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QuietCool 2 Speed 4505 CFM Classic Whole House Fan CL-4700

Build Time:
1 to 3 Business Days ?
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Build Time

The product Build Time you see represented on this site is only a typical number of days the manufacturer states it needs to build the product(s) when ordered. Build times are based on business days (excludes weekends & holidays).

The build time does not include the time it will take to ship the order to you (the customer). If an order has multiple items and comes from multiple warehouses, you may receive part of your order on one day, and then receive the remaining part(s) of your order at a later date.

*Please be aware that seasonal demand of certain equipment may cause build times to run longer than what is typical.

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LIST: $1,099.00
Only $999.00
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The QuietCool "classic" patented line of whole house cooling and ventilation fans have revolutionized the residential cooling industry. Open the window and let a QuietCool system exchange your stale hot air for cool air 15-20 times per hour and reduce your a/c related energy costs by 50-90% and see your electricity bills plunge!

Using an innovative (and patented) self-contained acoustical ducted system to separate the fan motor-head from the ceiling intake grill, our ducted fans sound "whisper quiet" within the home, making the loud, old-fashioned attic fan obsolete. Our whole house fans also include an airtight gravity damper system that seals shut when the fan is turned off, thus preventing air back flow into the house, while providing an above-industry standard R-5 insulation value.

The original "classic" line of whole house fans is perfect for the budget conscious consumer and pay for themselves on average within 1.3 - 1.8 years; the fastest payback period for any "green energy" appliance on the market today, all backed by an industry-leading 10 year warranty.


  • CFM/Watt-efficiency rating 8.9
  • Square foot coverage @ 2 CFM per sq ft = 2,350
  • R value at closed damper R 5.0
  • Dampers air tight insulated dampers
  • Controls remote control or hard wire capabilities
  • No framing required - fits between "16 or 24" on center joists
  • No joist cutting necessary
  • Minimum suggested attic venting = 6.2 sq ft net free area
  • Ceiling grill color white- high volume air flow

Ceiling rough opening 14 1/4" x 26 1/4"

Ceiling grill outside dimension 16" x 28"

UL Component UL listing numbers

Motor - E62815; E62788; E62862

Power Cord - E55178; E147323

RACO Handy Box & Cover - E195978

Acoustic Duct - MH11637

Model No.:
CL -4700
Made In U.S.A.:
Whole House Fans
CFM Low:
CFM High:
Decibels (dBA):
Dimension Inches:
Width: 28" Depth: " Height: 16"
Drive Type:
Limited Warranty:
10 Years Limited
Watts High:
Weight lbs.:
Notice: Manufacturer's products features and specifications are subject to change without notice.
California Residents: warning WARNING- This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, please visit


Ask a Question
  • Is it a variable speed fan, or just on and off? Product being considered is CL=4700.

    This QuietCool whole house fan has 2 speeds.