To provide a storage type water heater capable of easily keeping the inside of a bath-side circulation pipe conduit and the inside of a heat exchanger for reheating clean.
In the storage type water heater 150C capable of supplying hot water stored in a hot water storage tank 20 to a bathtub 170 and reheating the bath water by the heat exchanger 70 for reheating when a temperature of the bath water 170a in the bathtub is lowered, a fine bubble generating device 51 for circulation is disposed in the bath-side circulation pipe conduit 60 connected with the bathtub and the heat exchanger for reheating, a fine bubble generating device 87 for water injection is disposed in a hot water supply pipe conduit BL for bath for injecting the water to the bath-side circulation pipe conduit after guiding the hot water stored in the hot water storage tank to a hot water/water mixing valve (bath-side hot water/water mixing valve 80a) and mixing it with the water, the fine bubble generating device for circulation is made to intermittently execute fine bubble generating motion when the bath water flows to the bath-side circulation pipe conduit, and the fine bubble generating device for water injection is made to intermittently execute fine bubble generating motion, when the hot water/water flows from the hot water supply conduit for bath to the bath-side circulation pipe conduit.
COPYRIGHT: (C)2010,JPO&INPIT
Maruyama Masahiko
Takaaki Akaishi
Toshiyuki Sakuma
Mayu Sudo
Ken Takahashi
Natsuki Watanabe
Akira Miyashita
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| JP2006015285A | ||||
| JP2006284030A | ||||
| JP10300190A | ||||
| JP2007301281A |
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