| 摘要 |
PROBLEM TO BE SOLVED: To provide a convenient washing machine without lengthening the time required for supplying water to a washing tank for purposes other than rinsing even when a heat exchanger is disposed between a water supply source and a hot water storage tank.SOLUTION: A dishwasher 1 includes: a drain water heat recovery device 50 for heating supply water W2 supplied from water supply 99 by performing heat exchange with drain water W1 whose temperature is higher than that of the supply water; first piping 55 for connecting the water supply with the drain water heat recovery device; second piping 56 for connecting the drain water heat recovery device with a hot water storage tank; and third piping 57 connected to the first piping at one end, and to the second piping at the other end, which allows the supply water supplied from the water supply to be supplied to the hot water storage tank without passing through the drain water heat recovery device.SELECTED DRAWING: Figure 6 |
