To provide an exhaust heat recovery system capable of recovering exhaust heat from hot water of a bath tub or electric equipment to be reused effectively.
A refrigeration cycle system 5 is constituted by connecting a compressor 1, a condenser 2 for heat-exchange with water circulated through a heat storage tank 14, the first heat exchanger 3 for heat-exchange with the bath tub water, the second heat exchanger 4 connected in parallel to the first heat exchanger 3 for heat-exchange with outside air, and contraction means 7a, 7b, by piping. A refrigerant circuit is constituted to be switched between an exhaust heat recovery operation for operating the first heat exchanger 3 to store the hot heat of the bath tub water in the heat storage tank 14, and a heat storage operation for operating the second heat exchanger 4 to store hot heat absorbed from the outside air in the heat storage tank 14, and the hot heat stored in the heat storage tank 14 is used in a hot water using means 16. A latent heat storage material 15 is filled in an inside of the heat storage tank 14.
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
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