The water-heating device has an efficiency of up to 99%, thus implementing nearly all of the power with no losses. This is made possible by the so-called layer technology which Webasto is now using in heating devices for the first time. Another highlight: The heating device does not contain rare earth elements. As there has been no uniform battery voltage for electric vehicles to date, the device is conceived such that it can be utilized in areas between 250-450 V with no performance losses. The continuously adjustable heating power ranges from 0.2 to a maximum of 5 kW. The high-voltage heater weights only 1.9 kg and is distinguished by its extremely compact design. All connections are attached to the front side, enabling fast and easy plug-and-play assembly. The electric water-heating device is developed for standard equipment and can be installed in all hybrid and electric vehicles.