Will a window fan cool a room?

Will a window fan cool a room

Cooling rooms in the summer can be troublesome at times because it often requires a lot of money to operate air conditioning units. Sometimes, air conditioning units can be very expensive to replace and as such, it is crucial that a backup plan is in place to ensure your home won’t get too hot.

One of the most effective alternatives in cooling homes are window fans. Similar to how a traditional electrical fans work, window fans can help cool homes, offices and other infrastructure faster by blowing air inside the building and can also exhaust the warmer air out.

Despite the fact they are just fans, they are capable of reducing indoor temperatures in a similar way to how air conditioning units do and can help save a lot of money on electric bills.

How exactly can it cool a room?

Like other fans available in the market today, window fans can help cool rooms in three ways:

  • When it is turned on, the window fan can bring in cooler air from outside and push it inside the house. Meanwhile, the fan’s motors then suck in the warmer air and remove it from the house.
  • When the window fan sucks in the warmer air, it removes the humid air and changes it to cooler air.
  • Evaporative cooling is another way a window fan can cool a room. In this scenario, the fan triggers an increased rate of moisture evaporation, which assists in cooling.

Window fans can also cool a room faster when the following steps are followed:

  • If you have a large home or a home with a lot of rooms, it’s a good idea to have two types of window fans to circulate cool air around the house: fans blowing inward and those blowing outward. These fans must be equal in number, especially if you want to ensure that the air circulates around the house. However, if you cannot have an equal number of inward and outward fans, the extra fan should be used to bring in more air. This setup can prevent insects from entering your home.
  • If you have a part of your home which is close to a shaded or a cool spot, placing an inward fan will help bring in that cool air to these parts to the home. In order to ensure that the warmer air is removed from the house, putting an outward fan on the sunny side of the house can help ease the heat inside the house.

However, if your home has a lot of floors, installing inward fans on the ground floor is ideal.

  • Window fans produce cooler results if they are the largest fans available that fit your windows. Once installed, all the gaps must be blocked to ensure that the colder air doesn’t slip out of the house.
  • Opening window fans after sunset will produce a quick result because the fans, especially those installed at the ground floor, can bring in cooler night air while the ones installed at higher levels remove the warm air from the house. Once the rooms are cool enough, removing the fans and shutting the windows down can help retain the cool air for a few hours. Once the sun sets again, you can reinstall the fans again to help cool your home further.

Unfortunately, there are certain scenarios which can prevent a window fan from cooling a room:

  • If the window you are planning to install your window fan is under the sun’s rays, it can cause the fan to produce warmer air.
  • If you live a location that is always very hot, window fans cannot help cool down the house well.
  • Window fans must be installed in areas which have a large space to ensure that the air can circulate properly around the house.
  • If the window you are planning to install the window fan in is close to a refrigerator or freezer, the window fan may end up blowing the cooler air out faster than usual and, as a result, overpower the window fan’s motors.
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