Grow Room Design

I'm trying to come up with ideas for a new setup in my coset. To begin my closet is 2.5 ft deep, 3 ft wide, and about 9 ft high. Before I was cfl's in the closet, but now I want to switch to a 600 HPS. I have removed the closet door and used a sheet of mylar as the new door. I'm thinking of cutting a whole at the top of the door with either a inline fan or a regular fan for exhaust, and a hole at the bottom of the door for intake.

Will this work or will the light get too hot and overpower this small space? Any other ideas appreciated.

I would realy consider to invest the money in a 400W cool tube and a good 5" ventilaion/filter .. wont regret it (unless you live at the northpole ?)

I got a 600W HPS in a space as wide and high as yours .. but 3x as long (so 3x your room M3)

and I got a nice 6" ventilation (no cool tube tho) and Im in scandinavia so our temps is`t that high .. and Im strugeling with +85F at hot summer days I have 88F ..

and I even got a 5" tube from the outdoors with a small ventilation as half of my intake to my grow room ..

so in other word .. a 600W will get pretty hot .. I wouldnt like it in a space like that unless I had AC and cool tube .. or I would for sure choose a 400W cool tube or a 250W ..

if I had the money and only needed one lamp .. for a space like that .. I would save up and buy a nice .. a bit expensive .. digital MH/HPS ballast that can run boath 400W and 600W and boath MH and HPS bulbs (Veg/flowering) with a nice cool tube/refletor and a good ventilation with speed controle ..

So will a 600 watt not work at all in there?

600 will work but either way you'll want a air cooled hood running up to that top exhaust with an inline fan. would need to be a 6 inch fan at least.

sure a 600W can work .. but a bit over kill if you ask me ..

and the more light you get .. you pay a price calld heat and its no funn to strugle with .. belive me ..

I would mouch rather buy a nice 400W .. and use the money to get one with a digital ballast I can place out side so heat is even less ..
and one that can run boath MH and HPS ... and a cool tube and a nice ventilation/filter to fit ..

bigger is not allways better .. specialy not in a small place .. a 600W HPS can warm up a normal 2 room appartment !

p.s.

alternativ is to invest in a good LED fixture (a named brand) then you dont have to worry to mouch about heat and big ventilations and cool tubes aso.

I guess end price can be pretty similar ..
the LED and some small PC ventilations might still cost a bit more but power use is also a lot less .. not only in light but also in ventilations aso.

Ok thanks for the advice guys. I don't have a cooltube but my hood has the ventilation openings on both ends. If I were to attach ducting with an inline fan from the light to my exhaust opening in the door, will that be sufficient exhaust alone?

most likely not with that much light

i have about the same room space as you and thought about a bunch of cfls or a 250w hps do to heat issues..im not sure 250hps would work but you would think it would be ideal for that size space..
anyone more experienced care to share????

hey bud ok first question is do you know what temp your room is getting to now ?