QUIETCOOL RM WHF-4.0-DB Roof-Mount Whole House Fan
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
Also listed as: RMWHF40DB · RM WHF 4 0 DB · RM-WHF-4-0-DB
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
Need installation or engineering help?
Ask a question
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.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
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 QUIETCOOLQUIETCOOL 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
Compatible alternatives & equivalents
- QUIETCOOL Ceiling-mount whole house fan with 24-inch blade delivering up to 6,924 cfm for spaces up to 3,462 sq ft. Features a round duct shape, rectangular rough opening, and two-speed control for high-static pressure applications. Operates on 115V AC single-phase power with a standard-efficiency motor and quiet design
- QUIETCOOL Ceiling-mount whole house fan with 18 in blade, delivering up to 4,195 cfm for coverage of 2,098 sq ft. Features a high-efficiency motor, two speeds, and speed controllability. Operates on 115V AC single phase (nameplate 120V AC) and is designed for high-static-pressure applications. Suitable for ventilating residential spaces with long or restricted duct runs