Barrel GrowSet

With barrel, I could only grow small plants and only few, but with growbox, I can grow much more!

I think I could build cooltube vertically (with extra glass around the light bulb, that the plants doesn't burn if they are near the light) with thermostat vent (if the growroom gets too hot, it turn in and sucks the hot air out!), then one more down the box for fresh air and one more for plants!

Will grow in 1m2 place, thats like 3,3sqfeet (or a bit smaller place) with one 250W HPS (light for 0,9m2 with 35 000 lumens)

Found good vent for getting hot air out (def would use with thermostat control)

They have sizes like 223m3/h, if my box dimensions are H ~1.20m, W 1.00m, L 1.00m, that could be enough to suck hot air? Or I need 365m3/h?


Then I could put mylar on ceiling and a bit on the sides (about 1/3 of the box) for perfect light reflection from the lightbulb, then I can skip the reflector building! Or I need reflector for max light usage?

This could be it


Looks like great growbox, I think I will build same thing, only with cooltube + wide reflector.

P.S.

One last question, about temperature, how hot it could get if I use one 250WHPS light (in my box sizes)?
And could 2 PC vents (44.71 CFM) on top of the box, cool the temp. to the right one?