The Bosch TR500115/18/21EB is an electronically controlled instantaneous water heater from the Tronic 5000 series, designed for efficient water heating. With a modern design and a user-friendly LED display controlled by a rotary knob, this appliance is easy to use. It has four temperature settings that allow precise adjustment of the water temperature. The innovative CLICKFIX plus installation technology ensures quick and uncomplicated installation. As an option, the appliance can be retrofitted with internet capability, which offers additional control and monitoring options. The instantaneous water heater is pressure-resistant and is ideal for installation above the sink or in the kitchen. With a rated output of 21 kW and a rated voltage of 400 V, it is powerful and efficient for covering domestic hot water requirements.