New grow box

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HerbieSmith

Well-Known Member
I am making my first grow box(primarily to grow from seed to size and then plant outdoors)

SO far there are 2 12" CFLs mounted under the shelf shown in pic.

I am planning to put a fan on top left/out and bottom right/in...

For anyone who has done this before please leave me any feedback... problems or suggestions you see i could use to omprove the setup!

THANKS!
 

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Green Monster

Green Monster

Well-Known Member
nice little setup you got there, i wish i had something even like that for me. but im resorting to a desk lamp with a CFL and a closet shelf =(
 
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HerbieSmith

Well-Known Member
Green Monster said:
nice little setup you got there, i wish i had something even like that for me. but im resorting to a desk lamp with a CFL and a closet shelf =(
Click to expand...

i tried it on my closet shelf once and everything died on me... I thougt it was because the heat was all collecting there.

Btw I got the cabinet for free. Check at apt complex dupsters, thrift shops, and on craigslist and maybe you'll find a sweet deal.
 
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HerbieSmith

Well-Known Member
HerbieSmith said:
i tried it on my closet shelf once and everything died on me... I thougt it was because the heat was all collecting there.

Btw I got the cabinet for free. Check at apt complex dupsters, thrift shops, and on craigslist and maybe you'll find a sweet deal.
Click to expand...
ok i installed the fan in top left and just left a hole for now in the bottom right. Any suggestions?
 

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Green Monster

Green Monster

Well-Known Member
HerbieSmith said:
i tried it on my closet shelf once and everything died on me... I thougt it was because the heat was all collecting there.

Btw I got the cabinet for free. Check at apt complex dupsters, thrift shops, and on craigslist and maybe you'll find a sweet deal.
Click to expand...
oh yeah , wow that is true, i never thought of looking in thoes places. ahaha thanks

and the fan would be a nice thing to have to vent. it a bit
 
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bellows

Active Member
First time post, This is what i did, but it would prolly be better to mount your exhaust fan higher and your fresh air intake lower, remember hot air rises.
I built a Plexi-glass box with thin wood frame and plexi-glass top its about 2x2x3 1/2 I have four two foot T-5's and a 42 watt cfl and one 3 1/2" muffin fan (that i picked up at frys for 15 bucks) blowing in the side of the box at about mid level. the T-5s are I guess 2000 lumens apiece and 24 watts, the cfl is like 2700 lumens, I covered two sides with black trash bags. I got one them battery powered humidity/ temperature guages and through it in there around mid-level the temperature and humidity fluctuates from 75-78 F and around 58- 65 H most of the time it stays at 75F and 65H. Just recently I was bitten by the bug so i went out and got a 150 watt HPS. I put the thing on the top of the box and turned it on it started to deform the 1/4" thick plexi-glass. No shit dummy. so i cut a hole in the top and it sits perfectly, very minimal light escapes. Them temperature now rises to 92 degrees constant and 45% humidity, i have one more muffin fan that i will mount on the top to exhaust the heat. every night a couple mins before the lights go out i spray them down with some seltzer water, these muffin fans move about 80 to 100 cfm i think. ill mount it tomorrow and let you know how it gos
 
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bellows

Active Member
well that exhaust fan i added only dropped the temp 2 degrees and the humidity raised about 3%. maybe i can rig up a cool tube, that might help some.
 
beginningbotanist420

beginningbotanist420

Well-Known Member
HerbieSmith said:
I am making my first grow box(primarily to grow from seed to size and then plant outdoors)

SO far there are 2 12" CFLs mounted under the shelf shown in pic.

I am planning to put a fan on top left/out and bottom right/in...

For anyone who has done this before please leave me any feedback... problems or suggestions you see i could use to omprove the setup!

THANKS!
Click to expand...
You're gonna need a ton more light. You need at least another 40-50 watts of CFL to be efficient...
 
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bellows

Active Member
HerbieSmith said:
omg i almost broke my neck trying to look at he second pic...cool setup man. why does it have glass around it?
Click to expand...
Well first off i wanted an indoor greenhouse, something that would be cosmetically pleasing to the eye so i could put it in the front room or where ever and i also wanted to be able to control the atmosphere within it. everything was working perfectly until i added the 150 watt hps. I have to do some major mods to the top to get that problem ironed out.
or maybe ill just take it out and add a couple more 100 watt cfls
 
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HerbieSmith

Well-Known Member
bellows said:
Well first off i wanted an indoor greenhouse, something that would be cosmetically pleasing to the eye so i could put it in the front room or where ever and i also wanted to be able to control the atmosphere within it. everything was working perfectly until i added the 150 watt hps. I have to do some major mods to the top to get that problem ironed out.
or maybe ill just take it out and add a couple more 100 watt cfls
Click to expand...
ya i hear ya. I was growing with a 100w hps before this setup and it made a 400 sq ft room HOT(until i setup the exhaust system...you've got to have a fan pulling heat away)

Same situatsion here now. I just added two more cfl tubes... 4 total now. and when i came home the temp was 98 plus.... So I turned the exhaust on and now with both fans it keep temp 85ish.. with everything closed up. Trying to be discreet with mine.

A am almost ready to go outdoors with all the hassle of controls ...lol. but i wanna get htis working right so that i can veg plants and strengthen them to be ready for the outdoors.

Any further ideas appreciated. also on the ywllowing leaves! pftt..
 

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HerbieSmith

Well-Known Member
Nee further feedback on my setup made some notes on ideas to lower temp etc Does anyone see a better spot/way to exhaust and make an intake? Does an intake require a fan? Thanks in advance
 

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