400w in small homebox tent?

synapse

synapse

Active Member
The homebox website says that their small tent is suitable for 250w. Anyone have a guess why that is? I'm hoping to squeeze one into my attic so I can use my 400w hps this winter. Heat shouldn't be much of a problem since it gets cold up there and I am venting the light. My hope is that the tent will provide enough insulation to keep the temps where they need to be.

Anyone put a 400w in their roughly 36"x20"x64" tent?
 
dhhbomb

dhhbomb

Well-Known Member
i cant imagine a problem if temps arent a problem and u can fit it in the tent u should be fine they say there is such a thing as too much light but i dont think that will push it over the edge
 
smilin'highs

smilin'highs

Active Member
you should get some good ventilation in there or else your plants will bake. Like at least a hole at the top with a fan blowing out cuz thatll get hot.
 
GypsyBush

GypsyBush

Well-Known Member
synapse said:
The homebox website says that their small tent is suitable for 250w. Anyone have a guess why that is? I'm hoping to squeeze one into my attic so I can use my 400w hps this winter. Heat shouldn't be much of a problem since it gets cold up there and I am venting the light. My hope is that the tent will provide enough insulation to keep the temps where they need to be.

Anyone put a 400w in their roughly 36"x20"x64" tent?
Click to expand...
My home made tent is 36"W x 20"D x 60" H...

I have a 600 watt HPS in a cooltube with a 170 CFM fan dedicated to the light...

2 circulating fans and an exhaust fan keep the tops of the plants at 75F when the 600 HPS is 10 inches away ...

Here is a pic...

Let me know if you have any other questions...

Cheers..

Gypsy...:joint::peace:


​
 
B

budightman

Active Member
I have the homebox s, but have not yet set it up for a grow. I will have a 4 in 80 cfm inline fan for intake. A eurohood from htg with one end open for free air and one end attached to a centrifugal blower running out the top into a carbon filter. Inside ill have a oscillating fan on top of the plants. Hopefully that should do the trick. Also, it gets quite cold in the winter where I am. So I think we have very similar grows here synapse.
 
Backwoodz

Backwoodz

Active Member
I got the homebox XS and i run a 400W MH in it just for vegging, although you have it in your attic it will still get pretty HOT even if you got the HomeBox S. What i do to bring down the temps is use a Inline fan sucking the air out of the box out the house , also have a oscillating fan running aswell. It brings my temps to about 28C to 31C, without the inline fan i reach temps to about 36C...Test it out!!
 
synapse

synapse

Active Member
Thanks y'all! GypsyBush, thanks for postin that pic, it definitely put me at ease that my 400w will be no problem in this amount of space. Though the homebox s is a bit too tall for my space, I think I may try to make it work anyway.
 
aerogrowerman

aerogrowerman

Well-Known Member
synapse said:
Thanks y'all! GypsyBush, thanks for postin that pic, it definitely put me at ease that my 400w will be no problem in this amount of space. Though the homebox s is a bit too tall for my space, I think I may try to make it work anyway.
Click to expand...

let me know how it works, im suppose to be in a attic grow with 400w hps and a homebox
 
S

Secret Grower

Active Member
Works for me just fine, my temps with a cool-tube with a 140 cfm fan is about 74 degrees. If your in a cold climate like me then you probably will be more worried about heating than cooling. I have a passive intake system. I am in hydro so I use an aquarium heater in the res, which seems to keep the heat just fine.
 
aerogrowerman

aerogrowerman

Well-Known Member
Secret Grower said:
Works for me just fine, my temps with a cool-tube with a 140 cfm fan is about 74 degrees. If your in a cold climate like me then you probably will be more worried about heating than cooling. I have a passive intake system. I am in hydro so I use an aquarium heater in the res, which seems to keep the heat just fine.
Click to expand...
ya my friend attic is freezing, so he wants to get the homebox l, what else do i need that doesn't come with it? besides lights
 
Jonus

Jonus

Well-Known Member
Another thing you can do, especially if your grow box is in the attic where its an unusual place for you to be going every hour to check the temporatures, is invest in one of those cheapo wireless weather stations from the radioshack that has a wireless remote sensor like this one.
Wireless Weather Forecaster - RadioShack.com

They transmit on radio freq so no harm to your plants.
Pop the sensor in your grow box and have the main station somewhere visible where you can watch the temp and humidity all day and night.
 
Jonus

Jonus

Well-Known Member
Mine is about one foot to the left of my computer monitor reading 25.6c and 47% hum...:eyesmoke:
 
supdro

supdro

Well-Known Member
If your tent is 36x20x 64 let me know what you use to cool your tent. I just bought a new one and I have the 400 hps cool tube with a 250 watt vortex and i am still at 90 degrees. does it matter if it is the reflective material or not???
 
619SixFour

619SixFour

Well-Known Member
It should be fine but I would definitely go with the cool tube or coolhood types because you would want to get the hot air out of the tent. In my link you will see how I put two 6 inch flanges on my HomeBox S. It keeps the temps in the tent at a perfect 73-76 F. Good luck. Subscribed.
 
GypsyBush

GypsyBush

Well-Known Member
and just so you guys know...

at another site.. theses fans are what the newbs are using instead of the crappy in duct fans this site's newbs seem to want to use...

check it out... they are loud, but they move air and are not expensive...

the guys at the other place are installing a flange on the intake side of the fan and running duct to it.. super simple... I'll see if I can find the actual pics of the mod....

:bigjoint:



Ha!

Found them... love google..

















 
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