Homemade 12V DC Box Fan! - Full Size! - 100% solar! (or battery pwrd) - 100w panel/motor - Awesome!
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- เผยแพร่เมื่อ 11 ก.ย. 2024
- Large 12V DC Box Fan! (w/motor speed control!) Easy DIY. Full Instructions. fan is powered using a single 100 watt solar panel or 12v battery. pushes same amount of air as an AC box fan. fan runs smooth and fast (super slow too - if you use optional motor speed controller). total cost only $45 (add 12 for the speed control unit). nothing like it on the market today so i decided to make one. great project if you're thinking of getting into solar power or off-gridding. has lots of uses and is super easy to make. note that a lot of the projects i've built over the years make use of a 20" AC box fan. now using this you can run all of those on solar too! fan is 21 1/4" square and made with 2x6 lumber (actual 5.5" x 1.5") and 1/2" plywood. the 4 small pieces in the corners are 2x3 lumber. fan is very solid and runs smooth. no vibrations or shaking.
i highly recommend getting the speed control device. it allows you to run the fan at any of 100's of speeds and can extend the amount of time that it can be run on a battery. average time fan will run on high with standard average size 100 ah deep-cycle 12v battery is about 5 hours. on medium it's about 10 hours and on low about 20 or more. note also that on medium or low you can barely hear the motor. here's a link (to a similar speed controller). the original one i used is not available at this time (but this one is just as good)
www.amazon.com...
🟢 if you like the vid. please rate sub and share!
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Just for fun I bought (6) 100 watt panels, set them up on the roof and went into the basement to see what kind of things I could do with 500 watts of DC. Right away I noticed no one makes a good 12 volt box fan. I ordered a new radiator fan that was balanced and has grills on both sides. I ordered a cheap speed control from amazon and installed the whole unit into an old case. Works like a charm except its a bit loud but I love that it can run right off the panels with no control. In the mornings it starts on its own and runs all day until dusk. Its perfect to keep air from stagnating in basements. Also all that free electricity is hooked up to strip lights in the closets and anywhere that I need it. I use it to charge all my batteries including all my yard equipment power tools etc. Anything left over goes into a 12 volt ceramic heater to preheat the water going into the hot water tank.
that great! you've found lots of uses. i run dozens of things just using 100 watt solar panels. i actually made this box fan because i couldn't find a 12v full size box fan anywhere. someone should make and sell them and include the 100 watt solar panel. simple off grid cooling
This is the way to make a video. Show the completed project and then show the construction methods to those who want to watch. Good job.
yes for people who don't want to put any effort into moving the video towards the end, it can help . ;-)
For getting the variable speed control and power consumption adjustment... this is a better deal. For those wanting to do this, using a normal box fan... A 12v to 120v (100w) inverter is about $12-$18, Plus the normal 120v box-fan for $18-$20 is total of $30-$38 for the setup. However, most 120v box-fans run at 80w (high), 70w (med), 60w (low). Using a car-radiator fan, with the PWM speed-controller, can give you more wattage control and air-flow control. (Only use what is needed.) From 10w-80w, normally.
A similar unit, pre-made, would cost you $200-$400 (Because they all like to price-gouge the 12v market.)
FYI: Junk-yards (u-pull-a-part), only charge about $5-$10 for a cars electric radiator fans. They will last for years! In a car, they normally only run when the car is IDLE and not driving. The bearings are 1000x better than any box-fan's bearings, and the blades are stronger and better tuned for "moving air" with a higher static-load. Also, they are almost ALL variable-speed ready. (You can even pull the fan controller from the same car, for the cars "blower fan", for about $2-$5, or free... as part of the fan pull.)
Add a cheap solar charger and a cheap 12v car battery, and you have a fan that can operate 24/7, at a modest setting. (For lower wattage and better air-flow, at a lower wattage, add a large 12v computer fan, which uses a stepper motor, which is more efficient at lower voltages. There is no shortage of "road-side computers" or "free computers", which are useless for computing, but they all have decent fans within them, that have plenty of 12v, variable-speed life left in them.)
