Humphrey's Hot Box - CranberryMeet the Hot Box The Vertical Drum Smoker, Reimagined. Humphrey's Hot Box Smoker brings you the power, simplicity, and airflow of a classic vertical drum smokerbut with smarter features and serious upgrades that pitmasters demand. No more lifting your whole lid just to check fuelour design features a separate firebox access door, so you can manage your fire without disturbing your cook. The pull out, all in one firebox includes an integrated ash pan,