I've got a 2 story house. I have no attic as I have only cathedral
ceilings. I'd like to get a fan to exhaust all the hot air from the house
and pull in the cooler air through the windows (particularly when it's
night-time and cooler outside than in). Since I've go not attic, I can't
install 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 the
whole house fans are pretty noisy (not too much of a problem if they're in
an attic), but this would have to go in a living space. Right now we run
our 80cfm bathroom fan, but my guess is that it does little in a 2000 sq'
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.
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:-)
Maybe you could use a roof mounted powered attic fan
and 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?
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