PRO-TIP: Make a filter-cube, using 5 mass-air-flow, fiberglass, AC/Furnace filters, taped together to form a "box", and you have dust and pollen free air-flow, at high speeds, for a modest cost of adding another $10-$20 to the build. It'll clean more air, faster, than your homes AC unit would, with a fraction of the power. (80w instead of 1.8Kw or 1,800w) By the way, a homes AC blower-fan will add tons of heat to a house, that it is trying to cool. Almost makes it redundant, to a point. Best upgrade you can make for a home central-AC is to move the "blower-fan motor", outside of the house, so it isn't "inline" within the cold air that you are paying a premium for cooling, just to heat it back up again, as it cools the blower-fans, stressed motor. Stressed from, usually, a tiny, undersized, clogged air-filter, which makes it run even hotter.
P.S. They never include "internal blower fans generated heat", into the calculation when selling you a central-AC unit. They don't even include that heat, as a negative, in the "SEER ratings", or when measuring the real output of an AC unit. That is why a window unit, which has the motors outside and isolated from the internal parts, is more efficient, in all respects. They are just not convenient, like a central-AC.
I checked my fan motor inside squirle cage. It didn't seem to give off much heat and no where near what my fan belt 1/3 hp motors were always too hot to touch. This one is internal to the cage and must be far more efficient.
😳🍽️🍽️🍽️🍽️🍽️🍽️🍻🍻woah ive been thinking for about 4 hrs an im reading a book an a vidoe an forgot to watch/listen to it 🙈👀👂🏼
I need more of your opinion on solar please. Do you make content? Haha.
It’s about time someone makes a big battery operated fan. These little ones are “ok” but we need one with balls in the summer. 👍
Do u sell these ?
Your voice and cadence reminds me of the 60's
Now this was the video I was looking for!!!!!!!!!! I have a old Volvo radiator fan and wanted to reuse it for a box fan. I'm going to run it off a house wall socket though with a potentiometer for another fan. Thanks for the Idea!!!!
Glad I could help. i looked for a 12v box fan 'on and off' for a year or more. couldn't find one so i just made one 🙂
How did your fan work out?
How did your fan work out???
Brilliant. And you're 100% correct, there is nothing else out there on the market like this.
Very cool.
I'm doing the same thing with a small micro USB fan and a smartphone solar panel. Free energy on the cheap is very rewarding.
Finally someone that thinks solar is "free energy"!
This could be very useful for hurricane season.
Since you seem to have extra room inside that fan; why not make a slot for a furnace filter?
glue 4 filters together making a square, set the fan on top blowing up and you have a nice filter!
It is a good idea for 12 volts direct . Very useful is to run a fan with a small inverter a 400 watts or smaller will do but the more efficient the inverter the better . I even run a tower fan from my solar panels using a pure sine inverter. Also induction Cooktop and a Dometic refrigerator. You could probably run a small inverter and fan using 18650 batteries.
Great 👍!
Your projects are an imagination opener.
Please keep'em coming!
Look forward to the next one!
you'll love the next one. it's a video of the biggest and strongest DIY air cooler i ever made. totally unique and uses an actual copper/aluminum finned heat exchanger (radiator) - also 100% solar powered. thing absolutely blasts out the cold air.
This is brilliant. Full stop. Elegant, simple, efficient. Love it. Thanks for the great tutorial.
hi there and thanks! ✔
This is great; thanks! I intend to have a few direct 12v outlets scattered around my off-grid home and, using bug screening, this will work well for fitted window fans. The manufactured variety are terrible and suck when dealing with rain and insects.
Great for using as an office desk fan and when you're watching TV or reading
Good idea. Maybe instead of adding the old A/C grill on the back , you could add spacer blocks to place a 20x20x1 filter and have it clean the indoor air
hi. or just drop the 20 by 20 air filter on the back grill. that should clean a room or two..
