| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat source machine that can reduce energy loss in a case where heat exchange is performed between a heat medium circulating in a heating circulation circuit and a hot water circulating in a reheating circulation circuit and then reheating operation is performed.SOLUTION: In a case where reheating operation is performed, when a temperature on a hot water return side of a bathtub 12 becomes a stop temperature lower than a set bath temperature by a predetermined correction temperature, in a state where a heat medium circulation pump 92 and a hot water circulation pump 131 are driven, heating at a heating unit 2-2 is stopped, and hot water is heated up to the bath temperature by utilizing heat quantity of a heat medium circulating in a heating circulation circuit 9. |
