Abstract: A safety device for a heating apparatus detects the errors of the input power-supply voltage, failures of the respective heating device and control device, and displays the detected failure and safety stops the associated apparatus. The safety device quickly and safely stops only a faulty heating function if the heating apparatus further has a plurality of heating functions, and allows the other normal heating functions of the heating apparatus to be used.

Abstract: A control system for cooking apparatus and which includes a programmed digital microcomputer responsive to a plurality of user selectable product keys individually capable of setting the cooking temperature at individually selected values and the cooking times at individually selected values.

Abstract: A combined cooker/smoker unit includes a partition dividing an open-topped container into a smoker compartment and a fuel compartment so that food can be smoked and cooked in the same unit without exposing that food directly to an open flame. The unit includes heat and mass transfer controls and an overall control for controlling the amount of heat and smoke to which the food is exposed and for automatically monitoring the conditions in the unit so that food can be repeatably and reliably cooked and smoked in an unattended manner. Alarms can also by included.