1, central heating, refers to a form of centralized group heating. Generally, it is charged per square meter (construction area) in a heating season. For the northern region, the weather is cold and it takes a long time to heat, so central heating should be used to save money.

2. In terms of energy utilization, central heating is a one-off operation with high operating cost. Whether it is necessary or not, heating is always provided all day, and the temperature is uneven because of different floors. If the heating is too hot, residents have to open the windows to cool down, which wastes valuable energy.

3. Central heating There is a power pump in the system heating, that is, a small heating system has an axial pump to provide power for circulating water. In the family's' floor heating', it is generally circulated by gravity. The inlet of radiator is higher than the outlet of heating furnace. When the heated hot water becomes lighter, it will "rise" into the radiator. After heat exchange, the circulating water in the radiator becomes colder and heavier and flows back to the heating furnace.