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Low Voltage Solar Shed Ventilation With Radiator Fan and Solar Panel - Plus Bonus Projects
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- Опубліковано 21 сер 2022
- A longer video for folks who like to see the details. I added solar powered ventilation with a car radiator fan to my smallest shed and made an EXPERIMENTAL! magnetic solar panel. Please note I DON'T recommend mounting solar panels with magnets. The wind can just take them away. I do not recommend this type of install as shown. It is EXPERIMENTAL and not permanent. Very small solar panel also.
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Check it out! My Complete Guide to Solar Shed Ventilation! 4/2023
• SOLAR shed ventilation...
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Part 2 - follow up 4/2023
• Low Voltage Solar Shed...
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//// Parts List for this video is below! ////
Update 4-2023 I'm still using this fan setup successfully but made some changes. Hope to post a video soon.
Also included some footage of my workshop and one small extra project. The low voltage solar panel that appeared in this video is very hard to find these days, but there are plenty of normal panels available that will work just fine.
If you have any feedback or questions, please let me know. Hope you enjoy the video. Thanks for watching -DDSolar
#solarshed #offgrid #offgridsolarpowersystem #offgridsolar #offgridandongrid #shed #sheds #ventilation #ventilationsystem #ventilationfan
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/// PARTS LIST ///
Want to support the channel? See below for a project parts list for this video! Please note these are affiliate links which earn me a "tiny" commission. Thanks!
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/// Radiator Fans
12 Volt (10 / 12 / 14 / 16 inch) 90-120W car radiator fans amzn.to/3Kt33wX
Small 6 inch car radiator fan amzn.to/3KOXwlQ
/// Example Golf Cart DC converter:
JP Golf Cart DC-DC converter 24-36-48V to 12V (120W) amzn.to/3UpqrA9
/// Example DC converters:
XINGYHENG 5A DC-DC Buck Converter (small fans or low power setting only)
amzn.to/3zPOdf3
My Favorite Brushless DC fan - SJ amzn.to/458UZez
D-FLIFE CC-CV-DC Converter amzn.to/3nZsuyB
/// Example PWM motor controllers:
RioRand 30A PWM amzn.to/3zPJ3Q9
HiLetGo 10A PWM amzn.to/3MAlr9Z
PWM motor controller with display amzn.to/400LSbJ
I really like your shed and how you have the back of the walls open for access.
Thank you for this video on the fan.
@OP-fd4lh Welcome!! It's very useful for running wires and installing fans :)
Great experiment, thanks for sharing. Good video and explanations 👍
@mbrad2669 Welcome! Thanks for good feedback :) 👍
Excellent video! It answered a lot of my questions. Thank you.
Thanks and Welcome!! :)
Nice. This is exactly what I'm trying to do in my greenhouse except I'll flip the fan to exhaust the heat.
I have a 200 w solar panel I'm connecting directly to the same 12 v fan. Thank you!
@kingofkleen1 Welcome!!!
love the vid
Hey! Glad :)
I'm pleasantly surprised by the 35 watt panel running the fan that well! I'd hate to see the panel blown off the roof. I've had some blown off and literally ripped thru the roof deck (a fist sized hole). Maybe some roofing screws (with the screws normal rubber gaskets in place) holding brackets to the existing steel purlin (with some of your neoprene between bracket and roof) would be safe on the roof and then used to better secure the panel at least along one side.
Yeah it ran pretty good! I hope it lasts like my other one. Thanks for the warning about the mounting. The power of wind is truly enormous. This solar panel mount is not secure at all for windstorms and just experimental. It would have been easier to use tek screws and some rubber. I want to play with magnets of course. The key is to keep the wind out from underneath the panel by mounting it tight to the roof. If any strong wind can get underneath the edge of the panel, it's at risk. I don't know what the final mounting solution will be, it going to take far more effort and probably long screws :)
20x20 A-frame shed with the same ribbed metal roof. I used S5 rib-brackets and covered my roof with (12) 245w panels. 6 panels on each slope. The shading and air gap between the roof and panels was enough to dramatically reduce temps. In South Texas where even ambient can be suffocating, I can run (6) 8' led strips, a 10k window unit and two of the same 12v dc fans for interior circulation.
