3x3x6

[qpgreen]

:confused:if i choose to build a bloombox of these proportions what is the largest light/cooltube setup for highest yeild

[Abyss]

about 450 watts will give you 50 watts per SqFt. Which would be best.
Good luck.

Much Love,
Abyss

[LiveGreenLoveLife]

I agree with abyss. if you try to go 600w your going to need an 8 inch Air-cooled reflector and a kickass fan to boot, I would go 400-450w

[Zandor]

If there is AC involved and of course then 600 is no problem;

but if you have a proper blower to push out the hot air or even configured as I have said many times with a "Y" and you pull the air through the light and the other pulling air through from the room to cool instead of AC then an 8" would be good for both in a small room like that.

You would not want to use a cool tube you would want something more like a medium to large air cooled hood. The only thing you can grow in that setup is a sea of green or a screen of green either way you need to flood the light.

Now if heat is too much then just switch to 450 or 400 and that will work as well just not have the same depth of penetration as the 600 does, or the heat.

Peace

Z

P.S. My eyes are that bad even when you can blind fold me with dental floss you don't need to write anything that large.

[Dr. Meshugana]

I know that this maybe asking you to repeat yourself Zandor, but I'm constructing a cab and ventilation is a great concern of mine.

So, your saying install a "Y" connector to a blower fan one branch leading through the air cooled hood and out the other side continuing out into the room. The second branch enters directly into the grow chamber.

How critical is it to have a precise amount of air being ducted into the chamber? Is it possible to have too much air flow in a chamber. does the math of the dimensions of the chamber : length x depth x width require an absolute adherence to the the classic formula?

Can you have too much air circulating in a chamber?

Should a method be devised to evenly distribute the air being "pushed" into the chamber? Even a small chamber of 6x3x2?

Can a passive exhaust system be used in a set up like this or is a active system worth the effort, and again how much adherance to the formula when selecting the size of the exhaust fan?

I have several used 245 CFM Dayton squirrel cage fans does buying a new axial fan for exhaust seem necessary?

BTW could we please get spell checker?

[Oldbay]

When you fat finger your words, they are red lines under the misspelled word. Right click on it, and you will get the options to change it.

[qpgreen]

hes bound to have been lurking and seen my mess i cal anglishhh
lmfdao

qpg

[Dr. Meshugana]

When you fat finger your words, they are red lines under the misspelled word. Right click on it, and you will get the options to change it.
OKAY.....A BETTER SPELL CHECKER

[qpgreen]

:D we will try to keep up with them this time...swiss cheese brain farts...lol
qpg

If there is AC involved and of course then 600 is no problem;

but if you have a proper blower to push out the hot air or even configured as I have said many times with a "Y" and you pull the air through the light and the other pulling air through from the room to cool instead of AC then an 8" would be good for both in a small room like that.

You would not want to use a cool tube you would want something more like a medium to large air cooled hood. The only thing you can grow in that setup is a sea of green or a screen of green either way you need to flood the light.

Now if heat is too much then just switch to 450 or 400 and that will work as well just not have the same depth of penetration as the 600 does, or the heat.

Peace

Z

P.S. My eyes are that bad even when you can blind fold me with dental floss you don't need to write anything that large.

[Zandor]

I know that this maybe asking you to repeat yourself Zandor, but I'm constructing a cab and ventilation is a great concern of mine.

So, your saying install a "Y" connector to a blower fan one branch leading through the air cooled hood and out the other side continuing out into the room. The second branch enters directly into the grow chamber.

How critical is it to have a precise amount of air being ducted into the chamber? Is it possible to have too much air flow in a chamber. does the math of the dimensions of the chamber : length x depth x width require an absolute adherence to the the classic formula?

Can you have too much air circulating in a chamber?

Should a method be devised to evenly distribute the air being "pushed" into the chamber? Even a small chamber of 6x3x2?

Can a passive exhaust system be used in a set up like this or is a active system worth the effort, and again how much adherance to the formula when selecting the size of the exhaust fan?

I have several used 245 CFM Dayton squirrel cage fans does buying a new axial fan for exhaust seem necessary?

BTW could we please get spell checker?

As I see some hostility in some of your posts nobody has answered your questions so I will try my best to just answer questions.


.............._ to light____[light]_____ air in
fan -{}-<|_ exhaust out........|
air in.......|..........................|


|= wall
ignor the dots I needed them to hold it together

Like that if this design works out.

you are dividing the air through the active fan. You pull air though your sealed hood with one leg and the other leg is your closet exhaust. so it's run is shorter. Placing a nylon stocking over the vent is good to keep bugs out while the fan is off and keep leafs from being sucked though your fan too.

You don't want to use more pressure then you need but a rule of thumb is enough cfm to take the air out of you chamber in 5 min or less. With a setup like this divide the cfm by 2 and you are close enough. You can tweak the "Y" too with dampers if you need to.

Too much airflow sure you can hurt plants; to much of anything can harm plants. You don't want to bend them over with too much air and on the other hand you need to exchange the air on your can in 5 min or less. How you do that is up to you; remember you are setting up the environment for your plants to thrive.

The 245 are fine your grow cab is only 36 cub feet so the apx 122 cfm will be fine I would think.

As for buying the axial fan's I would, they are quieter to run and push more air but that is always up to you. If noise is an issue that is.

A spell checker?

There was one from day one (ok maybe day 2) it's the little blue check with the ABC in black in the upper right hand corner of the input box for your message; you just missed it is all.

Now I remember an email with this same question and I wanted to save it for a show? Things happen and it was forgotten but I did reply later that week personally. If that was your email that is, I try to answer everyone but I am human. Lately work has demanded so much of my time and the need to pay the bills plus not feeling well for the past week I have not been around as much as I would like. I am a medical user for a reason as well and from time to time I just need to rest.

There are many friends who are moderators here to answer questions; sorry on one got to answer your question but we are an all volunteer group here of just like minded friends.

Great question though I enjoyed answering it.

[Sir Stangle]

Your box sounds great. you should post some pictures when you can! id love to see. I have a 2x2x5 box goin on with a 250w HPS light. Im going to make a thread soon enough.

COOL!