How many years is Yisheng heating warranty?

Who will repair the heating facilities during the warranty period? Ms. Wu Yun, a resident of Xinhui Qian Community, Dongshan Street, Shengli Road, tiedong district

● Let me ask you something: According to Article 40 of the State Council No.279 "Regulations on Quality Management of Construction Projects", the warranty period of heating system is 2 heating periods; Article 41 stipulates that if a construction project has quality problems within the warranty scope and warranty period, the construction unit shall perform the warranty obligations and be responsible for the losses caused.