| 摘要 |
PROBLEM TO BE SOLVED: To provide a bath device having a plurality of bathtubs connected to one bath circulating circuit and capable of efficiently reheating the bathtubs individually without waste.SOLUTION: In the bath device capable of individually reheating a first bathtub 18 and a second bathtub 19 by one bath circulating circuit 17, a remaining hot water heat exchanger 33 is provided in the bath circulating circuit 17. During the reheating of one of the bathtubs, when a remaining hot water temperature in the other bathtub is higher by a predetermined temperature or higher than the temperature of bathtub hot water to be reheated, the reheating is performed while heat is absorbed from the remaining hot water by the remaining hot water heat exchanger 33. Thus, this enables efficient reheating without waste by using a remaining hot water heat quantity in the other bathtub. |
