What are the preparatory steps for retrofitting heating?
Winter is the peak season for heating consumption. Each HVAC shopping mall has begun to provide replacement heating services. The best time to change the heating is before the heating season (that is, before the test of water). It is better not to change the water after the test, otherwise it is easy to cause running water phenomenon. For consumers who want to replace the heating in their old houses, they must be clear about what type of heating they have before the replacement. In particular, to understand the water quality of the district heating, the preparatory work must be done well.
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When choosing a suitable material for heating, it is suitable for the environment of your own community. Do not buy heating in the community when you buy heating, try not to buy a small brand of heating, try to buy a guaranteed product to the store.
Under normal circumstances, heating can be replaced, but the type of heating can not be replaced at will, according to the specific circumstances to choose. Dr. Guo Zenggen, General Manager of Senden (China) HVAC Equipment Co., Ltd., told reporters that there are currently two main types of residential heating systems—a central heating system and a separate heating system. Central heating is a heat source that concentrates and transmits heat to the user through a pipe. Household heating includes wall-hung boiler heating and electric heating. The centralized heating in the Beijing market is mainly residential boilers and urban heating network heating. The former refers to the construction of boiler houses in the community and the transfer of heat through boilers; the latter refers to the transfer of steam or hot water from the heating company to the community, and after heat treatment in the community, it is then supplied to all houses.
Old district preferred special anti-corrosion products
According to an interview with reporters, there are four main types of heating on the market. One is steel heating, which is not easily deformed due to its high strength, and it has a beautiful appearance. The second is a copper-aluminum composite heating system that is resistant to corrosion but not easily deformed. Pure aluminum heating, cheap but not resistant to corrosion; the fourth type of cast iron heating is mainly used for engineering construction.
Regarding how to choose the normal product type, Guo Zenggen suggested that in communities with an age of more than 15 years, whether it is a boiler or a heating system in a city heating network, the pipelines will generally have leakage, which will lead to increased energy consumption, and the oxygen content of the added water will be higher. High, it is easy to corrode pipes and heating. Therefore, it is best to choose copper-aluminum composite type or special anti-corrosion treatment products. If it is a new community, design specifications and pipelines are smooth, it is recommended to choose steel heating, which has high strength and a variety of styles and beautiful appearance.
“At present, some residential communities, especially those in the second ring, are mostly heated by pressureless boilers. The boilers are not traditional closed but open, and the water surface is in contact with the air, and it is very easy to corrode the pipes. If the owners can accept the traditional cast iron pipe , It is best not to replace, because the cast iron pipe is more resistant to corrosion. If you want to replace, it is best to use copper-aluminum composite heating or heating of the anti-corrosion treatment." Guo Zhangen said.
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