Air energy water heaters have become a new type of water heater products that are popular among consumers because of their advantages such as energy saving, environmental protection, safety and comfort. Due to the short time to enter the market, the average consumer does not have enough knowledge of it, so it seems to be somewhat at a loss when purchasing. Here are some questions to be aware of when purchasing.
What types of air energy water heaters are available? At present, household air energy water heaters are mainly divided into two types: coil direct heating type and casing circulation type according to different heat production methods or heat exchange methods. The coil direct heat type, that is, the heat energy is transferred to the refrigerant, and then transferred to the water through a disc-shaped heat exchanger built in the water tank, which is also called a fluorine circulating air energy water heater; and the casing circulation type is usually a casing type The heat exchanger, after transferring heat from the refrigerant to the water, is heated by the water pump, usually called a water circulating air energy water heater.
The difference between these two types of products is that the fluorine cycle has the highest heating efficiency, and almost 100% of the heat extracted from the air participates in heat exchange; while the water circulating air can be circulated by the pump to exchange heat, and 5-8% of the heat is dissipated. With 8-10% additional power, the heating efficiency is lower than that of the fluorine circulating air. And the water circulation air can be complicated due to the work process, the product structure is also more complicated, and the reliability is not as good as the fluorine cycle product. However, it should be noted that the fluorine circulating air can be installed with high difficulty and high technical requirements, especially for split products. Therefore, it is recommended to purchase an integrated product, which is not only easy to install, but also has daily maintenance and system stability.
After determining the type of product to be purchased, there are also many details to be aware of during the purchase process. For air-energy water heaters, compressors, coil materials, tank liners, etc. are key factors in product quality. The compressor brand is better known as an internationally renowned manufacturer, and it is best to use a special heat pump compressor; the coil material is preferably a high-purity copper tube, which can effectively ensure the thermal conductivity and service life of the pipeline; The special steel inner liner is the best, the leakage prevention layer is separated from the pressure bearing layer, and the special synthetic polymer material sprayed on the inner wall is subjected to high temperature treatment and steel crystal integration process, so that the entire inner surface of the inner liner is seamless without any weld seam and effectively prevented. Fouling, performance in corrosion resistance and high pressure resistance are far stronger than ordinary stainless steel liners.
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