Using the ES line of motors, the additional STL models provide maximum air flow coverage for all room and area configurations.

Using the ES line of motors, the additional STL models provide maximum air flow coverage for all room and area configurations.

The "workhorse" STL 3.3 compliments the Classic Line QC 3100 but at a puny 221 motor watts with a single motor.

In every configuration, dealers can mix and match our ES and STL motors for perfectly zoned coverage with the industry's most energy efficient fans, all of which sit atop the California Energy Commission "Appliance Efficiency Database" as the most energy efficient fans on the market.

As we like to say, if it doesn't say "QuietCool" on the motor, it's just another fan! But more ---- these say "Stealth," the best of the best offered by QuietCool.

Specifications

Motor Voltage 120 V. AC, 60 Hz

Energy Use 238 Watts

Air Flow 3310 CFM

CFM/Watt- Efficiency Rating 13.9

Square Foot Coverage @ 2 CFM per SQ FT Covers up to 1650 SQ FT

# of Speeds Single Speed

Duct Diameter 16"

Duct Length 6 feet

Motor Head Diameter 16 1/2"

Motor Head Length 19"

Sound Level in Room "Acoustical" 47 db

R Value at Closed Damper R 4.2

Dampers Air Tight Insulated Dampers

Controls Remote Control or Hard Wire Capabilties

Warranty 15 Years

Framing None Required

Fits between "16 or 24" on Center Joists No Joist Cutting Necessary

Minimum Suggested Attic Venting 4.4 SQ FT net free area

Ceiling Rough Opening 14 1/4" X 22 1/4"

Ceiling Grill Outside Dimension 16" x 24"

Ceiling Grill Color White- High Volume Air Flow

Shipping Weight25 Lbs. and 19 Lbs. (two boxes)

Ship Carton Dimensions 24" x 23" x 22" and 21" x 17" x 17" (two boxes)

Ship Carton Cube 7.0 and 3.5 (two boxes)

UL Component UL Listing Numbers

Motor E62815; E62788; E62862

Housing ETL 3171583

Power Cord ETL 3171583

Acoustic Duct MH11637