Humphries units are reverse flow cabinet smokers. They have two styles of water pans, drop in and slide out. These units are designed to run with something in the water pans to act as a heat sink to help regulate temps. If water is not going to be used in the water pans, something else such as sand or fire bricks needs to be placed in the pans to help regulate the cabinet temperature. This will prevent the Flame Boss® controller from overshooting the desired set temperature.
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