Nice setup!
Worked well!
I would put an exhaust ventvon opposite side and would DRILL holes to mount panel. Need to remove it? SILICONE CAULK
@bobcole3852 Good points... I later mounted a 50w panel flat on the door using self tapping screws. Now testing a 24 volt car fan in there, runs smooth as butter... will post a video about that asap
Nice video! I liked the simplicity of the approach. I would also like to know how much the temperature in the shed is reduced. I have a hot attic and these solar attic fans are being pushed pretty hard right now, but it is hard to judge if they are worth the price.
Thanks a lot! When the sun is beating down on the shed, the small panel has enough juice to keep the shed a little above ambient. 75-100W panel would be better or install an extra vent. I bought a dryer flap vent. If I can get over making a hole in my shed. The fan is mostly blocked (vent is not passing much fresh air in).
My shed is very small. 8x10. I wonder how much air do your attic fans pass? It's a matter of the cubic feet of space in the attic, whether the fans can breathe (fresh air intake restrictions interfere with the exhaust) and if the panels are small like mine, they won't move as much air unless the sun is really out. In my last house, I almost installed a big fan in the gable end. That would have done the job. But not cheap and I didn't want a big hole made in my house. Another option is radiant barrier to reflect the heat back out. Not too hard to install with a cordless stapler, if there is a floor to walk on up there :)
Great work!
Learned a lot from ur video.
I can't find a low voltage panel . Most panels now are 12v but max voltage can go over 17v. Not like ur panel max at 10v.
Thanks :) I can't find any more either. Thankfully can still use normal 12v panel. It's possible a 12V DC converter would be required with a bigger panel to avoid burning the fan. For that I use those golf cart 12v power bricks
@@solarpoweredge Thanks for the reply. You mean use a pwm to lower the output?
You're welcome, I mean a DC-DC converter (although PWM could work too, I've used both together). They look like a small aluminum box with fins, and are used on 48v golf carts to run radio, lights etc on 12V. It is shown in this video with a small fan attached on top: ua-cam.com/video/15fQV3__6iw/v-deo.html
@@solarpoweredge hi thank you for the info, I have found it, I'm sure many of your viewers will benefit from these info. I have bought a 60w panel. with max 17w v. will try a little experiment. thank you and more power to your channel
No problem sir :) thanks for support and hope your experiment works out. A 60W panel should get a fan spinning pretty good, I'd think
Yet another great video.....what if you used some larger magnets instead of the steel strips inside? Maybe that would make it even stronger?
@Ulbre Thank you very much :) Good ideas... bigger magnets are better... I have now a heavy 100 watt panel stuck to the side of my workshop with very strong magnets.... if only I could make more videos lol! Hopefully I can document these projects soon
I want to hook up a fan like this in my 10x20 shed. How can i hook this up using a regular socket setup with a speed setting and a timer so it doesn't stay on all day and night? What's your suggestion?
Car radiator fan uses about ~10 amps at 12 volts DC. You could use a 120V AC adjustable 10 Amp DC power supply with a standard wall outlet cord. Those are very common, also called a "bench power supply" and some are just a generic power supply. But it needs to have 10 Amps of current at least. Set the voltage output to 12V DC or less. At 12V the fan might get hot, and or the power supply might get hot too, so 10V is better.
Once voltage is set and fan is working, just plug the supply into a standard 24-hour AC outlet timer switch, set it for daytime hours / off at night, should work.
I bought a 100 watt solar panel from Harbor Freight and a 16 inch radiator fan from AutoZone. I cannot get enough juice to turn the fan. It only twitches when I touch the leads together. Any help would be appreciated.
@TA-kr1di Hi, something is definitely wrong... a 100w panel will spin a 12 inch fan very fast. A 16 inch should at least move some air.
Here are some ideas for troubleshooting:
1. Test the fan with a 12 volt battery (careful, this is dangerous) it should run strong. If not, the fan is faulty.
2. Verify solar panel is in direct sun with no shading on it; then use a voltmeter to check the voltage (without the fan attached, and while the fan is attached).
Open circuit voltage should probably be around 18 volts.
With the fan attached it should still make 5-8 volts.
