A Trendy Home View Cart A Trendy Home Facebook A Trendy Home Twitter A Trendy Home Pinterest A Trendy Home Pinterest A Trendy Home Facebook A Trendy Home Twitter
Home  >>  Heaters, Air Conditioners, Fans  >>  QuietCool Whole House Fans  >>  QuietCool Whole House Fan System

QuietCool Whole House Fan System

QuietCool QC CL-4700 Whole House Fan
The QC CL-4700 Whole House Fan from QuietCool features a 2 Speed Motor that produces 4,757 CFM High and 3,586 CFM Low Speed. This fan from A Trendy Home is the latest powerful single fan in the Classic Line from QuietCool and normally ships the same business day from the factory. Full of quiet cooling power, the QC CL-4700 is one of the most popular single fans in the QuietCool arsenal for whole ...
List Price: $1,130.00
Our Sale Price: $1,019.00
More Info
QuietCool Classic Whole House Fans
QuietCool ES Whole House Fans
QuietCool Speciality Line: Garage Fans, Gable Fan, Roof Fans
 Whole House Fan Switch, Remote, Parts, Timer, Cover, Accessories
Cool Your Home, Reduce Your Air Conditioning Bill & Save Money by installing a QuietCool whole house fan. For over 10 years we have been supplying homeowners with QuietCool brand products. Call us for expert ordering assistance.

ORDER WITH CONFIDENCE - Buying from a factory authorized distributor ensures that you will receive all manufacture warranty and the lowest dealer pricing! We Have Been Selling QuietCools Since Day One!

Installer or Contractor Pricing Available. Call

OVER 75,000 FANS SOLD IN THE UNITED STATES!

The patented QuietCool system by QC Manufacturing Inc., is a combination of large fans that are installed in the attic. The QC Fans hang from the attic rafters and connect to a ceiling grille via insulated ducting.

ALL OF OUR DUCTED FANS COME WITH A GRAVITY DAMPER SYSTEM TO INSULATE THE CEILING OPENING

low price guarantee

whole house fan rating
-Click To Enlarge-
pdf document


The fans quietly suck cool outside air into your home, creating a cool breeze. The hot attic air is pushed out through your home's existing attic vents.

Customer Review

I installed your 4500 cfm, QC-4500B (aka: Quiet Giant) about 3 years ago and I have been wanting to send you guys a huge love letter ever since.

The quietness of this fan allows me to run it any time and as long as I want. It has transformed my ranch-style house...with the T-shaped halls...that didn't pass air even when the outside winds were blowing at 25mph...from a summer hot-box to an aerated, cool, delightful living space.

I am surprised how very often I pop it on, even if only for a few minutes, to clear the air in a room or in all the rooms.

Being able to move out stagnant air is something I've wanted for years and it was my lucky day when I spotted your website.

If they make me governor someday, I guarantee that this fan will be MANDATORY in ALL new home construction! Ha!

But seriously folks, especially in a hot, dry, low humidity area such as Denver, these wonderful fans would save people a fortune in AC bills.

THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU and THANK YOU AGAIN QC Manufacturing Inc. !!! Walter F.


QuietCool fans are certified to the California Energy Commission and have an "Gravity Damper" that creates a positive seal to isolate the attic air from the indoor air in cold weather climates!

NO ATTIC SPACE? NO PROBLEM!

If you cannot use an attic installed whole house fan due to little or no attic space, checkout our QuietCool Roof Fans - Three Models Available For Flat Roofs, Roofs With No Attic or Limited Attic Space (less than 24" high), Parapet Roofs and Commercial Applications.

PROVIDES COOLING 3 DIFFERENT WAYS

  • The fans draw cooler outside air in through your open windows which lowers the room temperature by as much as 10 to 20 degrees F. Your open windows serve as intake “vents” which allow you to control the air flow by selecting how many or which windows you open.
  • Moving air, blowing through the whole house cools the occupants. The cooling breeze can lower the skin temperature by 5 to 10 degrees F.
  • The cooler air, after passing through the living space, is forced into the attic which pushes the hot attic air out through the attic vents. This can lower the attic air temperature by as much as 40 degrees F.

    QuietCool fans are amazingly quiet and efficient! They are 100% made in the USA and come with a 10-year manufacturer warranty.

    WHAT ARE WHOLE HOUSE FANS?

    Whole house fans are a simple method of cooling your house. This method of whole house cooling has been around for years, however traditional fans can be very noisy. Not so with the these fans. Our fans are less than 0.4 sones each!

    The attic can reach temperatures in excess of 150 degrees in the summer and that air, if allowed to remain undisturbed, will radiate heat down through the insulation to heat the living space. That is the main reason that a home without a whole house fan remains uncomfortably warm during summer evenings and the upper floor of a multi-floor house is always warmer.

