horizontally vertical

[JamestheJiant]

Hey dudes and dudettes,

So I'm building a 2' deep 3' wide and 4' 8" high cab. Inside I plan on having two flower areas about 18" wide 24" deep and 24" high for messing around with short sogs and scrogs. These two areas will be powered by one Galaxy 250 watt set up with a flip flop to power both lights. One light will be vertically oriented 250 watt hps and have a cool tube, and the other will be a horizontal 250 watt mh in an air cooled reflector. In the rest of the space I'm going to have a bud drying chamber and a mother chamber.

Okay so I've only grown with floro tubes before and I'm doing pretty well, but I think I'd like to try my hand with hps and mh lighting. So here are my questions:

Is my 24" x 18" x 24" space too small for an air cooled 250 watt light?

And because only one light is going to be on at a time, about how much airflow do I need to cool a 250 watt?

I'll post up some drawings when I get them done so it is easier to picture.

I would rather have two flowering areas because this flip flop idea really intrigues me.

And I am going to be exchanging air with a 6" 449 CFM vortex inline fan, but not using this fan to cool the lights.

Ciao
James the Jiant

 

[blAsia]

If this is your first time at hps/mh, why don't you just stick to one flowering room and one veg. if you are good at vegging under FLs, just do that and then flower with hps. I don't know how you are flip flopping, but, until you get the hang of bigger lights, less work may be better... switch a little at a time, especially in a small space--i know from experience how to screw up a good thing, by f'ing with too many things at once.

Your fan seems plenty big enough. You could exhaust the room and the lights on a y adapter with that size fan.

just my thoughts... good luck.

 

[JamestheJiant]

Hey blAsia,
You make a good point, that I should keep it simple. I think what I might do is build my set up with two, and then just use one to begin with then work into two.

The y duct is a good idea, but I wonder if it would pull more air through the lights because there would be less restriction. An i've got a 100 or so cfm blower from my last box that I intended on using for the lights.

Here is a really rough version of what i'm planning on:




Edit: that box with the stars in it is my bud dryer... I figured stars would be appropriate.

 

[blAsia]

Looks good. You can always use a damper to control air flow.

I don't think 250 would be too hot if you have it well ventilated. It will radiate some heat in the CT, as the glass will heat up a bit and also radiate, but again, with cool air being sucked in from some passive inlets, you may be fine.

And I am going to be exchanging air with a 6" 449 CFM vortex inline fan, but not using this fan to cool the lights.
With that big fan in a small closet you could probably pull through each room and then through the lights, then out. Bring in as much air with that fan as possible. Start your passives in the veg, then suck it through every chamber.

2x2x1.5 is pretty small. You could possibly do a 150...

In terms of 250 with hood, once you mount the light, you will only have about 16", then you need some space between the light and girls...when all said and done you will have to start flowering them at 6" and scrog set at about 8". Keep them low.


You may want to check out the 150 club and see what ideas/problems you can find.

http://www.icmag.com/ic/showthread.php?t=20729&highlight=150+watt

this was a scrog i had about 2 years ago... man, makes me want to do it agin. anyway, you can see there is about 5" above those plants before the screen, but they were grown under 2 400s. Just train them asap.






take it easy

 

[JamestheJiant]

With that 400 how high did they get when you scrogged 'em?

I've worked out so that I've got 6" tall space at the top of the lower flower area that will be sealed in with glass, so I can make my own reflector, that way I still have the whole 24" for the flowering area, even though i know about 8" of it will be take up by pots.

 

[JamestheJiant]

Nice scrog by the way, how large was your area and what was your harvest... if you don't mind me asking.

 

[blAsia]

Area was about 5x5x5 (useable)... it was in an attic, that is why the roof slants.

Total yield??? Don't know. I don't weigh my shit usually. Here is a pic of the one large plant when finished trimming.

You can see that the small branches are pointing to the side... which was up through the scrog when they were growing. How high you see is how high they got.



Good luck.