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Features and Benefits of a QuietCool System?
Feature - Cools whole house up to 30 degrees and cools attic up to 50 degrees

Benefit - Cuts Air Conditioner costs by 50% to 90%* and reduces Air Conditioner wear and maintenance

Feature - Exchanges the air in the entire house 15 to 20 times per hour

Benefit - Brings in fresh air and can help to control mold, mildew and smoke. May help to reduce airborne sickness

Feature - Works to exhausts cooking, pet, smoke and other bad odors

Benefit - Provides an odor free home

Feature - Whisper quiet operation

Benefit - Allows for sleeping, talking, or watching television without noise annoying noise (as in a traditional belt drive whole house fan

Feature - Mix and match the perfect custom system for any size home

Benefit - Control your total whole house fan investment costs

Feature - The most energy efficient whole house fans on the market!

Benefit - Re-pay your initial investment faster than any other green product on the market

Feature - 10 Year QuietCool Manufacturer Warranty**

Benefit - No maintenance or moving parts such as a motorized door to break which equals 10 years of worry free use!

Feature - A complete self contained whole house fan in a box

Benefit - Simple do-it-yourself installation or get professional installation***

Feature - No joist framing or structural incursion to the ceiling or attic

Benefit - No permits required

Need Installation?
If you are interested in having your QuietCool fans professionally installed, we have a local installers that offers fast, professional and clean installations. With over 8 years of experience with installing QuietCool whole house fans.

Call us today at 1-877-667-4663 for a no hassle no obligation over the phone and free estimate today

Guaranteed Lowest Install Price Around

Servicing all Southern California County's

**Receive free shipping when installed by our preferred technicians in Southern California**
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Installation Instructions and Downloads

Download The Classic Line Installation Guide(.pdf)specification sheet QC CL-6400
Download The Energy Saver "ES" Line Installation Guide(.pdf)specification sheet QC CL-6400
Download QuietCool Product Information Sheet (.pdf)specification sheet QC CL-6400

Browse our full list of QuietCool Products and start saving money today!


Size A Whole House Fan

The cool breeze starts when you turn on your fans and open a window or two. The cooler outside air will immediately begin to create a breeze inside the home making the homeowner feel up to 10 degrees cooler, instantly. QuietCool fans are to be used anytime the outside air is cooler than the inside air. Never use a whole houe fan and air conditioning at the same time.

Use This Chart To Select The Right Whole House Fans For Your Home: Whole house fans are measured by the amount of air they move which is referred to as "CFM." For proper airflow, a whole house fan system should generate CFM's that are between 2-3 times the sq. footage of the home. For example, a 1,500 sq. foot home should have whole house fans (either a single or combination of fans) that can produce a total of 3,000 to 4,500 CFM.

Here Is Some More Sizing Help: #1 - Single Fan) Do you want a single fan installed in a central location? If yes, refer to the chart below and choose a "Classic Fan" or "Energy Saver Fan" that has a CFM that is 2-3 times your homes square footage. With a single fan, the total cost of the fan and installation is less expensive compared to a multi-fan system.
or
#2 - Multiple Fans) If you desire multiple fans, use the same formula (2-3 times your Sq. Footage) and choose a combination of fans by selecting ONE of the larger CFM Fans (QC CL-3100, QC CL-4700, QC CL-4500, QC CL-6400, or ES-2000, ES-2850 QC ES-5400) to be installed in the hallway and select one or more smaller fans (QC-1500, QC-2250, ES-1250, ES-1700) to be installed in each occupied bedroom that has attic space above the ceiling. The benefit of choosing a multi-fan and multi-location installation is that you can enjoy zoned cooling by being able to close your bedroom doors at night as well as the ability to turn individual fans on and off depending on your cooling needs and the outside temperature. The ideal setup is multiple fans wired to a series of wall switches with an electronic timer. Being able to run the QuietCool Fans all night while you sleep is a huge advantage on those hot summer nights, especially in upstairs bedrooms. Other manufacturers will not generally recommend that you place their whole house fans in a bedroom due to the loud noise that they generate.

Either of the above methods will work great as long as the CFM to Square Footage formula is followed. If you still need more help, give us a call!

#3 - Choosing Between The Classic Line vs. Energy Saver Line) All QuietCool fan systems work the same way to obtain the goal of performing high volume air exchanges necessary to achieve thermal mass cooling. The only difference between the two systems is the type of motor used. Also, Classic fan motors (except the QC CL-1500) can be wired for two speeds per motor (HI/Low/Off) for additional functionality. The Energy Saver fans are single speed.

Homeowners who are looking to buy the least expensive system are encouraged to purchase a system from the Classic line. The systems in the the Classic Line uses a high performance permanent split capacitor type motor that delivers average to above-average energy efficiency.

Homeowners who are looking to buy a system that is the least expensive to operate, in terms of electricity consumption, should purchase a system from the Energy Saver (ES) Line. The systems in the Energy Saver line uses a specially built AC/DC, Brushless motor that allows for the highest energy efficiency.

ECM — aka “electronically commutated motors” — are very durable and energy efficient motors that contain within them an internal rectifier that converts AC current to DC voltage. An ECM motor gains momentum immediately after the system is turned on, it quickly converts from AC to DC which significantly reduces the amount of electricity needed to run the system.

#4 - Attic Venting Venting for your Whole House Fan System)
Whole house fans vent air from the house, to the attic, and then to the outside via the attic. In order for a system to run efficiently, there needs to be adequate attic venting to allow the system to push the air to the outside.

For most homes built prior to California’s 2014 Title 24 new home building codes, the calculation is simple: we recommend a minimum of 1 square foot of net free vent area for every 750 CFM moved by your QuietCool system. The ratio is 1 s.f. : 750 CFM.

