| 摘要 |
PROBLEM TO BE SOLVED: To uniformize a temperature distribution in which the temperature of the bottom part of bathtub water is low and that of an upper layer is high when supplied hot water is heated by using the hot heat of the bathtub water by changing the supplying direction of the bathtub water. SOLUTION: The temperature distribution in a bathtub 9 formed during an operation can be uniformized by providing means 12 for changing the direction of supplying bathtub water to the bathtub 9. Thus, the hot heat of the bathtub water can be effectively employed for heating supplied hot water or the bathtub water can be efficiently heated. Further, the operating efficiency, reliability and durability of the device can be improved. |
