CENTRIC AIR 4.0 Whole House Fan & 2-SPEED REMOTE (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 4.0 with 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. Call for FREE Expert Advice |  Factory Fans Direct 888-849-1233
  • 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.   Call for FREE Expert Advice |  Factory Fans Direct 888-849-1233
  • NEW SILENT COOL R-5 ENERGY STAR 1" POLY FOAM DAMPER (Included) Call for FREE Expert Advice |  Factory Fans Direct 888-849-1233
  • Designer High-flow grille 16" X 30"  is designed to minimize noise from air movement (Included) Call for FREE Expert Advice |  Factory Fans Direct 888-849-1233
  • Centric Air offer a R-50 & R-10 Cold/Hot Weather Damper that can be used in either a ceiling or wall.  (Optional) Bottom View. Call for FREE Expert Advice |  Factory Fans Direct 888-849-1233
  • 100% Money Back Guarantee. Call for FREE Expert Advice |  Factory Fans Direct 888-849-1233
  • Assembled in the USA. Call for FREE Expert Advice |  Factory Fans Direct 888-849-1233
  • 15 Year Limited Warranty. Call for FREE Expert Advice |  Factory Fans Direct 888-849-1233
MSRP: $2,174.00
Now: $1,806.00
Was: $1,978.00
— You save $368.00


Centric Air 4.0 Whole House Fan 3921 CFM (HVI-916) to 4400 Sq. Ft. with 2-Speed Remote with Temp & Timer | $25 OFF COUPON J9C7W6T6DT

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 with 2-Speed Remote with Temp & Timer | Optional 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, 2-Speed remote control and all necessary hardware. Also available with select CentricAir products are the R-10 & R-50 cold climate damper. (See included & upgrade options below)

Centric Air German Engineered Whole House Fan Motor



Included (2-Speed Remote 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.

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". 
 Upgrade Option (Cold Weather R-10 & R-50 Power Damper)
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. 

3921 actual CFM (max); 2184 CFM low speed


Fits in between 16" or 24" on center joists


120 VAC, 60 Hz

Unit weight

64 lbs total

Damper box size

28" × 14" × 13.75" (L × W × H)

Grille size (outer)

16" x 30"

Required attic venting

5.0 sq. ft. net-free

Rough opening

14" × 28"


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


20-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


6.13 CFM/Watt (max)

Energy use

640 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
  • Single Speed Smart Wifi Plug – Compatible with Back Draft Damper
  • Wireless 1 Speed Remote Control – 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
Optional Wall Mount Adapter Choice of:
  • No Adapter required for ceiling installation
  • Vertical Wall Mount Adapter for Wall Installation

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

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 49 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 2-Speed remote control with timer is the 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 3921 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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13 Reviews

  • 5
    Out with the Old | In with the New

    Posted by Steve A on 30th Apr 2023

    Had an old 36 inch belt drive whole house fan in my home. It was noisy, dirty and a real pain. Mike at Factory Fans Direct gave me guidance in removing the old and installing the new Centric 4.0 with 2 speed remote and what a difference. I can now sleep at night and it cools the house and no noise. I love it. Why did I not do this sooner. Call Mike at Factory Fans Direct. He is the best.

  • 5
    Best Customer Service | $50 Referral Checks

    Posted by Steve O on 6th Mar 2023

    Love this fan. The staff at Factory Fans Direct are pros.. They walked me through the install over the phone. I referred a neighbor and received a $50 check. 5 Star operation.

  • 5
    $50 Checks for Referring Friends and Neighbors | The Best Whole House Fan on the Market

    Posted by Mitch W on 28th Jun 2020

    The Centric Air is by far the best whole house fan with its German engineered 5 blade motor that is computer balanced and a R 5 poly foam energy star damper. The new two speed remote is superior with a temp zone. All this and $50 checks for referring friends and neighbors. This is the best deal around. Call Mike he will give you a great deal.

  • 5
    Well Designed and Super Quiet | 2-Speed Remote with Temp Sensor

    Posted by Eric P on 1st Apr 2020

    The Centric Air 4.0 was a great addition to our home. Cooled our home and was super quiet and liked how the remote had multiple speeds and the Temp Zone feature.

  • 5
    Incredible Whole House Fan | Super Quiet | $50 Referral Checks

    Posted by Barry N on 16th Feb 2020

    The Centric Air is an incredible whole house fan. German motor, computer balanced, advanced damper and super quiet. I had a few friends come over and they so impressed by the power and quietness of the fan they wanted one. I referred them to Mike at Factory Fans Direct and received multiple $50 referral checks. 5-Star Company

  • 5
    Super Quiet Whole House Fan

    Posted by June G on 18th Jan 2020

    My husband and I have a 3800 Sq. Ft. three story home. The upper area is really hot. We installed the 4.0 with the two speed remote and heat gone. Super Quiet.

  • 5
    Large Home | Big Fan

    Posted by Tony H on 27th Dec 2019

    We have a 5,000 Sq Ft tri-level home in CO and during the summer the heat on the third level is unbearable. We choose the Centric Air 4.0 with two speed remote and heat gone. The fan is very quiet. Pleased...

  • 5
    Super Quiet and Power Fan | $50 Referral Checks

    Posted by Allan L on 27th Nov 2019

    We wanted a quiet fan with a remote and multiple speed. We got that and more with the Centric Air 4.0. Very pleased. Thank you Mike for the time you spent with us. I told friends about my fan and they wanted one. They bought from Mike and I received a $50 check. WOW..

  • 5
    Super Quiet!! and Powerful Whole Hose Fan

    Posted by Greg G on 4th Nov 2019

    We have a large 4,000 sq ft home with second level heat issues. We selected the Centric Air 4.0 and it removed the heat, cooled the house and the fan is super quiet and a powerful fan. 5 Stars

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