QuietCool RM WHF-4.0-DG1 Roof Mount Whole House Fan - For Flat Roof Homes with No Attic - Up to 3543 CFM - As low as 219 Watts - Three Speed - Included 24" Damper Grille, and Wireless RF Control

QuietCool offers whole house fans for every type of home imaginable. For flat roof homes or sloped roof homes that have cathedral ceilings, our Roof Mount Whole House Fan line is the perfect solution for improved comfort, ventilation, and savings. Say goodbye to relying solely on traditional cooling methods like air conditioning, which can be costly due to rising electricity prices. QuietCool whole house fans use cooler outdoor air to efficiently cool and ventilate your home and attic. This not only fosters a healthier indoor environment but also significantly reduces energy usage, potentially saving you up to 50 to 90% on your A/C-related electricity bills. Furthermore, QuietCool whole house fans greatly improve indoor air quality. By continuously swapping stale indoor air with fresh outdoor air, this fan helps remove pollutants, allergens, and other contaminants that can build up inside your home. It also helps prevent moisture buildup, reducing the risk of mold and mildew. When properly sized, the QuietCool can provide a complete air exchange every 3 to 4 minutes. Every QuietCool RM whole house fan includes a three speed Electronically Commutated Motor, or ECM, that offers ultra-energy efficiency, included wireless controls, and an industry leading 15-year warranty. The RM WHF-4.0-DG1 is designed for homes that have small, 6” or greater, rafter bays between the ceiling of the home and the roof. This fan uses the rafter bay as an air passage between the fan unit and the damper grille. The DG1 model includes the RM WHF-4.0 fan unit and a 24" x 24" damper ceiling grille. The DG1 model was designed for rafters that are 24” or greater on center. The damper grille included with the DG1 model needs 24” of clearance. Instead of discharging the air from the home into the attic, this fan discharges the air directly outside. This allows homeowners with little to no attic space to enjoy all of the benefits of QuietCool. The Roof Mount line of whole house fans allow you to turn off your most expensive appliance and improve the air quality and comfort of your home in just minutes.