Ceiling paddle fans are an effective way to reduce your summer cooling costs, if used properly. In warm months, paddle fans should circulate the air downward. (Different manufacturers have fans rotate clockwise or counterclockwise to circulate air downward). Paddle fans work by cooling you from the breeze they create. They do not change the actual air temperature. Therefore, ceiling fans should be turned off if no one is in the room to feel the effects. For maximum energy savings, raise the thermostat a few degrees when using your fan.