| 摘要 |
PURPOSE:To realize reductions in a size, a weight and a cost by driving a pump for heating and a bath by utilizing fluid energy. CONSTITUTION:The hot water supplying heater comprises a heating primary side circuit 18 connected to a heat source side heating medium circuit 4, a heating heat exchanger 34 for heat exchanging with a heating secondary side circuit 23, and a bath heat exchanger 26 with bath temperature keeping function. The heater also comprises a fluid driving impeller A30 provided at the circuit 18, a heating pump 35 so coupled to the impeller A31 provided at the circuit 23 as to be transmitted, a driving circuit 47 provided in parallel with the circuit 18, and a bath pump 44 for so coupling a fluid drive impeller B38 provided at the drive circuit to a driven impeller B40 provided at a bath circuit 46 with bath temperature keeping function as to be transmitted. |
