There is provided a heating controlling device having: a receiving section receiving heating instructions for plural heaters; and a controller that, when the receiving section receives a heating instruction to heat another heater while two or more heaters other than the heater for which the heating instruction is received are heating, stops heating of the heaters that are heating, after a first predetermined time period elapses from the control to stop heating, starts heating of the heater for which the heating instruction is received, and each time a number of second predetermined time periods elapses from the control to start heating, restarts heating, on the basis of predetermined priority rankings, of the heaters that were controlled to stop heating.