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re: ceiling fan/clockwise or counter-clockwise?
26 oct 1997
mari wrote:
>on 25 oct 1997 00:07:53 gmt, "_" wrote:
>>i know that your fan should go one way in warm weather and another in cold
>>weather. does anyone know which is which?
didn't we answer this last year?
>turn it on and figure out how the air moves. it should push down from
>the ceiling in cold weather (to push the heated air down into the
>living zone) and pull up to the ceiling in warm weather (helping hot
>air to rise up out of the living zone)...
would this fan be fighting nature?
i wonder if air inside a house would naturally cool and fall down along
the cool exterior walls in cold weather, then rise up in the center of
a room, since it has to have somewhere to go to complete the convection
loop. a heat source in the middle of the floor would help the air rise.
in a house with perfectly insulated walls, the warm air might just stay
up around the ceiling. air in a house that is cooler than the outdoors
in warm weather might flow in the other direction, up the warmer walls
and down in the center of the room. a large ice cube in the middle of
the ceiling would help the air fall.
perhaps the direction doesn't matter much, since a fan can easily
overpower natural convection, and either way, it stirs up the air in
a room to keep it all close to the same temperature. moving air keeps
people cooler in summer, and in winter...
nick
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