Whole House Fans

While other manufacturers often build their products from the same generic parts available to anyone, we make it a point to be uniquely better. To do that, we spent years researching and testing all types of fan motors. We ultimately found that the German engineered fans we use in our systems, significantly out performed any other whole house fan motor on the market.

We have found websites that claim to provide whole house fan reviews and/or whole house fan ratings; however, they are typically assoicated with the company that makes the whole house fan they are reviewing.

Comfort Cool Fans warrants the fan motor for 10 years from the original date of purchase against defects in material and workmanship. Comfort Cool Fans at its option, shall repair or replace the defective fan and/or motor. Labor and all other components including ductwork, damper, actuator, remote controls and switches have a one year warranty. Please retain the dated sales receipt as evidence of the date of purchase. You will need it for any warranty service. 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 product.

We recommend customers consider purchasing the largest whole house fan that their home has the attic ventilation for. The larger the system the quicker the home will cool down. In order to determine how much attic ventilation is required for each CentricAir system, see Required Attic Venting on the Specification section of each product page.

A whole house fan is a primary cooling device that can significantly reduce or even eliminate the need for A/C. Attic Fans are smaller fans mounted on the roof or gable of your home. They work on a thermostat and help hot airscape from the attic but have no direct impact on your living environment.

Technically, yes, but we do not recommend this. In order for the fan to work properly it needs as much area for intake as it uses for exhaust, therefore, it is necessary to be present when starting the home cooling system. On average, most homes get a complete air change in just a few minutes, so the 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.

The registers are white to match the ceilings and the rough opening is approximately 14″ × 22″, or 22″ × 22″ depending on which size fan is appropriate for your home. The switches are white to most-closely match your current switches.

Opening two or more windows half way or more is recommended. Basically you should make it easy for the fan to pull in air. As for which windows to open, for general cooling you want to open windows far away from the fan to provide airflow to the whole house. Or, you can open windows in the areas you want cooled. For example, if you want bedrooms to be the coolest then open windows in those rooms.

A typical home has between two and six square feet of total attic ventilation / roof ventilation, but each home is different. Contact us and we will gladly explain how you can determine how many feet of attic ventilation you have. Our expert advice is always free.

From working in this industry since the late 1980’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.” Imagine replacing the hot, stagnant air that gets trapped in your home and attic with the cool air from outside. Whole house fans are designed specifically for this purpose in regions like Southern California, with relatively low humidity. In addition, whole house fans do the job of cooling your home and keeping it comfortable for around ten times less than running A/C.

Most whole house fans are installed in approximately 3 to 5 hours. In certain circumstances, installation may take up to 8 hours, although that is very uncommon.

As mentioned in a previous question, 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. Whole house fans are designed specifically for areas with low humidity and cool evenings. A whole house fan is mounted in the ceiling, which draws fresh and cool outside air in through open doors and windows while forcing the hot indoor and attic air out throught the roof vents. This cycle quickly creates a 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.

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On high speed, the 16″ whole house fan moves up to 2000 cubic feet per minute (cfm) and the 18″ moves up to 3000 cfm. If your home is 2000 square feet with 8′ ceilings, a 16″ fan will give you a complete air change in about 6 minutes. An 18″ fan will give you a complete air change in about 4 minutes. Another important thing to take into consideration when choosing a fan size is how strong a breeze is desired in your home; since that is a large part of the overall cooling factor.

Centric Air whole house fans are very quit. We use only the highest grade fans and motors available. We specifically engineer the system so that the finished product provides a quiet cool solution in addition to being incredibly strong.

Centric Air whole house fans that are installed by Comfort Cool Fans cost as little as $0.02 to $0.04 per hour to operate, depending on where you live. Also, whole house 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.

Each of our Whole House Fans has a listed requirement for attic venting. See the Specification tab for the product you are interested in.