The 7″ Immersion Water Heater Thermostat Tesla TS220 is a high efficiency storage tank water heater designed for indoor use. With a sleek blue design, this corded electric water heater features a brass lining and a thermostat for precise temperature control. At 7 inches in height and operating at 240V with 15A of power, this water heater is energy efficient with an A rating. The Tesla brand ensures quality and reliability in providing hot water for your home heating needs.