That is my Savings Time agenda twice a year.
http://www.ehow.com/facts_6308574_ceiling-direction-winter-vs_-summer.html
Ceiling Fans can help increase energy savings in your home when operated in a manner that optimizes their efficiency. Changing the fan direction for summer and winter months improves air circulation and temperature. To optimize these energy savings, however, it is important to take the appropriate steps to weatherize your home.
Fan Direction for Winter Months
1. To optimize air flow during the winter months, the fan direction needs to be set to the reverse setting. This will cause the hot air to rise and circulate, so that the air feels warmer.
Reverse Setting Adjustment
2. The reverse setting for ceiling fans can be oriented differently for each manufacturer. The best way to check is to stand directly under the fan while it is operating to see if the right setting has been selected. If you cannot feel any downward air flow, the setting is correct. Typically this setting causes the fan to rotate in the clockwise direction.
Fan Direction for Summer Months
3. To optimize air flow during the summer months, the fan direction needs to be set to the forward setting. This will cause the air to flow downward, causing a chilling effect by allowing moisture to be evaporated from the skin. With this effect, the thermostat can be set at a higher setting, which saves energy.
Forward Setting Adjustment
4. To check the forward setting, stand directly under the fan while it is operating. If you feel downward air flow, the setting is correct. Typically this setting causes the fan to rotate in the counterclockwise direction.
Additional Energy Saving Tips
5. To optimize energy savings from a ceiling fan, additional steps must be taken to weatherize the home. These steps include weather stripping/caulking windows and doors, changing air filters every two to three months, properly insulating exterior walls and attic spaces, and adjusting the thermostat at least 5 degrees lower in the winter time when you're sleeping or away from home. Each degree the thermostat is lowered, for example, during winter, can realize a reduction in heating costs from 3 percent to 5 percent.
http://www.askmehelpdesk.com/heating-air-conditioning/ceiling-fan-direction-winter-vs-summer-407288.htmlClockwise or counterclockwise?
Ceiling fans should be used in downdraft mode in the summer (CCW). In the winter you can use either updraft or downdraft mode (CW or CCW) depending on your preferences, it REALLY doesnt make much of a difference unless you feel a draft. I keep my fans running CCW in the winter and just set them to low.
The reason your question cannot be answered is the fact of blade angle. It is not the rotation you are looking for but the direction of air flow. Usually you draw air UP for heat. This will allow the fan to raise the cool air to the ceiling then mix with the hot air at ceiling then the blend of air will come down the walls back into the space. If you blow air down in the heat mode you will create a draft where you are sitting and be uncomfortable.
Whichever rotation you need to use to be comfortable is your decision.
My vents are in the ceiling and this is what I use. Now when you really get down to it the difference is not that substantial anyway. All you are doing is moving air to blend. Now if you have 30 foot ceilings to worry about that could be a different subject but the average home there is not much difference except as already mentioned for comfort. I suggest a variable speed control since running the fan at slower speeds usually work well.
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