Ms. Zhang, who lives in Luoyang Group’s family’s home, had just replaced the radiator this summer. Heating has started for 4 days. Her family is not warm at all. After inspection, the original metal heating strength of the radiator (refers to the intensity of the radiator can withstand when heating) does not meet the national standards, resulting in poor heat transfer of the radiator, affecting the heating effect of the room.
Mr. Li, who lives on Qiyi Road, discovered that the neighbor’s home was warm and warm after heating. However, his home was leaked due to radiator leaks and felt colder. The reason for the leakage was actually the corrosion of the newly installed radiator.
According to Dong Ming, a person in charge of a radiator manufacturer in the city, some of the salespersons of the radiator manufacturers referred to their products as “high in thermal strength†and “strong in corrosion resistance†and provided various certifications. Consumers are dazzled. However, in fact, many manufacturers have eliminated some of the processing steps of the inner coating in order to save costs, resulting in surface treatments that do not meet the requirements. Therefore, some of the radiators on the market that have been painted “inside†have been blistering on hot water for a few days, the coating peeled off, the base material of the radiator rusted, and the metal's thermal strength and corrosion resistance were Want to know.
Various radiators have their advantages and disadvantages
Recently, during an interview with the radiator market, the reporter found that the once popular cast iron radiators had gradually been replaced by new radiators. According to different materials, the new radiators mainly include steel radiators, aluminum radiators, and copper radiators.
Steel radiators have always occupied a large share in the market. At present, there are at least a dozen brands of steel radiators on the market. The shape and color of imported steel radiators are beautiful and the prices are relatively expensive; domestic and joint venture products are relatively cheaper. According to reports, although the new steel radiator uses a scientific anti-corrosion layer, magnesium rods are no longer needed, but there are certain requirements for the district heating system. According to a radiator manufacturer's sales staff, manufacturers have professionals to view the heating system, measure and estimate the amount of heat required, such as the heating system can not meet the requirements, it is not recommended to use such products.
Since aluminum is stronger than steel and iron, aluminum alloy radiators come in various shapes. Compared with cast iron radiators, aluminum alloy radiators have the advantages of rapid heat dissipation, high thermal efficiency, and relatively low energy consumption. The only drawback is that aluminum alloy radiators are prone to oxidative corrosion. When consumers choose, it depends on whether it is a professional anti-corrosion, but not on price alone. Too cheap radiators, the quality of the internal anti-corrosion layer is often unqualified; general anti-corrosion material of the regular brand radiator no dead ends, bubbles, and good corrosion resistance.
The copper radiator is a radiator made of copper as the heat pipe. The outside of the copper pipe is welded with multiple aluminum heat sinks, and a thin metal panel is added outside to coat various colors. Copper products have a fast heat-dissipation function, so copper radiators are small in size, and the smallest one is only 200 mm high, which is very space-saving. According to the sales staff, if the room is not sunny or there are elderly people and children in the family, it is necessary to increase the number of radiators as appropriate. This type of radiator cannot be separated. Therefore, consumers should choose different specifications according to the heating area and use.
Required radiator calculation method
The new radiators are sold at "sheet" or "group" prices, while also marking the amount of heat (W). Many consumers do not know exactly how many “pieces†or “groups†are needed for their own house, and how many “Wâ€s are needed to warm up.
Jiudu Road, a person in charge of the home building materials city, believes that to find out how much heat the house needs in order to be warm, first calculate the area of ​​the bedroom, living room, bathroom, etc. as the basic data for the calculation. Second, to calculate the wattage, the average family home can calculate the required heat per unit area from 45W to 70W per square meter. When purchasing a radiator, "the area of ​​the room x watts per square meter = the amount of heat needed for the room." It should be noted that when estimating, factors such as buildings or cottages, top or bottom floors, and wall insulation should be considered. After calculating the wattage, 10% to 20% of the wattage can be properly added to avoid insufficient heating. The last is to count the number of pieces. In fact, after the wattage is calculated, the number of heaters can be converted to calculate the number of groups. Some heating can not be split and combined, especially bathroom-type heating, consumers choose the appropriate size according to the area on it.
Choose the full range of products
In the face of various types of heating products on the market, many consumers find it difficult to choose. City Consumers Association recommends consumers to buy radiators, they should pay attention to choose large-scale, long operating hours, improve after-sales service providers.
City Consumers Association staff believe that choose a well-known brand radiator, the sign will be marked on the radiator unit weight, heat dissipation, pressure, heating area. Consumers can focus on how to check the quality of the radiator welding spot, touch the surface with the hand to determine whether it is smooth, or measure the weight of the radiator. This is the easiest way to judge whether the thickness of the radiator plate is up to the standard and whether the manufacturer cuts corners. There are many materials and styles of radiators, consumers should choose according to their actual situation. In addition, Consumers Association does not encourage consumers to install their own radiator, it is recommended that consumers are best to have a large store responsible for installation and after-sales service to buy, in order to ensure safety.
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