I finally decided to have a whole house fan installed. I contacted several installers for estimates and decided on Bay Area WHF because of their reasonable cost and professional estimate review. The recommendation was for the the 3 speed Quiet Cool Stealth Pro 4.8X. I got other estimates which were higher ($) and included the lesser model 2 speed Quiet Cool Pro Trident model unit.
The technicians were very efficient and aware of my concerns. However, the technicians were not too well versed in setting up the WiFi hub controller for including multiple devices. After the technicians departed, I contacted Quiet Cool customer service, *******340. Customer service was very efficient and patiently walked me through the steps in setting up my multiple device WiFi wireless control.
Now I am looking forward to a hot day to enjoy the benefits of my new ventilation system.
I highly recommend Bay Area WHF.