On hotter days, many people turn on the fan hoping to cool the house quickly, but this device is not designed to lower the temperature of a room. The fan only moves air and helps cool the body, but it can become more effective if used with a container of ice or cold water placed in front.
The explanation comes from Sam Morris, a researcher at Which, cited by the British portal, who points out that a fan does not work like an air conditioner. The device creates air circulation, moving hot air away from the skin and increasing the sensation of freshness, but does not in itself reduce the actual temperature of the room or living room.
Therefore, leaving the fan on in an empty room does not bring any practical benefit. The effect is felt mainly when there is someone in the space, as air movement helps the body lose heat more easily.
Ice helps cool the air
The trick is to place a shallow bowl, tray or bottle of frozen water in front of the fan, always keeping enough distance to prevent condensation or water from coming into contact with the appliance. When the air passes close to the ice, the thermal sensation becomes cooler.
Water and ice help this process because they absorb heat from the environment as they melt or evaporate. In practice, the fan starts to push slightly cooler air into the room, creating an effect similar, although much simpler and more limited, to that of an air conditioner.
To apply the method, simply fill a bowl with ice cubes, place it in front of the fan and turn on the device. Within a few minutes, the air current should seem cooler, especially in small or medium-sized rooms and when the house is already protected from direct sunlight.
Frozen bottles last longer
The effect of the ice cubes is temporary and may only last an hour or two, depending on the temperature in the room. When the ice melts, its ability to cool the air decreases and it will be necessary to replace the water or add ice again.
To prolong the result, a simple alternative is to freeze one or two large bottles of water and place them in front of the fan. Because the ice block is larger, it melts more slowly and can keep the air cool longer.
Still, it is important to ensure that the bottles are kept away from the motor and fan cables. Condensation water must be collected with a plate, tray or absorbent cloth, to avoid electrical risks and keep the space safe.
Windows also make a difference
Opening windows during hot weather can help when the outside air is cooler than the indoor air, for example, early in the morning or late in the day. However, in the hottest hours, this strategy can have the opposite effect and bring even more heat into the home.
During peak heat, the ideal is to reduce direct sunlight, lower blinds or close curtains in the most exposed rooms. The fan can then be used to improve air circulation and increase comfort, especially if it is placed in such a way as to direct the current towards the area where people are.
The ice trick does not replace an air conditioning system, but it can be a quick, cheap and easy solution to alleviate the heat at home. It works best when combined with shade, good ventilation at the right times, and attention to electrical safety.
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