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Chiller, freezer, refrigeration equipment, Shanghai Shangyu Refrigeration Equipment Co., Ltd
[Is it good to have an air conditioner with electricity and auxiliary heating?]
Release date:[2022/12/30] Is reading[176]次

What are the advantages and disadvantages of electric auxiliary heating?


For merchants, the cost of adding ceramic heating elements is not high, and there is almost no technical content. Therefore, air conditioners with electric auxiliary heating functions can effectively save the manufacturing cost of commercial air conditioners.


Moreover, in cold weather, the heating capacity of the air conditioner will decrease. Because in winter, the temperature difference between indoor and outdoor is large, and the outdoor temperature even reaches below 0 °C, the air conditioner should absorb heat to the outside, and then heat dissipate heat indoors, the process will be very slow; Another reason is that when the air conditioner is heating, there will be a defrosting process, the defrosting process occurs on the outdoor unit heat exchanger, without defrosting, the external unit can not continue to absorb heat, and the defrosting speed will also be reduced by the efficiency due to the outdoor temperature is too low.


Therefore, air conditioners with electric auxiliary heating function will heat up faster when heating, and even in winter, they can have good heating efficiency, which is also the biggest advantage of air conditioners with electric auxiliary heating.


However, from the disadvantages, under the electric auxiliary heating function, the heating method of the air conditioner is very rough, simply increase the temperature of the air, will not increase the humidity, which also leads to the indoor air will become very dry, giving us a feeling of comfort is not high.


Moreover, this ceramic heating element is not high in the conversion efficiency of heat energy, the heating ratio is very poor, and the PTC heating energy efficiency is very poor compared to air conditioning heating, and only 1/3 to 1/4 of the thermal efficiency of air conditioning heating. Therefore, PTC electric auxiliary heating is not necessary from the perspective of energy efficiency.


Is it good to have an air conditioner with electricity and auxiliary heating?


Some people say that air conditioners with "electric auxiliary heat" are not good, is it true? In fact, there is also some truth in this sentence. Air conditioning and cooling is the duty, but heating is the skill. The reason why the air conditioner has "electric auxiliary heat" is to make up for the lack of heating capacity of the air conditioner, a good air conditioner, excellent heating capacity, do not need to rely on this function to make up.


If the compressor manufacturing technology is excellent, even in a low temperature environment, it can rely on the superior performance of the compressor to achieve heating; Air conditioners with electric auxiliary heating functions are often used to compress costs and cover up the shortcomings of their own compressor technology.


Therefore, the cold and warm air conditioner with the "electric auxiliary heating" function is certainly not comparable to the cold and warm air conditioner without the "electric auxiliary heating" function, at least indicating that there is a certain gap in manufacturing cost and technology between the two. Because of this, the price of cold and warm air conditioners without the "electric auxiliary heating" function is more expensive.


Do you want to buy electric auxiliary heat when buying an air conditioner?


As mentioned above, air conditioners without "electric auxiliary heating" function are more expensive, if we need to use air conditioners for heating for a long time, and the economic budget is sufficient, and the pursuit of life is relatively high, priority is given to air conditioners without "electric auxiliary heating" functions, which are more comfortable and more energy-saving.


If you pursue cost-effectiveness and do not need to use air conditioners for heating for a long time, it is enough to choose an air conditioner with the function of "electric auxiliary heating", anyway, the heating demand for air conditioners is less, the heating function is not commonly used, and the electricity bill will not cost much.


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