NEW!! LARGE WHOLE HOUSE FANS

INVISCO OFFERS YOU HIGHER AIR FLOW IN AN ATTIC MOUNTED WHOLE HOUSE FAN THAN ANY OTHER SOURCE !

Invisco is the first source to take those huge noisy ceiling fans out of hall ceilings and put them in the attic where they cannot be seen and are barely heard. This offers you THREE excellent advantages

  1. You don’t need to open bedroom doors to get the air changed.
  2. You get to choose what rooms get more air flow.
  3. You get proven and tested designs – each one shown below is in a home.
  1. Fans that are larger than any others (24 inches and up ) These are patent pending and have no competition. Pricing for these unique inventions is based on comparable prices for QuietCool fans. As an example, the QC – ES 7000 is advertised by QC to pull 6,878 CFM. But that is a false claim. The real CFM is based on the HVI-916 test required by the California Department of Energy and is really 5170 CFM. The price they want is $1,569.00 – based on that the calculated cost per CFM is 30 cents so when that cost is applied to these larger fans then these larger fans should be priced this way –

5600 CFM AT 30 CENTS = $1,680.00…………………………………………………………………………. 7700 = $2,280.00………………………………………………………………………… 9700 = $2,910.00………………………………………………………………………… 12,600 = $3,780.00

HERE IS HOW TO DETERMINE THE CFM YOU NEED

How much air flow should you get?

Here is an example – a 4000 square foot home with 8 foot ceilings has 32,000 cubic feet of air inside.

If you want to cool it as fast as possible then the 48 inch fan pulling 12,600 cubic feet per minute will replace 32,000 cubic feet of air in about 3 minutes. If you are not in a hurry then the 24 inch at 5600 CFM will replace all the air in about 5 minutes and cost less.