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26040 Ynez Road, Temecula, CA United States of America 1-888-QUIETCOOL Mon-Fri 8:00 AM - 5:00 PM PST Contact Us

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QuietCool is the "V" in HVAC - Click to Learn More
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FEATURES

Hover over any unique product piece to learn more about it.

Adjustable Hanging Strap:
Keyhole straps that allow you to adjust up or down without removing the screw so the fan can be hung in nearly every attic space.
High-Performance Acoustical Ducting:
Noise dampening technology with insulated ducting that is used to separate the Steel Housing from the living space.
Duct Clasp:
Duct clasp that helps secure the ducting to the Airtight Damper Box and Steel Housing without screws or tape.
Airtight Damper Box:
Damper Box with R5 insulated doors that prevent any heat transfer from the attic to the living area.
High Airflow Grille:
The removable grille that can snap in or out for easy cleaning.
R5 Damper Doors:
Barometric pressurized damper doors that utilize gravity to secure the Airtight Damper Box.
Heavy Duty Steel Housing:
Powder-coated steel housing that protects the fan from wear and tear.
Ultra Energy-Efficient ECM Motor:
The brush-free Electronically Commutated Motor is the world’s most efficient motor which increases up to 70% efficiency in lower speeds.
Computer Balanced Fan Blades:
High-performance fan blades that cut through the air in the most efficient and effective way possible.
Hand Guard:
Guard that protects from potential injury or fan obstruction.
Duct Collar:
The adjustable collar that helps seal and secure the Heavy Duty Steel Housing and the Airtight Damper Box with no air leakage.

MODELS

STL-1.5
  • CFM 1,479

  • HVI 916 CFM 1,040

  • Watts 66.7

  • Amps 0.9

  • Volts 120V

  • Vertical Adapter VA-1414 (optional)

  • Covers up to 439 SQFT to 739 SQFT

  • Recommended Attic Venting 1.98 SQFT

  • Grille Size 16” x 16”

  • dBA 37.2

  • Click to Listen

STL-2.5
  • CFM Hi: 2,541 / Low: 2,018

  • HVI 916 CFM Hi: 1,920 / Low: 1,510

  • Watts Hi: 157 / Low: 82.3

  • Amps Hi: 2.12 / Low: 1.12

  • Volts 120V

  • Vertical Adapter VA-1418 (optional)

  • Covers up to 847 SQFT to 1271 SQFT

  • Recommended Attic Venting 3.39 SQFT

  • Grille Size 16” x 20”

  • dBA Hi: 42.7 / Low: 37.2

  • Click to Listen

STL-3.3
  • CFM Hi: 3,159 / Low: 1,980

  • HVI 916 CFM Hi: 2,350 / Low: 1,470

  • Watts Hi: 264 / Low: 74.6

  • Amps Hi: 3.44 / Low: 1.02

  • Volts 120V

  • Vertical Adapter VA-1422 (optional)

  • Covers up to 1053 SQFT to 1580 SQFT

  • Recommended Attic Venting 4.22 SQFT

  • Grille Size 16” x 24”

  • dBA Hi: 47.4 / Low: 36.1

  • Click to Listen

STL-4.8
  • CFM Hi: 4,280 / Med: 3,500 / Low: 2,361

  • HVI 916 CFM Hi: 3,130 / Med: 2,560 / Low: 1,670

  • Watts Hi: 408 / Med: 225 / Low: 73.9

  • Amps Hi: 5.16 / Med: 3.00 / Low: 1.07

  • Volts 120V

  • Vertical Adapter VA-1430 (optional)

  • Covers up to 1,427 SQFT to 2,140 SQFT

  • Recommended Attic Venting 5.71 SQFT

  • Grille Size 16” x 32”

  • dBA Hi: 47.4 / Med: 41.6 / Low: 33.0

  • Click to Listen

STL-5.5
  • CFM Hi: 5,044 / Med: 4,238 / Low: 2,870

  • HVI 916 CFM Hi: 3,750 / Med: 3,070 / Low: 2,010

  • Watts Hi: 490 / Med: 268 / Low: 88.0

  • Amps Hi: 6.31 / Med: 3.67 / Low: 1.30

  • Volts 120V

  • Vertical Adapter VA-1430 (optional)

  • Covers up to 1,681 SQFT to 2,522 SQFT

  • Recommended Attic Venting 6.73 SQFT

  • Grille Size 16” x 32”

  • dBA Hi: 50.7 / Med: 43.6 / Low: 35.6

  • Click to Listen

STL-6.0
  • CFM Hi: 5,587 / Med: 4,262 / Low: 3,428

  • HVI 916 CFM Hi: 4,030 / Med: 3,070 / Low: 2,440

  • Watts Hi: 462 / Med: 210 / Low: 113

  • Amps Hi: 5.91 / Med: 2.90 / Low: 1.65

  • Volts 120V

  • Vertical Adapter VA-1436 (optional)

  • Covers up to 1,862 SQFT to 2,794 SQFT

  • Recommended Attic Venting 7.45 SQFT

  • Grille Size 16” x 38”

  • dBA Hi: 49.3 / Med: 42.5 / Low: 38.5

  • Click to Listen

STL-7.0
  • CFM Hi: 6,996 / Med: 5,448 / Low: 4,308

  • HVI 916 CFM Hi: 5,200 / Med: 3,990 / Low: 3,180

  • Watts Hi: 725 / Med: 319 / Low: 166

  • Amps Hi: 8.61 / Med: 4.09 / Low: 2.27

  • Volts 120V

  • Vertical Adapter VA-1436 (optional)

  • Covers up to 2,332 SQFT to 3,498 SQFT

  • Recommended Attic Venting 9.33 SQFT

  • Grille Size 16” x 38”

  • dBA Hi: 51.7 / Med: 45.3 / Low: 41.4

  • Click to Listen

clipped SoundIcon 133x133 1 Quiet Operation

These whisper-quiet and energy-efficient wonders are the #1 residential cooling & ventilation appliance on the market

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How it Works

Our Whole House Fans utilize what already exists to create something offered nowhere else. Open two or three windows a few inches wide, turn on your QuietCool Whole House Fan, and experience fresh, cool air replacing your indoor air in 3-4 minutes. Your Whole House Fan will quietly pull air through the windows, into the attic, and out the attic vents giving you a cost effective way to keep your home cool and healthy.

