When does heating start in the north?

Generally, the heating time in the north begins at 165438+ 10/5 every year and ends at 15 in March of the following year, which is ***4 months. ?

However, each region will adjust according to its own situation. For example, the heating time in Harbin is 65438+1from October 20th to 4 yuan 20th the following year; Xinjiang is from June 10 to April 15, ***6 months every year.

Heating area division:

According to the national standard "Code for Thermal Design of Civil Buildings" (GB50 176-20 16), with the average temperature and the hottest monthly average temperature in Leng Yue as the main indicators, and the number of days with daily average temperature ≤5℃ and ≥25℃ as the auxiliary indicators, the whole country is divided into five categories: severe cold, cold in summer, cold in winter, hot in summer and warm in winter.

For example, in 20 12, "central heating is needed in southern areas", which has attracted much media attention, mainly refers to areas with hot summer and cold winter. The number of days when the annual average temperature is lower than or equal to 5℃ is 60 to 89 days, and the number of days when the annual average temperature is lower than or equal to 5℃ is less than 60 days, but the number of days when the annual average temperature is lower than or equal to 8℃ is greater than or equal to 75 days.

Its climate is characterized by hot summer, wet and cold winter and high air humidity. When the outdoor temperature is lower than 5℃, if there is no heating facility, the indoor temperature is low and the comfort is poor. With the development of China's economy and society and the improvement of people's living standards, buildings in these areas are gradually equipped with heating facilities, and the heating mode is mainly distributed heating.