The Stealth Pro is the second line in our Pro series. These units are also only available for purchase through one of our authorized wholesalers which can only be purchased by a licensed contractor. The models’ CFM range and speed options are similar to the Trident Pro series, along with the controls also being included in the box. The major component that separates the Stealth Pro series from the Trident series is the electronically commutated (ECM) AC/DC brushless motor. These motors are breaking new ground in the world of whole house fans! The motor contains a microchip that allows the motor to cycle from alternating current, to direct current. This is what has homeowners so excited and allows the incredible energy savings! Another great benefit of this “brushless” motor is there are less moving parts, which translates to fewer parts at risk of being damaged. The Stealth Pro series also comes with an industry leading 15-year motor warranty! If reducing your energy footprint by the largest margin is your main focus, or if you are looking to save the most money, then the Stealth Pro is the answer you have been looking for!
Stealth Pro Fan Features
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Innovative and Patented Design
The QuietCool Stealth Pro whole house fan features our patented, self-contained duct system that hangs in the attic to help neutralize any noise vibrations. The result is being able to use the system at any time without sound disturbance.
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R5 Insulated Damper System
The included damper system features barometric pressurized gravity dampers that ensure there will be no heating/cooling loss between the home and attic. Compare this to traditional whole house fans that have old-style shutters with zero R-Value and it is not quite close.
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Electronically Commutated AC/DC Brushless Motor
All QuietCool Stealth Pro Line fans include our ultra-high efficiency electronically commutated AC/DC brushless motors. Known as “ECM” motors, these motors offer ultra-high efficiency with very high CFM/Watt ratios. All Stealth Pro fans operate on low wattage and low amperage. These motors are so efficient that they can help homeowners slash their A/C related electricity costs by up to 50-90%.
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Industry Leading Warranty
QuietCool offers an industry leading 15‐year warranty. With QuietCool, you will have the confidence that your fan will be operating at its fullest potential for a decade, or more likely, even longer! And if by some chance it breaks during that decade, you will know that you are completely covered on any parts that make up your QuietCool fan motor assembly.
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98% Customer Satisfaction
QuietCool enjoys 98% total customer satisfaction. Enjoy peace of mind from thousands of satisfied QuietCool customers. For testimonials, please visit our Testimonial page.
Steath Pro Models
STEALTH PRO-1.5X
| Motor Voltage | 120 VAC, 60 Hz |
| Energy Use | 66.7 Watts |
| Air Flow | 1479 CFM |
| HVI-916 Airflow (for CA Title 24 New Construction) | 1040 CFM |
| dBA | Hi: 37.2 |
| Recommended SQFT Coverage @ 2-3 CFM per SQFT | Covers 439 SQFT to 739 SQFT |
| Minimum Attic Clearance | 32” |
| # of Speeds | 1 |
| Duct Diameter | 14” |
| Duct Length | 6 feet |
| Motor Head Diameter | 14 1/2” |
| Motor Head Length | 13 1/2” |
| Dampers | Barometric Pressurized R5 Dampers |
| Controls | Included: 8 Hr Electronic Timer Optional: IT-36002 QuietCool RF Wireless Control Kit |
| Warranty | 15 Years |
| Framing | None Required |
| Joist Cutting | None Required; fits 16” or 24” on center |
| Minimum Suggested Attic Venting | 1.98 SQ FT net free area |
| Ceiling Rough Opening | 14 1/4” x 14 1/4” |
