How to choose the number of air conditioners: hot topics and practical guides on the Internet
Recently, as the high temperature in summer continues, the purchase of air conditioners has become one of the hot topics on the Internet. One of the most common questions consumers encounter when purchasing air conditioners is "how to choose the appropriate number of units." The number of units of an air conditioner is directly related to the cooling/heating effect and energy consumption. Improper selection may lead to poor user experience or soaring electricity bills. This article will provide you with a structured purchasing guide based on hot discussion data in the past 10 days.
1. Basic concepts of air conditioner horsepower

The "number of horses" of an air conditioner refers to its cooling capacity. One horse is approximately equal to 2500W of cooling capacity. The larger the number of horses, the stronger the cooling capacity and is suitable for larger rooms. The following is a comparison table of common number of pieces and applicable area:
| Number of pieces | Refrigeration capacity (W) | Applicable area (㎡) |
|---|---|---|
| 1 horse | 2500 | 10-15 |
| 1.5 horses | 3500 | 15-25 |
| 2 horses | 5000 | 25-35 |
| 3 horses | 7200 | 35-50 |
2. Factors affecting the selection of match numbers
In addition to room size, the following factors will also affect the choice of number of tiles:
| factors | Impact statement |
|---|---|
| room orientation | Rooms exposed to the west or facing the sun need to add 0.5-1 horses |
| Floor height | If the floor height exceeds 3 meters, the number of tiles must be increased |
| Thermal insulation properties | Rooms with poor thermal insulation need to choose a larger number of units. |
| Number of personnel | It is recommended to add 0.1 horses for every additional person |
3. Answers to popular questions on the entire network
According to the search data of the past 10 days, the following are the three issues that consumers are most concerned about:
1. Is it more energy efficient to choose a larger number of units in a small room?
Error. Running the air conditioner at low frequency for a long time will consume more power. It is recommended to match it accurately according to the area.
2. Does the frequency conversion air conditioner need to adjust the number of units?
The inverter air conditioner can be appropriately reduced by 0.5 horsepower because it can automatically adjust the power.
3. How to choose the living room and bedroom respectively?
It is recommended to choose a 2-3 HP vertical air conditioner for the living room and a 1-1.5 HP hanging air conditioner for the bedroom.
4. Air conditioner purchasing trends in 2024
Combined with e-commerce platform data, the current popular air conditioner types and number of units are distributed as follows:
| Air conditioner type | Hot sales | Proportion |
|---|---|---|
| wall-mounted | 1.5 horses | 58% |
| Standing cabinet type | 3 horses | 32% |
| Central air conditioning | Customized by area | 10% |
5. Expert advice
1. When measuring the actual area of the room, the area occupied by the furniture needs to be deducted
2. For high-rise residential buildings, it is recommended to choose a model that is 10% larger than the standard number.
3. New first-level energy efficiency models can save 20%-30% on electricity bills
Through the above structured data and analysis, I believe you can choose the number of air conditioners more scientifically. If you need further help, you can refer to the matching calculator tools officially provided by major brands.
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