a whole house fan and home ventilation system with a solar attic fan, gable fan, garage fan and house fan

Whole house fans and ventilation


Whole house fans and home ventilation systems create a cool, comfortable and healthy indoor environment for a fraction of the cost of air conditioning. CHCD is Colorado's top-rated Triangle and QuietCool whole house fan installer, offering unbiased information about all your house fan and attic ventilation options.

Whole House Fans

The first step in creating the perfect whole house fan system for your home is to choose the correctly sized fan. We recommend installing a fan that provides 3 CFM (cubic feet per minute) for every square foot above ground in your home. Providing adequate airflow allows your house fan to achieve a complete air exchange every 3-4 minutes, creating a cool, comfortable, and healthy indoor environment. Whole house fans are an excellent AC alternative, but can also cut your AC usage by up to 90% when used in conjunction with your home's AC unit!

Colorado Home Cooling & Daylighting proudly offers Whole House Fans from QuietCool and Triangle!  

QuietCool whole house fans logo
Triangle whole house fans logo
a whole house fan mounted in an attic


a solar attic gable fan expelling hot air from home

Attic ventilation is a key component of every whole house fan system, and manufacturers require it as part of the installation.

The most efficient whole house fan systems match the ventilation in the attic to the airflow from the fan. We recommend a minimum of 1 square foot (144 sq. in.) of net free air (sfnf) ventilation for every 1,000 cfm of air moved by the fan. Most homes need additional attic ventilation to complete the installation of a whole house fan.


We install all-metal oversized (144 sq in of net free) attic fans and vents to complete your house fan system with a variety of makes and models to suit your home. For homes with tile or metal roofs, we will install venting in the existing soffits or gables of your home. From solar attic fans to gable vents and more, we have an attic ventilation solution for your home!

Solar Powered

Choosing one solar power attic fan over multiple passive vents can save you $100s on your installation AND earn you a 26% Federal Tax Credit! 

Why Choose chcd

Whole House Fan installation

Our whole house fan installation process saves you time and money, without any headaches or surprises. Our installers arrive at your home on-time, with everything necessary to complete your installation in a single visit!

Since 2003, we've installed thousands of whole house fans systems and counting — Read our reviews!

House Fan
Repair and service

All our house fans come with a 15-year factory warranty. If anything goes wrong, give us a call and we'll send a tech right away! We repair and service any whole house or attic fan with a rigorous 15-point inspection and cleaning to extend the life of your system.


Contact Us today to schedule a service or repair.

learn more about the best whole house fans and attic ventilation  for your home — and get a free quote!

How To Use your Whole House Fan

When the outside air temperature is cooler than inside your home or attic, do the following:

1 Open a few windows 4-6 inches

2 Turn on your whole house fan using the switch, portable remote, or timer

3 Feel a nice, cool breeze as air passes through your home, replacing all the stale, trapped air 

4 Experience a complete air exchange in your home in just 3-4 minutes

5 Save money as warm air is expelled from your attic, keeping your home comfortable for hours and cutting cooling-related energy use by up to 90%

Did You Know: While some choose to benefit from running their whole house fan system during cooler times in the morning and evening, because of Colorado's cool, dry climate you can use your whole house fan system even in the peak of the day almost year-round! A whole house fan and attic ventilation can even increase the efficiency of your A/C or evaporative cooling system, too!

whole house fans cooling air inside home

Whole House Fan Reviews

air ventilation through a clean white kitchen

"We have used our A/C 80-90% less often than before installing our whole house fan. It's like having the A/C on! Wish we would have done this years ago!"  

— Mike, Highlands Ranch

air ventilation through a clean white living room

"As an architect designing zero energy homes, I expect the best service and components for our projects. Whole House fans are all you need for cooling in a front range home!" 

— Brian, Boulder

Benefits of Home ventilation

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Protect Your Home

At the peak of the summer season, attic temperatures can soar to 160 degrees and cause undue wear and tear on your roof and shingles. A whole house fan system removes hot, stagnant air from every room and surface of your home to help prevent costly repairs.

More Comfort and Savings

A whole house fan system is the most cost-effective way to cool your home, creating a comfortable environment in every room of your home for pennies an hour. It can even make your air conditioning unit more efficient by slashing A/C related energy use by up to 90%!

Clean, Healthy Indoor Air

The EPA estimates indoor air is 2-5 times more poluted than outdoor air, even in major metropolitan areas. A whole house fan system removes allergens and other polutants from inside your home in a matter of minutes creating a clean, healthy environment.

The Greener Alternative

Whole house fan systems are the most energy-efficient way to create a clean, comfortable home environment. With solar-powered options, automatic and manual control settings, your whole house fan will put your home on track to become net-zero.

A Life Long Solution

Unlike air conditioners and evaporative coolers that need regular maintenance and repairs, whole house fans are built to last a lifetime. We stand behind our products with a one-year warranty in additon to the standard 15-year manufacturer warranty on most products. If something does go wrong, our robust service and repair checklist will have any whole house fan system up and running in no time.

Additional Notes:

  • Please call, email or fill out the online form so that we can create an initial estimate – we pride ourselves on providing an accurate and comprehensive initial estimate that is customized for your specific home and cooling needs.

  • By gathering information about your home before we arrive on-site and first developing an initial estimate from our office, we are able to save you time and money.

  • Our pricing includes all the framing, drywall, roof and electrical work required to complete the fan installation according to the fan, shutter, and vent manufacturers’ specifications.

  • For homes with high and vaulted ceilings, we recommend a fan that moves more than 3cfm/sf (as there is a greater volume of air in the home to be moved).

  • All of our whole house fans are installed with wall-mounted controls that include a timer and high/low switch.

  • Remote control options are available for all whole house fans – please inquire.

  • Oversize roof vents (each OS vent provides 1 sq foot of net free ventilation) and can be painted to match your roof color.

  • We have additional charges for installing vents on steep roofs (8:12 pitch and greater).

  • We can install Soffit Vents and Vertical Exhaust Shutters to provide ventilation for homes with metal or tile roofs.

  • We have additional charges for plaster walls, lead paint containment, high and sloped ceilings, and vertical installations.

  • Your final pricing will be given on-site prior to the start of work.  This final price will not increase, even if we encounter unforeseen issues during the installation of the fan system.

  • We stand by our work and provide a written warranty at the time of installation.

© 2021 by Colorado Home Cooling & Daylighting