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QUIETCOOL Whole House Fan: Roof Mount, 22 in Blade, 3,543 cfm Max., 2,771 sq ft Coverage - Roof-Mount Whole House Fans
QUIETCOOLRoof-Mount Whole House Fans

QUIETCOOL Whole House Fan: Roof Mount, 22 in Blade, 3,543 cfm Max., 2,771 sq ft Coverage

The QUIETCOOL RM WHF-4.0-DB is a roof-mount whole house fan with a 22-inch blade, delivering a maximum airflow of 3,543 cfm and coverage of 2,771 sq ft. It operates on 115V AC, single-phase power (nameplate 120V AC)…

SKU 3G-OTH-81411

Brand
QUIETCOOL
Item
Whole House Fan: Roof Mount, 22 in Blade, 3,543 cfm Max., 2,771 sq ft Coverage
Category
Roof-Mount Whole House Fans
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Technical Specifications

QUIETCOOL
Manufacturer Part Number
RM WHF-4.0-DB
Type
2,771 sq ft Coverage, Low Noise
Max.
3,543 cfm
Blade
22 in
Speeds
3
Quiet Design
Yes
Nominal Voltage
115V AC, Single Phase
Number of Speeds
3
Mounting Location
Roof
Nameplate Voltage
120V AC
Rough Opening Type
Square
Speed Controllable
Yes
High-Efficiency Motor
Yes
Motor Efficiency Broad
High-Efficiency Motor
Maximum Airflow - Range
3,000 to 4,999 cfm
For High-Static Pressure Applications
Yes
View Full Spec Sheet

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QUIETCOOL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The QUIETCOOL RM WHF-4.0-DB is a roof-mount whole house fan with a 22-inch blade, delivering a maximum airflow of 3,543 cfm and coverage of 2,771 sq ft. It operates on 115V AC, single-phase power (nameplate 120V AC) and features three speeds, a high-efficiency motor, and a quiet design. This square rough-opening unit is speed-controllable and designed for high-static-pressure applications.

Frequently Asked Questions

What is the QUIETCOOL RM WHF-4.0-DB whole house fan used for?

The QUIETCOOL RM WHF-4.0-DB is a roof-mount whole house fan designed to ventilate up to 2,771 sq ft of living space. It pulls hot, stale air out through the roof, drawing in cooler outside air through open windows. Its high-static-pressure design makes it suitable for homes with restrictive ductwork or long attic runs.

What are the specifications of the QUIETCOOL RM WHF-4.0-DB?

The QUIETCOOL RM WHF-4.0-DB features a 22-inch blade delivering a maximum airflow of 3,543 cfm. It operates on 115V AC, single-phase power (nameplate 120V AC) with three speeds. The unit has a square rough opening, a high-efficiency motor, and is designed for quiet operation in high-static-pressure applications.

Where to buy the QUIETCOOL RM WHF-4.0-DB worldwide?

3G Electric supplies the QUIETCOOL RM WHF-4.0-DB to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time; we source and deliver this roof-mount whole house fan to any international destination.

How to install a roof-mount whole house fan like the QUIETCOOL RM WHF-4.0-DB?

Installation of a roof-mount whole house fan requires cutting a square rough opening in the roof deck, securing the fan housing, and sealing all joints to prevent leaks. Ensure the attic has adequate intake vents. Wire the fan to a dedicated 120V AC circuit with a speed controller. Always follow local building codes and the manufacturer's manual.

Used in

Common applications for QUIETCOOL
Residential whole-house ventilation — QUIETCOOL QC CL-4700 RF ceiling-mount fan for cooling large homes up to 2,207 sq ft
Attic temperature management — QUIETCOOL AFG SMT ES-3.0 gable-mount fan for attics up to 4,000 sq ft with thermostat control
Solar-powered attic exhaust — QUIETCOOL AFG SLR-40W gable-mount fan for off-grid or energy-saving installations
Garage exhaust ventilation — QUIETCOOL GA ES-1500 garage-mount fan for removing heat and fumes from garages up to 2,300 sq ft
Roof-mounted attic ventilation — QUIETCOOL AFR SMT ES-2.0 roof-mount fan for attics up to 3,000 sq ft with fire safety shutoff

QUIETCOOL Products

3G Electric supplies QUIETCOOL roof-mount whole house fans. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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