| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a water heater supplying hot water to a bathtub in a short time. <P>SOLUTION: This water heater includes a refrigerant liquid storage tank 1, a general hot water supply circuit C1, a bathtub hot water supply circuit C2, a bathtub water circulating circuit C3, a heating circuit C4 for general hot water supply, a heating circuit C5 for the bathtub, a heat exchanger 2 for general hot water supply, exchanging heat between the water flowing in the general hot water supply circuit C1 and the refrigerant liquid flowing in the heating circuit C4 for general hot water supply, and a heat exchanger 3 for the bathtub, exchanging heat between the water supplied to the bathtub 65 and the refrigerant liquid flowing in the heating circuit C5 for the bathtub, the bathtub hot water supply circuit C2 is connected with a water source 70, and disposed to join with the bathtub water circulating circuit C3 at a former stage of the heat exchanger 3 for the bathtub, and the water used in the bathtub hot water supply is supplied from the water source 70, and heated by the heat exchanger 3 for the bathtub. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
