In the residential area under construction, the developer shall pay the public maintenance fund to the competent construction department. If the public infrastructure of residential quarters needs maintenance, the owners' committee must write a report and apply for maintenance fees from the public maintenance fund. Because the district involves the renovation and maintenance of heating pipes, it belongs to the maintenance of public infrastructure. If the developer of the district does not pay the public maintenance fund, according to the Property Law, whoever owns the heating equipment should bear the maintenance cost, saying that the maintenance cost of heating renovation of the district should not be borne by the owner, but by the developer or heating company.