Can You Make A Whole House Fan Automatic?
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- เผยแพร่เมื่อ 25 ส.ค. 2024
- After automating a whole house fan, Adam now keeps his home cool throughout the day and eliminates the need to use the A/C unit in the evenings. Precooling your home with a whole house fan and maintaining the temperature with your A/C unit is a great way to save on electricity. As a huge advocate of solar and home batteries, Adam is also on the lookout for ways to make his home more energy-efficient and stretching his solar energy production. In this episode, he shows how a QuietCool fan can be integrated with smart home technology.
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good stuff
The hardest thing about making this automatic is if you don’t have a dog door like he does you manually have to open up your windows. You would have to integrate some type of dampener air in take from the outside if you don’t have a dog door plus you open windows throughout you house in various areas to cool your whole house down, if you only open one window in a room it won’t necessarily cool other rooms down. If you want to cool your attic install a solar hybrid attic fan, quite cool makes one of those too.
My thought was to run some drier vents in my crawlspace to a couple of locations in the house, fed from a common air box, with HVAC filter pulling from outside the house, preferably under a shaded porch. Adding an automated vent and locking it to the power supply of the whole-house fan would give you the full automation of not having to open/close windows everyday. Then perhaps a winter-time insulated block-off door for the attic and crawlspace duct work, so that they are not allowing air movement while the furnace is running. Then run the whole system off a dedicated non-battery backed solar panel so that when the heat is highest under direct sun and the need for cooling is highest, you get automated cooling. Hardest part for me would be an AC lock-out, to ensure I'm not pumping cold air into my attic by accident.
Thanks for sharing this video. I am in Utah. Will you please post links to the Wi-Fi module, temperature sensors, etc.? Thanks!
Thank you for sharing.
Thanks for watching!
My understanding is that WHF's need a certain amount of intake Net Free Vent Area so the fan motor isn't over-taxed trying to suck air through a smaller area (which drives up the power used by the fan via over-current and burns out the motor faster). Your QC STL Pro-3.3X moves ~3,000CFM and QuietCool recommends 1sqft of vent area per 750CFM of fan flow, so 4 sqft with your fan. Are you concerned you'll burn out that motor if only that ~1sqft doggie door is all that's letting air in?
Also, even though the higher pressure feels cooler since it's in motion (ie wind chill), isn't the goal of a WHF to perform as may "air changes" per hour as possible to cool down?
I ask because i have a QC WHF too and am experimenting with how many windows to open to cool the place down in the morning before it gets hot outside. So far, I have best luck by just opening the door at the far end of the house (huge intake vent area!) and kicking on ceiling fans to help clear hot air pockets in my house into the incoming stream of air to then be sucked out at the WHF ceiling vent. Thoughts?
quietcoolsystems.com/docs/QC-STL%20PRO-3.3.pdf
Minimum Suggested "Attic Venting" 4.22 SQ FT net free area. I think all Windows open a bit should get 4.22 intake but it says Attic Venting, so you would need more vents if your attic does not have 4.22 SQ nfa exhaust. Maybe you could install 1 large gable vent or multiple vents into soffit. I hope everything works out well for my install... How did they get the pro model? I thought only purchasable through contractors and also read only 2speed for all other consumer/DIY models. Hope they are wrong and can wire 3 speed on es-3100.
Is it possible to install vents to let air automatically, if we don't have doggie door? If so, should it be in every room?
Do you have the links to the controller and hardware. Good video, amazing more people do not couple an Attic fan with their HVAC. I recently executed a whole house fan, however, had to vent into my crawl space as my attic is sealed with the Spray foam.
www.econtrolsusa.com Was out of stock and not available to order recently though.
Love your theology approach there are lots online speaking negatives about whole howse fans in life theres always pros and cons ,,give take but im feeling to to give some for better not a bad trade,,,thanks youve just helped make my mind up about wwheather to do this,,unsure if ill go with this brand,,im literally trying to cover both sides of spectrum attic fan and whole house fan more so attic fan because im looking seriously at if i can reduce the heat generated from the sun in the attic then the inhouse temps may be cooler essentually reduing the heat in the attic which generated in the home from the heat in the attic from the radiated suns heat,,does this make any sense in the way im thinking lol ?
