Compare: 49" to 60" ceiling fans have airflow efficiencies ranging from approx. 51-176 CFM/watt at high speed. Money Saving Tip: Turn off fan when leaving room.
The use of indoor ceiling fans can reduce prices on your energy costs up to 40% in the summer and 10% in the winter, using only as much as energy as a 100 watt light bulb. During the summer ceiling fans create a "cooling effect" lowering temperatures as much as 7 degrees and recirculating the heat in the winter to the living area.