| 摘要 |
PROBLEM TO BE SOLVED: To provide a storage type water heater that suppresses limitation of water boiling in a hot water storage tank while promoting sale of photovoltaic generation power.SOLUTION: A storage type water heater 1 includes: a heat pump unit 50 that is operated by power supplied from a power conditioner 151 and heats water in a hot water storage tank 11; and a gas heat source unit 80 that is provided in the middle of a hot water discharge pipe 13, and heats water circulating in the hot water discharge pipe 13 to a target temperature of supplying hot water. A heating inhibition objective time zone setting section inhibits operation of the heat pump unit 50, and sets a heating inhibition objective time zone being a daytime zone for aiming at increase in sales by the power conditioner 151 according to predetermined conditions. A tank heating control section 124 inhibits operation of the heat pump unit 50 in the heating inhibition objective time zone. |
