Quote Originally Posted by WaZ
The 80mm fans I mentioned are ~50 CFM each.
Fancy schmanzy computer fans?

Ohh... nice. Pretty.
No.

Again, they are not designed for that.
Do as you please from now on.

Quote Originally Posted by WaZ
Could something like a Peltier on intake cool the air inside the box sufficiently to negate the heat buildup from exhaust outside the box?
Ok, dude... computer hardware has very limited use on cannabis growing.
Peltier thingies will do jack-crap against 400 watts of High INTENSITY Discharge bulbs.

In addition... I do not understand your question.
Will it cool the intake air?
Sure.
Enough?
No.
Negate the heat build-up from exhaust outside the box?
What?
Ummm... what?

I fail to comprehend this setup.

Quote Originally Posted by WaZ
How about a U piece of duct with water at the bottom so that the hot air is pulled through, perhaps with a system to cycle the water?
You know, I would say 'no', but... go for it.
I doubt it will work... but hey, there is only one way to find out.

In this second idea of yours, I also fail to comprehend it.
What's the point of the water/U-duct?
What's the point of the water cycling?
Like a radiator?
Get a radiator then. They have been around for over 200 years. They are pretty much nailed down by now.

Best of luck to you buddy,

-turtle420
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