quick coal bed and then feed it nothing but splits from that point forward.