| 摘要 |
PROBLEM TO BE SOLVED: To provide a bath device having a plurality of bathtubs connected to one bath circulating circuit and successfully performing hot water filling in the plurality of bathtubs even when set temperatures vary.SOLUTION: When simultaneously filling hot water in a first bathtub 18 and a second bathtub 19 at different bath set temperatures, a control circuit 30 makes a bath mixing valve 8 perform mixing in accordance with the lower set temperature to fill hot water in the bathtub with the lower set temperature via a return three-way valve 26 from a return pipe 21 and to fill hot water in the bathtub with the higher set temperature from the return pipe 21 through a bath heat exchanger 20 and via a going three-way valve 27 from a going pipe 22. Thus, even when the two bathtubs have different hot water filling set temperatures, boiling can be efficiently performed for a short time by the hot water filling at the respective set temperatures, to achieve extremely good usability and safe use. |