@@desertsun02 I have one of these that I use with allergy rated filters on it blowing directed air on the baseboard heat all winter in the kids bedroom, it keeps them room really warm and reduces the amount they suffer from allergies :). You have some awesome ideas/projects, thanks !
same except i need to switch my 20x20 filter and fan to dc like this one
Great job! I think this would be a nice project to make and run from some junk 18650 battery cells as well. Excellent job site fan for a remote location and one could use the battery to charge a cell phone via a cig lighter adapter even!
Here in Australia i used to hook up a car thermo fan to a battery which was charged by 2 240 volt panels! Car thermo fan is the easiest 👌
Hi, Thanks for video, I have zero electrical know how and your method looks very simple, Some video s say I need a relay switch, Yours did not I couldnt add a relay if my life depended on it, give me good news, Do I need a relay for this project?
hi there. the good news is that you don't need a relay for this project. this is a very easy project. the motor directly connects to the power source (thru the motor speed controller)
@@desertsun02 Your a gent, Thank you
Very nice little solar fan project. I like the idea of adding a 12v speed control. Greetings from Jamaica.
thanks and greetings to you! 🙂
That's so cool! ;) Awesome project and great for people Living In A Van.
I am also thinking for a long time that 12v is the way to go for a lot of devices, PC, tv, radio, lights and lots more. Without the step-up and step-down losses!
Actually slowly converting everything I own to operate on 12v just like in motor homes or RVs. You can even upcycle a 775 motor and a alternator and ac system from a car to get AC at 12vs
This is the exact video I needed to know if rad fans would work with those cheap pwm controllers, now I can set up fans in the cab of my side by side 😎
hi. i'm glad it helped you!
This is by far the best TH-cam video that I've seen. Absolutely show the finished product. Absolutely, magnificent practice of your TH-cam videos, love it. Keep them coming, subbed, thank you.
hi and thank you! and that's for subbing!.
Cool. Ive attached USB cords to all my smaller stuff, my 3 to 6 volt stuff. Walkies, lights, fans. A 3 volt (2 D cell) personal fans runs well of a USB cord, more output and so far hasn't burnt a motor, and I have 2 of the same O2Cool personal fans. A big one would be great, so good idea and nice design. Almost could have reused a box fan frame for it though, which is what I'll do if I find a junk one.
Usable beneficial content with out all the rambling on, Outstanding! And thank you! I have been thinking about this for a while now.
thank you!
Thank you so much for making this video!
you're very welcome! 🙂
Where did you get the fan?? Is it a special solar fan?
great video!, thanks for sharing my friend 👍👍
Thank you 👍
Excellent video, thanx for sharing.
The first time I made one of these was after a summer storm took out our power and it really helped beat the heat.
nice! - these are great for planned (and unplanned) off-grid situations for sure 🙂
I picked up a large radiator fan off the curb and was using my jump box to power it while waiting for my granbrats to get out of school, I just hooked it up to a battery I'll charge through the cigarette lighter. I did a video a few days ago... super basic.. a frame like this may be nice..and a controller
Please. share link so i can see project you did
@@ogunstatelands not really a "project"
i literally hooked my jump box to the bare wires of a truck radiator fan and stuck it in my trucks back window, the video is trash to treasure
th-cam.com/video/-5OJQS9XvuY/w-d-xo.html
Being a radiator fan it can handle water. Build your frame from 1x1 and coropoastic sheeting. Perfect for a mist too.
Thank you. Great video! But where's the remote? LOL!
This is a game changer. I could use something like this when I go to Slab City
Just awesome
Cars now use a 12 v fan to cool the radiator...i think you could buy the motor and fan together..
This is a great project, That´s good work, i will build one myself, thank you for the Video.
hi and thanks. i'm glad you're building it!
That is so....COOL!
thanks! (i couldn't find one to buy so i just decided to make one). i bet if someone started selling DC powered 20 inch box fans and a solar panel - they would sell lots)
So, bare copper wire like an ac cord can be spliced right to solar cables?
yep, that's what i usually do.
