For some reason, fan manufacturers have struggled for years trying to design a simple, yet strong and reliable ceiling mount whole house fan. From fancy, motorized damper fans that fail, to noisy attic fans of yesteryear, nobody could seem to get it consistently right. Until now.
The QC HV 1000 is a simple dual motor system that installs from below into a ceiling space between 16" on center joists. During operation, gravity damper doors open and when turned off, the damper doors simply close tight maintaining the R 6.8 insulation value; see, no more broken motorized dampers!
How about energy efficiency? In the true QuietCool tradition, the QC HV 1000 draws just 39 watts of power per motor while blowing 552 CFM per motor, or 1104 CFM total when both motors are in operation.
This whole house fan is perfect for homes with insufficient attic crawl space to accommodate a ducted fan, and in particular manufactured homes, offices with drop ceilings, computer rooms and home gyms, for example.