| 摘要 |
PROBLEM TO BE SOLVED: To ensure reheating of a bath with the aid of recovered heat without additionally providing a heat exchanger. SOLUTION: Heating water is circulated through a connection section 5d, a three-way valve 17, a bypass passage 16, and an exhaust heat heating heat exchanger 3 from a heating pump 9, whereby waste heat from a gas engine 1 is recovered, while heating water is circulated through a heating heat exchanger 8, a solenoid valve 13, and a bath heat exchanger 10 from the heating pump 9, whereby water in a bathtub is indirectly heated to reheat the bath. |
