| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot water storage unit capable of being miniaturized.SOLUTION: A hot water storage unit 3 includes a hot water storage tank 120 which stores water for cooling heat generated by a heating element and to which water heated by the heat is supplied, a heat source unit 130 connected to a heater 10 and heating a heat medium to be sent to the heater 10, a selector valve 141 switching a first return passage for returning the heat medium from the heater 10 to the heat source unit 130 through a heat exchange portion 125 capable of exchanging heat with the hot water storage tank 120, and a second return passage for returning the heat medium from the heater 10 to the heat source unit 130 without passing through the heat exchange portion 125, and a controller for controlling the selector valve 141 on the basis of a temperature of the water stored in the hot water storage tank 120 and a temperature of the heat medium from the heater 10.SELECTED DRAWING: Figure 1 |
