No. I tried that. The problem with the propane tube is there is really only airflow right at the end of the tube itself, and it is very minimal. The actual flames from the propane tube almost go to the end of the tube when it is on high, so you just charr the beans to bits in seconds. I tried with the chamber directly on the tube, 1' above it and 2' above it. No dice, just charred beans. The air from the propane tube alone might have moved 1/6 of a pound.