PV (solar) Direct Fan
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- Опубликовано: 13 окт 2024
- Get help with a project! practicalprepp...
This is a brushless DC motorized fan. It can be used for a variety of purposes.
www.practicalp...
The F20 Plus is our newest offering for heavy duty greenhouse and attic ventilation applications.
A 20 inch diameter blade set offers greater surface area to move a higher volume of air than seen with the 16 inch model. The robust, brushless motor is well-suited for solar-direct applicaitons, where the simple combination of fan and solar panel are all that is needed to start moving some air!
Backwoods is now manufacturing, here in the USA, this brushless 20 inch, 12/24 volt ventilation fan. Our fan is designed to meet your needs every season in the greenhouse or attic install. Intended for use with 12 volt or 24 volt solar panels as low as 30 watts up to 250 watts and can be used in conjunction with 24 volt battery banks. It will also perform with 300 watt and 72 cell modules with open circuit voltages of 44 volts. The F20-PLUS is protected from moderate over-voltage and thermal fluctuations.
The Super Fan has been tested through a variety of panel and voltage configurations. We recommend three configurations for “small”, “medium”, and “large” applications. “Small”: all 12 volt panels; a 30 watt panel will provide an airflow of about 9 mph (estimated 1600 cuft/min). “Medium”: a 60 watt panel will produce up to 13 mph (estimated 2300 cuft/min). “Large”: a 135 watt panel will hit 17+ mph (estimated 3000 cuft/min) and faster.
The best thing about our new DC Super Fan is the brushless motor. Motor brush replacements were common on previous fans especially if they were run at high RPM’s. With no brushes the F20-PLUS will outperform other fans. Solve your circulation issue with this solar direct solution! Be aware, the motor has a built-in 5 minute start delay to prevent stress on the motor during extremely low light conditions. If disconnected and re-connected to power, there will be a delay before the blades start spinning again.
The F20-PLUS is not intended for use with 12 volt battery banks or AC power of any kind.
Performance Chart
2 Year Warranty from purchase date. All parts are replaceable and can be ordered individually as needed.
Dimensions: 24.125” X 24.125” X 5.5”
Ship Weight: 20 lbs
Actual Weight: 15 lbs
See more at: www.backwoodsso...
I make hot water with PV direct for most of my hot water needs. No pipes no pumps no fuss. Love it. God Bless
+yankey4 please elaborate or send a link
im2501
+yankey4 Thank you my friend
*Well-made, delivered quickly, and easy to install with **Fastly.Cool** . I may be imagining it, but it seems quieter than the 14 year-old unit that I pulled out. Of course it was noisy at the end due to failed bearings, so hard to compare. :)*
One of those would make an excellent exhaust fan for my shipping container project. The larger fan would definitely get rid of my condensation problems and help cool the darn thing off!
That’s what I’m looking for to circulate air in my sunroom/ living room to keep the windows dry and rooms warmer. 👍🏻👍🏻
Beats two fans running all day long. Hydro is one of my top pet peeves 👎🏻
That thing hauls ars !!!
Excellent video, thank you 🙏
Congrats on making Mojo's Top Ten Survival Channels List!
Really digging the new intro.
alternatives - but pricey. Thank you for the video
another great post! (afraid my barn cat would jump into that set up)
I was looking at getting a low speed fan moving some air under my upcoming 8kWp solar panel installation. The panels will be the roof itself, in other words, they are exposed on both sides. As it gets into the 90s here in the summer, the panels can get quite hot, despite being open underneath also. The fan in this video is noisy AND expensive, there must be a cheaper and more silent way to move the air. I am not looking at making a local storm, just ensuring the air is moving a bit to keep the panels a bit cooler. The installation is nearly flat, as the sun is straight overhead in summer at solar noon, so there isn't that natural convection going on which would be the case if there had been a bigger incline. Local regulation also means the top height is limited to about 8 feet so that also limits the tilt.
Your ideas a great, so there must be some better solution to this issue. Thank you
I will endure the heat until these come way down in price, 440 is too much for that fan. Its a great idea that I been toying with. Perhaps we should try our hands at building one for comparison... A competition of sorts!?
Thanks for sharing. You need to explain your remarks regarding using attic fans with ac running because it doesnt make sense. Lower attic temperatures, as close to ambient as possible, and well ventillated, is a good thing and has no detrimental effect on ac use.
Wow! If I had the money this would be mine!
Where did you buy that from how did you acquire that
i got a car dc fan and its super powerful with a 250 solar panel
yes there are a lot of great Automotive fans out there.
O the options you could have with that setup! Nice.
Thanks for sharing. Great fan! Having a brushless motor and nice all-metal construction, it should last a long time and it seems to be operating on the very little power.
I would have expected to pay about $300 for this quality, so there is a $140 premium at work here for the new technology.
I guess it would be easy to put screen on it to keep birds from flying into it.
cool but sounds very loud to put up In my screened porch. A quite fun will be great so we can relax in the patio.
Just a quick question, can you use solar (panel) direct on DC computer fans? Are there any issues with doing so? I'm looking to move only perhaps 200 cu. ft. a minute through a PVC pipe.
That would be great on a greenhouse!
I like it! Might could use a vacuum plastic moulding machine at backwoods solar.
you need a BEC, I use them on brushless rc planes, it would help control your speed and not blow out the motor when you have lots of sunlight.
I like the new intro clip.
Any chance it is waterproof? Would be great on a greenhouse as long as the rain didn't hurt it. Even better if it had a set of louvers.
