| 摘要 |
PURPOSE:To enable keeping of a constant temperature with a less amount of energy, by a method wherein a hot water circulating device and an auxiliary heater are installed. CONSTITUTION:A circulating pump 8 and an auxiliary heater 9 are installed in a bath 1, and water fed through a faucet 4 is heated to a suitable temperature by means of an external bath furnace 2. Said hot water is enforcedly circulated through a circulating pipe 6, the circulating pump 8, the auxiliary heater 9, and a circulating pipe 7. Hot water 5, which is heated to a proper temperature by means of the external bath furnace 5, is heated by means of the auxiliary heater 9 while it is circulated by the circulating pump 8. Adjustment, which is the result of a difference in a radiation heat amount being produced due to atmospheric temperature and a period of time required for bathing, is performed by adjusting a rotative speed of the circulating pump 8. This permits the improvement of an energy efficiency of an auxiliary heater having a small capacity. |
