| 摘要 |
PROBLEM TO BE SOLVED: To provide a storage type hot water supply device capable of contributing toward supplying stable electric power by prohibiting boiling up in a power-saving time zone, in boiling-up control of the storage type hot water supply device.SOLUTION: A storage type hot water supply device includes: a hot-water storage tank 1; a heating means 2 for heating hot and cold water of the hot-water storage tank 1; a plurality of hot-water storage tank temperature detection means 12 located in a height direction of the hot-water storage tank 1 and for detecting a temperature of hot and cold water in the hot-water storage tank; and a control unit 13. In a power-saving time zone which is set by an electric power company, the heater is designed not to perform boiling-up operation of heating the hot and cold water in the hot-water storage tank 1 by means of the heating means 2. |
