Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
QUIETCOOL Whole House Fan: Roof Mount, 22 in Blade, 3,543 cfm Max., 2,831 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., 2,831 sq ft Coverage

The QUIETCOOL RM WHF-4.0-DG1 is a roof-mount whole house fan with a 22-inch blade, delivering a maximum airflow of 3,543 cfm and coverage up to 2,831 sq ft. It features a high-efficiency motor, three speeds, and is…

SKU 3G-OTH-81423

Brand
QUIETCOOL
Item
Whole House Fan: Roof Mount, 22 in Blade, 3,543 cfm Max., 2,831 sq ft Coverage
Category
Roof-Mount Whole House Fans
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

QUIETCOOL
Manufacturer Part Number
RM WHF-4.0-DG1
Type
2,831 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

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The QUIETCOOL RM WHF-4.0-DG1 is a roof-mount whole house fan with a 22-inch blade, delivering a maximum airflow of 3,543 cfm and coverage up to 2,831 sq ft. It features a high-efficiency motor, three speeds, and is speed controllable, operating on 115V AC single phase (nameplate 120V AC). Designed for high-static-pressure applications, this square rough-opening unit offers quiet operation.

Frequently Asked Questions

What is the QUIETCOOL RM WHF-4.0-DG1 whole house fan used for?

The QUIETCOOL RM WHF-4.0-DG1 is a roof-mount whole house fan designed to ventilate up to 2,831 sq ft of living space. It pulls hot, stale air out through the roof, drawing in cooler outside air through open windows. It is suitable for high-static-pressure applications and operates quietly with three speeds.

What are the specifications of the QUIETCOOL RM WHF-4.0-DG1?

The QUIETCOOL RM WHF-4.0-DG1 has a 22-inch blade, maximum airflow of 3,543 cfm, and covers up to 2,831 sq ft. It runs on 115V AC single phase (nameplate 120V AC), features a high-efficiency motor, three speeds, and is speed controllable. The rough opening is square, and it mounts on the roof.

Where to buy the QUIETCOOL RM WHF-4.0-DG1 worldwide?

3G Electric supplies the QUIETCOOL RM WHF-4.0-DG1 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 lead time; we source and deliver this roof-mount whole house fan internationally.

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

Installation requires cutting a square rough opening in the roof, securing the fan housing, and wiring to a 115V AC single-phase circuit. Ensure the unit is level and sealed against weather. For best performance, balance the fan with open windows. Always follow local building codes and the manufacturer's manual for safe installation.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
Whole House Fan: Ceiling Mount, 18 in Blade, 4,415 cfm Max., 2,207 sq ft Coverage, Low Noise (MPN QC CL-4700 RF). Key specifications — Mounting Location: Ceiling; Quiet Design: Yes; Speed Controllable: Yes; Duct Shape: Round; Rough Opening Type: Rectangular; Brand: QUIETCOOL; Fan Style: Whole-House; For High-Static Pressure Applications: Yes.
QUIETCOOL
Whole House Fan: Ceiling Mount, 18 in Blade, 4,415 cfm Max., 2,207 sq ft Coverage, Low Noise (MPN QC CL-4700 RF). Key specifications — Mounting Location: Ceiling; Quiet Design: Yes; Speed Controllable: Yes; Duct Shape: Round; Rough Opening Type: Rectangular; Brand: QUIETCOOL; Fan Style: Whole-House; For High-Static Pressure Applications: Yes.
QUIETCOOL
QUIETCOOL
Whole House Fan: Ceiling Mount, 24 in Blade, 6,924 cfm Max., 3,462 sq ft Coverage, Low Noise (MPN QC CL-7000 RF). Key specifications — Mounting Location: Ceiling; Quiet Design: Yes; Speed Controllable: Yes; Duct Shape: Round; Rough Opening Type: Rectangular; Brand: QUIETCOOL; Fan Style: Whole-House; For High-Static Pressure Applications: Yes.
Whole House Fan: Ceiling Mount, 22 in Blade, 5,665 cfm Max., 2,833 sq ft Coverage, Low Noise (MPN QC CL-6000 RF). Key specifications — Mounting Location: Ceiling; Quiet Design: Yes; Speed Controllable: Yes; Duct Shape: Round; Rough Opening Type: Rectangular; Brand: QUIETCOOL; Fan Style: Whole-House; For High-Static Pressure Applications: Yes.
QUIETCOOL
Whole House Fan: Ceiling Mount, 22 in Blade, 5,665 cfm Max., 2,833 sq ft Coverage, Low Noise (MPN QC CL-6000 RF). Key specifications — Mounting Location: Ceiling; Quiet Design: Yes; Speed Controllable: Yes; Duct Shape: Round; Rough Opening Type: Rectangular; Brand: QUIETCOOL; Fan Style: Whole-House; For High-Static Pressure Applications: Yes.
Whole House Fan: Ceiling Mount, 20 in Blade, 5,024 cfm Max., 2,512 sq ft Coverage, Low Noise (MPN QC CL-5400 RF). Key specifications — Mounting Location: Ceiling; Quiet Design: Yes; Speed Controllable: Yes; Duct Shape: Round; Rough Opening Type: Rectangular; Brand: QUIETCOOL; Fan Style: Whole-House; For High-Static Pressure Applications: Yes.
QUIETCOOL
Whole House Fan: Ceiling Mount, 20 in Blade, 5,024 cfm Max., 2,512 sq ft Coverage, Low Noise (MPN QC CL-5400 RF). Key specifications — Mounting Location: Ceiling; Quiet Design: Yes; Speed Controllable: Yes; Duct Shape: Round; Rough Opening Type: Rectangular; Brand: QUIETCOOL; Fan Style: Whole-House; For High-Static Pressure Applications: Yes.
Whole House Fan: Ceiling Mount, 18 in Blade, 4,195 cfm Max., 2,098 sq ft Coverage, Low Noise (MPN QC ES-4700 RF). Key specifications — Mounting Location: Ceiling; Quiet Design: Yes; Speed Controllable: Yes; Duct Shape: Round; Rough Opening Type: Rectangular; Brand: QUIETCOOL; Fan Style: Whole-House; For High-Static Pressure Applications: Yes.
QUIETCOOL
Whole House Fan: Ceiling Mount, 18 in Blade, 4,195 cfm Max., 2,098 sq ft Coverage, Low Noise (MPN QC ES-4700 RF). Key specifications — Mounting Location: Ceiling; Quiet Design: Yes; Speed Controllable: Yes; Duct Shape: Round; Rough Opening Type: Rectangular; Brand: QUIETCOOL; Fan Style: Whole-House; For High-Static Pressure Applications: Yes.
Whole House Fan: Ceiling Mount, 22 in Blade, 5,576 cfm Max., 2,788 sq ft Coverage, Low Noise (MPN QC ES-6000 RF). Key specifications — Mounting Location: Ceiling; Quiet Design: Yes; Speed Controllable: Yes; Duct Shape: Round; Rough Opening Type: Rectangular; Brand: QUIETCOOL; Fan Style: Whole-House; For High-Static Pressure Applications: Yes.
QUIETCOOL
Whole House Fan: Ceiling Mount, 22 in Blade, 5,576 cfm Max., 2,788 sq ft Coverage, Low Noise (MPN QC ES-6000 RF). Key specifications — Mounting Location: Ceiling; Quiet Design: Yes; Speed Controllable: Yes; Duct Shape: Round; Rough Opening Type: Rectangular; Brand: QUIETCOOL; Fan Style: Whole-House; For High-Static Pressure Applications: Yes.

