Need help working out space/light etc

**An7h0ny** · 05-31-2012, 01:13 PM

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..,

150mm 6" RVK L1 FAN - 600m3/hr
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

**Kite High** · 05-31-2012, 01:15 PM

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

**An7h0ny** · 05-31-2012, 01:27 PM

Originally Posted by Kite High

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

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

**Kite High** · 05-31-2012, 02:29 PM

Originally Posted by An7h0ny

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

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

**An7h0ny** · 05-31-2012, 02:36 PM

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

**Kite High** · 05-31-2012, 04:05 PM

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

**An7h0ny** · 06-01-2012, 02:04 AM

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

**scroglodyte** · 06-01-2012, 02:12 AM

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).

**An7h0ny** · 06-01-2012, 02:49 AM

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

**scroglodyte** · 06-01-2012, 02:58 AM

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............

Need help working out space/light etc

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