18 degree insufficient heating compensation.

Insufficient heating can be refunded according to the actual number of days that are not up to standard. The compensation standard for heating below 18 degrees Celsius is that the minimum heating temperature is 18 degrees Celsius, and the deviation of plus or minus 2 degrees Celsius is normal. If the temperature can't reach, you can ask a professional testing institution to test. If it does not meet the standard, you can ask for a refund according to the actual number of days that do not meet the standard. If the heating unit has any objection to the substandard situation, the user may complain to the heating administrative department.

People's Republic of China (PRC) Civil Code

Article 2 15

A contract concluded between the parties on the establishment, alteration, transfer and elimination of the real right of immovable property shall come into effect upon the establishment of the contract, unless otherwise provided by law or agreed by the parties; Failure to register the real right shall not affect the validity of the contract. Article 285

Entrusted by the owners, the realty service enterprise or other managers shall, in accordance with the provisions of the realty service contract in Part III of this Law, manage the buildings and their ancillary facilities within the building division, accept the supervision of the owners, and promptly answer the owners' inquiries about realty service.