What whole house fans do Are you the type of person who likes to opentheir windows at home?If you are stay tuned because we are talking about Whole House fans next.
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Whole house fans are mounted in your ceiling and are used to bring the cooler outside airinto your home and bring it inside.
By opening your windows around the house, the whole house fan will bring air outsideyour home to come inside.
This way you have fresh air coming into your home.
The second benefit of a whole house fan is that it cools off your attic, so the entirehome can perform better, and save you energy.
Don’t confuse these with attic ventilating fans that mount on the gable vent in yourattic and point outwards to vent the attic.
These fans mount in your ceiling and point towards the attic.
The difference here is, a whole house fan will complete the cooling process much fasterand probably bring your attic to a lower temperature than an attic fan will.
Fox Family carries two types of whole house fans, the QuietCool brand and Triangle brandof whole house fans.
We love them both, but for different reasons.
People usually find themselves really liking one or the other, too.
QuietCool is a brand that has stormed the industry with innovative thinking and lowenergy usage fans too.
They started up in 2003 out of Temecula, California.
Triangle Whole House Fans are the more traditional style fans.
They are a little bigger and might run at a little higher decibel rating, but they movea ton of air very quickly.
We’ll talk more about that later.
Getting straight to it, I want to point out the features of both fans, and then let youdecide which one is best for your home.
QuietCool Fans – The first whole house fan I got for my homewas a QuietCool whole house fan.
I was drawn to it, because as an HVAC technician, I liked the idea of attaching a flexible ductto the grille that you see in the hallway and placing the fan on the other side of the10 ft duct.
That way the sound of the fan is insulated.
They have different capacities of fans too.
QC even has a sizing formula page on their website that is pretty easy to use.
But they are suggesting on their website that we size the system for between 2 and 3 cfmsper square ft of your home.
So if your home is 1000 sq ft, you’ll want a system that can move between 2000 and 3000cfms of air.
So then you go over to the different models and find the Trident Pro 2.
5 and Trident Pro3.
3 will move between 2500 to 3300 cfms of air.
The technology I like about QC fans is in the insulated damper that shuts off any accessto the attic when the system is turn off.
Because the damper has an R-5 insulation rating on it, they do a good job preventing heatfrom the attic from coming into the home when the fan is turned off.
In 2011, QuietCool became the first to incorporate ECM motors with the fan.
ECM motors run quietly and at lower amperages than regular PSC motors.
PSC motors are the ones that you’ve seen on traditional whole house fans since the1960’s.
They require a capacitor to run properly.
If the capacitor fails, the motor won’t work.
You’d have to replace the capacitor before the motor would work again.
ECM motors are electronically commutating motors.
A point I want to make here, is in studying the QuietCool ECM motors in the Stealth Proline, I found they operate better at lower fan speeds.
We have a two-story, 2200 square ft home.
I installed the 1.
5 Trident Pro in my Master Bedroom ceiling near the door.
I put a 3.
3 Trident Pro at the top of my stairs on the second floor.
I made a video on that one.
I’ll leave a card at the end of this video so you can watch the install.
When I turned them on for the first time, I wasn’t really happy with the volume ofair it was moving.
I mean it was nice but, I guess I was looking for more.
So, from then on, I always recommended to people they get the biggest one they can affordand use the 3 speed switches they give you and adjust the air flow accordingly.
The motors run more efficiently at lower speeds anyways.
Okay, point made about QuietCool’s volume issues.
I’ve mentioned it a few times before.
And oversizing your QuietCool fan allows you to use lower speeds which saves money in thelong run.
Triangle Whole House Fans – When you mention traditional style whole housefans, people think about loud whirring helicopters rumbling in their homes.
And QuietCool does a good job of making that point on their website.
But lets take a look at an American classic, the CC Series of Triangle Whole House Fans.
As a technician working in hot attics, I noticed how much more air these traditional stylewhole house fans seemed to be moving.
In fact, we’ll turn these whole house fans on during hotter days so we can bring thetemperature of the home up into the attic, which is, at times, 30-40 degrees difference!And the homeowner has fresh ambient temperatures coming into the home through their open windows.
The blades are larger, thicker and more durable.
The belt drive is the secret to its quiet nature as well.
The motor sits on top of the frame instead of near the ceiling joists.
This reduces the vibration and noise from the fan blade.
Other store bought whole house fans have the motor mounted directly to the fan blade withoutthe use of a tension belt.
You really have to hear it to believe it.
All the noisy traditional style fans I’ve seen were old, too.
Like 20 years or older.
Some way older!You’ll feel and hear the difference in sound and volume of air once its installed.
Think of these as the luxury cruisers of the whole house fans.
How much air do they really move?QuietCool fans are sized in 1.
5 for 1500 cfms, 2.
5 for 2500 cfms, 3.
So, 7000 cfms is the max you can get from a QuietCool fan.
Triangle fans are sized in 24”, 30”, 36” around here.
They do have a 42” and 48” but we don’t have them around here.
The most common 30” moves over 7000cfms of air, and the 36” fan moves over 9700cfms of air.
Almost 3000 cfms more than QuietCool’s biggest fan.
So that’s pretty impressive to me.
Where are they installed?Both of these fans are mounted in the ceiling.
The triangle fan is mounted on top of the ceiling joist in the attic, bringing the fanblade further back to reduce noise.
So, no cutting of the ceiling joists is involved.
The QuietCool fans can be installed in between the ceiling joists without having to cut anythingtoo.
In the center of the home is the best place to put your whole house fan.
Zoning your home with a couple of these fans is pretty common too.
Like I said, my house has two Quiet Coll fans.
One in my Master bedroom and one in the main hallway.
We like to close our door to the master bedroom at night so having a small fan in our roomreally helps on those night s the delta breeze has kicked in.
Most people don’t create a whole new dedicated circuit for these fans.
They usually tie into the existing HVAC electrical circuit for the furnace.
The reason for that is, nobody runs both the whole house fan and their furnace or air conditionerat the same time.
So here's something you might not know about getting a whole house fan.
getting a whole house fan is a great idea.
but do you have enough attic ventilation so that when you draw in that outside air, where does that air in the attic go? If it just compresses up in the atticThen, you're not really maximizing the potential of the fan.
You’ll want to take a good look at the ventilation in your attic, because you can only bringin as much air as you can discharge out of your attic vents.
If the air doesn’t go out of your attic, it will go down your walls and other penetrationsaccessible to the attic.
Quiet Cool recommends you provide 1 sq ft of venting for every 750 cfms of air the fancan move.
So if you got a 4.
8 model that pushes 4800 cfms of air.
If you divide the 4800 cfms by 750, you’ll get 6.
3 sq ft.
3 sq ft is the total size of all the vents in your roofing system that is requiredto meet factory specs when it comes to ventilation for these fans.
DIY or Contractor?The best DIYers can install these themselves.
A little electrical knowledge about switches and proper ventilation of the attic will goa long way installing these.
Like I said earlier, I’ll leave a card at the end of this video so you can see an install.
If you do need a little more help with installing a whole house fan here in the Sacramento area,we’d love to be the company that gets to do that for you.
Warranties – A 15-year warranty comes with the QuietCoolSystems.
Only a 1-year warranty comes from the manufacturer of Triangle Whole House fans.
So that’s kind of lopsided there.
QuietCool says they will replace any part that fails for the warranty of that system.
So what do you think?Which whole house fan do you think is better?Have you seen or heard these older style fans?What do you think about them?And what do you think about QuietCool’s fan?Is it strong enough?Let me know what you think in the comments below.
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