Using this air conditioner with a fan makes it cooler and saves electricity.
Combining air conditioning with tower fans correctly not only helps cool a room faster but also significantly reduces your monthly electricity bill.
Báo Khoa học và Đời sống•25/04/2026
Many people mistakenly believe that lowering the air conditioner temperature will cool the room faster, but in reality, this only causes the device to run continuously and consume more electricity. The core problem lies in the uneven distribution of heat within the room, with some areas being very cold while others remain hot, forcing users to lower the temperature beyond what is necessary.
A more effective solution is to combine air conditioning with tower fans to optimize airflow, helping the cool air spread evenly throughout the space instead of concentrating in one spot.
Unlike traditional fans with blades, tower fans create a vertical airflow, and their rotating mechanism helps maintain stable convection in the room.
As a result, the cold air from the air conditioner is drawn down and distributed evenly, reducing heat stratification and providing a more comfortable cooling sensation. Some models, such as the Xiaomi Smart Tower Fan 2 EU or the Fujihome SmartWind TF-21HL-DC, operate quietly and produce a gentle breeze, making them suitable for use at night. When the room temperature is well-balanced, users can increase the air conditioner temperature by about 1-2°C while still maintaining a cool temperature, thereby significantly reducing electricity consumption.
The commonly recommended setting is to keep the air conditioner at 26-28°C, combined with a tower fan at medium speed and oscillating mode, which is both energy-efficient and ensures comfort over a long period.
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