    One or more QuietCool’s can be used to ventilate your home at any time of the year.

    WHEN TO RUN YOUR FANS

    Any time during the day that it feels cooler outside than inside your home the system will work effectively. In the summer, this normally happens in the late afternoon to early evening, through the next morning.

    We recommend you start by cooling the area (by opening a window) where you are going to be spending the most time for the next few hours.

    In other words, create the coolest breeze where you are going to be. For example, in most family situations, the early evening is spent in the kitchen / family room area. Assuming this to be true, this is where you would start.

    VERY IMPORTANT! OPEN A WINDOW OR DOOR PRIOR TO TURNING ON YOUR SYSTEM (It may pull ashes from the fireplace)

    WHERE TO START

    Begin by opening a window or two in the area you are going to be spending your time and turn on all of your QuietCool’s at once, for maximum cooling. The cooler air outside will immediately begin to create a breeze. Opening windows too wide or opening too many windows will lessen the cooling breeze you feel.

    The breeze will flow through your home and make its way to each QuietCool you have in operation. This breeze will be felt in the entire path, and will begin to cool the whole house. At the same time, the air brought in, will be sent to the attic.

    This action will flush the very hot air out through the venting. When hot air is allowed to remain in your attic, it keeps your home hot even though it has cooled down outside. Removing the hot air and replacing it with cool air allows your home to cool off dramatically.

    As it gets later in the evening, and even cooler outside, you can begin to open windows in other rooms of your home.

    At bedtime, you should close all the windows except in the occupied bedrooms. This will provide each room with a cool breeze as long as desired. If you have a QuietCool installed in each bedroom as recommended, you can enjoy the breeze and your privacy with your door closed.

    INDOOR AIR QUALITY

    We should also stress the values of ventilating your home on a regular basis. Many private and government studies show that the air inside our homes is more polluted than the air outside. This is generally true even in industrial cities. Your fan system can greatly reduce this problem by bringing in fresh air and exhausting stale polluted air all year round.

    In cooler months, you can provide sufficient ventilation by operating one QC-1500 daily for short periods of time without significantly cooling your home. The system can also be helpful in eliminating pet odors, burned food smells and smoke.

    CAN I INSTALL THE QUIETCOOL SYSTEM IF I LIVE IN COLD WINTER CLIMATE?

    The Classic Line of fans come with a gravity damper system that is installed in the ducting to seal the fan when it's not in use. A magnetic cover (sold separately) can also be used to cover the ceiling grill.

    IS IT TRULY NECESSARY TO HAVE THE FANS EACH INSTALLED WITH THEIR OWN INDIVIDUAL OUTLET, PER THE INSTALL INSTRUCTIONS?

    A circuit is a string of outlets on one circuit breaker that is located at the electrical panel. When we suggest each fan to have its own outlet it is usually on the same common circuit, which is usually an existing circuit in the general area. Each outlet is then controlled by a switch. If you don't want to have the ability to control each fan separately, than you can share two fans on each outlet. There is another way of wiring two fans on one outlet but it is confusing to people who aren't experienced in electricity, so we haven't mentioned that option. Normally you do not need to run a new circuit from the breaker box (electrical panel) to the attic location, but simply sharing an existing circuit. Our fans use small amounts of electricity.

    HELPFUL TIPS
    • Don't run the fans when it is hotter outside than inside!


    • Cool your house in the morning and close all windows during mid-day.


    • Open only a few windows at first when it's starting to cool down in the afternoon or evening then later open more windows.


    • Close window shades and blinds during mid day to prevent sun from heating up home as quickly.


    • In the wintertime you may turn on the your fan system at the warmest time of the day and bring in fresh warmer air to heat the home.


    • Traditional whole-house fans leave a large opening in your ceiling that is not sealed! In cold weather climates warm air from inside your house will rise up into your attic and make contact with cold surfaces which can cause condensation.


    • The ducted Classic Line of fans seal automatically with an internal damper system to prevent warm air from entering your attic!



    PROPER FAN SIZE FOR YOUR HOME

    Upon viewing our sizing chart, we recommend that you select (at a minimum), the "Better" level of airflow. The "Fair" category listed on the chart is often what other brands are recommending. The "Fair" level may not produce the cooling and ventilation results that homeowners are looking to achieve. To properly size your whole-house fan system, it is recommended that you multiply the square footage of your living space by 2-3. For example: a 2500 square-foot house requires a combination of fans that produce approximately 7,500 CFM (2,500 x 3). Just to give you an idea, (2) QC-1500 in the bedrooms and (1) QC-4500 in a central location would be a possible configuration for this example. Other QC products can be combined to get the proper amount of CFM based on the size and layout of your home.