@@desertsun02 I heard that before but never really believed it
Does the gauge of wire matter?
yep, but even a light/medium duty extension cord wire usually handles 13 amps and a 12v 100w solar panel puts out 5.5 to 6 amps (usually) so regular extension cord wire can usually handle two 12v 100w panels
thanks for showing the solar cables
to the fan cord
I have been gathering parts for a project like this, I have a pwm speed controller, to work with up to 60v DC. And a fan I may or not use, an aftermarket car fan, 14"-16" I will be using batteries though, I'm off grid, I have both 12 & 24 v batteries and 120v avalible, but more I can power from straight DC is more efficient, like my lights, they are 99% all dc, I have 120v lights but only if needed, my inverter is for TV fridge and microwave, well pump,
Where did you get the pwm speed controller? Thanks!
Looks incredible. I gotta build one
Nice and quiet.
if you like the sound of jet aircraft.
That's a neat idea, would be great for camping.
would be great to explain how to make a box fan without a box fan
Thank you for making this! Very informative
you're welcome 👍
Thank-you very much! I was looking for the same, from long time 👍👍👍
Glad I could help 👍🙂
Great work
Thank you for answering my message, I already ordered it. :)
I just put some 120mm PC case fans on my rabbit cages to keep them cooler. Do you have any suggestions for something Ike that?
Looks awesome
thank you for the great idea video
Great job . Thanks for the video and for sharing your knowledge.
Great! that's what I was looking for. thanks.
you're welcome. 👍🙂
I've tried something similar. I found that the blades on those radiator fans is optimized for pushing air through a radiator, rather than moving a large volume of air at high velocity. It really didn't work that well...
hi. main thing with these is that you have to flip the blade (sometimes) if you run it the other direction. if you don't it won't move much air. makes huge difference 👍
love your video bro going to make 2
Amazing man.
hi and thanks 😎👍
my kodiak will have no problem running fans anywhere in the house---can you make me one of these with a long dc plug in from my solar panels 50 ft cord
sweet u just gave me an idea i'm going to convert my trailer swamp cooler to 12v with a rad fan and 12 water pump the fan in it is about that size
awesome! the video i posted just before this one is just that - a large solar powered evap cooler w/radiator fan and 12v pump. if interested here's the link th-cam.com/video/0LTdGjirNj8/w-d-xo.html
Exactly what I did a few years ago. The motor on the swamp cooler pulls too much. So I pulled it out and installed a 16" dc fan inside the housing with a fan speed controller. This setup keeps me and my animals cool during the triple digit temps.
very cool deal there ... New Subscriber here... love wat it doing there.. thus will be a great way to cool my garage down. and blow hear from my woodstove
So this fan is brushed motor?
The dimmer controller says it's specifically for a dc brushed motor and unfortunately no longer available.
It's confusing on Amazon whether the automotive dc fans are brushed or brushless.
I was told brushless motors are better bc no or low maintenance? Help me understand the details behind which fan and etc parts needed for this. Off grid desert stables really need these to help with fly control and cool the animals. 🙏🏻
hi there. most radiator fans are brushed so these motor speed controllers work good with them. if it's brushless it usually says. yep, looks like that link is old so i added a link to a different motor speed controller. it is just as good
www.amazon.com/Motor-Controller-Enmja-Adjustable-Regulator/dp/B09Q2QVWVX/ref=sr_1_1_sspa?crid=18SVQFRC9REMA&keywords=12v+motor+speed+controller+20a&qid=1653515188&sprefix=12v+motor+speed+controller+20a%2Caps%2C190&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzQ0tIMk5GQkJFRDFRJmVuY3J5cHRlZElkPUEwOTgyOTQ2VzlWTlNUNUNGTU5WJmVuY3J5cHRlZEFkSWQ9QTAxNDQ2MDkzQVlZWENVSTBHSFpUJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
i have the same fan with no directions is the black wire negative and blue wire positive
From México , great idea ,using they fan of 12v. Is there si a way to o add a ac cooler system of any car on You proyect?