How about an automated outside air vent in another hallway? Opens with the exterior temp sensor.
Please let us know what products you used. This is exactly what I’ve been researching for the last few months. I’ve devised an fresh air intake system but need this switch setup. My new fan showed up today, so the sooner you could let us know what you used, the better. Thanks. This is great work.
Yes, please post links to each component or this video is a bit useless. So far, a controller for a solar water heater pump is the only off the shelf product I could find, or else I’d need to build from scratch. Help!
@@robwickham8530 FOUND IT!!! Econtrols is the company. www.econtrolsusa.com. Their mobile version of the site is horrible, but when I finally figured out that I needed to view it on a computer, it was great. They pointed me to the
iMKS Whole House Fan WiFi Control with Sensors
Price: $150.00. I told them I would have paid double that. I’ve been looking for so long. I already bought and installed it. I ordered it Thursday, and received it Friday. Amazing customer service when I spoke with them. I haven’t installed the sensors yet, but setting up WiFi switch was super easy.
@@astephens9923 just ordered one now!
Glad you guys figured it out. I was going to post it, but they were out of stock at the time. It's a great controller and very reasonable price.
How much did you pay for the controller? Did it come with all the sensors you used?
how is the connection? i kept getting disconnected so frustrated
You're wearing out your fan motor by not having the matching amount of open windows/door/vent. That dog door isn't enough.
=) what are the part # used?
is there another way to make the whole house fan automated?
My installation was difficult due to my attic, but this is actually an amazing/great way to make a whole house fan automatic. But essentially, no, there is not. Maybe there will be a future system that is a little easier with remote temp sensors (but then you have the problem of cost and changing batteries...)
You still will always have the issue of making sure air intake is possible. The doggie door worked for me, or you will have to leave a window cracked open or manually open it.
Probably not the best place for your thermostat bud 😂
Wow he invent that? Lol I s was mind blown.
But in Texas the addict is hot how this will work on my house
The attic stores heat and the fan will blow the hot air out the soffit vents and replace it with the cooler air entering the home through the venting windows. With a little time, the whole house (attic included) will cool off from the evening air.
Most addicts aren’t hot, you must have a new one.
With sunny, hot weather, Attics will get hot. That's where they work best (as well as low humidity)
If you notice your HVAC cycling all night even though it's 50-65 degrees outside, it's cause your attic keeps baking your house all night, but not if it's vented from a whole house fan...
Texas is generally dry heat, so should work well.
Why in this day and age install something so inefficient? In a state with a 70%+ humidity those don't work.
Those are so 1970! Not to mention dangerous. Folks have died from carbon monoxide from those things. But they saved a dollar. Sorry 35+ years in HVACR and home construction industry say these are a waste of time.
Sorry for the delay, my schedule has been crazy. I did see this right away, and noticed my HVAC had just turned off and quite cool just turned on... So, I looked at my Sense monitoring system (too bad I can't post a pic here). My 4ton HVAC was using over 4000W when it turned off, and the Quiet cool started up and ran at 285W- which one is inefficient??!!
Yes, you obviously should not install them in humid areas... so, then I checked my humidity in SoCal, and was below 40%, nice, that's why it works so well, and they are so common in SoCal. And for sure, only a professional should install them to make sure there is nothing that could be hazardous in the installation.
I would also only recommend them for people that like to open their windows for fresh, cool, outside air. If you like closed windows, AC, and higher bills or more solar, then don't get one.
CO poisoning? How? Where is the CO coming from and why is the fan not pushing it up and out through the attic along with all the hot air?
Just another junk product sales pitch.
The motor itself burns kilowatts, not to mention the support hardware/controllers. Waste of time watching this.
Uncle Hisler? Is that you?
Chmo