The vertical electric dual-mode water heater is designed for small flats where there is no space for a conventional gas water heater. The space-saving design of the 25 litre unit is achieved by the low housing thickness of 23.5 cm. To make the product appear visually unobtrusive as well, a vertical orientation was chosen. The structuring of the front with the dividing line in the middle additionally ensures that the unit does not dominate the room.