Need help working out space/light etc

hi all,

basically I'm a little stuck i have a airing cupboard which measures...,

67 inches in height
37 inches in depth
27 inches in width

And I'm hoping to run a 600w hps ( not air cooled ) which have sitting around worse case ill buy a 400w bulb ( my ballast will run both ) but would rather the 600w

for extraction i was thinking of buying the following..,

[FONT=&quot]150mm 6" RVK L1 FAN - 600m3/hr
[/FONT][FONT=&quot]150mm 6" PHAT FILTER (500mm long) 765m3/hr

and for intake a RVK 5 inch A1 ( i already have this also )

i been searching for quite some time before posting trying to find some sort of calculation but had no luck mathematics is not a subject im great at,

is this set up possible?, i didn't want to learn the hard way and buy the extraction kit to find it ain't happening

i appreciate any help i get, thanks in advance

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wouldnt use an intake fan...rather just a strong exhaust sucking from a filtered intake hole...with plenty of cool air circulation your 600 should kick butt in that space

Kite High said:

wouldnt use an intake fan...rather just a strong exhaust sucking from a filtered intake hole...with plenty of cool air circulation your 600 should kick butt in that space

Click to expand...

Thanks for the super fast replie mate, my intake would have been coming from the air vent on the outside wall in the bedroom that the cupboard is in sending the air into the cupboard if that makes scene, and the extraction going through a hole i put into ceiling of the cupboard leading to loft and out chimney, how does the way your thinking work and is the extraction system i mentioned good enough?
thanks again

An7h0ny said:

Thanks for the super fast replie mate, my intake would have been coming from the air vent on the outside wall in the bedroom that the cupboard is in sending the air into the cupboard if that makes scene, and the extraction going through a hole i put into ceiling of the cupboard leading to loft and out chimney, how does the way your thinking work and is the extraction system i mentioned good enough?
thanks again

Click to expand...

it seems the flow is enough though not familiar with your terms...at least 365 cfm should do

its just i used to use a 1.2 x 1.2 x 2m tent with the 600w but since moving i haven't got that space anymore hence the cupboard but it just looks half the size of the tent im just in 2 minds wether it wont be overkill

the only concern would be heat...if you can vacate the heat and keep 'em short you r golden

Sounds great to me m8, im planning on doing sog 30 2ltr bottles hempy style due to my restricted space so there be around 24'' tops in height thanks for all your help pal

maybe run both fans on one circuit (exhaust); one as a booster. you could include your light in that circuit. an intake fan just sucks in dust and pests. a passive intake, twice the diameter of exhaust, will supply plenty of air. i make my intakes big, to avoid negative pressures generated by the fan(s).

hi scroglodye, how does this work, my cupboard is pretty much completely sealed with the door shut, where will the filter suck the passive air from? also do you mean join the 6'' and 5'' to the filter both sucking? and how do i include the light my reflector is not a cool tube? thanks for the replie

reflectors can have 6" flanges without being a cool tube, but i guess yours does not. that is a problem.
passive air comes from a hole you open in the cupboard. i put fine screen over my intake.
you need air intake, without creating a light leak. 90 degree bends painted black on the inside, or covered with black landscape fabric, or somethin.'
so............

shitcan the 5", buy the two 6", and yes.........have them both in-line in the same direction. if you don't have 6" flanges on your hood you could rig it. or forget including the light.

i was going to use the 5'' A1 rvk fan for intake and cutting the bottom corner of the cupboard door (opening side of the door so door closes around ducting ) drawing cool air from air vent in bedroom through ducting into cupboard, heres a picture is pretty much exact reflector...

yeah........hard to include that hood into the scheme.
and again, i strongly feel, and there is a somewhat general consensus, that intake fans suck in too much that is bad. the air ducts of your home have dust and bugs. a passive, filtered intake is the norm, imo.

or would work and be cheaper for me to buy a 6'' cooltube reflector and add it to the extraction cycle?

150mm 6" RVK L1 FAN - 600m3/hr
150mm 6" PHAT FILTER (500mm long) 765m3/hr

if this would work what would you recommend i due to the cupboard door to allow passive air into the cupboard, there 2 1 inch holes in the top of the door allready but there at the top of the door was going to cover them up to stop light leaking out into the room

An7h0ny said:

or would work and be cheaper for me to buy a 6'' cooltube reflector and add it to the extraction cycle?

150mm 6" RVK L1 FAN - 600m3/hr
150mm 6" PHAT FILTER (500mm long) 765m3/hr

if this would work what would you recommend i due to the cupboard door to allow passive air into the cupboard, there 2 1 inch holes in the top of the door allready but there at the top of the door was going to cover them up to stop light leaking out into the room

Click to expand...

cool tubes are the best, imo. well worth the investment. and i would cut an 8" hole in side of cab, and put a 8" 90 degree pvc elbow, with ID painted black to absorb light. and i'd cover the outside opening with screen.

ok ill do that then with the cool tube i know its going to cost more to set up and i was trying to sort it without spending to much making use of what i had, but its best to be safe than sorry so all i got to buy is basically the extraction kit and cool tube reflector and a pvc pipe, there's just one more thing the bedroom the cupboard is in is only small like 3x the cupboard would this hinder the passive air coming in? thanks again for all your help i have +rep'd you both that have posted

a small room is easier to cool, if need be. if the room is cool, the cab will be aided in cooling. a small room is a bonus, and you'll still get plenty of air. good luck.