We had a house down on the Gulf of Mexico with a loud fan like that. The fan was powerful enough that it didn't just produce a constant breeze through the open

We had a house down on the Gulf of Mexico with a loud fan like that. The fan was powerful enough that it didn't just produce a constant breeze through the open windows, it produced quite a volume of wind. The thing you have to remember was that when whole house fans were popular, the alternative wasn't to install an air conditioner, the alternative was to build a house with a screened sleeping porch so you could sleep somewhere that cooled off as quickly as the outside air did once the sun set. https://en.wikipedia.org/wiki/Sleeping_porch https://en.wikipedia.org/wiki/Sleeping_porch In the deep south, you can still use a whole house fan reduce the number of weeks you need to run the a/c at night to sleep comfortably. Fast moving, cool, humid air blasting across your bed from an open window will have you burrowing into your blankets more quickly than you would expect.