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I need some help,comments whatever

Discussion in 'Grow Room Design/Setup' started by aussiegrower, Dec 10, 2006.

  1. #1 aussiegrower, Dec 10, 2006
    well here goes
    i have a 1000mh and a cabinet that sizes upto
    1770hx 690w x495d
    my main prob im gonna have is cooling my idea is to have a bathroom exhaust fan up top an osc fan for circling air and for intake i hoping that 3 or 4 cpu fans on either side would do the trick...
    i know this is a big light for such a small space but it was all i could get
    any1 has any ideas suggestions,info,comments please leave them
    will post pic when i start fitting out
     
  2. #2 aussiegrower, Dec 10, 2006
    pic of the closet i have to work with
     

    Attached Files:

  3. #3 DrBudGreengenes, Dec 10, 2006
    A 1000 Watt MH in that space will require a piece of UL approved glass between the light and the plants and movement of some serious air thru the top chamber to keep it cool.....it you can ...........goood luck Man
     
  4. #4 aussiegrower, Dec 10, 2006
    hmm what does the UL mean...would a piece of perspex do the same thing?..
    what size space would you suggest for a light this size
     
  5. #5 aussiegrower, Dec 11, 2006
    ok guys ive been looking at fans and noticed there power measured in diff way
    for instance CFM and 1fan im lookin at is a 14.5cm inline at 55l/s is this a powerful fan or not cheers
     
  6. #6 DrBudGreengenes, Dec 12, 2006
    UL=Underwriters Laboratorys....an outfit that revues the safety of everything sold in the USA
    The glass needs to be TEMPERED Glass for safety ...cuz its gonna get hot Really Hot....when I used 1000's I used 2 on a light balancer 1 HPS and 1 MH in a 12'x12' room.........I would say 5'x5' for a 1000
     
  7. #7 aussiegrower, Dec 13, 2006
    ok been trying to workout wich wat to hang light (angle)
    on my globe the marking are
    powerarc osram
    1000w
    mi 1000/u
    does this mean its universal and i can hang it horizontal rather then hanging down cheers
     
  8. #8 BigBloomer, Dec 13, 2006


    You will need a very powerful exhaust fan/blower most fans aren't nearly powerful enough for what you need. You will want one closer to at least 300 CFM probably more.

    CFM x 0.4719 = L/s


    55 L/s / .04719 = 116.55 CFM



    Would recommend smaller light, could produce the same amount if done efficiently. 250w-400w
     
  9. #9 aussiegrower, Dec 13, 2006
    ok well heres a fan that im thinking of grabbin the guy reckons its 290 cfm so i geuss ill get em and hope for the best
    [​IMG]
     
  10. #10 Flow_DOC_Duece, Dec 13, 2006
    dude i think you're gonna need a better fan.

    this is my fan. 250Cfm

    [​IMG]

    I got a 400w HPS/MH conversion bulb. Got that runnin through a cooltube with the fan pullin and i still have temps at 95F. waiting on a tornado fan to come in.


    [​IMG]

    [​IMG]
     
  11. #11 Funkopath, Dec 14, 2006
    thats insane man ....you can do the same job & even more proper ..with 2 60 cm duo fluoro tubes :eek::confused::confused_2:
     
  12. #12 BigBloomer, Dec 14, 2006
    That CPU fan that you show in no where near 250 CFM, more like 60-80 CFM. You may want to look into squirrel cage blowers (Dayton Blowers) or centrifugal fans(Vortex, tornado's etc.). They do cost more but those CPU fans won't work well as exhaust fans by themselves. They do work well for intake fans though, with a good exhaust fan.
     
  13. #13 aussiegrower, Dec 14, 2006
    that was plan to use a 2 or 3 of these fans as intakes with a bathroom exhaust fan...
    now looking for maybe a 400 hps
    any1 from victoria australia wanna swap?
     
  14. #14 -mu, Dec 14, 2006
    If the room is sealed, you do not need an intake fan; air will be sucked in the intake vents (just holes) by the basic laws of physics. In fact, adding an intake fan is more likely to complicate things, as well as restrict your exhaust fan (unless they are perfectly matched), lowering your overall air-flow. Why bother?

    Get a good exhaust fan, and all is well.

    -mu
     

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