Hey all! So glad I found this subreddit.
Has anyone here used 12V DC computer fans for greenhouse circulation or looked into them as an option?
My father in has a small greenhouse and circulation has been his biggest issue. He tried a few different 12V marine / RV fans, but they all seemed to fail within about 6 months.
Out of frustration we experimented with a small circulation setup using 120mm 12V DC computer fans (12 of them). Each fan is around 0.3A at 12V, so low power and cheap.
They’re mounted in 3D printed brackets.
So far they’ve done a surprisingly good job evening out humidity and reducing stagnant air pockets, and they’ve already lasted longer than the marine gear did too, which got me thinking…
Has anyone else tried PC fans long term?
And why does it seem so hard to find decent 12V greenhouse gear?
Thanks all, good to be here
by mawrTRON
1 Comment
I have a 12 volt Dometic fan in a van that runs daily off a solar bank. It’s an older fan so maybe they don’t make them like they used to, but I think off 12 volts it draws somewhere around 8, 12, and 15 amps at the three speed levels. Here is a similar model (looks newer than the one I have): https://www.ebay.com/itm/306607925444