DIY fan

[Alison_Kristina]

In order to keep the air moving in the Culti-Cave when the door is almost closed, we came up with a very cheap but brilliant idea.



We bought a couple of 12 inch PC fans and wired them to a 12Volt DC plug top power supply mains adapter, we've got a few lying around from old equipment, so the only cost was the fans. We even had some bell wire lying around which we've used to wire it up with. It's a 2 amp power supply, and each fan takes about .25 of an amp, so there's power enough for four, but we found just two was enough to create a good airflow (actually, one is enough, but we've put one each side).

Ali.

[peter6530]

Hi Alison Kristina,
Like the idea - believe those fans shift a lot of air. Would be good where I am in Western Australia in winter (0 - 15 deg C) when air movement is still reqired but don't want to open up big vents. Like the idea that parts are easy to get and inexpensive to run.

[stu9000]

I know its an old thread but I found this interesting.
PC fans are two a penny.

I didnt have a battery floating around though so I found this solar panel for a tenner.
Yingli 5w 12v framed solar pv panel at Swithenbanks Alternative Energy | Grid Tie Inverters | Solar Photovoltaic

I think most fans are 12v and 3.5w so the 5w rating of the panel should be fine.

Seems to my untrained eye that even if it runs slower on a cloudy day this system should be a good way to suck air out of one end. Hopefully this will reduce mouldy soggy pots!