Laite huoneen lämpötilan säätämiseksi

摘要

The setting of a thermostat 13 is higher by a predetermined amount than the normal day-time desired value. The normal day-time desired value is obtained by heater 20 acting on thermostat sensor 17. A microprocessor 1 delivers a series of output data D each comprising the address of a zone I, II, III and a command specifying the electric power to be supplied to the heating resistors 20 in that zone. The power may be varied to give variable modification of the thermostat setting. The power variation may be applied so as to produce a gradual change in the desired room temperature.