PURPOSE: To display room temperature more precisely by correcting temperature corresponding to amounts of stored heat during the time while a heat storage device and a heater are operating.
CONSTITUTION: When a heat storage device and a heater are operating, a plurality of temperature correction functions 41-43 corresponding to the amount of stored heat at the start of heat release is obtained to correct sensed temperature of a room temperature sensor based on the relationship between the amount of stored heat sensed by a heat storage sensor and sensed temperature of a room themperature sensor, so that a temperature correction function is selected out of the functions 41-43 thus obtained according to the amount of stored heat at the start of heat release. By this method, during the period that the operation is started and all of the stored heat is released, differences between actual sensed temperatures by the room temperature sensor and the correction temperatures shown by the selected temperature correction functions are displayed as room temperatures.
ITO TOMOHISA
ITO KATSUHIRO
