Energy -saving water heater's heating water tank

The utility model relates to a heat energy -saving technical field especially relates to an energy -saving water heater's heating water tank, the power distribution box comprises a box body, be provided with heating the water tank and storage water tank in the box, be provided with the connection water pipe between heating the water tank and the storage water tank, be provided with the solenoid valve in the connection water pipe, heating the water tank is provided with heating device, water level sensing device and the first temperature sensing device, water level sensing device includes level sensor and lower level sensor, the solenoid valve is connected with level sensor is electric down with last level sensor respectively, heating device is connected with a temperature sensing device, lower level sensor electricity respectively, the utility model discloses at the in -process of heating the water tank in the moisturizing for the heating device stop work, thus a large amount of wastes of electric energy avoi