Retail Pricing: $1750-2350 based on application. (See below. Includes Oahu delivery).
Many Hawaii homes have small attics, open beam construction, or vaulted ceilings where a ducted QuietCool system is impractical. In 2020, with input from Island Cooling, QuietCool Manufacturing developed the Roof Mounted whole house fan (RM4.0). This system is a first of its kind whole house fan mounted on the roof with 4 possible interior applications.
DG1: Homes with open beam construction or direct installation use a 22″x22″ ceiling damper with louvers that open and close.
DG2: In homes with large ceiling beams (2×12), the ceiling bay is used a plenum to install two 14″x14″ louvered ceiling grills to ventilate two separate areas.
DB: Homes with limited attic space can use a 20″ duct and damper box (DB1430) but bypass the attic for direct ventilation.
PL: An option to install a plenum box for homes with direct installation offsets the intake and RM4.0 for quieter operation.
Motor: Brushless ECM 3-Speed
Energy Use: Hi: 391 Watts / Med: 284 Watts / Low: 197 Watts
Air flow: Hi: 4,186 CFM / Med: 3,830 CFM / Low: 3,355 CFM (Will vary based on interior application).
Warranty: 15 year motor, 1 year other parts
Controls: Wireless remote with countdown timer and 3 speed control. (3AAA batteries included).
Dimensions: 24.75″x24.75″x18″, roof opening 22 circle