HVAC class, starting today! Whether the new heating enters the home, nowadays has become an important symbol of the grade of home improvement and quality of life, especially for the southwestern city of Chengdu, which has no heating habits, the heating installed in the winter is fashionable and fashionable. Fresh, but due to the different central heating from the north, the southern installation of heating is usually installed by the owner, and the cost is also large.
HVAC is generally divided into natural gas and electric energy. In winter, it is not a purchase fee, and the consumption is huge. Therefore, the safety and energy-saving of HVAC naturally became the most concerned issue in the hearts of the people. In this issue, Huaxi "HVAC Class" was officially opened to teach you the basic knowledge to be purchased and installed.
Floor heating VS radiator, which is more cost-effective? Generally speaking, heating has several forms such as floor heating, radiator and electric heating. The floor heating is the radiator on the whole ground, and the whole ground is evenly heated through the heat medium in the radiation layer of the floor. The radiator is heated by a wall-hung boiler or boiler, and then linked to the radiator through the pipe, and finally the temperature is output through the radiator.
At present, the popular one in Chengdu is warm floor heating. Because the floor heating is suitable for the fitness theory of Chinese medicine, “warm and coolâ€, it is a comfortable heating method. However, the floor heating installation paves the pipes for the area required for heating, and the cost is also relatively high. Usually 80-100 square meters of houses, the full set of equipment down to 20,000-30,000. Moreover, the paving of the pipeline will increase the ground height by 7-9 cm, and it is not suitable to use solid wood flooring and other materials, and the material requirements of the floor are very high.
The radiator is a traditional HVAC device. A radiator is installed on the wall of the house. The hot water is directly delivered by the pipe to reach the temperature output, and the method of opening and closing can be carried out. But the aesthetics are poor, and it is not as concealed as the warmth.
When purchasing plastic pipes, beware of heat will deteriorate and install HVAC. In addition to boilers, another important part is plastic pipes. Currently popular in the market are PE-Xa, PE-Xb, PE-Xc, PE-RT, and a few use PPR and PB pipes, the performance of various pipes has certain differences.
According to reports, when using the same polyethylene as the base material, PEXb has higher heat resistance, creep resistance and stress crack resistance than PE-Xa when the degree of crosslinking is the same. The PE-Xa tube is easily deteriorated by heat, while the PE-Xb tube is easily deteriorated by moisture. PE-Xa has advanced production technology, high degree of automation, high qualification rate and high yield; PE-Xb has strong dependence on human factors and high rejection rate. Due to the complicated production process and high investment cost, PEXc pipe is currently one of the few in the world, but its international market share is as high as 80%. At present, PE-RT pipe has good quality stability and impact resistance on the basis of satisfying temperature resistance and bending property, and its convenient connection method also reduces the maintenance cost in the future. It is undoubtedly a risk in the floor heating pipe. The lowest choice has become a new star in the floor heating pipe.
When purchasing the pipe, consumers should pay attention to the fact that the surface of the pipe should be printed with a mark that is not easy to be erased. If there is no printed mark or the printed mark is easily wiped off by hand, this is not an authentic product.
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