集中供暖，一般都是按一个采暖季每平方（建筑面积）
Central heating is generally based on one heating season per square meter (building area)
来收费的，对北方地区来说，天气比较冷，需要供暖时间长，应该集中供暖省钱。指集中集团式供暖的一种形式。在系统供热里，都是有动力泵的，就是一个很小的供热系统都是有轴流泵的给循环水以动力。
For northern regions, the weather is relatively cold and requires a long heating time, so centralized heating should be used to save money. A form of centralized group heating. In the heating system, there is a power pump, which means that even a small heating system has an axial flow pump to power the circulating water.
在家庭的‘土暖气’里，一般是靠自流循环的。暖气片的入口高于加热炉的出水口，加热的热水比较轻就‘升’到暖气片里，暖气片里经过热交换后循环水变凉，变的比较重，流回加热炉。正值交房装修的高峰，如将集中供暖或分户式供暖改成地板采暖，不仅舒适美观还让装修更便利。但专家表示，集中供暖和地暖系统各有优劣，如果已采用集中供暖系统，最好不要轻易变动采暖方式。
In the "soil heating" of a home, it is generally circulated by natural flow. The inlet of the radiator is higher than the outlet of the heating furnace, and the heated hot water rises into the radiator when it is relatively light. After heat exchange, the circulating water in the radiator cools down and becomes heavier, flowing back into the heating furnace. At the peak of the handover and renovation period, if central heating or household heating is changed to floor heating, it not only provides comfort and aesthetics but also makes the decoration more convenient. But experts say that central heating and underfloor heating systems have their own advantages and disadvantages. If a central heating system has already been adopted, it is best not to easily change the heating method.