Rongcheng Changqing Heating Company is a heating company located in the solid waste industrial park, No.268 Pinghai West Road, Rongcheng City, Shandong Province, which is responsible for central heating in Rongcheng Development Zone. The company was completed and put into operation on 20 14, providing external heating. It is the only project in China that uses low-temperature circulating water generated by domestic garbage incineration to provide heat.