QuietCool Attic Fans for Whisper-Quiet Whole House Cooling

The QuietCool Energy Saver Classic QC ES-6000 is one of the best whole house fans, combining high airflow with low energy use to keep your home or grow space comfortably cool. As a ducted whole house fan, it uses a patented, self-contained duct and barometric R5 damper system that hangs in the attic, neutralizing sound and vibration so you can run it even while people are sleeping. Unlike many noisy electric attic fans, this system delivers up to 5,576 CFM on high while using just 455 watts, covering up to 2,790 sq ft at 2 CFM per sq ft.

Cool Attic Whole House Fan for Homes and Grow Rooms

Whether you’re using it as a cool attic whole house fan for your home or to quietly exhaust heat from an indoor garden, this unit outperforms typical house fans with its efficient 2-speed motor, 9-foot 22" duct, and easy, no-framing installation that fits 16" or 24" on-center joists. With a 10-year warranty and compatibility with electronic timers or Wi-Fi smart controls (sold separately), the QC ES-6000 gives you precise, reliable ventilation control for both residential and hydroponic environments.

Key features:

• Whisper-quiet air exchange – Patented self-contained duct system keeps noise in the attic, ideal for stealth grow rooms and indoor gardens near living spaces.

• High CFM for large grow spaces – Up to 5,576 CFM on high, providing strong air exchanges for bigger tents, rooms, or multi-room hydro setups.

• Energy-efficient cooling – Uses just 455 W on high / 112 W on low, helping control grow-room temps without the cost of running more AC.

• Easy integration with controls – Works with 8-hour electronic timers, double 3-way switches, or Wi-Fi smart controls (not included) for automated ventilation cycles.

• No major structural work – No framing or joist cutting required; fits 16" or 24" on-center, making retrofit into existing grow spaces much easier.

• Improved environmental stability – Strong, ducted airflow plus minimum suggested attic venting of 7.44 sq ft helps evacuate heat and humidity to support healthier plants and equipment longevity.

Specification	Details
Motor Voltage	120 VAC, 60 Hz
Energy Use	Hi: 455 Watts / Low: 112 Watts
Air Flow	Hi: 5576 CFM / Low: 3417 CFM
Square Foot Coverage @ 2 CFM per SQ FT	Covers up to 2790 SQ FT
Number of Speeds	2
Duct Diameter	22"
Duct Length	9 feet
Motor Head Diameter	22 1/2"
Motor Head Length	13 1/2"
Dampers	Barometric Pressurized R5 Dampers
Controls (not included)	8 Hour Electronic Timer and Double 3-Way Switch or Wi-Fi Smart Control (not included)
Warranty	10 Years
Framing	None required
Joist Cutting	None required; fits 16" or 24" on center
Minimum Suggested Attic Venting	7.44 SQ FT net free area
Ceiling Rough Opening	14 1/4" x 36 1/4"
Removable Grille Outside Dimension	16" x 328"