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Smart ceiling fans can automatically turn on and off at predetermined temperatures or when a space is unoccupied. They can also adjust their speed in response to temperature changes. The National Renewable Energy Laboratory used computer models to determine the energy-saving potential of ceiling fans, and found that raising the cooling setpoint by 4°F could reduce building energy costs by as much as 11%. View full-size infographic. [PDF - 290 KB]
Reference above to any specific commercial product, process or service does not constitute or imply its endorsement, recommendation or favoring by the United States Government or any agency thereof.