Electronically controlled basic instantaneous water heater without controls. Particularly low switch-on water volume from 1.5 l/min thanks to innovative water flow technology. Particularly air-resistant heating system thanks to innovative heating channel arrangement. Automatic adjustment of the output to the flow volume and inlet temperature, outlet temperature set at the factory to 50°C, the outlet temperature can be adjusted in the device between 30°C and 60°C. Bare wire heating system IES® ensures a longer service life, less calcification and is efficient and easy to maintain. Electronic safety system with air bubble detection, temperature and pressure shutdown. Variable connection options