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Are Whole House Fans Worth It? [Everything You Need To Know]

Are you confused and wondering whether you should buy a whole house fan system or an AC. It may be because you live somewhere where the weather keeps fluctuating. We get that it could be confusing for you quite a bit.

But today, we’ll answer this question for you!

Are whole house fans worth it?

To simply answer that, it depends on the person. It is more environmentally friendly and is more reliable. Also, it has a very good cooling mechanism that can easily handle medium to extreme heat. Lastly, this system can also be very forgiving for your wallet in terms of bills and repairs.

This was a brief summary of a very descriptive article you’ll find if you scroll down. So keep on reading for more!

Let’s get right into it, shall we?

Whole House Fan: How It Works?

A whole house fan is a system where a fan pulls out air from the house. It mainly channels air through the vents and shoots it outside using another fan. This system works best when the windows are open in the house. 

Fresh air comes in and pushes the hot air out and the hot air goes out of the roof. This method easily and effectively cools down the whole house. Even from the heat generated from sunlight and trapped inside the house structure. 

This is one of the reliable ways to keep your house cool in the summer. It’s also one of the least harmful to the environment because of this system. This might even help with your heated walls when the gas fireplace is on.

This system does not emit any harmful gas into the atmosphere. Needless to say, it’s way more cost-efficient than any other system.

Installation Costs 

Now that we got an idea of how a whole house fan functions. It’s time we talk about something even more important, the costs of installing and purchasing. Like any other home appliance, this fan system also needs to be installed before it can be used. 

Things with lots of components and vents that go through the whole house will need some labor. 

In addition to what it costs ranging from $570-$1280 on average. It usually takes $500 to $2000 for you to install a whole house fan. The cost varies from the makes and models of the fan. 

This number will increase if you get some outside help. Figuring out the cost for installing whole-house fans can be similar to the cost of furnishing a house.

Maintenance for a Whole-House Fan

Maintaining Whole-house fans is very minimal, but there are a few things you should do to keep things running smoothly for years. The majority of the work consists of cleaning, rather than mechanical maintenance or part replacement.

If you clean the system once a year, this will provide reliable service for a long period. But if you live in an area where the fan is used all year, you need more cleaning. In this case, you’ve to clean it more often.

You can clean much of the debris of your fan by simply dusting it with a wet brush. Dust can build up in the motor, which could cause it to overheat, which can lead to serious problems. 

When cleaning, make sure the fan’s power is turned off so you don’t hurt yourself on a rotating fan blade. 

Certain components, such as driving belts, may need to be replaced in some cases. Quality belts ensure that the fan rotates properly and offers great circulation.

Are Whole House Fans Worth it? Pros and Cons

Not everything is flawless, everything has its good and bad sides. To actually assess if whole house fans are worth it, we’ll go through some of its advantages and disadvantages.

This segment will help you decide if you actually want it.


Using whole house fans definitely has some good sides. If you’re getting one for your house, you should know about these pros. We have discussed these down below

For those who can’t afford or don’t want AC, this can be their solution. It creates a cold breeze inside the house to cool it down. 

On the other hand, if you do have AC, it can help you reduce the bills. You could use the AC on the hottest days. And you could run the whole house fan on other days. This way you’d be able to save money on electricity bills. 

The regular cycling of fresh air brings a lot of health benefits. For example, as the air exits from the house, it carries away most of the germs and viruses from the air. It takes away any kind of hazardous gas or air molecules. 

The fan system also helps exhaust all the odor from the house.


We’re not saying whole house fans are perfect. It definitely comes along with a few disadvantages. Take a look at these to understand if they’re worth it.

If you have allergies, and you live somewhere dusty or pollen-under, it’s bad for you. Because the fan might bring in dust, which could be a big problem for you. 

The whole house fan is not for every environment. If the area is too hot or too cold, this won’t work.

While the fan is running, there is a vibration to it, which shakes the whole system. This vibration over time could become a problem for some people. 

Choosing the Right Whole House Fan for Your Place

Now that you’ve decided if it’s worth it or not, let’s get to choose the best one! There are certain key aspects to consider before purchasing a whole-house fan. There are 3 main types of whole-house fans in use today. 

The first is a conventional fan, which costs between $250 and $450. These are big fans that are ideally suited for houses in warm regions. They are less expensive upfront, but installation can be time-consuming and costly. 

In frigid areas, you’ll need an insulated box or hatches to cover the ceiling vents throughout the winter.

The next type is an insulated door-fan. This kind is ideal for cold regions since it has insulated panels that open when you need to use the fan and close when you want to trap heat. They do not circulate air as effectively as a normal fan. But because of the insulation, they can be quieter.

Finally, there’s an inline fan. Flexible vents connect inline fans to an exhaust port. They don’t circulate as much air as ordinary fans. But they do produce a good breeze in the room you wish to chill. 

They often feature damped doors, similar to insulated door fans. This provides insulation and greater noise suppresses.

For your convenience, here are our suggestions for whole house fans:

Product 1
Product 2

Installation Process 

Now that you’ve made your choice on the type, let’s install it. To install a whole house fan, you need to have some basic level of DIY skills. Otherwise, you’d feel overwhelmed. 

Tools Required 

For installation, you’ll be needing some basic tools. Here’s a list of things you’ll be needing. 

  • Tape measure
  • Drill 
  • Utility Knife 
  • Wrench 

Now let’s move on to the steps!

Before installing the whole house fan, make sure you have the power off. Switching the power of the house is very important. This prevents any kind of accidents that could occur.

Pick a place where you want the fan to be placed. Then trace the place according to the fan with 1 or 2 inches of spare space. This will come in handy while cutting the drywall. 

Then take the Brackets, and place them onto the cut-out. This will keep the fan in place. Also, this will provide the fan with power.

Now take the fan, center it above the ceiling joists over the cutout, and mark the bracket holes. Take the fan, remove the blades from it, drill the marked holes, then mount the fan there.

Finally, take the blades, tightly screw them to the fan. You can use deck screws or wood screws. After that, attach the vacuum box to the fan. Attach the remaining automatic shutter and the pull chain. And that’s it, your work is done!


Question: Can Whole house fans cause mold?

Answer: It is not unnatural if you find some mold around the fan area. Mainly because when the fan is running, it drags the air out of your house. Sometimes this means some cold or moist air could run through the fan. Which in fact, is one of the main reasons for the molds.

Question: Can you leave the whole house fan on overnight?

Answer: It is recommended to keep the exhaust fan on overnight. Keeping the fan on not only keeps your air cool but also reduces the temperature of your whole house structure. Cooling your home overnight could show some benefits in the daytime. 

Question: How big of a whole house fan do I need?

Answer: As per the California Energy Commission and department of energy, each home must have 750 CFM per square foot in the QuiteCool system. You can calculate by the measurement of your home. 


Now you know – are whole-house fans worth it? We hope that this detailed composition has helped you to reach your conclusion.

We wish you good luck in your search!

Have a good one!