| 摘要 |
PROBLEM TO BE SOLVED: To integrate a heat accumulating tank and a bath water circulation cleaning unit for a heat accumulating type bath which is usable for twenty four hours equipped with the heat accumulating tank which is a separate heat insulating means, with a bathroom by forming them into shapes with a degree of freedom, which can be installed in an excessive space such as the inside of an apron or a body washing place of a unit bath. SOLUTION: This heat accumulating type bath which is usable for 24 hours comprises a bath water purifying-circulating unit A comprising a circulation pump 1 to circulate a bath water, a sterilization device 2 to sterilize the bath water, and a filter device 3 which filters impurities comprising fine refuge and foil, from the bath water, and a bathtub 9 having a heat accumulating tank 11 which can heat water by a power source, and an excessive space 10 around or on the lower surface side of a bathtub main body 9a. Then, the bath water purifying-circulating unit A and the head accumulating tank 11 are housed in the excessive space 10. Then, when the temperature of the bath water in the bathtub 9 descends by a set temperature, the descent is detected, and the bath water is controlled to be at a set temperature with a heat accumulating hot water in the heat accumulating tank 11.
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