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QuietCool QC-6400
QuietCool QC CL-6400 The QC-6400 is the ideal fan to use in a central location like a hallway or in a large room. Covers up to 3,000 SQ FT

Don't forget to add an electronic wall timer, remote system or switch.

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QuietCool qc cl-6400
QuietCool QC CL-6400
MSRP: $1,660.00 SALE PRICE: $1,499.00
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The QuietCool QC CL-6400 uses 2, 2 Speed Capable Motors For 4 Speed Operation! The QuietCool, QC-6400 is the largest dual motor, single grille fan on the market today. Yet despite the massive airflow generated by this fan, it quietly operates with both motors running at a comfortable sound level of 50 db.

The QuietCool QC CL-6400 draws 6,020 CFM (Cubic Feet per Minute) and is the perfect fan for homes with common areas up to Covers up to 3,000 SQ feet.

What's In The Box? When you purchase your QC CL-6400 fan from us, you get a complete system, which includes the dual motor fan, ducting, damper and grille. All that it needed for installation is your choice of controls. The only thing else you will need is to decide on a wall switch and timer or a remote setup. The IT-30020 and IT-30070 are recommended. A winter cover kit can also be purchased to add additional insulation in winter months.


qc-6400 install
Image Of QC CL-6400 Installed In Attic

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Download The Classic Line Installation Guide(.pdf)
Download QuietCool Product Information Sheet (.pdf)
specification sheet QC CL-6400

QuietCool QC CL-6400 Specifications:

MSRP: $1,660.00
Motor Voltage 120 VAC, 60 Hz
Energy Use Hi: 623 Watts / Low: 287 Watts
Air Flow Hi: 6,020 CFM / Low: 3,226 CFM
Square Foot Coverage @ 2 CFM per SQ FT Covers up to 3,000 SQ FT
# of Speeds 2
Duct Diameter 16"
Duct Length 6 feet
Motor Head Diameter 16 1/2"
Motor Head Length 13 1/2"
Sound Level in Room (measured 1m from grille) Hi: 50 dB
Low: 44 dB
Dampers Barometric Pressurized R5 Dampers
Controls (not included) 8 Hour Timer and Double Stack Switch or Wi-Fi Smart Control (not included)
Warranty 10 Years
Framing None required
Joist Cutting None required; fits 16” or 24” on center
Minimum Suggested Attic Venting 8.0 SQ FT net free area
Ceiling Rough Opening 14 1/4" X 36 1/4"
Removable Grille Outside Dimension 16" x 38"
Shipping Weight 87 lbs.
Box Dimensions 42" x 20" x 38"
In the Box - QC CL-6400 Motorheads - Damper - Ceiling Grille - 6 foot duct (2) - Cut-out template - Accessory bag (2) - Window locks