| 摘要 |
PROBLEM TO BE SOLVED: To boil up hot water in a hot water storage tank by surplus power.SOLUTION: A heat pump type hot water storage type hot water supply device includes: boiling-up target temperature determination means 17 determining the boiling-up target temperature of hot water boiled up; boiling-up control means 18 controlling heat pump type heating means 13 so as to boil up the total amount of a hot water storage tank 10 at the boiling-up target temperature in a specific time zone; sunlight setting means 21 setting whether to install a photovoltaic power generation device 2 in parallel; and boiling-up target temperature correction means 22 correcting the boiling-up target temperature determined by the boiling-up target temperature determination means 17 in a case where the sunlight setting means 21 sets the photovoltaic power generation device 2 to be installed in parallel so as to become higher than that in a case not of being installed in parallel. When the sunlight setting means 21 sets the photovoltaic power generation device 2 to be installed in parallel, the boiling-up control means 18 performs boiling-up so as to secure unheated water at the lower part of the hot water storage tank 10 at the high-temperature boiling-up target temperature corrected by the boiling-up target temperature correction means 22. |
