Professional Installation
Trident Pro X Whole House Fan
Our Trident Pro X Series is the powerful Whole House Fan that is ideal for any home in need of maximum airflow. With our patented design, robust aiflow, and reliable production, you can experience supreme cooling.
- Permanent Split Capacitor Motor (PSC)
- 115 watts to 1,147 watts depending on model
- 1,498 CFM to 7,015 CFM depending on model
Give us a call if you need assistance 1‑888‑QUIETCOOL
FEATURES
Hover over any unique product piece to learn more about it.

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.Energy-Efficient PSC Motor:
Permanent Split Capacitor Motor that uses sealed ball bearings to increase durability and longevity. 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.

QC TRI PRO-1.5X
CFM 1,498
HVI 916 CFM 1,110
Watts 115
Amps 1.19
Volts 120V
Vertical Adapter VA-1414 (optional)
Covers up to 499 SQFT to 749 SQFT
Recommended Attic Venting 2 SQFT
Grille Size 16” x 16”
dBA 37.4

QC TRI PRO-2.5X
CFM Hi: 2,490 / Low: 1,934
HVI 916 CFM Hi: 1,800 / Low: 1,370
Watts Hi: 244 / Low: 198
Amps Hi: 2.46 / Low: 1.89
Volts 120V
Vertical Adapter VA-1418 (optional)
Covers up to 830 SQFT to 1,245 SQFT
Recommended Attic Venting 3.32 SQFT
Grille Size 16” x 20”
dBA Hi: 43.2 / Low: 37.4

QC TRI PRO-3.3X
CFM Hi: 3,216 / Low: 2,890
HVI 916 CFM Hi: 2,450 / Low: 2,230
Watts Hi: 323 / Low: 274
Amps Hi: 2.77 / Low: 2.36
Volts 120V
Vertical Adapter VA-1422 (optional)
Covers up to 1,072 SQFT to 1,608 SQFT
Recommended Attic Venting 4.29 SQFT
Grille Size 16” x 24”
dBA Hi: 49.4 / Low: 46.8

QC TRI PRO-4.8X
CFM Hi: 4,428 / Low: 3,436
HVI 916 CFM Hi: 3,260 / Low: 2,570
Watts Hi: 555 / Low: 417
Amps Hi: 4.73 / Low: 3.58
Volts 120V
Vertical Adapter VA-1430 (optional)
Covers up to 1,476 SQFT to 2,214 SQFT
Recommended Attic Venting 5.91 SQFT
Grille Size 16” x 32”
dBA Hi: 49.4 / Low: 43.2

QC TRI PRO-5.5X
CFM Hi: 5,068 / Low: 4,438
HVI 916 CFM Hi: 3,940 / Low: 3,220
Watts Hi: 632 / Low: 522
Amps Hi: 5.56 / Low: 4.53
Volts 120V
Vertical Adapter VA-1430 (optional)
Covers up to 1,689 SQFT to 2,534 SQFT
Recommended Attic Venting 6.76 SQFT
Grille Size 16” x 32”
dBA Hi: 51.2 / Low: 45.7

QC TRI PRO-6.0X
CFM Hi: 5,708 / Low: 4,319
HVI 916 CFM Hi: 4,150 / Low: 3,190
Watts Hi: 777 / Low: 560
Amps Hi: 6.90 / Low: 5.09
Volts 120V
Vertical Adapter VA-1436 (optional)
Covers up to 1,903 SQFT to 2,854 SQFT
Recommended Attic Venting 7.62 SQFT
Grille Size 16” x 38”
dBA Hi: 51.1 / Low: 44.1

QC TRI PRO-7.0X
CFM Hi: 7,015 / Low: 5,548
HVI 916 CFM Hi: 5,300 / Low: 4,150
Watts Hi: 1,147 / Low: 797
Amps Hi: 10.30 / Low: 7.15
Volts 120V
Vertical Adapter VA-1436 (optional)
Covers up to 2,338 SQFT to 3,507 SQFT
Recommended Attic Venting 9.36 SQFT
Grille Size 16” x 38”
dBA Hi: 54.3 / Low: 47.4
Quiet Operation
These whisper-quiet and energy-efficient wonders are the #1 residential cooling & ventilation appliance on the market
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.
Clean Air for the Indoor Generation
According to the American Lung Association, homes are like lungs, they need to breathe to make sure that fresh air comes in and dirty air goes out. To keep your home safe you have to introduce fresh, outdoor air to dilute these indoor pollutants. Turning on your QuietCool Whole House Fan means you no longer have to recycle your air, you can let your home breathe.
Clean Air for the Indoor Generation
According to the American Lung Association, homes are like lungs, they need to breathe to make sure that fresh air comes in and dirty air goes out. To keep your home safe you have to introduce fresh, outdoor air to dilute these indoor pollutants. Turning on your QuietCool Whole House Fan means you no longer have to recycle your air, you can let your home breathe.
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.
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!
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!

Whole House Fan Sizing Formula
We utilize a standard formula of 2, 2,5, or 3 CFM per square foot of living area. 2 CFM would be sufficient for a good system, 2.5 CFM for a better system, and 3 CFM for the best system. Utilize the calculator on this page to determine the amount of CFM required for your home. This formula will always work, regardless of the size of the home, and remember that the greater the airflow, the better.
Considerations for Size
When sizing a whole-house fan system, there are two additional aspects to keep in mind:
In a coastal area where the environment is colder, a well-designed system should be able to function. There are a number of factors to consider when deciding on the ideal system for a desert environment where temperatures can fluctuate greatly throughout the day and night.
If the ceilings in your home are higher than 8 feet, you’ll need to size the system a little larger to account for the increased airflow.
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
ZONED (Multi-Fan) SYSTEM
Whole House Fan + Whole House Fan
Allows the homeowner to have complete control over their ventilation and cooling needs with a multi-zoned system. A zoned system’s total CFM requirements are met by adding the cumulative CFM of all zoned units, not by adding the CFM of each zoned fan individually. Zoned fans can be used simultaneously to cool a large area of a residence. However, a zoned system provides for more precise airflow management in each individual bedroom.
THE PERFECT SAVINGS TANDEM
Whole House Fan + Attic Fan
Whole house fans and attic fans are complementary products that provide two distinct functions for the same objective. The night before, your whole-house fan will pre-cool your home and help cool the thermal mass of your home to keep your home cooler the following day. During the hottest portions of the day, the attic fan will assist keep your attic cooler. Your ultimate result might be substantial savings! Say goodbye to the days when your air conditioner cycling on and off caused high electricity bills.
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