The QuietCool brand of whole house fans has taken America by storm. The QC CL-1500 advanced whole house fan is a new take on the idea of whole house ventilation. Whole house ventilation allows you to bring the cooler outdoor air through your windows， home and attic space to thoroughly cool and ventilate both the home and attic. QuietCool uses a unique， patented design that uses an acoustical duct attached to an R5 damper box. The result is almost zero noise vibration and whisper quiet operation. With the QuietCool QC CL-1500 installed in your bedroom， gone are the days of tossing and turning all night long due to the heat. Simply open a window， flip on the QuietCool and enjoy a peaceful and cool night of sleep.
QuietCool advanced whole house fans use and improve upon the principle of ventilation cooling with savings of up to 50% - 90% off traditional cooling methods such as A/C
1.97 sq. ft. of net free attic venting required for proper ventilation
Cools and ventilates rooms up to 736 sq. ft. for optimum performance
Fan motor head hangs from the rafters in the attic with a small ceiling cut-out for the air intake grille (14 in. x 14 in. ceiling cut-out)
Moves air at a rate of 1472 CFM
117-Watt PSC motor ensures efficient operation and airflow
QuietCool 8-hour countdown timer sold separately
R5 damper box at the ceiling level helps avoid heat loss in the winter
HVI-916 airflow rate for California: 1100 CFM
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