Space limits for 1000wMh/HPS

Bdoo

Active Member
Does anyone have any idea what the smallest sq footage I could get away with in a cab grow using a 1000w Mh/HPS? I need it small for stealth purposes and with a 1000w light I am sure there is a fine line between small and too small. Could someone please throw some dimesions at me. Thank you.

Doo
 

F4t4LShot

Well-Known Member
Well im using a 1000w in a 4x4x8 and its doing great. I was told i really needed 2000w. Cause weed grows best at like 40-50w per sqft. So you divide your watts by your square foot. (Find square feet by multiplying width and length of your room. The more watts per sqft the better!
 

gogrow

confused
I think the real question is how are you going to keep a small area cool enough with a 1000wat?
I am currently facing the same issue. I found a 1000w at work the other day,(talked em out of it:mrgreen:) i have a 400w on the way, but was advised that the 1000 would def. be worth the extra effort. My light is an industrial flood light so it needs to be rewired and some sort of kickass cooling/ventilation system to keep it cool bc the light has self contained ballast hence it cant be vented conventionally. My idea was to place some sort of clear partition between my light and my grow. the light could still get through and i could cool/vent the top light portion seperately. dont really know if this is a realistic plan or not, but its what ive came up with so far. will this work?
 

sk3tch3

Well-Known Member
if you can keep that thing cool you can put it just qabout anywhere, check out the BOG (barrel of green)
 

F4t4LShot

Well-Known Member
Well, when we first got the 1000w hung we were using one of those cheap "wing" hoods. The temp shot up around 110!!! So, we went and bought a Sun System air cooled hood with a 6" fan for intake/outtake and a glass shield. On one side of the hood you hook up duct that runs out of the room to fresh air, on the other side you hook up duct>run that to the intake side of your fan>then on the other side of the fan (exhaust) you hook up more duct then run that outside of your room. All this does is pull air from outside, through the hood over the light, then blows it outside of the room. Since the hook has a piece of glass, all the heat from the light stays in the hood and gets sucked out. With the air cooled hood you can put your hand on the glass. For high wattage HPS and MD in a small area an air cooled hood is a must. Its the only way you can do it...the ONLY WAY. Invest the money and get a good air cooled hood and good fan and duct work.

Outside<duct>oneside of hood===other side of hood>duct>intake fan===other side of fan (exhaust)>duct>outside...Hope that kinda makes sense.
 

MajesticWhelk

Well-Known Member
Yeah, I am actually going to be growing in a HydroHut with a 1000w MH/HPS with an air-cooled reflector. The reflector will have its own exhaust fan and ducting and I will also have a separate air exchange fan w/ carbon filter.

Will this be sufficient cooling? (I live in a fairly cold and humid area of Northern Cali) What other issues do you see me running into?

Sorry for the hijack.
 

F4t4LShot

Well-Known Member
If the reflector has a built in fan and all that, it should be made to where it is efficient enough. All you can do is try. I think you will be alright though. Good luck and show us some pics and let us know how it goes
 
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