More from QUIETCOOL

View all QUIETCOOL parts →
Whole House Fan: Roof Mount, 22 in Blade, 3,543 cfm Max., 2,771 sq ft Coverage, Low Noise, 3 Speeds (MPN RM WHF-4.0-DB). Key specifications — Mounting Location: Roof; Quiet Design: Yes; Speed Controllable: Yes; Rough Opening Type: Square; Brand: QUIETCOOL; For High-Static Pressure Applications: Yes; High-Efficiency Motor: Yes; Nameplate Voltage: 120V AC.
QUIETCOOL
Whole House Fan: Roof Mount, 22 in Blade, 3,543 cfm Max., 2,771 sq ft Coverage, Low Noise, 3 Speeds (MPN RM WHF-4.0-DB). Key specifications — Mounting Location: Roof; Quiet Design: Yes; Speed Controllable: Yes; Rough Opening Type: Square; Brand: QUIETCOOL; For High-Static Pressure Applications: Yes; High-Efficiency Motor: Yes; Nameplate Voltage: 120V AC.
Whole House Fan: Roof Mount, 22 in Blade, 3,543 cfm Max., 3,439 sq ft Coverage, Low Noise, 3 Speeds (MPN RM WHF-4.0-PL). Key specifications — Mounting Location: Roof; Quiet Design: Yes; Speed Controllable: Yes; Rough Opening Type: Square; Brand: QUIETCOOL; For High-Static Pressure Applications: Yes; High-Efficiency Motor: Yes; Nameplate Voltage: 120V AC.
QUIETCOOL
Whole House Fan: Roof Mount, 22 in Blade, 3,543 cfm Max., 3,439 sq ft Coverage, Low Noise, 3 Speeds (MPN RM WHF-4.0-PL). Key specifications — Mounting Location: Roof; Quiet Design: Yes; Speed Controllable: Yes; Rough Opening Type: Square; Brand: QUIETCOOL; For High-Static Pressure Applications: Yes; High-Efficiency Motor: Yes; Nameplate Voltage: 120V AC.
Whole House Fan: Roof Mount, 22 in Blade, 3,543 cfm Max., 2,771 sq ft Coverage, Low Noise, 3 Speeds (MPN RM WHF-4.0-DG2). Key specifications — Mounting Location: Roof; Quiet Design: Yes; Speed Controllable: Yes; Rough Opening Type: Square; Brand: QUIETCOOL; For High-Static Pressure Applications: Yes; High-Efficiency Motor: Yes; Nameplate Voltage: 120V AC.
QUIETCOOL
Whole House Fan: Roof Mount, 22 in Blade, 3,543 cfm Max., 2,771 sq ft Coverage, Low Noise, 3 Speeds (MPN RM WHF-4.0-DG2). Key specifications — Mounting Location: Roof; Quiet Design: Yes; Speed Controllable: Yes; Rough Opening Type: Square; Brand: QUIETCOOL; For High-Static Pressure Applications: Yes; High-Efficiency Motor: Yes; Nameplate Voltage: 120V AC.