With the immersion heater timer (IHT), Zehnder has also considered applications in places such as hotels or public facilities. To precisely meet the requirements of these sectors, the immersion heater IHT was developed. On the one hand, it offers a smart home system with on-site control unit that allows the pre-setting of the running time of the radiator. On the other hand, it offers hotel customers or patients, for example, the option to activate or switch off the radiator beyond the pre-set running time. This provides an overview of the energy consumption and keeps costs under control.