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CentricAir 3.4 Energy Saving Whole House Fan 3242 CFM (HVI-916 Certified Airflow Rating)

whole house fan on damper box
The Centric Air fan mounted on its damper box More Photos
(5 customer reviews)

The CentricAir 3.4 whole house fan delivers a powerful 3242 CFM (HVI-916 certified airflow rating) and requires about 4.0 sqft of net free attic ventilation. It uses 382 WATTS of power and costs about $0.08 per hour to run. It’s designed for two story homes up to 3400 sqft and single story homes up to 2500 sqft.

It comes with an option of an On/Off remote control with timer or two-speed (Hi/Low) remote with timer & temp control or two speed HI/LOW wall switch and digital timer. Also available with select CentricAir products is our exclusive cold climate damper. (See Included & Upgrade Options Below)

IMPORTANT: All CFM ratings for CentricAir have been verified by an independent testing agency authorized by the State of California as meeting the strict (HVI-916) standard. When comparing CFM (airflow) ratings against similar style whole house fans, it is important to compare the HVI-916 CFM certified airflow rating. This is the true apple to apples comparison. The following link is to the CA.Gov website and allows you to search a company’s Brand to see their products HVI-916 CFM rating  CA.Gov 

Choose fan options to show pricing.

Choose a remote control or wall switch for your system.

From:$1499.00 $1399.00 Sale!

Need a professional to install your whole house fan?

Exceptional Power, Extremely Energy Efficient!

The CentricAir 3.4 is a high quality, very powerful and ultra quiet alternative cooling solution. It uses a German engineered industrial grade fan motor that can provide 30% more power while using 1/3 less energy as compared to other industry standard fans.

Extreme Engineering - Built To Last, Extremely Low Noise

These high-end industrial grade motors are built to last and are rated for approximately 40,000 hours of operation. The noise level is also really something to hear – or, actually not hear. At a very quiet 52 dBA on high, the 3.4 is whisper quiet. Every aspect of this system is built to a rigorous specification suitable to demanding industrial applications and is completely maintenance free.

Heavy-duty Maintenance Free Damper

A fundamental problem with traditional whole house fans was air leakage between the attic and living spaces. This could result in dirty attic air entering your home. The 3.4 takes care of this problem with an industrial-quality damper that is thermally insulated and maintenance free. Silicone seals are provided to ensure sealing longevity; they also provide phenomenal resistance to weathering and changes in temperature. Silicone seals have an approximate service life of 30 years and remain flexible down to -40 degrees F/C.

Low Profile - High Air Flow Register

The CentricAir 3.4 comes with a high air flow register that reduces air movement noise through the register. These high-performance grills look great too, so your system looks as inconspicuous as it sounds.

Maintenance-Free Operation

The German-engineered sealed motor and damper never requires lubrication or maintenance of any type.


3242 actual CFM (max); 1409 CFM low speed


Fits in between 16" on center joists


120 VAC, 60 Hz

Unit weight

52 lbs total

Damper box size

28" × 14" × 13.75" (L × W × H)

Grille size (outer)

16" x 30"

Required attic venting

4.0 sq. ft. net-free

Rough opening

14" × 26"


Low profile, hi-air flow, cube-core aluminum (white)


18-inch, industrial-grade motorized impeller


Remote control or wall switch


R-5 or R-10 (cold weather damper ) or R-50 (extreme cold weather damper)

Attic seal

Industrial-grade maintenance free damper


49 Decibels (dBA); 47 dBA low speed


8.49 CFM/Watt (max)

Energy use

382 Watts


15 year limited fan motor warranty. All other components and electrical parts are warranted for 1 year from date of purchase. Warranty excludes batteries.

Control Choice of:
  • Wired 1 Speed Wall Timer – Compatible with Back Draft Damper
  • Wired 2 Speed Wall Switch with Timer & Temperature – 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
Damper Choice of:
  • R5 Back Draft Damper
  • R10 Cold Weather Damper
  • R50 Extreme Cold Weather Damper
Adapter Choice of:
  • No Adapter
  • Vertical Wall Mount Adapter – Compatible with Back Draft Damper

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

5 reviews for CentricAir 3.4 Energy Saving Whole House Fan 3242 CFM (HVI-916 Certified Airflow Rating)

  1. Steve

    Just installed yesterday, and the install is fairly easy. The fan is super quiet and works amazing, The quality of the fan seems to be very good as well. Mike with Factory Fans Direct was very helpful and informative, and recieved with in two days. Also get the two speed remote, works great too. Thanks again Mike.

