250w HPS Club And Help Guide

chicanoindo

Active Member
Need help I want to join the club I got a grow tent coming in soon 3'x2'x5' and wondering how I can cool it successfully and recommendations on lights would be great
 

stoneslacker

Well-Known Member
Need help I want to join the club I got a grow tent coming in soon 3'x2'x5' and wondering how I can cool it successfully and recommendations on lights would be great
A 6 inch inline fan would probably be sufficient to cool a tent that size with maybe up to 600w hps, if using with a cool tube. If sound and odor are a problem you may have to get creative. A smaller light would require less ventilation in theory but I wish I would have went with a 6 inch instead of 4 inch fan with my 250 hps.
 

RCgrowerman

Active Member
Need help I want to join the club I got a grow tent coming in soon 3'x2'x5' and wondering how I can cool it successfully and recommendations on lights would be great
My tent has similar dimensions and i use a 190cfm squirrel cage blower to suck the hot air away from the bulb and have 2 fans blowing between the canopy and the light.
http://www.hydrofarm.com/product.php?itemid=9871 thats the light i use and its great because you can use MH in veg and HPS in flower without switching anything but the bulb. that space would be good for about 3-4 girls depending on size and your techniques.
 

Galvatron

Well-Known Member
can i get some advice on this possible set up?

250watt hps/mh switchable with digital ballast
tent 2x2x4
exhaust fan 6 inch 160cfm
oscillating fan inside
passive intake

should i add or change anything?
 

10acjed

Active Member
Helping Kalebaiden out this morning and getting the thread back on page one....

@ Galvatron & chicanoindo
I have to say one of the best things I did when building my box was set up an intake fan pushing cool air in. I just grabbed a 10" fan from the hardware store, a 10" - 8" fitting and 8" duct and rigged it up with duct tape aka a growers friend, fan is outside by the closet door and pushes air in right between the light & plants, then the ocselating fan is right next to that. If your tent has a bottom intake I would stick a fan on it. check out my journal there are a couple pics of it.

Then you can use the inline fan to exhaust and set up a carbon filter if you need it. Im using ona, works wonders. Inside I have a dixie cup with water in it and just add a tbsp or two in every couple days and switch the water, and then I have an ona block outside. All I smell is ona when the box has been closed.
Only thing I regret is not getting a tent, 36 x 36 would be perfect, however I have an extra 12" or so of space inside now, and it is nice to have the extra room to work.


Did some more minor LST today, they really shot up after switching to 12/12 & HPS. Overall they are about 18" from soil now, there are a bunch of tops tho so if they keep stretching I will probably harvest the tops and give the lower parts an extra week or two if they look to fluffy. For a first time experimental grow I think I will be satisfied ;)

You can kinda catch my 4th in the corner, some sativa regs, hasnt got in the way yet so I am letting her go...
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Little budshot
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Used some steaks to spread them a little bit..
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Finished product this am... I told them to stop growing up and start filling in.. Hope they listened...
IMG_1227.jpg
 

10acjed

Active Member
And I thought Kaya was a beast, whats the monster called in the last pic?
That last pic are my 3 babies, the main reason we started this grow. Got a z and found one little nug with 3 mature seeds. Im guessing hermie. But I have 3 under the light, they are kind of intertwined at this point. If you look at the first pic its the two inside, then the third was out being tied down a bit. Then I took the overhead pic of all three, and the red headed step child in the corner (no offense to my fellow red heads)

He tells me its Bruce Banner (OG Kush x Strawberry Diesel), so thats all I have to go on. He has given me 3 different types all called the same thing, so I think he just makes it up at times, they are similar, but different so maybe they are a couple different phenos. If you have met the type you understand, a 30 min conversation and I am more confused than when we started LOL..

I saw him a week or so back and got another batch of the same stuff I got the seeds from, its some good smoke. Great strong flavor on exhale, fuely, strong smell as well, I open the tupperware with about 5 g in it and the room smells. Strong head & body high, mellows after time. Have to say its a personal favorite smoke..
 

Kalebaiden

Well-Known Member
I've never been a fan of any of the diesels. they all hurt my throat. Let me know if your banner has the diesel taste. I'm thinking of trying it.
 

