CENTRIC AIR 4.0 Whole House Fan (Cools Home up to 4400 Sq. Ft.) 3921 CFM (HVI-916) | ENERGY SAVER 623 WATTS HIGHLY RATED GERMAN FAN MOTOR (Click to View Details) (Call for FREE Expert Advice & Additional Discounts) FREE SHIPPING

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  • Centric Air offers an advanced 2-Speed wireless controller using built-in timer or by temperature.  The wireless remote sits on a bedroom table or used anywhere in the home.  (Optional)
  • Wall Control. Temperature, Timer and Speed Control (Hi/Low)
Wall Control 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
  • Centric Air offers a Cold/Hot Weather R-50 & R-10 Power Damper. Can be used in either a ceiling or vertical wall.  (Optional) Call 888-849-1233 for details
  • Designer High-flow grille 16" X 30"  is designed to minimize noise from air movement (Included)
  • Single Speed Remote (Included)
  • 100% Money Back Guarantee
  • Assembled in the USA
  • 15 Year Limited Warranty
MSRP: $1,995.00
Now: $1,649.00
Was: $1,799.00
— You save $346.00


Centric Air 4.0 Whole House Fan 3921 CFM (HVI-916) to 4400 Sq. Ft.

The Highest Quality & Quietest Whole House Fan on Market with 15 Year Warranty | 5-Blade Computed Balanced German Motor | Comes with New R-5 Energy Star 1" Poly Foam Damper (Optional 2-Speed Remote with Timer or Wall Switch | R-10 or R-50 Cold Weather Power Damper for Ceiling or Wall Mount) Call for FREE Expert Advice & Additional Discounts | FREE SHIPPING

CentricAir 4.0 whole house fan delivers a powerful 3921 CFM (HVI-916). It requires about 5.0 sq. ft. of net free attic ventilation and costs about $0.10 per hour to operate. It uses 623 WATTS of power and is designed to cool 2-story homes up to 4400 sq. ft. and 1-story homes up to 3000 sq. ft.

CentricAir whole house fans consist of a German engineered fan motor which is 30% more powerful and uses 1/3 less electricity than other whole house fan motors. These high efficient motors come with a 15-year guarantee and are rated for 40,000 hours of operation.

Included with the system is a R-5 Energy Star 1" Poly Foam industrial grade back-draft damper, sound absorbing acoustical duct-work, custom high airflow grill, on/off remote control or wall switch/timer and all necessary hardware. Also available with select CentricAir products are our exclusive two-speed remote control with timer and cold climate damper. (See included & upgrade options below)

Centric Air German Engineered Whole House Fan Motor



Included (Control & Damper)
Industrial grade gravity fed back draft damper requires no power and now comes with all CentricAir whole house fans. The gravity damper is designed keep attic air from entering the living space when the whole house fan is not in use.
Single Speed Remote Control
Our Wireless Single speed remote control is available for FREE with all CentricAir whole house fans. It allows you to operate the fan up to 100 feet away. Make your whole house fan more convenient to use and eliminate the need to cut holes and run wires down the wall with a wireless remote control.


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 Option



Two Speed Wireless Remote with Timer & Temperature Control  |  Smart Wireless Controller Instruction Manual 

Centric Air offers advanced 2-Speed wireless controls for it's 1.5, 2.0, 2.7, 3.4, & 4.0 whole house fans using built-in timer or by temperature.  The wireless remote sits on a bedroom table or used anywhere in the home. Improves Comfort and Energy Efficiency using Temperature Control. Never over cools the home and eliminates homeowner having to get up to adjust a timer. Never wastes energy because fan only runs when needed. Simple and Fast Installation – Eliminates wiring and installing a timer and speed control switch. Features plug and play connection. Fan plugs into side of controller box and controller box plugs into outlet in attic. Easy install. 
This remote will Operate:  "Fan alone" or "Fan & R-10 or R-50 Power Damper". 
Two-Speed Wall Switch & Timer
2-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.
Cold Climate Damper (Ceiling or Wall Mount)
Cold Weather Damper R-10 & R-50
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. 
Acoustical: 54 Decibals (dBA)
Airflow: 3921 REAL CFM (max), low speed adjustable 3184 REAL CFM low speed
Attic Seal: Industrial-grade maintenance free actuated damper
Control: Two Speed, 5 timer function, wireless remote or Dual SPST Décor wall switch
Damper Box Size: 28" × 14" × 13.75" (L × W × H)
Efficiency: 6.29CFM/Watt (max)
Electrical: 120 VAC, 60 Hz Energy use:623W (max)
Fan: 20-inch, industrial-grade motorized impeller
Grille: Low profile, hi-air flow, cube-core aluminum (white)
Grille Size (outer): 16" x 30"
Installation: Fits in between 16" on center joists
Insulation: R-10 Required attic venting: 8 sq. ft. net-free
Rough Opening: 14" × 28"
Unit Weight: 64 lbs total
Warranty: 15 year limited fan motor warranty. All other components and electrical parts are warranted for 1 year from date of purchase. Warranty excludes batteries. 
Features  & Benefits
Exceptional Power, Extremely Energy Efficient!

The Centric Air 4.0 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 54 dBA on high, the 4.0 is very quiet. Every aspect of this system is built to a rigorous specification suitable to demanding industrial applications and is completely maintenance free.

