Let me put my two sense in. There is a difference between a attic fan and a
whole house fan. The whole house fan is usually installed in the ceiling to
draw air from within the quarters of the house, and the attic fan is mounted
up to one of the attic vents in the attic. The attic fan sucks in air from
the opposite side of the attic where usually there is another air vent.
When set up properly, you have a thermostat between the fan and where ever
you tap into the electric wiring in the attic. Personally, I have my
thermostat set around 105 or 110 degrees, I forgotten since it's been about
9 years since I installed it. Anyway this fan will kick on once the attic
temperature reaches that thermostat setting and will stay on all day until
once again it reaches that thermostat setting and falls below the setting it
will shut off. \Believe me, What difference an attic fan makes in the hot
summer months. I live in a two story house, and when I'd go to bed at night
before installing the attic fan, you could feel the heat radiating off the
ceiling. That's my two sense.
