Experience the benefits of a whole house fan even if you have limited attic space.
This fan requires a minimum attic clearance of 36" and can cover 1181 to 1771 square feet.
This roof-mounted fan includes one 14" x 30" Damper box, one 20" x 9' duct and one 14" x 30" grille.
Download the Roof Mount Whole House Fan User Guide/Installation Manual
Download the Roof Mount Whole House Fan 4.0 DB Specification Sheet
Features:
- 3 speeds
- Includes Duct, Damper Box and Grille
- Ultra Energy Efficient Electronically Commutated Motor (ECM)
- RF Wireless Control Kit Included
- 15 year warranty
- Made in the United States
Specifications:
- Airflow (CFM): 3543 High/3205 Medium/2878 Low
- HVI-916 Airflow (for CA Title 24 New Construction) (CFM): 2730 High/2390 Medium/ 2100 Low
- Energy Use (Watts): 377 High/280 Medium/202 Low
- Covers: 1181 to 1771 square feet
- Speeds: 3
- Minimum Attic Clearance: 36"
- Duct Diameter: 20"
- Duct Length: 9 feet
- Dampers: Barometric Pressurized R5 Dampers 14” x 30”
- Motor Head Diameter: 24.75"
- Motor Voltage: 120 Vac, 60 Hz
- Warranty: 15 years
- Roof Opening 22" circle
- Framing: Roof Rafter: 24" on center; Ceiling Joist: 24" on center
- Minimum Suggested Attic Venting: None
- Removable Grille Outer Dimension: 16" x 32"
- Ceiling Rough Opening: 14.25" x 30.25"
- Includes: RM WHF 4.0 fan; 9 foot duct; damper box, removable grille, cut-out template; accessory bag; RF wireless Control Kit
- Note - RF Switch and RF Hub have a range restriction of 100 feet
1.888.845.6597
