CentricAir 4.0 whole house fan delivers a powerful 3921 CFM (HVI-916). It requires about 5.0 sqft 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 sqft and 1-story homes up to 3000 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)
All CFM ratings listed for QA-Deluxe have been verified by an independent testing agency authorized by the State of California as meeting the strict (HVI-916) airflow testing standards.
The CentricAir 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% power while using 1/3 less energy as compared to other industry standard fans.
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.
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.
The CentricAir 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.
The German-engineered sealed motor and damper never requires lubrication or maintenance of any type.
3921 actual CFM (max); 3184 CFM low speed
Fits in between 16" or 24" on center joists
120 VAC, 60 Hz
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
14" × 28"
Low profile, hi-air flow, cube-core aluminum (white)
20-inch, industrial-grade motorized impeller
Remote control or wall switch
Industrial-grade maintenance free damper
54 Decibals (dBA) on high; 52 dBA low speed
6.29 CFM/Watt (max)
15 year limited fan motor warranty. All other components and electrical parts are warranted for 1 year from date of purchase. Warranty excludes batteries.
Due to product improvements and equipment upgrades, performance ratings and specifications are subject to change without notice.