

QuietCool Stealth Pro Series Whole House Fan Installation Service
QuietCool Stealth PRO Series-RF
The innovative Stealth PRO Series-RF whole house fans, a premium, professionally installed option, redefine residential cooling. Utilizing advanced Energy Saving ECM Motors, these units achieve notable energy efficiency, resulting in significant financial benefits for homeowners.
The Stealth series, engineered for robust airflow, delivers between 1,488 and 6,035 cubic feet per minute, effectively cooling spaces from 750 to 3,000 square feet. This adaptable system accommodates diverse installation configurations throughout the home, ensuring consistent comfort and optimized ventilation.
The Stealth PRO series offers a sophisticated, energy-efficient cooling solution tailored for homeowners prioritizing professional-grade whole-house fan technology.

Direct Electric Company & QuietCool are Naturally Cool together!
Direct Electric Company (visit official site) is a premier, full-service electrical contracting firm serving the Temecula/Murrieta Valley and the greater Southern California region, including San Diego, Orange, San Bernardino, and Riverside Counties. With a steadfast commitment to excellence, Direct Electric Company provides a comprehensive range of electrical solutions for residential and commercial clients.
Leveraging a team of highly skilled and certified electricians, the company excels in delivering safe, efficient, and reliable electrical installations, repairs, and maintenance. Direct Electric Company distinguishes itself through its dedication to staying at the forefront of industry advancements, ensuring clients benefit from the latest technologies and best practices.
Notably, Direct Electric Company is a certified and experienced installer of the QuietCool Stealth Pro Series whole house fans. Recognizing the significant energy efficiency and comfort benefits these systems offer, Direct Electric Company provides expert installation services, seamlessly integrating QuietCool technology into residential properties. This strategic partnership underscores their commitment to offering clients innovative, sustainable, and cost-effective solutions. By combining their electrical expertise with specialized QuietCool installation knowledge, Direct Electric Company provides a comprehensive service experience, ensuring optimal performance and customer satisfaction.
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QuietCool Stealth Pro Series-RF Features
Hover over any unique product piece to learn more about it.
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.
R5 Damper Doors:
Barometric pressurized damper doors that utilize gravity to secure the Airtight Damper Box.
High Airflow Grille:
The removable grille that can snap in or out for easy cleaning.
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.
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.
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.
Duct Collar:
The adjustable collar that helps seal and secure the Heavy Duty Steel Housing and the Airtight Damper Box with no air leakage.
Heavy Duty Steel Housing:
Powder-coated steel housing that protects the fan from wear and tear.


Limited Lifetime Warranty
on selected models
- STL PRO 1.5X
- STL PRO 2.5X
- STL PRO 3.3X
- STL PRO 4.8X
- STL PRO 5.5X
- STL PRO 6.0X
- STL PRO 7.0X

Stealth PRO Series - STL 1.5X
The STL PRO 1.5X ventilation unit is specifically designed for localized applications within bedrooms and smaller residential spaces, providing effective coverage for areas ranging from approximately 499 to 749 square feet. This single-speed fan, engineered for optimal energy efficiency, is commonly integrated into multi-fan systems. Its primary function is to provide dedicated ventilation for individual bedrooms, often working in conjunction with a larger, central fan system that serves the remaining areas of the residence. The modular nature of the STL PRO 1.5X allows for the seamless addition of supplementary units, affording homeowners the flexibility to implement individual bedroom control or to augment overall system airflow capacity, thereby ensuring a tailored and efficient ventilation solution

Stealth PRO Series - STL 2.5X
The STL PRO 2.5X ventilation system is optimally configured for dwellings such as apartments, condominiums, expansive bedrooms, and compact residences, effectively servicing spaces ranging from 847 to 1,271 square feet. This unit, featuring a two-speed operation, demonstrates exceptional energy efficiency and is typically integrated within larger bedrooms, bathrooms, laundry facilities, or corridors. Its design allows for the incorporation of supplementary fans, enabling tailored ventilation control for individual rooms or augmented airflow for enhanced system performance. This modular approach ensures a bespoke ventilation solution that aligns with specific residential requirements.