Very nice, this is a project I'd like to copy...Just wondering, whats the noise levels?
Great idea. Thanks for sharing.
Very useful 👍🏼
Does this fan motor need to be lubricated?
What's the maintenance on the panels?
I'm in desert also but don't understand the safety behind making a setup like this and the longevity.
Doesn't it need fuse?
I'm looking at outside setup for horses and a portable one when I go to dog events. 😊 Wish you were local, I need a Solar and Electricity Mentor!
hi. nope, the fan motor doesn't have to be lubricated. these motors will run many years and are 'maintenance free'. there is no maintenance on the panels either (except for keeping debris off of them). these types of fans can easily last 15 years and the panels last 20 or more. there really are no safety issues with this. it's basically just an automotive radiator hooked to a solar panel. just make sure to use a 12v solar panel. no fuses are needed
Thanks!! ❤
What about air flow gains,in a room
Nice 👍🏻👍🏻
Nice video
thanks 😎
Thanks great idea!! Good Job
Where did you get the sheld on the other side of the fan.
Which radiator fan did you get for this?
Any car wreckers ( car junkyard) thermo fan will do. A 10 inch needs around 300 watt in solar for decent power
cool,,i will give this a try
How are you running it direct off the solar panel without a buck/boost converter isn’t the VOC too high?
hi. the voltage is fine. the fans are made to handle a range of voltages. the voltage from 12v panels is a little higher than 12 volts (from 15 to 19) *but 12v power supplies run higher too. the output voltages of my 12v power supplies are from 12.91 volts up to 17+ volts.
use a treadmill motor, and a 3 blade fan , I have that I use at my shed and it uses a lot less current then a automotive fan
I"m interested in that kind of fan as I have an old treadmill motor. Could you give a link or advice what kind of three blade fan you mean? Thanks!
Could you connect a alternator and belt to fan to charge batteries?
interesting idea
I can't find this fan on amazon. Does anyone have the link for it?
Could you control the on off and speed with a dimmer wall switch?
Amazing!
Nice!
Good job !!!, I'm going to make 1 of these.
awesome! it's a great fan. you'll love it.
@@desertsun02 Is yours a 120 watt fan ???
hey. will it works at switching power supply?
I want to use one 200w solar panel and 2 of same fans that you use.
Would you put two wires into the speed controller and split it there?
Or would you just wire them(fans) in series , parallel? Sorry I forget
which one does what, and just use one wire out of controller.
I'd prefer just to use solar panel to run them, so is 200watt one
enough for 2 fans?
I would have them up in attic, but if power went out I would
pull them down and want to use them for air circulation after
power loss to home. So where to put quick connects in circuit?
Any idea welcome, and those fans are a genius idea.
hi there. i'd wire the fans in parallel (parallel keeps the voltage the same but spreads out the amps). one 12v 200w solar panel would probably be enough to run 2 fans close to full speed.
I tried this with a radiator fan and a 5 gallon bucket. I can't figure out why it doesn't blow as hard as I think it should. It's a 12v smaller radiator fan, is the bucket too big to push through? I am using a good DC power source until I switch to solar. Thanks
hi there. i'd have to see your set up to give much advice on that. if you want you can send a pic of it to my email address (the one listed under on my channel in the 'about' section of the channel) and i'll try to help from there.
I had a fan like the gray and white one it moved a lot of air it was great the only problem was the motor was way too small and burned out
I'm curious, is it really necessary to have such a large solar panel just to run one fan?
Do you have a video on solar panel options? I'm a total noob ha....I just assume you could run this off of a much smaller solar panel for camping etc
hi there. yes, for this fan you need a 100w solar panel torun it at or near full speed. you could use smaller panel, maybe 50 watter, but it will only run fan at half speed. which is like a regular fan on about medium so still not bad.
is that a racecar cooling fan ?
