top bar

Frequently Asked Questions for Whole House Fan Systems

Q: How long does it take to complete an installation?

A: Most jobs are completed in approximately 4 hours. In certain circumstances, such as inclement weather, installation may take up to two days, although that is very uncommon.

Q: How can whole house fans be used as a substitute for air conditioning?

A: From working in this industry since the early 90's, I have heard the same account from hundreds of people prior to a fan installation. It usually goes something like this, "In the evening I walk outside and find it's cool and comfortable, but it's still incredibly hot in my home." In the evenings, the outside air in Denver is cool and comfortable 99% of the summer. Imagine replacing the hot, stagnant air trapped in your home and attic with this cool air from outside. Whole house fans are designed specifically to do this in areas like Denver where relative humidity is low and elevations are high. A/C is designed for areas with higher humidity. Whole house fans do the job of cooling your home and keeping it comfortable for around 10 times less electricity than running A/C, which means they cost 10 times less to run. A properly sized whole house fan system cools 10 times faster than A/C can.

Q: How many square feet of venting do I have in my house?

A: A typical home has two square feet of total net free attic ventilation in place, but each home is different. Contact us and we will gladly give you a free estimate on your home. Our expert advice is always free.

Q: How many windows or doors do I need to open for the fan to work correctly?

A: Basically, you need to match the cumulative size of open windows and doors to the size of the intake fan shutter.
The fan will not work properly if there are not enough openings from which to draw air. The more openings to the outdoors, the more distributed the breeze in the home will be. With a whole house fan, it is possible to direct the breeze through certain rooms or from the basement. To do this, you simply only open the windows in the rooms through which you want to draw cool outside air.

Q: How are the vents installed?

A: In most whole house fan system installations, oversize roof vents are installed to create the total amount of net free ventilation that is required for the system to operate as the manufacturers intended. These vents are installed underneath waterproof materials and are completely
weatherproof. See our photos for examples. If you have a concrete tile or exotic roof material, we evaluate other options for ventilation first, and can suggest several roofers who can work confidently on these roofs.

Q: What type of fans are used?

A: We sell, install and service two different styles of Whole House Fans: traditional whole house fans by Triangle Engineering, and ducted whole house fans by QuietCool. Both of these whole house fans cool the home in the same manner by pulling cool air up through the home and pushing superheated air out of the attic. The difference is in the configuration of the fan. The traditional fan is located against the ceiling, while the QuietCool fan is suspended from the roof framing in the attic. Both Triangle and QuietCool fans are made in the USA. Triangle fans are constructed from heavy gauge steel with welded fittings. Cheaper store-bought fans use bolted fittings which loosen over time and create excess noise. Our Triangle fans are rubber mounted with sealed fan shaft bearings for a whisper-quiet operation. They have four,deep pitch blades. The fans also have a patented "Auto Belt Tensioning" system which eliminates the need for manual belt adjusting. They have a two-speed, belt-driven, 1/3 or 1/2 horsepower motor. These Triangle fans are the highest grade available on the market which move the most amount of air. QuietCool fans use superior motors and aluminum blades to create a fan that is very quiet, yet still moves a remarkable amount of air. Look at some job-site photos for examples, or see the table for technical details.

Q: What do the finished products look like?

A: Whole house fans are located in the attic and use a damper system to keep air from moving from the home space to the attic when the fan is not in use. Traditional whole house fans use an aluminum ceiling shutter with moving louvers. These shutters are white to match ceilings, and their size is roughly 30" x 30", 36" x 36" or 42" x 42" (shutters are matched to the size of the whole house fan.) QuietCool fans are installed with a grille in the ceiling. The moving dampers for a QC fan are built into the fan assembly and are hidden from view. Like traditional whole house fans, the size of a QC grill is dependent on the size of the fan. In most whole house fan installations, aluminum roof vents are installed near the peak of the roof and on the back side of the house to allow superheated air to be exhausted from the attic space. The controls for whole house fans are installed in the wall of your home, and usually match your current switches. Please see our photo gallery for examples, and note that we have a showroom so that you can see, hear and feel our finished products in action. Contact us to schedule an appointment to visit our showroom.

Q: Are the fans noisy?


A: No. We use only the highest grade fan equipment that is available. This includes shutters, fans and motors. Also, we specifically engineer the framework of the fan so that the finished product is extremely quiet as well as incredibly strong.

Q: Will the fan pull air from the basement of my home?


A: Absolutely. In fact, this is one of the most highly recommended ways to cool your home. Basements are naturally
cool in summer. By opening only the basement windows with the fan running, cool air will flow up the stairs and into your living floors.

Q: What kind of warranty is included with the fan?

A: Triangle fans carry a 10 year warranty on the fan, a lifetime warranty on the vents, and a 1 year warranty on the motor. QuietCool Trident Pro fans carry a 15 year bumper-to-bumper warranty. All CHC labor is warranteed for 3 years. Customer satisfaction is our first priority. Although problems are extremely rare, we will do whatever is necessary to make sure the customer is happy with the finished product.

