Do you need to pay the second network fee for heating in old residential areas? How come?

Yes, in the property office. Most of the pipe networks in old residential areas were built by heating companies. Housing heating in old residential areas needs to pay the secondary pipe network fee, which should be borne by residents and paid in the property. The secondary pipe network fee refers to the pipeline construction fee from the heat exchange station of the heating company to the residential road, and the specific property right belongs to the user. The secondary pipe network fee is included in the composition of heating fee, including labor cost, management fee, equipment maintenance fee, fuel fee, fixed assets and equipment depreciation fee.