Frequently Asked Questions

Trident Pro model uses an Energy-Efficient PSC motor, which offers above-average energy efficiency, while the Stealth Pro model uses an Ultra-Energy Efficient ECM motor which is extremely energy efficient.

Most people run their fans for 4-8 hours a day during the summer months. For a 500-watt fan, this would equate to about $.60 – $1.20 per day in California (energy rates at $.30 per kWh). This equates to about $18-$36 per month. QuietCool uses up-to 1/15th of the amount of energy an A/C unit uses. QuietCool fans have one of the fastest ROIs of any green energy product on the market today.

QuietCool is very quiet! Our largest fan size is rated at 54 decibels on high speed.

In order for the system to work properly, you will need intake. If the system is running with no windows open, it can strain or choke the motor. It can even pull ashes from the fireplace. We recommend 2-3 windows open between 4-6 inches.

We have a simple calculation to figure out how much venting you need for your system. For every 750 CFM in the system, you will need 1 SQFT of net free venting.

Example: A Trident Pro 2.5X has 2,490 CFM; to figure out how much venting you will need, you will need to divide 2,490/750 = 3.32 sq. ft.

The Professional series line of fans come with a 15-year motor warranty and controls included in the box. They are only available to purchase through Contractors, Dealers or Wholesalers. Also, the Stealth Pro model has up to 3-speed options.

The Classic series of fans come with a 10-year motor warranty and do not come with the controls. They are available online for purchase through our E-Commerce Partners.

Yes, we recommend to run them through the night in order to assist with keeping the home cool longer during the day.

  • Timer and Switch
  • Wireless RF Control Kit

You only need to clean the High Airflow Grille. The High Airflow Grille may collect dust over time. If you have a removable grille the middle piece pops right off. If you have a fixed grille you have to take the screws out with a screwdriver. We recommend cleaning your grille every 6 months. It is dishwasher safe or even take it outside and hose it off for easy cleaning. You can use a shop vac for fixed grilles.

No, as long as the system is sized properly and is installed at a slight 90-degree angle, the insulation will be fine. We use this technique to prevent any blown-in insulation from moving around. You can always buy a few pieces of batt insulation to put over the blown insulation.

Perhaps the most peaceful benefit of a QuietCool whole house fan is that there is very little noise. So not only do you get a constant, fresh cool breeze throughout your house, there is no annoying noise coming from a loud air conditioner unit outside or helicopter-like whole house fan in your hallway. This is especially noticeable in the evenings when things normally quiet down.

A frequent question among whole house fan customers is what controls are offered for their fan. There are many different options to control a whole house fan including wired and wireless controls.

The most reliable type of control is a speed switch and an electronic countdown timer. This allows the homeowners to control the speed of the fans while being able to set it on a timer. This is very convenient throughout the nighttime. You can literally set it and forget it. This is the most reliable method of controlling a fan without having any issues.

The drawbacks of a switch and timer are that you cannot control the whole house fan downstairs on a two-story house. If you are downstairs it makes it very annoying to have to go upstairs to control the fan.

Wi-Fi controls are the way of the future but there are many variables that will tell a customer if they are a good candidate. Wi-Fi controls allow you to control the fan from anywhere in your living space. You can control the speed and timer from it. It does require a smartphone or tablet to control your whole house fan.

The drawbacks to Wi-Fi are that each router is different for the setup. You can only set up the control on a 2.4 GHz network, not a 5GHZ network. Setting it up on a combined network (that is both 2.4 and 5 GHz) can cause homeowners to have to get back up into their attic to set it up again week after week. This can really frustrate homeowners but as long as you follow the instructions to set it up correctly and set it up with a compatible router, the control will operate as designed. If you’re not sure about the control then you can always call the manufacturer to get support.

Some customers try and use variable speed switches, ceiling fan remotes, and other types of switches. These aren’t recommended as some motors, such as ECM, will not work with a variable speed switch and ceiling fan remotes are either low voltage or operate similarly to a variable speed switch.

In 2013, California updated the Title 24 building codes to make whole-house fans a prescriptive requirement in all new homes in climate zones 8-14, which makes up about 80% of the state. They have studied and identified whole house fans as one of the top ways to cool the entire home in the most cost-effective way.

In fact, UCLA did a study in 2013 stating that whole-house fans can replace air conditioning completely in 10 of the 16 California climate zones. Further, the Department of Energy claims that whole-house fans are the most cost-effective way to cool your home.

When installing a whole house fan, builders must meet these three requirements: a system that supplies at least 1.5 CFM for every square foot of conditioned living space; a system that is listed on the CEC Appliance Efficiency Database; and an attic that has 1 square feet of net free vent area for every 750 CFM in the system.

One of the best-kept secrets about whole-house fans is help preventing sickness during the cold and flu season. During the colder months of the year, a typical homeowner shuts all of the windows and runs their closed-loop heater non-stop. If a family member gets sick, it typically spreads throughout the entire family. In many cases, family members will get a sickness multiple times through the flu season because of this.

By running a whole house fan for 5-10 minutes a day you can help flush out all of the germs and viruses in the home. It may not guarantee you won’t get sick, but it may help to prevent sickness from spreading throughout the whole family.

Size is very important to a whole house fan system. If a whole house fan system is not sized properly, meaning enough airflow, the system will not work effectively.

Airflow is measured in CFM, or Cubic Feet Per Minute. Here is the formula for proper sizing:

For a “good” system, 2 CFM per square foot of living space.
For a “better” system, 2.5 CFM per square foot of living space.
For the “best” system, 3 or more CFM per square foot of living space.

This math formula will work every time, for any size home, and as always the more airflow the better.

However, there are two other considerations that need to be taken into account when sizing a system.

The first consideration is the location. If the home is located in a coastal region where the climate is much cooler than a desert, for example, a “good” system will work great.

But in a desert climate, the best system would deliver the best results.

The second consideration is ceiling height. If the ceilings in the home are taller than 8 feet, be sure to size the system a little bit larger to account for the increased air volume inside of the home.

Remember, the sizing formulas are backed by the Department of Energy, PG&E, and the California Energy Commission.

If sized properly, the whole house fan system will result in a totally satisfied customer every time!