The Bosch US12 Tronic 3000 electric tankless water heater is designed to provide an endless supply of hot water to kitchen, bathroom, and handwashing sinks. This 12 kW electric heater eliminates long waits for hot water by using a dual chambered copper heat exchanger. The unit runs at 98% thermal efficiency, so stand-by loss is minimal. This model features on-unit thermostatic control, so you can set the water temperature to your desired range. Plus, it mounts on the wall in any direction and is compact and lightweight, making it a great choice for a variety of spaces. With its top performance specifications and versatility, the U12 Tronic 3000 is a great way to get the hot water going in kitchens, offices, at warehouses, service stations, stores, and concession stands. This item requires professional installation and hardwiring and is only designed to operate on an electric voltage of 240.