Heating generates approx. 60% of the energy costs of an average household. To facilitate sustainable heating, smart solutions are required. Suitable for this purpose are the electronic actuator “mote 420“ with the “Multiblock T-RTL“ connection fitting which are installed on the bathroom radiator and communicate with the wireless thermostat “R-Tronic RTF B (ENOCEAN)” via a gateway (e. g. “wibutler“). Through automated processes optimally adapted to the consumption conditions, no unnecessary energy is wasted.