When does air conditioning consume a lot of electricity? Cooling or heating?
On the Internet, I saw many netizens arguing about which household air conditioners consume more power, refrigeration or heating. This seems to be nothing controversial. We can be sure that “heating” consumes more power than cooling. Here is an analysis for everyone from three aspects!
1. What is a heating and cooling air conditioner? An air conditioner has the functions of both cooling and heating is called a “heating and cooling air conditioner”. The heating and cooling air conditioner consists of two parts: an indoor unit and an outdoor unit. There is also a type of heating and cooling air conditioner called an auxiliary heating type. When the compressor has the same working hours, the power consumption for cooling and heating is close to that.
2. The large temperature difference leads to an increase in working hours. In fact, in actual use, the working hours of air conditioners for cooling and heating are very different. For example, on hot days, cooling drops from 35 ° C to 25 ° C, and it seems that there is only a temperature difference of 10 ° C. However, the air conditioner needs to work for about 1 hour, while in winter, there is a 25-degree difference between heating from 0 ° C to 25 ° C. The air conditioner needs to work for about 2 hours, so in winter, the working time when the air conditioner is in the heating state is longer than the cooling time. Therefore, heating power consumption increased.
3. The large temperature difference leads to auxiliary heating work. Due to the low temperature in many places, such as in Northeast China, relatively cold areas, and even above minus 20 to 30 degrees, the air conditioner still cannot reach the set temperature while heating. At this time, it is necessary to use heating and cooling air conditioners with auxiliary heating to work. Simply put, an electric heating pipe element of about 1000W to 2000W is added to the indoor unit to increase the heat. In this way, the power consumption of air conditioners with auxiliary heating type has increased again during heating.
Therefore, for general wall-mounted air conditioners, in the cooling mode, the cold air sinks and the human body feels extremely comfortable; in the heating mode, the hot air after coming out of the air outlet collects more above the room, so we often feel It seems “not hot enough”, so we need to adjust the temperature higher, the temperature will be higher, and the power will be more consumed.