How to choose the floor heating pipe? How long is each floor heating pipe? Let's talk about the selection of floor heating pipes. Now there are two main options, one is PERT, which is called heat-resistant polyethylene, and the other is PEXB. There are certain differences between the two kinds of pipes. The advantage of PEXB pipes is that they are heat-resistant and high-temperature resistant. They will not melt under high temperature, become transparent, and then maintain the original pipe shape, so they are often used in high-temperature floor heating systems. When the working temperature of PERT exceeds a certain temperature, the service life will be greatly reduced. In addition, PEXB is also resistant to low temperature and will not freeze and crack in extreme weather. Let's talk about the length of the floor heating pipe. According to the national regulations, each road of the floor heating pipe shall not exceed 120 meters. This length is specified according to the water temperature of the boiler, but the water temperature of the boiler is very high, which can reach 90 ℃ or even higher. The maximum outlet water temperature of the source heat pump is about 60°C. Therefore, the length of each road should not be too long. According to the practical experience of many dealers, it is recommended that the length of each road should not exceed 60 meters.