| Removable Grille Outside Dimension | 16” x 16” |
| Shipping Weight | 43 lbs. |
| Box Dimensions | 20” x 20” x 38” |
| In The Box |
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STEALTH PRO-2.5X
| Motor Voltage | 120 VAC, 60 Hz |
| Energy Use | Hi: 157 Watts / Low: 82.3 Watts |
| Air Flow | Hi: 2541 CFM / Low: 2018 CFM |
| HVI-916 Airflow (for CA Title 24 New Construction) | Hi: 1920 CFM / Low: 1510 CFMCFM |
| dBA | Hi: 43.2 / Low: 37.2 |
| Recommended SQFT Coverage @ 2-3 CFM per SQFT | Covers 847 SQFT to 1271 SQFT |
| Minimum Attic Clearance | 34” |
| # of Speeds | 2 |
| Duct Diameter | 16” |
| Duct Length | 6 feet |
| Motor Head Diameter | 16 1/2” |
| Motor Head Length | 13 1/2” |
| Dampers | Barometric Pressurized R5 Dampers |
| Controls | Included: 8 Hr Electronic Timer & HI-LOW-OFF switch Optional: IT-36002 QuietCool RF Wireless Control Kit |
| Warranty | 15 Years |
| Framing | None Required |
| Joist Cutting | None Required; fits 16” or 24” on center |
| Minimum Suggested Attic Venting | 3.39 SQ FT net free area |
| Ceiling Rough Opening | 14 1/4” x 18 1/4” |
| Removable Grille Outside Dimension | 16” x 20” |
| Shipping Weight | 49 lbs. |
| Box Dimensions | 24” x 20” x 38” |
| In The Box |
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STEALTH PRO-3.3X
| Motor Voltage | 120 VAC, 60 Hz |
| Energy Use | Hi: 264 Watts / Low: 74.6 Watts |
| Air Flow | Hi: 3159 CFM / Low: 1980 CFM |
| HVI-916 Airflow (for CA Title 24 New Construction) | Hi: 2350 CFM / Low: 1470 CFM |
| dBA | Hi: 47.4 / Low: 36.1 |
| Recommended SQFT Coverage @ 2-3 CFM per SQFT | Covers 1053 SQFT to 1580 SQFT |
| Minimum Attic Clearance | 34” |
| # of Speeds | 2 |
| Duct Diameter | 16” |
| Duct Length | 6 feet |
| Motor Head Diameter | 16 1/2” |
| Motor Head Length | 13 1/2” |
| Dampers | Barometric Pressurized R5 Dampers |
| Controls | Included: 8 Hr Electronic Timer & HI-LOW-OFF switch Optional: IT-36002 QuietCool RF Wireless Control Kit |
| Warranty | 15 Years |
| Framing | None Required |
| Joist Cutting | None Required; fits 16” or 24” on center |
| Minimum Suggested Attic Venting | 4.22 SQ FT net free area |
| Ceiling Rough Opening | 14 1/4” x 22 1/4” |
| Removable Grille Outside Dimension | 16” x 24” |
| Shipping Weight | 55 lbs. |
| Box Dimensions | 27” x 20” x 38” |
| In The Box |
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STEALTH PRO-4.8X
| Motor Voltage | 120 VAC, 60 Hz |
| Energy Use | Hi: Hi: 408 Watts / Med: 225 Watts / Low: 73.9 Watts |
| Air Flow | 4280 CFM / Med: 3500 CFM / Low: 2361 CFM |
| HVI-916 Airflow (for CA Title 24 New Construction) | Hi: 3130 CFM / Med: 2560 CFM / Low: 1670 CFM |
| dBA | 47.4 / Med: 43.2 / Low: 33.0 |
| Recommended SQFT Coverage @ 2-3 CFM per SQFT | Covers 1427 SQFT to 2140 SQFT |
| Minimum Attic Clearance | 36” |
| # of Speeds | 3 |
| Duct Diameter | 18” |
| Duct Length | 9 feet |
| Motor Head Diameter | 18 1/2” |
| Motor Head Length | 13 1/2” |
| Dampers | Barometric Pressurized R5 Dampers |
| Controls | Included: 8 Hr Electronic Timer & Double 3-way switch Optional: IT-36002 QuietCool RF Wireless Control Kit |
| Warranty | 15 Years |
| Framing | None Required |
| Joist Cutting | None Required; fits 16” or 24” on center |
| Minimum Suggested Attic Venting | 5.71 SQ FT net free area |
| Ceiling Rough Opening | 14 1/4” x 30 1/4” |
| Removable Grille Outside Dimension | 16” x 32” |
| Shipping Weight | 75 lbs. |
| Box Dimensions | 36” x 22” x 40” |
| In The Box |
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STEALTH PRO-5.5X
| Motor Voltage | 120 VAC, 60 Hz |
| Energy Use | Hi: 490 Watts / Med: 268 Watts / Low: 88 Watts |
| Air Flow | Hi: 5044 CFM / Med: 4238 CFM / Low: 2870 CFM |
| HVI-916 Airflow (for CA Title 24 New Construction) | Hi: 3750 CFM / Med: 3070 CFM / Low: 2010 CFM |
| dBA | Hi: 50.7 / Med: 45.7 / Low: 35.6 |
