FEED HOT WATER RESERVATION SYSTEM

PURPOSE:To easily enable feed hot wafer reservation with miniaturization and cost reduction of feed hot water by preparing centralized heat supply equipment which supplies heat in each hot water storage tank with the preparation of hot water storage tanks in each dwelling. CONSTITUTION:A central controller 13 calculates a reservation condition of each dwelling A whether or not quality of heat supplied from centralized heat supply equipment 9 is sufficient, a heat supply pattern for automatically supplying heat through a heat medium from the centralized heat supply equipment 9 to a heat exchanger 3 of a hot water storage tank 2 of each dwelling A, and supply of the heat medium of high temperature is preferentially performed for the heat exchanger 3 of the hot water storage tank 2 of the dwelling A reserved from the centralized heat supply equipment 9. Therefore, water supplied in the hot water storage tank 2 from a feed water pipe 4 is heated. In each dwelling A in the case where it is doubtful whether sufficient hot water is prepared in the hot water storage tank 2 up to reserved time a heat supply pattern, a feed hot water preparing quantity, hot water supply time or feed hot water state is confirmed by an information terminal 6 in the dwelling, a feed hot water plug 5 is handled and hot water is supplied in a both 1.