Two Speed Wireless Remote Control with Timer

The optional two speed remote control with timer is our most versatile control which features an LED display and 5 Timer Functions 1, 2, 4, 8 hours or ON. On high speed the system operates at a powerful 3860 CFM. Set to low speed the system provides a comfortable flow of air while maintaining a whisper quiet noise level.

Heavy-duty R-5 Energy Star 1" Poly Foam 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 4.0 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 Centric Air 4.0 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.

FREE SHIPPING | Call 888-849-1233 for FREE Expert Advice & Discounts

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23 Reviews

  • 5
    The Best Whole House Fan | Whole different level

    Posted by Steve Z on 30th May 2021

    We had other whole house fans in our past homes and were not satisfied with them. Centric Air is at a whole different level of whole house fans, with a German motor and being whisper quiet and energy efficient. 5 Stars

  • 5
    Buy a Fan | Tell Friends | Receive $50 Checks

    Posted by Linda P on 28th Jun 2020

    My husband and I are Real Estate brokers and wanted a quality whole house fan for our home and our rental properties. We talked with Mike at Factory Fans Direct and he gave us expert advice and a great deals on the Centric Air whole house fans. He had a list of qualify installers who did a wonderful job and we are very happen with our choice. Mike also told us that if we liked our fan and we did to tell our friends, neighbors and clients. We did and referred many customers to Mike and get weekly $50 checks. Best fan | Tell Friends | Receive checks | Such a deal..

  • 5

    Posted by Dave L on 4th May 2020

    It sucks...the hot air out of the house!
    Wife and I have enjoyed the cool breeze and not running the A/C. It is really quiet.

  • 5
    Outstanding Whole House Fan

    Posted by Tony L on 18th Jan 2020

    We installed the Centric Air 4.0 in our home last summer and what a relief. Hot air on second level was removed and quiet operation. Very well constructed.

  • 5
    Great Fan and Customer Service | $50 Referral Checks

    Posted by Doug G on 17th Aug 2019

    We recently had a Centric Air whole house fan installed and I should have done it years ago. I could instantly tell the difference it made in our home. Factory Fans Direct did an excellent job explaining the quality of the product and the installation was great. I would highly recommend this team! I referred a few friends and they bought the Centric Air fans also. They were also pleased and I received multiple $50 checks. Thanks Mike

  • 5
    Brought down Our Energy Usage

    Posted by Jerry C on 14th Aug 2019

    It is a no brainer. I recently moved and started checking my electricity usage. My A/C was using an insane amount of energy, driving up my bill so I started searching for alternatives to a new $20K HVAC upgrade. I was referred to Factory Fans Direct by a friend and got the 4.0. I purchased the same unit and What a difference! We have had it for two weeks and have not had to use the A/C once. My Electric usage dropped dramatically. This uses less than 1KWh where my AC uses greater than 12 KWh each hour.

    It is also great at night to have a cool breeze coming in with fresh air. It is like you are at the beach. Install was fast and was done in less than an hour.

  • 5
    Out with the old and in with the New!!!

    Posted by Jack N on 27th Jul 2019

    We had the traditional whole house fan for years and it provided a way to cool down our home quickly, but was very loud. It was not till we had our duct work and insulation updated we found out we could not seal the attic space due to this fan. I did my research and found out about the Centric Air 4.0 energy saver fan. I read several positive reviews and talked with several Heating and Cooling Companies and we were convinced this was the way to go. It is much quieter and energy efficient way of cooling and bring fresh air to our home. Now we do not have to worry about dirt and debris from the attic falling through the louvers into our living space. I was able to install it myself and am very pleased.

  • 5
    Happy wife - Happy Life

    Posted by Elmer H on 10th Jul 2019

    One of those life-changing things. Should have done this long ago. Well worth the extra bucks over those propeller-in-ceiling fans. Those are noisy, this is quiet, and really pulls the air through the the house. The Centric Air is easy to install for a handy DIYer. Cut the hole, hang the fan, plug it in and turn it on. I am happy, and even more important, my wife is happy. If you are thinking about it, get it. Happy wife - Happy Life.

  • 5
    The Best Quality Fan - WELL worth the cost!! | $50 Referral Checks

    Posted by Harry T on 30th Jun 2019

    I purchased this unit for a client, installed it last week. All I can say is WOW... This fan is so quiet I had to get back up on the ladder and stick my head up there to make sure it was actually running. Compared to the old school belt driven fan that was ugly, noisy, dirtying and drafty, there is no comparison. The build quality of this unit was impressive, now I am going to be getting one for my own home!!

    Installation is very straightforward, took longer to muscle the old fan out of the attic then it did to install this. Even though I am a contractor, I would say a weekend warrior, or average DIY should have no trouble installing. Instructions are clear and easy to follow, and presale support was excellent, I had no need to contact them after the sale as it was so easy to install. I would imagine their support to be excellent given they have quick and friendly communication.

    If you are on the fence and shopping your local home improvement stores, do yourself a favor and stop looking. yes, the unit is pricey compared to the junk local stores sell, but the quality, energy efficiency and lack of noise are WELL worth the cost!! I refer them to customers and receive $50 referrals checks.

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