The best use of a whole house fan is to turn off the central air
conditioner in the late afternoon or evening when the outside air
temperature is below 85 degrees and at the same time turn on the
whole house fan. The whole house fan then does the job of cooling
your house much better and faster than an air conditioner at a
huge savings in your electric bill.
How much does it cost you to run your
air conditioning?
Last year a typical 15 year old 5 ton air conditioning system cost
about $3.17 per hour to operate in many areas of California. This
year it will cost about $5.44 per hour due to huge increases in
utility rates in the upper tier levels.
The
QuietCool
System can save you 50% to 90% of your air conditioning usage.
The QuietCool whole house cooling and ventilating system can help
you significantly reduce your need for traditional air
conditioning. The result is lower electric bills! The following
chart is an example of potential savings when you reduce you’re
A/C usage and use QuietCool instead.

(CLICK TO ENLARGE)
The above chart illustrates how, if you only cut your air
conditioning usage in half by using the QuietCool System, the
savings should easily pay for a QuietCool System in ½ to 2
years. After that, you will save huge amounts each year.