1, all the expenses of the "central heating" project shall be borne by the residents themselves, including installation fees and use fees.

2. In principle, the whole building is used as a unit for construction, and individual households can also apply for installation, subject to the final site design and reconnaissance.

3. The installation fee of the initial project is charged by households, the standard is 230 yuan /m2, and the use fee is 10 yuan /m2_ month (nearly 30% cheaper than the independent installation of natural gas heating in the market), which can guarantee 24-hour room temperature 18 degrees Celsius.