10acjed

Active Member
I've never been a fan of any of the diesels. they all hurt my throat. Let me know if your banner has the diesel taste. I'm thinking of trying it.
I have only gotten one deisel, and the flavor of that was not comparable to the bruce. The bruce has a more unique taste, not in a bad way either its the type of stuff you take a toke of and say mmmm. Not harsh or hard on the throat at all... I call it a fuely taste, but its really just a different taste then what I am use to. Not skunky or earthy, more of an exotic. Sorry Im bad at the details.
From what I read on it the bruce is a Kush dominant in flavor. I have yet to get any kush so I cant say..

I will let you know how these come out..
 

chicanoindo

Active Member
My tent has similar dimensions and i use a 190cfm squirrel cage blower to suck the hot air away from the bulb and have 2 fans blowing between the canopy and the light.
http://www.hydrofarm.com/product.php?itemid=9871 thats the light i use and its great because you can use MH in veg and HPS in flower without switching anything but the bulb. that space would be good for about 3-4 girls depending on size and your techniques.
Definitely going to get that light veg and bloom all in one
 

chicanoindo

Active Member
A 6 inch inline fan would probably be sufficient to cool a tent that size with maybe up to 600w hps, if using with a cool tube. If sound and odor are a problem you may have to get creative. A smaller light would require less ventilation in theory but I wish I would have went with a 6 inch instead of 4 inch fan with my 250 hps.
I hope you can help me out again if my closet were the tent will be stays at 82F can I throw my exhaust back into the closet or will it eventually get hot?
 

kinetic

Well-Known Member
S7300043.jpgS7300049.jpg

250W goodness...
Note: The High Life can is for illustrative purposes only, while not a beer snob I do support local breweries, and enjoy a Brother Thelonius from time to time...
 

10acjed

Active Member
I couldn't wait any longer, I just hit the flip switch. I'll start counting from the day sex is shown.
Funny, I am currently researching and planning my next grow. Nirvana's Wonder Woman in the fridge ready to be germinated....

Definitely going to get that light veg and bloom all in one
I love mine. I would have to look at the box I either have that one or the SS2 switchable, they are the same..

I actually have to rotate mine, I have it long ways in my box so the sides are facing the 2' area, front/back seems to have about a 2' light area while the sides put out better light, I can see it being effective in a 2' x 3' space, 3' x 3' would be pushing it as the light would need to be 6" off the tops to spread that far horizontally.

Here is an idea for cooling, total cost about 25 - 30$ tops... I know you are using a tent, but the idea is the same, just pull air from the coolest possible spot and push it in. You can feel the temp change when you walk in the closet, but the air coming in is cool. I have the same fan in the top pushing out, and then another fan pushing hot air out the door. Its not stealthy or quiet, so if your looking for that try the fan inside your tent and a vent to the door...
IMG_0940.jpgIMG_0944.jpg
 

kinetic

Well-Known Member
OH MY!!! Very nice looking kola you have there.... Had to leave it in the quote....
Thanks, I donate the popcorn bud to someone that needs it which is why I keep it. Let more go this time than normal, what a pain in the ass to trim!
 

stoneslacker

Well-Known Member
I hope you can help me out again if my closet were the tent will be stays at 82F can I throw my exhaust back into the closet or will it eventually get hot?
If you can, try to lower the room temp to around 72F. If not you will most likely have to exhaust the vented air away from the grow area, as this will raise overall room temps depending on your room size. I originally vented my grow box into the room it is located in and it was fine when room temps were 72 or so_Once warmer weather hit and room temps approached 80+, cooling my box became an ongoing problem.

I ended up venting my exhaust into an adjoining storage closet and this helped alot.
 

Kalebaiden

Well-Known Member
My garden runs hot, there's nothing I can do short of a remodel of the layout.

KEY POINTS:

Ventilation is absolutely necessary. Do not skimp on it.
Keep the ballast out of the grow area
Have a vented hood or make something work like a vented hood

Since I run hot, all my plants will be stunted and my yield will be much less than I hoped.
 
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