The heating system is calculated based on the maximum heat load required at the statistical minimum outdoor temperature. However, this design temperature of the thermostatic valve occurs only for a few days in the severe cold season, which means that the heating system is only at full capacity for a few days during the entire heating season. Generally speaking, the heat load required to maintain the room temperature is much smaller than the design value, and the heat load is constantly changing. The heat load varies from day to day throughout the heating season. The thermostatic valve can automatically maintain an accurate room temperature according to predetermined requirements, regardless of climatic conditions. A thermostatic valve is installed in each room to ensure that the "free" heat energy emitted by sunlight, lighting facilities, machinery and the human body can be fully utilized to save energy.