Stealth PRO Series - STL 3.3X
The STL PRO 3.3X ventilation system is optimally designed for spacious bedrooms and smaller residential structures, efficiently managing areas spanning 1,053 to 1,580 square feet. This unit, featuring a two-speed configuration, prioritizes energy efficiency and is typically implemented within larger bedrooms, expansive bathrooms, or corridors. Its architectural design facilitates the integration of supplementary fans, allowing for tailored ventilation control in individual rooms or enhanced airflow capacity for the overall system. This adaptable arrangement ensures a customized ventilation solution that precisely aligns with specific residential needs.

Stealth PRO Series - STL 4.8X
The STL PRO 4.8X ventilation system is optimally configured for small to medium-sized residential spaces, effectively managing areas spanning 1,427 to 2,140 square feet. Featuring a three-speed operation, this unit prioritizes energy efficiency and is typically integrated within hallways, lofts, or open-plan areas. Its architectural design facilitates the incorporation of supplementary, smaller fans, enabling tailored ventilation control in individual rooms or enhanced airflow capacity for the overall system. This adaptable arrangement ensures a customized ventilation solution that precisely aligns with specific residential needs.

Stealth PRO Series - STL 5.5X
The STL PRO 5.5X ventilation system is optimally designed for small to medium-sized residential spaces, efficiently managing areas spanning 1,681 to 2,522 square feet. Featuring a three-speed operation, this unit prioritizes energy efficiency and is typically integrated within hallways, lofts, or open-concept areas. Its architectural design facilitates the incorporation of supplementary, smaller fans, enabling tailored ventilation control in individual rooms or augmented airflow capacity for the overall system. This adaptable arrangement ensures a customized ventilation solution that precisely aligns with specific residential needs.

Stealth PRO Series - STL 6.0X
The STL PRO 6.0X ventilation system is optimally configured for medium to large-sized residential spaces, efficiently managing areas spanning 1,862 to 2,794 square feet. Featuring a three-speed operation, this unit prioritizes energy efficiency and is typically integrated within hallways, lofts, or open-plan areas. Its architectural design facilitates the incorporation of supplementary, smaller fans, enabling tailored ventilation control in individual rooms or augmented airflow capacity for the overall system. This adaptable arrangement ensures a customized ventilation solution that precisely aligns with specific residential needs.

Stealth PRO Series - STL 7.0X
The STL PRO 7.0X ventilation system is meticulously designed for medium to large-sized residences, efficiently regulating airflow across spaces measuring 2,332 to 3,498 square feet. This energy-efficient unit, equipped with a three-speed mechanism, is typically installed in hallways, lofts, or open-concept zones. Its design permits the integration of auxiliary, smaller fans, allowing for personalized airflow management in individual rooms or increased overall system performance. This versatile configuration ensures a tailored ventilation strategy that precisely meets specific residential requirements.
Benefits to enjoy with our QuietCool Stealth Pro Series

Energy Efficiency
Energy Efficiency
In the continuous efforts of creating new innovative ways of energy efficiency, our high efficiency motors have achieved not only a decrease in energy usage and savings but also contributes to the benefit of the environment.

Safer Air
Safer Air
The air quality within your home is important. Ensuring increased ventilation by using outdoor air, can help decrease indoor airborne pathogens and other elements such as cat/dog dander and dust that might settle within the home.

Energy Savings
Energy Savings
On average, our products use up to 90% less power then A/C, slashing A/C related costs down and consuming little power to run compared to your A/C.

Constant Comfort
Constant Comfort
Whether you want to use the whole fans to pre-cool your home in addition to A/C or use it solely, these fans provide comfortable temperatures in the comfort of your own home by just the flick of a switch.
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