| 摘要 |
A refrigerant heating device for use in a space heating circuit comprises a heat exchanger (35) which is provided with a refrigerant pipe (27), a heat absorbing body (36) which surrounds the refrigerant pipe and whose inner peripheral wall is spaced from the outer peripheral wall of the refrigerant pipe at a prescribed distance thereby to provide an annular space, and a solid heat-conductive member (38) e.g. made of an alloy which is filled in the annular space and melts at a lower temperature than the withstand temperature of the refrigerant. A heating source heats the heat-absorbing body thereby to heat a refrigerant flowing through the refrigerant pipe by the solid heat-conductive member and the refrigerant pipe. <IMAGE> |
