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lark@adore.lightlink.com (Lacustral) writes:
> I would like to use an exhaust fan (fan from a ceiling grille to outside) to
> run overnight in the summer, with the windows open, so that my house is cool
> in the morning. I am not sure how much CFM is needed. I do not want a big
> powerful whole house fan because I would like it to be quiet. Just a small
> fan that keeps running overnight.
I had a wholehousefan growing up. It was large, but it wasn't that
loud.
The thing to know about fans is that you can have a large one with a
relatively low rpm, with a solid well constructed motor that moves the
same volume of air as a smaller one wizzing at deafing volume and rpm
with a cheaper motor.
My gut--without researching anything for you--is that a variable speed
whole house fan is probably what you actually want.
Best Regards,
--
Todd H.
http://www.toddh.net/
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Re: fanpower needed to cool house overnight
