Attic fan with no attic??

Question

Hi all,I've got a 2 story house.  I have no attic as I have only cathedralceilings.  I'd like to get a fan to exhaust all the hot air from the houseand pull in the cooler air through the windows (particularly when it'snight-time and cooler outside than in).  Since I've go not attic, I can'tinstall an attic fan;-)Any other alternatives?  I was thinking about something high on a wall,venting to the outside, or something in the ceiling/roof, but most of thewhole house fans are pretty noisy (not too much of a problem if they're inan attic), but this would have to go in a living space.  Right now we runour 80cfm bathroom fan, but my guess is that it does little in a 2000 sq'house.TIABart

Speedy Jim · Accepted Answer

Big fan in a window (dbl hung).  Made just for the purpose.Very effective.Jim

THEOLDONE · Answer

You might try what they do at factories...installl a "Spinner" Cap exhaustfan. when the wind blows the spinner portasion of the cap spins and drawsout the hot airJust another idea

George E. Cawthon · Answer

Good Greif! You don't need a fan, hot air rises. Put windows in the gables of your cathedral ceiling and open them at night. Cool air comes in the lower windows, hot air exits through the high windows. No noisy fans needed.

Tom Baker · Answer

A two story house might make good use of the chimney effect.This would require no energy.Fan or not, the path or paths of the air should be carefully planned.Tom Baker

wayne · Answer

Maybe you could use a roof mounted powered attic fan make a box and install the normal louvers for an attic fan?Hard to believe you don't have a hallway where you have some space?Waynenews:...

-------- · Answer

Build a frikkin attic on top of your roof, stupid !!!!God Damn there are a lot of morons on this newsgroup today !!!!

BRN · Answer

OP here. Actually that's a great idea! Unfortunately, it doesn't work sufficiently. We have 2 high-on-the-wall gable windows. Opened all night, downstairs windows open to pull cool air in. The top floor still ends up

10F warmer than the outside air in the morning. The ground floor is much closer to the ambient outside air temp.

That's why I'm investigating putting in a fan. I think to really cool off the top floor we need active, rather than passive air transfer.

Thanks for the suggestion, though:-)

Chet Hayes · Answer

With cathedral ceilings, one solution would be to use electicallyoperated sky lights, which will let the hot air out.

Attic fan with no attic??

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