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Ok, I was thinking of doing something with the back of a grow box to act as a heat exchanger (aluminum) to avoid requiring a venting fan that would break down. I have another idea - I'm toying with the idea instead of making a sort of narrow box using aluminum screen (think like a screen door...

aquarium air pumps come in a variet of sizes - the ones that are used to power bubble wants etc that blow air. They have an intake in the unit itself, and they output through a nozzle, that you attach to flexible plastic hosing (which could easily be adapted to PVC piping) or use long coils of...

I was reading a post about someone using a fish pump to blow air out of their grow cab - which got me thinking. Say that air pump was attached to a long tube (say a half inch in diameter, and 3 feet long, coiled up. Now say that coil of tube was filled with actiavted carbon powder... If it...

Hi, thanks for the input. I guess you're right that aluminum works both ways...but I'm guessing that it will try to reach an equlibrium, and will always try to get to a temperature in between inside and outside the box. So if the external temperature is, say 80 degrees, and the inside of the...

ok, saying foil does not transfer heat - I seriously hope you were high when you wrote that... the reason it's cool to the touch seconds after is that it is so good at transferring heat it cools to room temperature in seconds (and in fact will cool your food quickly). You'r basically talking...

haha ok, this is crazy - first post and answers about everything I didn't ask.

I doubt those metal cabinets are made of aluminum - at that thickness it would cost a fortune - and you could pick up an 8 foot cabinet with 1 hand. It is a good heat sink, that's why if you look into your computer you can see grey things with spikes on them, on top of all the processors that...

Yea I know, I wasn't asking about that, I was asking if anyone knew about aluminum, or had any experience, ideas, or knew what types might suit my purpose.

I was wondering if anyone here has knowledge of the heat transfer capabilities of aluminum. Say for example, if one side of a grow box was a sheet of aluminum instead of wood - I'm thinking of avoiding exhaust fans for cooling and letting a sheet of aluminum roughly equal to 1/4 of a grow box...