| Recommended SQFT Coverage @ 2-3 CFM per SQFT | Covers 1681 SQFT to 2522 SQFT |
| Minimum Attic Clearance | 38” |
| # of Speeds | 3 |
| Duct Diameter | 20” |
| Duct Length | 9 feet |
| Motor Head Diameter | 20 1/2” |
| Motor Head Length | 13 1/2” |
| Dampers | Barometric Pressurized R5 Dampers |
| Controls | Included: 8 Hr Electronic Timer Double 3-way switch Optional: IT-36002 QuietCool RF Wireless Control Kit |
| Warranty | 15 Years |
| Framing | None Required |
| Joist Cutting | None Required; fits 16” or 24” on center |
| Minimum Suggested Attic Venting | 6.73 SQ FT net free area |
| Ceiling Rough Opening | 14 1/4” x 30 1/4” |
| Removable Grille Outside Dimension | 16” x 32” |
| Shipping Weight | 75 lbs. |
| Box Dimensions | 39” x 24” x 39” |
| In The Box |
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STEALTH PRO-6.0X
| Motor Voltage | 120 VAC, 60 Hz |
| Energy Use | Hi: 462 Watts / Med: 210 Watts / Low: 113 Watts |
| Air Flow | Hi: 5587 CFM / Med: 4262 CFM / Low: 3428 CFM |
| HVI-916 Airflow (for CA Title 24 New Construction) | Hi: 4030 CFM / Med: 3070 CFM / Low: 2440 CFM |
| dBA | Hi: 51.1 / Med: 45.7 / Low: 38.5 |
| Recommended SQFT Coverage @ 2-3 CFM per SQFT | Covers 1862 SQFT to 2794 SQFT |
| Minimum Attic Clearance | 42” |
| # of Speeds | 3 |
| Duct Diameter | 22” |
| Duct Length | 9 feet |
| Motor Head Diameter | 22 1/2” |
| Motor Head Length | 13 1/2” |
| Dampers | Barometric Pressurized R5 Dampers |
| Controls | Included: 8 Hr Electronic Timer & Double 3-way switch Optional: IT-36002 QuietCool RF Wireless Control Kit |
| Warranty | 15 Years |
| Framing | None Required |
| Joist Cutting | None Required; fits 16” or 24” on center |
| Minimum Suggested Attic Venting | 7.45 SQ FT net free area |
| Ceiling Rough Opening | 14 1/4” x 36 1/4” |
| Removable Grille Outside Dimension | 16” x 38” |
| Shipping Weight | 96 lbs. |
| Box Dimensions | 41” x 26” x 39” |
| In The Box |
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STEALTH PRO-7.0X
| Motor Voltage | 120 VAC, 60 Hz |
| Energy Use | Hi: 725 Watts / Med: 319 Watts / Low: 166 Watts |
| Air Flow | Hi: 6996 CFM / Med: 5448 CFM / Low: 4308 CFM |
| HVI-916 Airflow (for CA Title 24 New Construction) | Hi: 5200 CFM / Med: 3990 CFM / Low: 3180 CFM |
| dBA | Hi: 54.3 / Med: 47.4 / Low: 41.4 |
| Recommended SQFT Coverage @ 2-3 CFM per SQFT | Covers 2332 SQFT to 3498 SQFT |
| Minimum Attic Clearance | 44” |
| # of Speeds | 3 |
| Duct Diameter | 24” |
| Duct Length | 9 feet |
| Motor Head Diameter | 24 1/2” |
| Motor Head Length | 13 1/2” |
| Dampers | Barometric Pressurized R5 Dampers |
| Controls | Included: 8 Hr Electronic Timer & Double 3-way switch Optional: IT-36002 QuietCool RF Wireless Control Kit |
| Warranty | 15 Years |
| Framing | None Required |
| Joist Cutting | None Required; fits 16” or 24” on center |
| Minimum Suggested Attic Venting | 9.33 SQ FT net free area |
| Ceiling Rough Opening | 14 1/4” x 36 1/4” |
| Removable Grille Outside Dimension | 16” x 38” |
| Shipping Weight | 97 lbs. |
| Box Dimensions | 41” x 28” x 39” |
| In The Box |
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Get Started Now!
Get Your QuietCool Stealth Pro X Whole House Fans to keep your family cool and save money!
Steath Pro Fan Installation
QuietCool whole house fans are easy to install for the skilled do‐it‐your‐selfer and licensed contractor alike. Every system comes with very detailed, full‐color, written instructions that walk you step‐by‐step through the installation process.
You can access a detailed installation video and wiring video for your model below. In every case, we strongly recommend that a competent, licensed electrician complete all wiring connections.
QC Manufacturing recommends all listed, Authorized QuietCool Dealers for your sales and installation needs. Visit our Dealer Locator to find a dealer near you.