How are these $440 20" fans different than the 20" fans on ElectricFanEngineering for $120?
Thank You for your videos . I am hoping to set up a system for my off the grid basement . I have 3 12 volt brush less fans I am hoping to run off my 50 watt solar panel thru my 10A charge controller . Will they run at full speed with direct sunlight ?
Would be very interested in seeing direct solar water heating. Unless I'm missing it, I don't see anything on your site under "Hot Water".
Where do you get one of these fans? They are very hard to find.
Hey there, are you using any sort of controller attached to the panel or is it straight to the fan?
I think that most belt drive exhaust fans run at that speed because here in Birmingham Alabama there is a mall here called Brookwood Mall that has 4 large belt drive exhaust fans on the east side that blow in instead of out 2 on the bottom and 2 on the top that spin at that same rpm actually it’s a little bit faster then that it just looks like it’s spinning that slow like either a 50” or 60” or 84” or something probably like at y’all as me and I’m 5’7” I think and 4 on the west side in the same pattern 2 on top and 2 on bottom and one fast spinning direct drive one in the back blowing up and the same for the east side
Have to get some before the #$%& hits it. going to your site now.
Hi, thanks for this video is the idea that was looking for, but I would like to know if this can operate as fan attic? another question, how many Watts is the panel, how many volts and amps ?. fan with how many volts and amps does it work, and the last question: is needed a fan or air extractor? because I think a fan does not work to expel hot air from the attic, or Yes ?, thanks in advance
If you added a supper capacitor set into it how long do you think it would run after the sun went down?
is there a video on how you add the on/off switch ? great share thank you :)
Are these still available anywhere?
great channel!!!
could you do some more direct stuff its very interesting.
When I saw the price I thought it must include a solar panel. Ouch, too much for my fan budget.
I was going to say just get a vintage belt drive homart fan like I have off of eBay but they are in the 55$ range if so all the way up to the 100$ range and more
Get a car radiator fan they can be found in many sizes cheap
Is it just helping dry wood?
is there damage from low voltage?....like a skilsaw and too many extension cords and you burn out the saw
can nesting be wired to run forward and backward????
That is awesome!
im workin on a same system in my green house
Good setup but the price of the fan is a bit prohibitive for a lot of people.
I'd hook up half a dozen DC muffin fans before spending that kind of money on a single motor fan. If one or two muffin fans quit, there's a few more to continue on.
Can this fan run with a 15 watt solar panel?
Does America use green/yellow earth cable now?
No not yet. It is allowed by the National Electric Code but it is not required. Solid green is sufficient. It does not need the tracer.
1 have TWO 1994 Cadillac Condenser/Radiator fans that will do more than that. Go to the junk yard and purchase one or two from large vehicles.
good stuff..
love for u sir
Hmmm $440 for a fan let me think about that .........
+grandpaseed Not a whole lot less for a brush less DC motor that is not meant to be run off direct solar.
+connly33 you are right hard to find good dc motors for cheap any more
hay thanks for fan
I desperately need your advice! Everyone, feel free to advise me as well.
I had 2 men working on the solar system in van.
They replaced the batteries with a LiFePO4 12.8V 78Ah and a 12.8V 35Ah 448Wh.
They installed a Pure Sine Wave Inverter 12V Input, Power 2500W, Output 120V.
I also have a Victron Smart Solar Charge Controller, MPPT 100/30.
When the electrician hooked up everything sparks began flying, the system got hot, and he has given up trying to set it up. I have no solar power now in my van, which is my home.
Please help! I can't waste any more money and I have no idea what I need. Thank you.
it is neat I have to say not cheap but neat
Is there a way to store power beside battery's?
+scarmenl sure pump water to a higher level - heat something to later extract heat there are ways
grandpaseed
Good points thank you.
where do u get a fan like this?
+Sue Ashcraft
www.practicalpreppers.com/online-shop/shelter
Can't you just use a car radiator fan there really power full and cheap
+reece evmez I did exactly that in a garden shed. The shed came with two 12x12" vents, and the radiator fan fit perfectly. I run it directly off a 100 watt panel. Kind of sounds like a jet taxiing on the runway when a cloud passes over.
+frenchopotamus did it work well ? And was it PC direct ?
Yep, works great for a small space. It's not going to cool a garage or anything. You can always add more fans, though.
It's PV-direct. I got a 100W Renogy panel for $130 and 12" radiator fan for $25 off of Amazon. I added a switch to the circuit so it can be turned off in the winter, and an automotive fuse to protect it.
+frenchopotamus sounds like you got it pretty well set up, I'm glad some one has tried this and it worked before I go out and try this.
My Buick radiator fan runs off a 90 Watt solar panel. I put it in my gable vent and it has run for 3+ years with no supervision, not even a shut off switch. It does not run full speed like when I ran it on a car battery but there is a good amount of hot air coming out when you sit in front of it. I can tell when its running as there is a slight hum heard in the upstairs bathroom. The 120vac fan with a thermostat does not come on except for on the hottest summer afternoons. Thumbs up for Buick.
Good to dry clothes food paintings
SURE IS LOUD!!!
like direct water pumps.
$440 ?????
This fan would for farmer IE chicken and pigs buildings.
nice fan just cost to much
if you live in a HOT place and spend 20sollars a month on airconditioning. and then maintenance. you're looking at running a pricey utility you pay for over time.
with this. you could hook up to a cool space like an attic or a closed shady pouch and you have a once off payment and better air conditioning.
it costs imagination more than money.
I think you need to take some time and go to inplix website to learn how to make it.