| 摘要 |
PROBLEM TO BE SOLVED: To provide a sewage-utilizing heat source facility having the excellent stability of heat supply to the heat demand side. SOLUTION: An anti-sewage heat exchanger 1 heat-exchanging a heating medium L1 with sewage W in a swage conduit WF, an output heat exchanger 6a extracting the potential heat of the heating medium L1 and an underground heat exchanger 2 under an underground buried state anti-ground heat exchanging the heating medium 11 are interposed in series with a heating-medium circulating path 7. |