3. Check the short circuit current of the solar panel - according to HF's website, the Thunderbolt 100w panel should produce about 6 amps. With the solar panel in direct sun light, short out the leads through a multimeter on the 10amp range, or use a clamp on ampmeter. If the panel does not make about 6 amps, it should probably be returned.
Hope this information is useful, any questions please let me know. DD
Any info on where you bought the fan.
Hi, it's on ama zon and other sites, just search for "car radiator fan" and there are multiple sizes available
I want to run a 10w solar panel to a 80w 12v radiator fan. For the solar panel, the Current IMP is .58A. Do you think it is strong enough to power the fan or at least move some air? I was planning to run the fan at around 6 to 7 volts.
@Chris-mp2dw Do you happen to have a 12v brushless DC fan (like a computer fan) available? Maybe 80-120mm size. That's a better match.
A 10w solar panel probably will barely move an 85w 12v car radiator fan. A 50w solar panel is more or less the minimum for a car radiator fan, which would probably hit about 5-6v. Hope this helps, any questions just let me know
Im thinking about doing this in my shed what setup do you recommend doing
Hello, the easiest way is a 50 watt 12v solar panel connected to a 12 inch car radiator fan. It will move some air. No electronics required, but a switch is good (or some way to unplug the fan in winter). This shed ventilation guide may be helpful ua-cam.com/video/Rc4pkF7kWQc/v-deo.html
Hi does it have powerfull suction
Hello, yes it does. This type of fan running at 9-10v is actually pretty scary. At 12-13v, it's seems like too powerful. You can also look at a 24v car radiator fan, I will upload a video about that soon.
Awesome video, just purchased a Renology 50 watt solar panel. Would this be sufficient for the radiator fan? Max Power at STC: 50W
• Optimum Operating Voltage (Vmp): 18.6V
• Open-Circuit Voltage (Voc): 22.3V
• Optimum Operating Current (Imp): 2.69A
• Short-Circuit Current (Isc): 2.94A
@user-wt4hi2xe4m Thank you :) yes this panel will run a 12v car radiator fan, although not super fast; a 24v radiator fan runs much faster (problem is 24v fans generally cost more). I have a similar 50 watt panel - I tested both 12 and 24v fans with it
@@solarpoweredge thank you! I truly appreciate your insight. I just found myself intrigued with solar lately as to help with the upcoming summer in my office shed. Last 2 NorCal summers was brutal and I am hoping to change that this year. I am doing your cheap way, the solar panel and the radiator fan. Appreciate your feedback!! Got you a subscriber!
@user-wt4hi2xe4m Welcome! If you ever want to increase the solar, just put 2 in parallel to double the power. Solar is educational and a lot of fun... wish I could spend more time with it. Thanks for subscribing!
By chance with the radiator fan did you change it from pull to push? If so can you show how to do it?
@user-wt4hi2xe4m Yes, I have a video of how to do this, will upload in a bit
I like your videos. Just some constructive criticism, you repeat yourself alot.
Hi, glad you enjoy them, thanks. Hopefully quality will improve over time.
Do you think a 20 watt panel would move a decent amount of air to keep a chicken coup cool this summer? I already have a 14" new fan. I just don't have a panel large enough to power it.
Hello, I am thinking the fan will at least move some air. Is your fan an 85w car radiator type? If the coop is pretty small and the panel in strong sun, it might at least help. Best way is to just try it out in the sun.
You might also consider a DC brushless fan with a 12V regulator. With only 10-20w to work with, you might actually get more air that way. I will upload another video showing a lot of different options as soon as I can get it done.
@@solarpoweredge it is an automotive electronic 80watt 12v fan, I was considering getting a 30 watt or 20 watt solar panel. Finding one similar to your 35w panel is difficult so I figured that a 20 watt 12v with peak 18.0 volt should be plenty to atheist achieve 1/3 or maybe 1/2 of the fan capacity. What I don't want is to have the fan at full capacity turning the coop into a tornado tunnel! Lol 😆
I see makes sense lol. I think 20w will give the chickens some air, fan should be pretty quiet also
Hey I got an email saying you replied but it's invisible to me. If you look in the URL of the EBY page, there is the letters itm, and then a number - that is the item number. That can be searched easily, maybe just post that here?
Do you have a link for the Ebay panel?