The top floor of Tianjin will not stop heating below 0 degrees. According to relevant data, when the building is not heated, the coldest indoor temperature is about 3 degrees, so it will not be lower than 0 degrees. Tianjin is usually around 0-3 degrees in winter, because it is located in the north temperate zone, on the east coast of Eurasia at mid-latitude, and it is mainly dominated by monsoon circulation, so it will not be too cold.