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Automatic Whole House Fan?

 
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I’m planning on installing a whole house fan…they are awesome. My problem is that in the hottest part of summer, outside temperatures may not fall into the cool range until 2-3am. I really don’t want to have to get up in the middle of the night to turn it on and then wander through the house to open a bunch of windows.

I’m sure it’s possible to have a temperature controlled switch to automatically turn the fan on at a certain temperature. But what about windows? I’m imagining having a louver panel that I can put in windows during the summer. When the fan turns on, the negative house pressure would crack open the louvers. But when the AC runs, I think that creates a positive house pressure that would keep them closed.

Am I on the right path? What are the problems that might come up?  I appeal to the wisdom of the members here. . Thanks!!
 
pioneer
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I have a whole house fan in my home.  I hate it.  It is obnoxiously noisy.  It even sucks the scent of woodsmoke and creosote down my chimney and into the living space.  

Now, I can see your attraction to the idea of an automated system that will purge your house every so often.  My fan has louvers as part of its housing.  They open up as soon as I turn the fan on as they are right next to the pressure differential created by the spinning blades.  I have my doubts as to how that would work if you relocated the louvers to a more remote position.  Louvers that were specially created to be finely balanced would probably work.  The use of a temperature controller and a contactor or relay is pretty straight forward business.  

Good luck on your project!
 
pollinator
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Location: Bendigo , Australia
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Instead of suckong air from your house, can you blow outside cooler in into your house.
Its similar but different.
It can be temperature controlled and I am sure some sort of exit route with a swing gate can be sorted out.
 
master gardener
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Location: southern Illinois, USA
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The fan can be controlled by thermostat or timer.
 
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