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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 Whole House Fan: Roof Mount (SKU 787L89, MPN RM WHF-4.0-DG2) 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…

SKU 3G-OTH-81433

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-DG2
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 Whole House Fan: Roof Mount (SKU 787L89, MPN RM WHF-4.0-DG2) 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 (nameplate 120V AC), features three speeds, and is speed controllable. Designed for high-static-pressure applications, it includes a high-efficiency motor and a quiet design, with a square rough opening.

Frequently Asked Questions

What is the QUIETCOOL roof-mount whole house fan used for?

The QUIETCOOL RM WHF-4.0-DG2 roof-mount whole house fan is designed to ventilate residential or commercial spaces up to 2,771 sq ft. It exhausts hot indoor air through the roof, drawing in cooler outside air, reducing reliance on air conditioning. Its high-static-pressure capability suits ducted or restricted installations.

What are the specifications of the QUIETCOOL RM WHF-4.0-DG2?

This QUIETCOOL fan has a 22-inch blade, maximum airflow of 3,543 cfm, and covers 2,771 sq ft. It operates on 115V AC single phase (nameplate 120V AC), offers three speeds, and is speed controllable. Features include a high-efficiency motor, quiet design, and square rough opening for roof mounting.

Where to buy the QUIETCOOL RM WHF-4.0-DG2 worldwide?

3G Electric supplies the QUIETCOOL RM WHF-4.0-DG2 roof-mount whole house fan to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and a shipping quote to your region.

How to install a QUIETCOOL roof-mount whole house fan?

Install the QUIETCOOL RM WHF-4.0-DG2 by cutting a square rough opening in the roof, securing the fan housing, and sealing against leaks. Wire the 115V AC single-phase motor per local codes, using a speed controller if desired. Ensure attic ventilation is adequate for the 3,543 cfm airflow.

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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