| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To stabilize a temperature of hot water of a mist sauna used in a hot water storage type water heater. <P>SOLUTION: In this hot water storage type water heater comprising a hot water storage tank 2 connected with a water inlet pipe 12 and a hot water supply pipe 15 and storing hot water, a control device 29 provided with a heat source 3 for heating the water stored in the hot water storage tank 2, and controlling boiling-up of the stored water, a hot water supply temperature and the like, a bypass pipe 16 bypassing from the water inlet pipe 12, a mixing adjusting unit 17 for mixing the water from the bypass pipe 16 and the hot water from the hot water supply pipe and adjusting them to a desired set temperature, and a flow rate sensor 19 and a hot water supply temperature sensor 20 disposed between the downstream of the mixing adjusting unit 17 and a hot water supply opening 21, the mixing adjusting unit 17 is feedback-controlled by the control device 29 so that the supplied hot water detected by the hot water supply temperature sensor 20 has the desired set temperature, and a starting time of the feedback control is variable on the basis of the flow rate of supplied hot water detected by the flow rate sensor 19, thus the hot water supply can be performed well at all times. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
