Here you will see two of the best whole house fans you can find. Why?
The Invisco Tornado is the first and only line of whole house fans with infinitely variable speeds. Infinitely variable speed control means you can run them all night for pennies.
The Invisco Tornado offers you higher air flow at lower power than any other whole house fan.
Invisco also offers an optional automatic window opener for security and remote control.
Until 2016 homeowners without attics could not install a whole house fan. Then I invented the first high flow rooftop mounted whole house fan. Below is a picture of the rooftop whole house fan – it has a 20 inch throat and pulls 8005 CFM at just 505 watts power.
Below is Gerard talking about how he likes the Tornado in his home.
GEARARD IN MURIETTA WITH A BREEZE ON A STILL DAY IN 2014
You might know that whole house fans have been around for 120 years. They were the only way to cool homes before Carrier invented air conditioning. For the first 100 years they were big propellers mounted behind shutters in the ceiling. Most of these were noisy but VERY effective at pulling air. The largest ones – 4 foot diameter blades – pull 14,500 cubic feet of air per minute (CFM).