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QA-3300 Whole House Fan 2425 (HVI-916)

A photo of a fully-assembled QA-3300 whole house fan.
QA-3300 Whole House Fan More Photos

QA-3300 Is For 2-Story Homes up to 1550 sq ft & Single Story Homes up to 950 sq ft. It Delivers A Powerful 2425 CFM (HVI-916) Certified Rating. It comes with an option of On/Off Remote Control with Timer, Two-Speed Remote with Timer & Temp Control, or Two Speed HI/LOW Wall Switch with 4-Function Digital Timer.

Also Included Is Our Acoustical Ducting for Quieter Operation. R-5 Insulated Gravity Damper That’s Designed to Keep Air From Entering The Home When System Is Not In Use. Support Brackets That Keep The Damper Off Drywall. Heavy Duty State of The Art Spun Aluminum Fan Housing Will Not Weaken Over Time. Heavy Duty Fan Motor Brackets With Rubber Bushings Prevents Motor From Shifting And Reduces Vibration Noise.

Easy Installation. No Framing Required. Fits between 16″ & 24″ On-Center Joists.

Choose fan options to show pricing.

Choose a remote control or wall switch for your system.


Need a professional to install your whole house fan?



Motor Voltage

120 VAC, 60 Hz

Energy Use

417 Watts Hi / 380 Watts Low


5.82 Air Flow Efficiciency (CFM/Watts) Hi Speed

Air Flow

2425 CFM (HVI-916)

Square Foot Coverage

2-Story Homes up to 1450 sq ft & Single Story Homes up to 900 sq ft

# of Speeds


Duct Diameter


Duct Length

7 feet

Motor Head Diameter


Motor Head Length

12 1/2"

Sound Level in Room

Hi 51 dB Low: 48 dB

Control Choice of:
  • Wired 1 Speed Wall Timer – Compatible with Back Draft Damper
  • Wired 2 Speed Wall Switch & Timer – Compatible with All Dampers
  • Wireless 1 Speed Remote Control with Timer – Compatible with Back Draft Damper
  • Wireless 2 Speed Remote Control with Timer & Temperature – Compatible with All Dampers

R5 Back Draft Damper


10 years


None required

Joist Cutting

None required: fits 16” or 24” on center

Minimum Suggested Attic Venting

2.5 SQ FT net free attic ventilation

Ceiling Rough Opening

14” x 22”

Box Dimensions

20”x20”x28” and 20”x20”x20”

In the Boxes

– QA 3.4 Motorhead
– Damper Box – Ceiling Grille – 7’ acoustical duct
– Accessory bag

Due to product improvements and equipment upgrades, performance ratings and specifications are subject to change without notice.


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Money Back Guarantee10 Year Limited Warranty

Assembled in the USACaution: Make sure the fan you buy correctly states its airflow rating.

Included (Control & Damper)
Insulated R5 Gravity Backdraft Damper
Back Draft Damper
Industrial grade gravity fed back draft damper requires no power and is standard with all CentricAir whole house fans. The R5 insulated gravity damper is designed keep attic air from entering the living space when the whole house fan is not in use.
Wireless Single Speed Remote Control & Timer
Single Speed Remote Control
Plug & Play. No Wires To Run. Just plug into an outlet. Our Wireless Single speed remote control with timer (1, 2, 4, 8 hours or ON) is available for FREE with all CentricAir whole house fans that use the back draft damper. It allows you to operate the fan up to 100 feet away. Make…


Single Speed Wall Timer
Single Speed Wall Timer
The Single Speed Timer allows you to operate the fan on high speed and also choose how long to run your fan (1, 2, 4, 8 hours or HOLD).
Upgrade Options
Two-Speed Wall Switch & Timer
Two Speed Wall Switch with Timer
Our wall mounted two speed switch & timer lets you set the speed of your fan and choose when it will shut off.
SKU: QA-3300 Deluxe Categories: ,