    *The QC-1500 series can also be installed on a vertical wall instead of a ceiling, if there is adjacent attic space and sufficient attic venting.

    HOW DO I CALCULATE MY EXISTING NET FREE ATTIC VENTING?

    There are many different types of attic roof vents used in home construction. Common venting types are: Turbine or Whirlybird Vents, Static Vents, Flat Vents, Dormer Vents, Ridge Vents and Gable Vents.

    Calculating your "Net Free" Venting:

    A. First Measure Your Vents

    Take total inches of the length x width of each vent to determine a rough estimate of your existing roof and attic venting.

    B. Covert The Inches To Square Feet.

    Use the total inches of your vents and convert to square feet by dividing that number by 144.

    C. Are your vents screened? If you have screening material over your vents, then you need to cut the total area in half, since screens can reduce airflow by 50%.

    Take the gross total area of venting, multiply that number by .50 to get your total "Net Free" Venting.

    Here Is A Better Example:

    A single 12" x 12" gable vent would be 144 square inches of venting. To convert to square feet, simply divide by 144 (since there are 144 sq. inches in one square foot). 144 divided by 144 = 1 sq. ft. If the vent is screened the cut that measurement in half which you give us 1/2 sq foot of net free venting.

    This information is designed to be used only as a general guide. Consult with a licensed contractor or roofer to determine your net free venting requirements.

    ARE YOUR FANS ENERGY SAVER RATED?

    Energy Star Ratings do not exist for whole house fans. The US Dept. of Energy has never created an Energy Star category for whole house fans, however whole-house fans typically use about 1/10th the power of air conditioners, and they are relatively inexpensive to install. They can help you cut your air conditioning bill substantially.

    DO QC FANS MEET THE CALIFORNIA GREEN BUILDING CODE REQUIREMENTS?

    Our fans meet the requirements of the code. Section 4.507.1 of the Code applies to Whole House Exhaust Fans and requires openings in the ceilings to be insulated to a minimum value of R-4.2 with louvers or dampers. An interpretation of the code for ducted fans requires that the ducts be insulated to a value of R-4.2 which all of our ducted fans meet.

    There is wording in the code that the sone ratings must be at or below 1 sone, but that part of the code does not apply to whole-house fans; that is for bathroom exhaust and ventilation fans. Although most of our fans are well below a 1 sone sound level, we chose to rate the sound level of our fans in decibels rather than sones which is traditional with the industry.

    WHAT DOES THE TERM FAN CFM MEAN?

    A Fan's CFM (Cubic Feet Per Minute) is a measurement that indicates how much volume in cubic feet passes by a stationary point in one minute.

    How Many QC Fans Do I Need For My Home's Sq. Footage?

    ventilation fan size chart
    Click To Enlarge




    ~CLICK ON THE IMAGE ABOVE TO START THE VIDEO PLAYER~


    PRODUCT CHARTS, INSTRUCTIONS AND BROCHURES:

    HOW TO ORDER:
    • Determine how many fans you need based on your home's square footage (see above sizing chart).

    • Select a package (include your timers/switches and remote as needed) and order online or call us during business hours at 1-877-667-4663 to order by phone. The fans will be shipped directly to you via UPS. We will email you with the tracking number usually within 2-4 business days. 

    • Contact us via Email to help find an installer We may be able to refer you to an electrician that is familiar with our fans. If we don't have a referral in your area, you can contact your local electrician or contractor. If your electrician can install a ceiling fan, they should have no problem installing a QuietCool System.

      The installation cost is separate from the cost of the fans and should be paid to your installer directly at the time of installation. Installers are generally not available to come to your home for a site survey prior to ordering.


    • OPTIONAL FINANCING PROGRAM

      PayPal Financing With Bill Me Later Do you want to buy now and pay later? We thought so. Now you can choose Bill Me Later ® to fund your Pay Pal purchases.

      When you make a purchase with PayPal:

      1. Add Your Items To The Cart.
      2. Choose To Checkout with Paypal and use the Bill Me Later option.
      3. Answer 2 quick questions & accept the terms
      4. Look for your Bill Me Later statement via email

      The QuietCool Whole-House Fans are the Quietest and Most Energy Efficient Fans available. Don't settle for good or better fans, when you can have the Best, "QuietCool Fans!" View Our 19 Different Models Above...


    Systems with remotes conrols included are also available, models: QC HV-1000 RC, QC 1500 HRC, QC 2250 BRC, QC 3100 ARC, QC 4500 BRC, QC ES-1250 RC, QC ES-1700 RC, QC ES-2000 RC, QC ES-2850 RC,

  • Related Items In This Category...
    QuietCool Whole House Fan System | Tamarack Whole House Fan