| 摘要 |
PURPOSE:To improve the heat exchange efficiency of the shower unit by a method wherein the amount of heat discharged after a bather's taking a shower is transferred to water supplied to a hot water feeder by utilizing a characteristic peculiar to the shower in which hot water is discharged in a stabilized condition at the time of the bather's taking a shower. CONSTITUTION:The hot water feeder is of automatic temperature control type and constructed such that the hot water feeding temperature detected by a sensor 16 and the temperature set by a remote controller 17 are compared to each other by a controller 15 in the hot water feeder 7 so that the hot water feeding temperature is automatically controlled to coincide with the set temperature and a heat exchanger 18 is provided in a drain passage so that the amount of heat of the hot water discharged at the time of one's taking a shower is transferred to the water supplied to the hot water feeder. With the above structure, when a shower begins to be used, there is almost no discharge of hot water and the water supplied to the hot water feeder 7 is cold. Accordingly, the amount of consumption of heat by the hot water feeder 7 required for performing a supply of hot water of a suitable temperature does not change as compared to the conventional shower unit but when discharged hot water reaches the heat exchanger 18, the temperature of the supply water rises rapidly and as a result, the amount of consumption of heat by the hot water feeder 7 required for performing the supply of hot water of a suitable temperature reduces sharply automatically. |
