Stay safe during COVID 19 by following the CDC Guidelines, washing your hands, social distancing, and keeping good air quality in your home with a Quite Cool Whole House Fan.

QuietCool Stealth Pro Series

Stealth Pro Series Whole House Fan

The Stealth Pro is the newest and most advanced line in the Pro series. These units are also only available for purchase by consumers through an authorized dealer like QC Oklahoma. 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 fewer 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!

QC Oklahoma recommends use of a QuietCool Whole House Fan in conjunction with a Smart Gable Fan, which could save you up to 90%.

Patented Design

Patented Design

QuietCool whole house fans have a unique patented design that suspends the whole house fan above the ceiling. This not only reduces noise drastically, but it also can prevent anything from coming back into your home.

15-Year Industry Leading Warranty

QuietCool stands behind their products so much that they have given the Pro series fans a 15-Year manufacturer motor warranty. With a QuietCool whole house fan, you will have the confidence that your whole house fan would be covered for years and even longer! If at any chance your QuietCool Stealth Pro does not make it to the 15-year mark, you can rest easy because QuietCool honors their warranties.

15-Year Industry Leading Warranty
Electronically Commutated Motors (ECM)

These motors are perfect if moderate electrical efficiency is needed. These motors have a peak efficiency that occurs at specific speed points. Normally, PSC motors are designed with multiple speeds and only achieving maximum efficiency on the highest speed. As the lower speeds are used, the efficiency of the motor dramatically decreases. 

Stealth Pro Includes:

  • R5 Damper Box
  • High air-flow removable grille
  • Wireless RF Control Kit

R5 Insulated Damper System

This damper system ensures that no heating or cooling loss between the home and attic is possible. If you compare the QuietCool whole house fan systems to a traditional whole house fan, you will come to find out the traditional whole house fans with the old-style shutters have zero insulated R-Value.

R5 Insulated Damper System

Stealth Pro Models

STL PRO-1.5X

STL PRO-1.5X
  • Name
    STL PRO-1.5X
  • Airflow*
    1479 CFM
  • HVI-916 Airflow (CA Title 24)**
    1040 CFM
  • dBA
    Hi: 37.2
  • Energy Efficiency
    66.7 Watts
  • Grille
    16 x 16
  • Attic Venting
    1.98 Sq.ft net free area
  • Covers Up To***
    439 SQFT to 739 SQFT / Small Rooms

STL PRO-2.5X

STL PRO-2.5X
  • Name
    STL PRO-2.5X
  • Airflow*
    Hi: 2541 CFM / Low: 2018 CFM
  • HVI-916 Airflow (CA Title 24)**
    Hi: 1920 CFM / Low: 1510 CFM
  • dBA
    Hi: 43.2 / Low: 37.2
  • Energy Efficiency
    Hi: 157 Watts / Low: 82.3 Watts
  • Grille
    16 in. x 20 in.
  • Attic Venting
    3.39 Sq.ft net free area
  • Covers Up To***
    847 SQFT to 1271 SQFT / Large Rooms

STL PRO-3.3X

STL PRO-3.3X
  • Name
    STL PRO-3.3X
  • Airflow*
    Hi: 3159 CFM / Low: 1980 CFM
  • HVI-916 Airflow (CA Title 24)**
    Hi: 2350 CFM / Low: 1470 CFM
  • dBA
    Hi: 47.4 / Low: 36.1
  • Energy Efficiency
    Hi: 264 Watts / Low: 74.6 Watts
  • Grille
    16 in. x 24 in.
  • Attic Venting
    4.22 Sq.ft net free area
  • Covers Up To***
    1053 SQFT to 1580 SQFT / Small Homes

STL PRO-4.8X

STL PRO-4.8X
  • Name
    STL PRO-4.8X
  • Airflow*
    Hi:4280 CFM / Med:3500 CFM
    Low:2361 CFM
  • HVI-916 Airflow (CA Title 24)**
    Hi: 3130 CFM / Med: 2560 CFM / Low: 1670 CFM
  • dBA
    Hi: 47.4 / Med: 43.2 / Low: 33.0
  • Energy Efficiency
    Hi: 408 Watts / Med: 225 Watts
    Low: 73.9 Watts
  • Grille
    16 in. x 32 in.
  • Attic Venting
    5.71 Sq.ft net free area
  • Covers Up To***
    1427 SQFT to 2140 SQFT / Medium Homes

STL PRO-5.5X

STL PRO-5.5X
  • Name
    STL PRO-5.5X
  • Airflow*
    Hi:5044 CFM / Med:4238 CFM
    Low:2870 CFM
  • HVI-916 Airflow (CA Title 24)**
    Hi: 3750 CFM / Med: 3070 CFM / Low: 2010 CFM
  • dBA
    Hi: 50.7 / Med: 45.7 / Low: 35.6
  • Energy Efficiency
    Hi: 490 Watts / Med: 268 Watts
    Low: 88 Watts
  • Grille
    16 in. x 32 in.
  • Attic Venting
    6.73 Sq.ft net free area
  • Covers Up To***
    1681 SQFT to 2522 SQFT / Medium/Large Homes

STL PRO-6.0X

STL PRO-6.0X
  • Name
    STL PRO-6.0X
  • Airflow*
    Hi:5587 CFM / Med:4262 CFM
    Low:3428 CFM
  • HVI-916 Airflow (CA Title 24)**
    Hi: 4030 CFM / Med: 3070 CFM / Low: 2440 CFM
  • dBA
    Hi: 51.1 / Med: 45.7 / Low: 38.5
  • Energy Efficiency
    Hi: 462 Watts / Med: 210 Watts
    Low: 113 Watts
  • Grille
    16 in. x 38 in.
  • Attic Venting
    7.45 Sq.ft net free area
  • Covers Up To***
    1862 SQFT to 2794 SQFT / Large Home

STL PRO-7.0X

STL PRO-7.0X
  • Name
    STL PRO-7.0X
  • Airflow*
    Hi:6996 CFM / Med:5448 CFM
    Low:4308 CFM
  • HVI-916 Airflow (CA Title 24)**
    Hi: 5200 CFM / Med: 3990 CFM / Low: 3180 CFM
  • dBA
    Hi: 54.3 / Med: 47.4 / Low: 41.4
  • Energy Efficiency
    Hi: 725 Watts / Med: 319 Watts
    Low: 166 Watts
  • Grille
    16 in. x 38 in.
  • Attic Venting
    9.33 Sq.ft net free area
  • Covers Up To***
    2332 SQFT to 3498 SQFT / Large/Extra Large Homes
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