PURPOSE: To contrive to enhance the rise of hot water temperature and the temperature-raising characteristics at the time of low sunshine, by providing an ejecting direction varying device at a hot water ejecting part of a hot water circulating passage for circulating hot water from an upper part of a hot water storing tank to a lower part of the tank.
CONSTITUTION: A heat-transmitting medium contained in a heat collector 1 and heated by the solar heat is supplied into a heat exchanger 5 incorporated in an upper part of the hot water storing tank 4 through a circulating pipe 2 for the medium by a heat-collecting pump 3. When hot water at an upper part of the tank 4 is passed through the hot water circulating passage 6 and ejected from the hot water ejecting part 6a provided at a lower part of the tank 4 by operating a hot water circulating pump 7, water on the lower side of the heat exchanger 5 in the tank 4 is also heated. When the ejecting direction varying device 8 provided at the ejecting part 6a is operated, the quantity of water heated in the tank 4 can be varied.
TAKEDA YASUHIKO
HIRATA KATSUMI
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