QC STL PRO-3.3X
QuietCool Stealth Pro Line

QC STL PRO-3.3X Specifications

Motor Voltage 120 VAC, 60 Hz
Energy Use Hi: 264 Watts / Low: 74.6 Watts
Air Flow Hi: 3159 CFM / Low: 1980 CFM
HVI-916 Airflow (for CA Title 24 New Construction) 2350 CFM
dBA Hi: 47.4 / Low: 36.1
Recommended SQFT Coverage @ 2-3 CFM per SQFT Covers 1053 SQFT to 1580 SQFT
Minimum Attic Clearance 34”
# of Speeds 2
Duct Diameter 16”
Duct Length 6 feet
Motor Head Diameter 16 1/2”
Motor Head Length 13 1/2”
Dampers Barometric Pressurized R5 Dampers
Controls Included: 8 Hr Electronic Timer & HI-LOW-OFF switch
Optional: IT-36002 QuietCool RF Wireless Control Kit
Warranty 15 Years
Framing None Required
Joist Cutting None Required; fits 16” or 24” on center
Minimum Suggested Attic Venting 4.22 SQ FT net free area
Ceiling Rough Opening 14 1/4” x 22 1/4”
Removable Grille Outside Dimension 16” x 24”
Shipping Weight 55 lbs.
Box Dimensions 27” x 20” x 38”
In The Box -QC STL PRO-3.3X Motorhead
-Removable Grille
-Cut-out Template
-Window Locks
-Damper Box
-6 Foot Duct
-Accessory Bag
-Controls

Electronically Commutated AC/DC Brushless Motor

All QuietCool Stealth Pro Line fans include our ultra-high efficiency electronically commutated AC/DC brushless motors. Known as “ECM” motors, these motors offer ultra-high efficiency with very high CFM/Watt ratios. All Stealth Pro fans operate on low wattage and low amperage. These motors are so efficient that they can help homeowners slash their A/C related electricity costs by up to 50-90%.