Filed under: Bedrooms , Small Spaces , Essential Skills , Know-How , Living Spaces Window fans are a natural on hot summer nights. Photo: Joe Provey, Home & Garden Editorial Services Everyone knows that putting a box-style window fan in the window will make a hot room feel a bit cooler. But not many people know that putting two fans in a room is immeasurably better! The trick is to have one fan blowing in at one window and the other blowing out at another window. A single fan isn’t strong enough to move the huge mass of air in most rooms very quickly. Consequently, it can’t overcome the heat build-up inside. This approach works on the same principle as a hot air heating system. One duct supplies warm air while the return duct removes cooled air from the room. Without a return, your heating system’s performance will suffer. This two-fan trick even works in hard-to-cool rooms on a third floor or in a hot, stuffy attic. If your windows won’t accommodate a box fan, an oscillating stand fan will work. Buy models that allow you to lock the position and place one in front of each window. In addition to cooler inside temperatures, the two-fans approach saves money. Two box-style window fans are less expensive ($5 to $35 each) to purchase than an air conditioner ($110 for a small one), less expensive to operate, and usually longer lasting, too. Home Improvement | DIY | Linking Blogs | Comments
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The Two-Fan Technique: Save Energy, Stay Cool