Home made inline fan

Did a search and didn't find mention of this anywhere. So I spent way too much time at wally world this week looking for ideas. I need to make an exhaust duct w fan to cool my light. I'm going to experiment with building a small wooden box to fight tightly around a high speed mini (4in) all metal desk fan (pretty strong little fan for $6) with a 4inch exhaust connection on each side of the box. They also had a 10in $12 vortex fan that I was tempted to pick up and try the same thing with. I'm assuming it would need to push the air thru (if it works at all) the light, doesn't seem like it would draw air effectively. Anyone try this?

it will be more efficient if it is pulling the air i believe

Check out our grow log, which is in my sig. We rigged some cheap ventilation up, ended up upgrading the fan though to an oscillating version from wal-mart that says "blizzard" on it. Obviously we don't have it oscillating though....But anyways just check it out, and i think on the 3rd page is where we did it.

Edit: Nope 2nd page.

inline fans are only $20 at any home depot....no need to "DIY".

And you should pull air out not push air in with the cooltube.

Unique, haven't run across those yet. Any spec's handy? Nroth, how well did it move air, it looks like the 10in fan I saw at walmart.

Unique, found the fans on home depot site. 4in has really weak out put and poor reviews. The $33 six inch fan fan has a max out put of 240cfm which might be all right.

i heard there noisy as a motha

homerdog said:

Unique, found the fans on home depot site. 4in has really weak out put and poor reviews. The $33 six inch fan fan has a max out put of 240cfm which might be all right.

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i havew that fan running right beside me right now. just for ventilation in my room though

I dont have any specs handy, i do know the one without the power cord attached was cheaper than any i found online. The cord is only a few bucks plus electric nuts and some electric tape and you are good to go.

With my setup i have it pulling the air into the attic. just dremel a 6"hole into the ceiling and stick it up there. I also wrapped a nylon stocking around the end so nothing falls into the fan (insultation or something).
Works great and keeps it about 15 degrees cooler.

And the are quite....less noise than a box fan by far.