  2. Amelia K

    First of all, we love our whole house fan. It’s an amazing addition to our overall cooling system (we already have central air) but got this to air out the upstairs, stuffy bedrooms and save our poor a/c from being overworked. There are a couple options for purchasing and installing your house fan and my husband did a loooooot of research before making our final decision, and we are so glad we (he) chose a CentricAir.

  3. John Moore (verified owner)

    Just finished my first year with the 3.4. I used it heavily last summer. Then, it sat idle all winter and spring except that one day we accidentally burned salmon on the stove, it cleared the smell quickly. Hot weather is here now and we are using it again. It’s working fine. I installed it myself the day it arrived from centric air (I set up everything in my ceiling at a selected location the day I got the shipping notification). I have the wireless remote Velcroed to the wall next to the thermostat. I watch the outside temperature and as soon as I see it drop to my house temperature I turn off the ac, open the windows and turn on the fan. It’s great! My house used to cook all night, heat soaked from the days’heat and I would end up using the ac even though it was cool outside. Now the house is chilly in the morning with the windows open. Love it!

  4. Tim Jones

    I installed the 2.7 in our previous house and now ready for a 3.4 in our new larger house. The 2.7 was amazing and expect the same from the 3.4. The upgrade 2 speed remote is a no brainer….plug and play.

  5. Samuel Hauge

    I just wanted to say, I’m quite pleased with the fan, and I’m glad I didn’t buy the smaller capacity unit. It takes my house from uncomfortably warm to as cool as I need in an hour’s time and has so far completely eliminated the need to run the portable a/c unit. It’s also as quiet as I could’ve hoped for – the sound isn’t a factor at all (I have to be standing directly underneath the grille to even know it’s opened or closed). We haven’t yet encountered the warmest days which come in late AUG & SEP, but I’m confident that running the fan late in the day after the sun is almost down will have the house cooled off in short order. I would buy it again and only wish I’d put it in years ago. If the state wants to cut everyone’s energy use, they should be subsidizing these things! (I just have to say, after explaining where the air is coming from and going to repeatedly to my wife, I suspect many people somehow simply don’t understand how these fans accomplish their cooling…)

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Money Back Guarantee 15 Year Limited Warranty Assembled in the USA Caution: Make sure the fan you buy correctly states its airflow rating.
Included (Control & Damper)
Insulated R5 Gravity Backdraft Damper
Backdraft 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) allows you to operate the fan up to 100 feet away. Make yoursystem more convenient to use and eliminate the need to cut holes and run wires down the…


Single Speed Wall Timer
Single Speed Wall Timer
The single speed wall timer allows you to operate the fan on high speed. Countdown digitial wall timer. Fits in a single gang box.  
Upgrade Options
Two Speed Wireless Remote with Timer & Temperature Control
Two Speed Wireless Remote with Timer & Temperature Control
Wirelessly controls whole house fan using built-in timer or by temperature. Wireless remote sits on a bedroom table or used anywhere in the home. Improves Comfort and Energy Efficiency using Temperature Control. Never overcools the home and eliminates homeowner having to get up to adjust a timer. Never wastes energy because fan only runs when…
2-Speed Wall Switch. Temperature, Timer and Speed Control (Hi/Low)
2-Speed Wall Switch. Temperature, Timer and Speed Control (Hi/Low)
2-speed wall switch with 50' Cable Temperature, Timer and Speed Control (Hi/Low) Improves Comfort and Energy Efficiency Plug & Play Connection.  Eliminates Installing and Wiring Line Voltage Timer and Speed Switch
Cold Climate Damper (Ceiling or Wall Mount)
Cold Climate Damper
Designed for cold climates, the Cold Climate Damper (available with 2.7, 3.4, & 4.0 models only) is powered by a heavy-duty actuator that is tested to 60,000 cycles. The damper door is insulated to R-10, (upgradable to R-50), to help ensure an air tight seal whenever your whole house fan is not in use. The damper can be installed vertically or horizontally.
Vertical Wall Mount Adapter
Vertical Wall Mount Adapter
Compatible with our back draft damper, the Vertical Wall Mount Adapter lets you mount the gravity damper on a wall instead of the ceiling.
Optional Third Party Controls
WiFi Compatible
WiFi Compatible
CentricAir and QA-Deluxe products are compatible with a variety of smart home devices including Amazon Alexa, Echo, Google Home, and others. These third party controls and smart plugs are not sold by CentricAir. If interested in one of these WiFi controls we recommend purchasing our On/Off remote control with timer. This option is available for…