QuietCool QC CL-4700 Whole House Fan Cooling
Upgrade to powerful, natural ventilation with the QuietCool QC CL-4700 Classic, a high-CFM whole house fan that cools homes up to 2,400 sq ft while improving indoor air quality. Its acoustical ducting and R5-insulated damper box keep operation whisper-quiet at just 54 dB.
High CFM, Quiet Two-Speed Ventilation
Flow rates of 4,757 CFM (high) and 3,586 CFM (low) rapidly pull cool outdoor air in and push heat out of living spaces and the attic, helping to clear humidity, allergens, and stale air fast.
Energy-Efficient Attic Ventilation & Easy Install
Use this fan to slash A/C costs by 50–90% with natural night cooling and fresh-air exchange. Install is straightforward—hang in the attic, connect the duct, fit the 14.25″ x 26.25″ grille (no framing needed), and wire to a two-speed wall switch for simple control.
Specifications:
-
4,757 CFM on high / 3,586 CFM on low
-
Power usage: 533W high / 491W low
-
Voltage: 120 VAC
-
R5 magnetic damper doors
-
No framing needed