2006-07-03 11:02:58 · 39 answers · asked by ann n 3 in Science & Mathematics ➔ Mathematics
I have tested this. I prefer downwards all the time for a fast fan. For a slow fan I agree with the upwards summer downwards winter that seems to be the common answer.
With a fast fan blowing down in the summer, you can get actual turbulent flow on your skin (you can feel the air rushing by) and that provides improved cooling (if you are hot).
For simply equalizing the temperature over the room then any stirring will help but in my tests summer-up winter-down was slightly quicker.
2006-07-03 11:08:00 · answer #1 · answered by enginerd 6 · 0⤊ 0⤋
If trying to draw warm air from the ceiling and distribute it to the lower elevations of the room (when you have a cold room) then the fan needs to be blowing DOWN. Remember, hot air rises, and therefore will collect near the ceiling, where the fan will conveniently push it downwards. If trying to cool a warm room, the fan needs to be blowing UP, drawing the warm air upwards, towards the ceiling. Remember that cool air is more dense, therefore it migrates towards the floor.
2006-07-03 11:08:38 · answer #2 · answered by cake_eatingraccoon 1 · 0⤊ 0⤋
Heat rises. So in the summer i would have the air blowing upwards and in winter the hotter air blowing downwards
2006-07-03 11:06:50 · answer #3 · answered by brian h 3 · 0⤊ 0⤋
Since warm air rises, in the cold months of the year you can help circulate the warm air by having the fan switched to where it pushes the air down. You would want to switch it back during the hot months in order to help cool.
2006-07-03 11:13:25 · answer #4 · answered by mightymom5757 1 · 0⤊ 0⤋
In the summer you want to run the fan counterclockwise to push air down and create a cooling effect.
In the winter you should run the fan clockwise to help redistribute the warm air.
2006-07-03 11:11:29 · answer #5 · answered by Dodie 1 · 0⤊ 0⤋
in the summer, you want the air pulling up and in the winter the air pushing down. This is the idea that hot air rises and cold air sinks. In the summer, you want to pull the cold air upward and in the winter, you want to blow the hot air down.
2006-07-03 11:07:00 · answer #6 · answered by Anonymous · 0⤊ 0⤋
actually think about it people...you are sucking up the cooler air fromthe ground but where is the hot air up there going... down! so the best it not hav a ceiling fan at all but a high level extractor this will remove the warm air from the top of the room causing the cool air to replace it...
2006-07-03 18:57:45 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Hot air rises. Do in the winter you want it to push the air down and in the summer you want to push the air up. Make sense?
2006-07-03 11:05:45 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Cold air pushed down and hot air upwards.
2006-07-09 19:02:27 · answer #9 · answered by nikhil pleasant 1 · 0⤊ 0⤋
During the summer, you want to pull air up and mix the cooler air with the warm air that has risen in the room. In winter, you want to push the warmer air down. Or vice versa. I can never remember!
2006-07-03 11:05:45 · answer #10 · answered by JuJu 2 · 0⤊ 0⤋