The solidly constructed bathroom radiator can be used either as a purely electric device or connected to the hot water central heating system. In both operating modes, the radiator is ideal for warming and drying towels, as well as serving as a supplementary or transitional heater. Towels can be easily placed on multiple levels. The devices are operated simply and comfortably via a conveniently accessible electronic controller. The desired room temperature can be easily set on the control unit. The timely achievement of the comfort temperature is made easy and convenient by the programmable weekly timer with adaptive control as a learning function. For increased heating needs, a boost function is available for rapid heating at full power. The duration of the boost function can be set. The reduced temperature can be programmed. There is a variant with an integrated quick heater for fast room heating. The quick heater can be activated for the pre-selected heating duration.