fans vs a/c, and diminishing returns?
at my last house i got into the habit of sticking a fan in front of the back door and letting cool air from the shady backyard in in the morning. once the a/c kicked on i just shut the door and let the a/c work. it kept the air off a little longer in the mornings.
now in my new home i do the same with one fan in a kitchen window. here though, i have two bed rooms that have a jack and jill halfbath bettween them, and if i keep all the doors open i can kind of get a circular draft going. i can barely tell, but if i burn an incence stick the smoke moves very slowly following the path. there's also a ceiling fan on pretty much all the time, a/c or fan, in the den (part of the circle), and i'm planning on adding one in each of two bed rooms (one is in this circle)
the question is, i could get this to work better with more fans along the pathway of this circle, but at what point am i losing the benifit of keeping the a/c off?
i mean, i know the a/c pulls more wattage than a fan, but i'm sure if i have a bunch of fans going it will add up to the same or more wattage (not to mention the noise of a bunch of fans running).
partially, i just like playing with a breeze in my house, but not if it actually costs me more than just running the a/c. thanks for any help.
should have added it's central air. i don't know what size it is but it's cooling a smallish 3br one level ranch style house so i guess it's not real big.
Last edited by Philphine; 06-17-2008 at 08:33 PM.