I am getting a small solar setup that has a 12v battery and I'd like to be able to hook a fan in it. Where did you get the fan you are using. I can hook a fan into it with a car cigarette charging port, but I'm not sure where/which fan to buy with a DC motor. Can you link to the one you have in the video?
hi there. i get my 12v radiator fans on amazon. links change often. the one i used is 16" 12v car radiator fan. best way to find them is search amazon. they got tons. ⭐🙂
Awesome, what were the dimensions of the radiator fan? Any suggestions of one on Amazon that fits your design?
hi there. technically it's a 16 inch radiator fan (counting the grill about 17"). any 16" one should work with this design. i just used a basic model 2000 cfm'er (made by mostplus i think) cost $30 (actually 27 and change). i want to see someone make it with an even stronger 16" fan. i've seen ones that use 160w or even over 200w and have cfms well over 3000.
Excellent video, could you put the link where you bought the radiator fan, please. Thank you.
hi and thanks. the exact link isn't active at the moment, but any 16" radiator fan will work. they got lots of them on amazon.
I wish you could sell these already made. I have need but cannot build this
hi there. maybe someone could help you?
This is awesome, I have a space at the flea market n there's no electrical outlets there, so I've been looking for something like this solar or battery. Do u sell these , I've very interested.
Thank u
hi. i don't sell them but it's easy to make ✔🙂👍
I want to put one of these together and add that controller..could someone show a more detailed video about the wiring or point me to video that might show it..😉thx
hi. adding controller is very simple. it's got places for 4 wires. 2 for power and 2 for the motor. each connection point on the controller is labeled so you just insert wire and tighten it down.
@@desertsun02 thank you👍
Great video
hi there and thanks ✔😎
Can you provide the link to this 100watt solar panel please?
hi. that particular panel is about 7 year old so i don't have exact link. to find one similar search amazon for 100 watt renogy solar panel. truthfully, i used to recommend renogy panels but i've bought many other brands since then and they seem just as good. i just bought a HQST 100w poly panel for about 80 bucks and it seems just as good or better.
So if the fan is rated for 12v but the panel is rated for 18v will that be an issue connecting them directly?
I would just stand in shade so as to not need the fan, but that's just me.
Couldn't you just gut out the old fan and use it instead of the heavy wood frame?
hi. that's a possibility. just have to figure a way to mount it to the metal frame. if you experiment with that - let us know how it works out.
Can you make a Solar Powered Swamp Cooler next???
hi there. already done. that was the video i made just before this one. here's the link.th-cam.com/video/0LTdGjirNj8/w-d-xo.html it's a 100% solar powered unit with a 2000 CFM fan. both it's fan and water pump run off a single 100 watt panel. same exact power as this box fan (but a smaller diameter fan - only 7")
Does that fan speed control module is it able to turn the fan completely off? Or do I need to disconnect the fan from the 12 volt source?
hi. it turns it totally off 😎
@@desertsun02 I bought all that stuff and it didn't work. But I wire the fan to the battery it's too much power. I think I got a bad switch I'm not getting no power to the fan. Is blue the red + and black the - ? For the fan. Thanks for the help.
@Brian Reynolds if i understand what you're saying, you're saying that when you hooked the battery to the fan it ran at full speed (but that was too strong of a breeze?) ...and then when you hooked the speed control switch in-line the fan wouldn't run at all? if that is what is happening then it could be a bad switch (unless you put the wires into the switch in the wrong places). also did you buy a 12amp or higher switch (like the one i used)? if the switch isn't rated to handle the amp draw it could just burn out within seconds. most of the fans i use can be hooked up either way. (depending on which way you want the blade to turn).
I use the same model that you use and it turns out that switch was bad. I went back to Amazon and got the 30 amp switch and it turns out that the 30 amp switch works. I replaced the one that you told me to get in the parts last but this model number at Amazon Asin# B09Q2QVWVX this one seems to work out of the box. I didn't wire it the wrong way because the wired this one the same way I wired the other one and this one works the other one didn't. Apparently I got a hold of a bad switch.
@UCoVt9WOZcTYadXM64jQLfjw - Rigging that fan as a swamp cooler is a easy next step.