This is not a fan, its an air evacuation kit,,,,its way better than a fan,,,,way better,,,
Our insurance paid for this new unit,,,they moved too slow, and we now
Have this one for sale,,,,,,this new motor is over 300.00, the fancy vent is also 100.00 new,
Vents only Open when fan is on and closes when its off,,,have a heating ac guy install it
On any big place, there is no comparison to this except a bigger one, and the will do
3-4000-feet. Plz leave a message when you can come for this stuff in you response,
Happy hunting