Circulating fans, including ceiling fans, window fans, table fans, floor fans, and fans mounted to poles or walls, create a wind chill effect that makes you feel more comfortable. They can be used alongside natural ventilation or air conditioning to enhance cooling.
Ceiling Fans
Ceiling fans are the most effective type of circulating fan. They help improve comfort year-round by effectively circulating air throughout a room.
- Summer Use: Run ceiling fans counterclockwise to create a cooling breeze.
- Winter Use: Reverse the direction to clockwise and set to low speed to circulate warm air from the ceiling down to living spaces.
- Energy Savings: Using a ceiling fan allows you to raise the thermostat setting by about 4°F without reducing comfort. In moderate climates, ceiling fans can sometimes replace air conditioning altogether.
Installation Tips
- Ensure ceilings are at least eight feet high.
- Follow manufacturer instructions for optimal placement and safety.
Size and Placement
- Room Size: Use a 36- or 44-inch diameter fan for rooms up to 225 square feet. For larger rooms, use fans 52 inches or more. In rooms longer than 18 feet, multiple fans work best.
- Blade Size: Larger blades move more air at lower velocities, which is helpful in areas where a strong breeze might disturb loose objects.
Additional Tips
- Check noise ratings and, if possible, test the fan before buying.
- Look for the ENERGY STAR® label to ensure efficiency. ENERGY STAR® certified ceiling fans are up to 60% more efficient than conventional models.
Window Fans
Window fans are energy-efficient and effective in many climates. They work best when placed in windows facing away from the prevailing wind, exhausting hot air from your home. For more information on cooling your home efficiently, check out our guide on Cooling with Whole House Fans.
Usage Tips:
- Close windows near the fan tightly and open windows in rooms far from the fan, preferably on the windward side of your home.
- Use windows near cooler, shaded outdoor areas for the best intake air.
- In multi-level homes, place the fan on the upper level and open windows on the lower level, if possible. If not, ventilate each level with separate fans.
Multiple Fans:
- Using several window fans together can improve cooling efficiency. For example, fans in multiple upstairs bedrooms can pull air through the entire home, ensuring each bedroom is cooled.
Take Action
Enhance your home’s cooling efficiency by utilizing ceiling and window fans. Consult a professional for installation if needed, and always follow manufacturer instructions for optimal performance and safety. For more information, explore our Building America Solution Center guide on Ceiling Fans.
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