Excuse me, the distance between the radiator inlet and outlet.

Pro: Natural circulation installation method is a common installation method. It should be noted that one of the installation methods is that the pipeline cannot be horizontal and must have a certain slope, especially the height difference between the radiator and the boiler, and the distance is required to be more than 0.5 meters. There are also requirements for the diameter and length of heating pipes. It is through the natural circulation process of hot water to achieve the effect of warming the room. But it also has its shortcomings, such as large temperature difference, no decorative effect, and easy to affect the beauty of the room.