QuietCool Is The V In HVAC

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thermal mass cooling

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Save up to 50-90%

Save up to 50-90% on A/C related costs and even more on preventative care that protects your attic, home, and A/C from costly damages with a QuietCool Whole House Fan. You won’t only use your A/C less but your home will be cooler longer because our products do something A/C can’t; cool the thermal mass of your home.

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Save up to 50-90%

Save up to 50-90% on A/C related costs and even more on preventative care that protects your attic, home, and A/C from costly damages with a QuietCool Whole House Fan. You won’t only use your A/C less but your home will be cooler longer because our products do something A/C can’t; cool the thermal mass of your home.

Vertical Adapter

Don’t have a conventional attic space above your living area? Utilize a Vertical Adapter and cool your home with a side attic. These adapters were created as some homes do not have attics above their living area. Some homes throughout the country have a side attic against their wall and only enough attic space for our Whole House Fans in this area. When this is the case, these homes can use a Vertical Adapter so our R5 Damper Doors can still operate successfully while offering the entire home cooling and comfort.

ZAP

Zone Air Pathway

This innovative pathway allows any room to get the cooling and comfortability of QuietCool while keeping your privacy. Installed above any bedroom door and fitted with baffle technology that reduces sound and ensures privacy through the vent makes these a necessity in single system homes. They work simply as a conduit for the air to travel through as your QuietCool Whole House Fan still pulls air out of your open window it simply passes through the ZAP before ascending into the attic! If you want privacy AND cooling, get a ZAP installed above your bedroom door today!

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ZAP

Zone Air Pathway

This innovative pathway allows any room to get the cooling and comfortability of QuietCool while keeping your privacy. Installed above any bedroom door and fitted with baffle technology that reduces sound and ensures privacy through the vent makes these a necessity in single system homes. They work simply as a conduit for the air to travel through as your QuietCool Whole House Fan still pulls air out of your open window it simply passes through the ZAP before ascending into the attic! If you want privacy AND cooling, get a ZAP installed above your bedroom door today!

Experience a More Comfortable Way to Live

Being comfortable in your own home is essential. This is why our products ensure you can experience a relaxing breeze, whenever you need it. Simply turn your QuietCool Whole House Fan and experience a breezy beach day right in your living room.

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Experience a More Comfortable Way to Live

Being comfortable in your own home is essential. This is why our products ensure you can experience a relaxing breeze, whenever you need it. Simply turn your QuietCool Whole House Fan and experience a breezy beach day right in your living room.

Control Your Fan From Anywhere

Our Wireless RF Control Kit allows you to turn on your QuietCool Whole House Fan from anywhere in your home! Use up to 100 feet away and receive cooling without ever leaving your bedroom.

Half Section RF

Control Your Fan From Anywhere

Our Wireless RF Control Kit allows you to turn on your QuietCool Whole House Fan from anywhere in your home! Use up to 100 feet away and receive cooling without ever leaving your bedroom.

Half Section RF

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Ultra-Fast Installation

Our Pro Series should be installed by a local contractor. This installation process is quick, simple, and will start your savings as soon as possible.

Whole House Fan Sizing Formula

We generally utilize a formula of 2, 2.5, or 3 CFM (Cubic Feet per Minute) per square foot of living area. A decent system would be 2 CFM, a better system would be 2.5 CFM, and the greatest system would be 3 CFM. Simply use the calculator on this website to determine how much CFM you require in your home. This mathematical formula will always work for any size home, and remember that the more airflow you have, the better.

The Size Factor

There are two more variables to keep in mind when determining the size of a whole house fan.

Climate: A decent cooling system should function well in a coastal environment where the climate is cooler If you live in a desert area where the environment is hot during the day but cooler at night, the best approach would be to use a solar power system.

Ceilings: If the ceilings in your home are higher than 8 feet, you’ll want to size the system a little larger to account for the greater air volume.

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Which Whole House Fan is Right For You?

Please answer the three questions accurately as possible to see your suggested QuietCool Pro Series Fan System.

VENTING CALCULATOR

Enter the number of vents in your home for each vent type.

THE DREAM VENTILATION SYSTEM

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ZONED (Multi-Fan) SYSTEM

Whole House Fan + Whole House Fan

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A multi-zoned ventilation and air-conditioning system allows the homeowner complete control over their demands. A zoned system’s total CFM requirements must be met by the combined CFM of all zoned units (not just one fan). When the entire house needs to be cooled, all designated fans can be activated simultaneously. A zoned system, on the other hand, provides for more precise airflow management for each individual room.

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THE PERFECT SAVINGS TANDEM

Whole House Fan + Attic Fan

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Whole house fans and attic fans are the perfect companion products that serve two different purposes for the same cause. Your whole house fan will pre-cool your house the night before and help cool the thermal mass of your home to keep your home cooler the next day. The attic fan will help keep your attic cooler during the hottest parts of the day. Your end result can be huge savings! Say goodbye to the days of your A/C cycling on and off causing expensive electric bills.

Thousands of 5 Star Reviews

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