How exactly does a cool tube work?

Is it just a fan blowing hot air from a bulb out of the room or is there more to it? Can i just punch a hole in my closet wall to the outside and run a cooling tube that blows directly outside?

Thanks

this should help...

GypsyBush said:

this should help...

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this

EXCEPT


it is much more efficient to PULL air than it is to push it, so in other words, you would put the fan right before the carbon filter and after the lights

Using the fans to BLOW cold air is better than having it SUCK HOT AIR...

The blades will work more efficiently and the fan motor will last longer by running cooler...

and the same EXACT amount of air that goes in comes out... period...

So I disagree with your statement 100%...

I would love to hear your reasoning....

What i say is shit

What i say is shit

WOW! I explained why I believe what I believe...

But you don't..... hmmm...

No back for your so called "facts"...

funny..

What i say is shit

i do not have any scientific facts or data to fall back on


HOWEVER


lets take a poll and see what the rest of RIU thinks

What i say is shit

hdkjs you win...


I suck...

Keep doing what you are doing.. your plants look real good...

But drop the attitude...

I speak FROM ACTUAL: GROWING EXPERIENCE.. not something I read in the computer...

But go with what you know....

Just don't try to talk me down... it won't work...

What i say is shit

i remember reading something about someone that actually tested the suck vs. pull controversy... apparently that person found that sucking works a bit better. can't imagine by a whole lot though.

i'm running cooltubes... but i don't recommend them as i used to. i'd just go for a rectangular reflector with a glass enclosed bottom. Cooltubes are pretty crappy for light distribution. This is somewhat offset by the fact that they cool better than anything else so you can position the light as close as you want... but i'd rather have a better footprint under the light.

Cooltubes allow for maybe a decent 3 1/2' x 4 1/2' footprint while some of the others like the Magnum XXXL might give a nice 4 1/2' by 5 1/2' footprint. Though i don't have any personal experience with the Magnum.

To answer the Op's question though, generally you are pulling air from outside the room through ducting and putting it directly back outside again. But you could also draw air from the room itself and exhaust that out as a means of further improving air flow through the room. Ie; put a hole in the floor for passive air intake... and exhaust the cooltube with no intake ducting to an exhaust vent at the top of the room or through the ceiling.

Hi Gypsy
.

aside from creating a hijack situation on the thread, you have typed 2x as much as if you just gave me your reasons....lol...

But it's ok...

I know what I know... and you go with what you know...

oh hi DG!

DaGambler said:

Cooltubes are pretty crappy for light distribution. This is somewhat offset by the fact that they cool better than anything else so you can position the light as close as you want... but i'd rather have a better footprint under the light.
.

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I really liked the cooltube when I was running the tent (small enclosed space)... better cooling...


but when I went to the "room", I began to favor the reflectors as well... better light spread...

What i say is shit

hgkdehs said:

Ive never used a cooltube.

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Listen to DaGambler

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DG is the SHIIIIT!!!!

And since Gypsy is one of those ppl who cant seem to research for himself,

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May I recommend you do a little research on ME before you ASSUME anything about ME...lol...

I have read TONS!!!!

And my journals here seem to be pretty popular...

My last one generated over 3300 posts and almost 45k views...

I guess I fooled them all eh?!?!

fans lose efficiency as they push. Better to pull. I would explain it, but I dont have the complete knowledge myself.

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Again you waste more time and effort than if you just gave us the INFO...

I gave you facts... why not counter them with a REASON-ABLE argument instead of "caus they said so"...

Its easier to understand these things when u have a degree in engineering, as my uncle totally explained it to me scientifically once, but i was too stoned to completely understand.

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Well what can I say... maybe it is too complicated for you...

Grow On Brother....

What i say is shit

In my set up I like the cooltube, I've mostley pushed air. I'm using a low cfm fan atm so I added one pulling also. But I don't use a filter anymore, just vent outside.

hgkdehs said:

so u base ur "knowledge" on

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I base my knowledge on the Grows I have completed and the Reefer I have harvested... not on "hear say"...

But I said it before and will say it again...

Go with what you know...