Q: Do you provide follow up service with the fans if necessary?

A: Yes, although it is very rare that fans need follow up service because the bearings in the fans and motors are sealed and the units are designed to be completely self-sufficient. But we are happy to come back to your home in the event that you have any lingering concerns.

Q: How much do the fans cost to run?

A: Around 4-7 cents per hour to run, depending on the fan that is installed, where you live, and which Xcel tier you are in. Also, the fans only need to operate a few hours a day in the summer to cool the entire home and allow you a great night's sleep.

Q: Can the system be put on an automatic timer to turn the fan on?

A: Technically, yes, but we do not recommend this. In order for the fan to work properly it needs open windows or doors in the home to draw air from, therefore it is necessary to create openings on the home before starting the fan.

Q: How quickly do whole house fans cool the home?

A: Our goal is to create a whole house fan system that provides a complete air change in under a three minutes. With this much airflow, cooling will be felt immediately once the fan is started. Since the cooling happens immediately, there is really no reason to run the fan when you aren't home. Please note that this results is best achieved with a whole house fan system that includes the proper ventilation in the attic.

Q: What if I want to cool my attic space only?

A: In the case that you want to cool the attic space only, contact us and we can talk about installing a Power Vent/Attic Fan. See our page for Attic Fans.

Q: How much air do the fans move?

A: On high speed, the 30" whole house fan moves 7,600 cubic feet per minute (cfm). The 36" moves 9,700 cfm on high, and a 42" fan moves 12,600 cfm on high. QuietCool offers fans that move between 1,500 and 6,500 cfm. To know how much air is moved by a given QC fan, simply look at the name of the fan. A QC 3.3 moves 3300 cfm.

Q: What are my payment options?

A: We accept credit cards, checks and cash.

Q: Why do many of our customers get fans installed after they have already invested in air conditioning?

A: Extremely hot air gets trapped in your attic during hot summer days. Through the late afternoon and evening, air conditioning has the chore of battling this heat that is radiating into the home. Because hot air within the home rises to the highest levels and cool air sinks to the lowest levels, air conditioning is fighting a losing battle. Customers relying on A/C alone find that they end up with an extremely hot upper level and extremely cold lower level with an A/C unit that is running continuously (at a $1 per hour!) and susceptible to freezing up. A whole house fan is designed specifically for areas like Denver with relatively low humidity and cooler evenings. A whole house fan is mounted in the attic, which draws fresh and cool outside air in through open doors and windows while forcing the hottest indoor / attic air out of the vents in the attic. This cycle quickly creates comfortable indoor environment, and most importantly, the fan steadily draws heat out of the structure itself so you start the next day with a cool house, delaying or eliminating the need to run air conditioning.

Q: Can I speak to some of your satisfied customers?

A: Yes. Contact us and we'll gladly get you in touch with them. Also, make sure to see the testimonials page on this website. Another place to see testimonials is on www.angieslist.com, www.yelp.com, and also on www.google.com. Also, CHC has a showroom for our potential customers to see, hear and feel our finished product. Contact us if you're interested in scheduling an appointment to visit our showroom.

Q: Can I see some technical specifications on fan size, cfm, and rpm?

A: Yes. Look at the following table. The simplest way to compare any fan is by cfm (which is a measurement of airflow in Cubic Feet per Minute).

Q: What is the difference between an attic fan and a whole house fan?

A: Though the terminology can be confusing, Attic Fans and Whole House Fans are very different from one-another. Attic Fans are smaller fans mounted on the roof or gable of your home. They work on a thermostat and help to flush out the hot air trapped in the attic but do not pull air through the living area of the home. These systems are ideal for homes that have existing cooling sytems which need help in cooling the home, or for homes that stay naturally cool with the exception of days where the temperature reaches 100+. Whole house fans are located in the ceiling of the home and pull air through the whole house (from the basement to the attic). These fans move anywhere from 3 to 7 times the amount of air as an attic fan, and have many other benefits as outlined in the See How The Fan Works section of this website.

Q: Is CHC insured?

A: Yes. We have a full liability insurance policy plus a workman's comp policy.

Q: Are the whole house fan motors guarded against overheating?

A: Each of our UL listed motors comes with a thermal interrupt, so that in the rare case that the motor might overheat it will automatically shut off. Also, the motors are constructed with sealed ball bearings. Because of this, the motors do not require regular oiling and are maintenance free.

Q: What sets CHC apart from its competitors?

A: Colorado Home Cooling takes the time to assure that the quality of work is always at its highest level. We spend a considerable amount of time training our technicians to make sure you are receiving the most current and up to date installation available. Our products are state of the art and our installation process is the best available in the industry.  There are cheaper fans out there, and businesses that will cut corners to save time and materials under the guise of saving the customer money.  Colorado Home Cooling does not sacrifice our quality to cut corners in order to offer a lower price. We value our reputation and you will value our professionalism and level of service.  In service as in life, you get what you pay for, and our goal is to give you a product that you can enjoy for decades.

bottom nav

303-986-5764