For new construction homes built to 2014 Title 24 codes, the ratio is 1 s.f. : 375 CFM.

For example, a QC CL-4500 requires 6 s.f. of net venting, while a Title 24-built home would need 12 s.f. of net venting.
The venting requirement is not something of concern to most QuietCool purchasers unless the home was built before the mid 1970s. Most homes built since the mid 1970 will have adequate venting to vent a superior QuietCool system, and all Title 24 homes will defintiley have the required venting, or they won’t pass inspection.

However, for all instllations, we encourage contractors and dealers to visually inspect, and calculate the available venting in any attic where a QuietCool system is to be installed.

Classic Line Models
QC CL-1500
SALE PRICE: $569.00
QC CL-2250
SALE PRICE: $649.00
QC CL-3100
SALE PRICE: $769.00
QC CL-4500
Discontinued Use CL-4700
QC CL-4700
SALE PRICE: $1049.00
QC CL-6400
SALE PRICE: $1,469.00
Classic Line qc1500 qc2250 qc3100 qc4500 qc3100 qc3100
Square Ft. Up To 760 Sq. Feet Up To 1,225 Sq. Feet Up To 1,600 Sq. Feet Up To 2,350 Sq. Feet Up To 2,350 Sq. Feet Up To 3,700 Sq. Feet
Common Locations Small Room or Bedrooms Large Room or Large Master Bedrooms Large Room, Hallway, Above Stairs Larger Room, Hallway, Above Stairs Larger Room, Hallway, Above Stairs Larger Room, Hallway, Above Stairs
Airflow CFM 1,527 2,285 3,190 4,534 High / 2,457 Low 4,757 6,418 / 3,226 Low
Sound Level 43 dB 45 dB 48 dB 47 dB 51 dB 50 dB
Energy Usage 136 Watts 249 Watts 320 Watts 498 High/249 Low Watts 533 High/491 Low Watts 658 High/329 Low Watts
Wiring Options Hardwire To Timer, Plug-In, Remote Hardwire To Timer and switch, Plug-In Hardwire To Timer and switch, Plug-In Hardwire To Timer and switch, Plug-In Hardwire To Timer and switch, Plug-In Hardwire To Timer and switch, Plug-In
Attic Venting 2 Sq. Feet 3 Sq. Feet 4.25 Sq. Feet 6 Sq. Feet 6.2 Sq. Feet 8.5 Sq. Feet
Multi-Speed 1 Speed 2 Speed Capable 2 Speed Capable 4 Speed Capable 2 Speed Capable 4 Speed Capable
Rough Opening 14.25 x 14.25 14.25 x 18.25 14.25 x 22.25 14.25 x 36.25 14.25 x 30.25 14.25 x 36.25
Grille Dim. 16 x 16 16 x 20 16 x 24 16 x 38 16 x 32 16 x 38


All of the "Classic Line" fans (except for the QC CL-1500) have the optional capability of having the motors wired for two speeds. For two speed operation, your installer would need to simply remove the included 8' power cord and run a third wire from the fan motor to the 3-way wall switch (QC-IT-30045) and timer (QC-IT-30070). When you run the 3-wire romex wire to the fan. one wire is high speed, one is low speed, and the other is ground. If using a remote system or standard on/off wall switch, the fan will work perfectly as a single speed fan (as set at the factory) at high speed. You can not use the two speed option if you want to use a remote control.

Consult with your electrician about wiring this 2 speed option to a 3 way switch. This 2 speed option would actually make any of the dual motor QC-4500 and QC-6400 fans 4 speed capable because these fan systems have two motors. Remember that the aforementioned fans out of the box will operate at their normal full (single) speed with no additional setup needed. We mention this 2 speed option for those that would like to take advantage of this useful, but optional feature.

Energy Saver Line With AC/DC Motors
QC ES-1500
SALE PRICE: $769.00
QC ES-2250
SALE PRICE: $989.00
QC ES-3100
SALE PRICE: $1,259.00
QC ES-4700
SALE PRICE: $1,439.00
QC ES-6400
SALE PRICE: $2,225.00
Energy Saver Line QC ES-1250 QC ES-1700 QC ES-2000 QC ES-2850 QC ES-5400
Square Ft. Up To 760 Sq. Feet Up To 1,225 Sq. Feet Up To 1,600 Sq. Feet Up To 2,350 Sq. Feet Up To 3,700 Sq. Feet
Common Locations Small Room or Bedrooms Medium Room or Large Master Bedrooms Large Room, Hallway, Above Stairs Larger Room, Hallway, Above Stairs Larger Room, Hallway, Above Stairs
Max Airflow 1468 CFM 2225 CFM 3103 CFM 4427 CFM High 2,050 CFM Low Speed 6,328 CFM High 2,860 CFM Low Speed
Sound Level 43 dB 45 dB 48 dB 51 dB 50 dB
Energy Usage 61 Watts 117 Watts 264 Watts 494 Watts / 64 Watts Low 527 Watts High / 179 Watts Low
Wiring Options Hardwire To Timer and Switch, Plug-In Hardwire To Timer and Switch, Plug-In Hardwire To Timer and Switch, Plug-In Hardwire To Timer and Switch, Plug-In Hardwire To Timer and Switch, Plug-In
Attic Venting 1.9 Sq. Feet 3.0 Sq. Feet 4.1 Sq. Feet 5.9 Sq. Feet 8.4 Sq. Feet
Speed 1 Speed 1 Speed 1 Speed 2 Speed 2 Speed
Rough Opening 14.25 x 14.25 14.25 x 18.25 14.25 x 22.25 14.25 x 30.25 14.25 x 36.25
Grille Dimensions 16 x 16 16 x 20 16 x 24 16 x 32 16 x 38



attic vent chart