Grow Closet Plans

Hi all,

I started another thread with my first draft of plans, but then realized I had it in the wrong section and it was crap!!!! Ooops!!

Anyways, I took the advice I was given and have now moved onto my second plan.

The whole area is 1m x .40cm x 2.5m (WidthXDepthXHeight)

Split into 2 areas, both for vegging & flowering 3 plants. 6 in total.
150W HPS/MH in each
Cool Light intake & exhaust fans (from attic)
Separate Intake & exhaust fans for each area (from attic)
6'' ducting
Oscillating fan in each.
2x 5-10gallon water tanks for drip system (not on the plan but will be in the space at the bottom)

I'm thinking to put all the electrics/timers & ballasts in the space to the right, under the ducting running outside the rooms. I thought the right would be best as it the exhaust side and wont matter if the ducting gets hotter. (Is that right?)

errmmmm.. I think thats it

I do have some questions though..

Can you use one 150w bulb for both vegging & flowering?? That will save me buying 2types for each room. (HPS/MH)

Are by fans in the right place? Pushing & Pulling.

What cfm fans do you think will be enough for each room?? (1mx1mx40cm)

What about scrubbers?? Where can i fit those? I keep seeing the cyclinder carbon filters but i cant work out how I would use one. I dont have enough space for one in each room..
Can I get a flat type that I can put before the exhaust fans??

I think thats it.. lol

Sorry for all the questions but WHO else can I ask?? lol

Drawing skills suck ass I know..

Now that I look at the plans again..

I think my intake fans for the cool light should be on the right, sucking the cool air passed the bulb and out.

I've found some 120mm PC fans. 74-149cfm, 10-20dB.

Do you think they will work for my intakes & exhaust for each room?? (1mx1mx40cm) 150HPS

C'mon guys.. Im not feeling the love on this one. Soon I'm gonna start thinking my idea sucks and scrap it for a new one.

What I gather from the drawing is that you have a sealed light with its own venting. Make sure you pull air through the light as opposed to pushing it. As for the rooms exhaust/intake, I cannot tell if you have just an intake or the exhaust as well, but its better to have an exhaust fan and a passive intake than just an intake fan. You could put the exhaust for the room in the left nook, as there would be space for a carbon filter there (or not?). Those PC fans will work as long as the rated CFM is enough for your room size.

Envizion said:

What I gather from the drawing is that you have a sealed light with its own venting. Make sure you pull air through the light as opposed to pushing it. As for the rooms exhaust/intake, I cannot tell if you have just an intake or the exhaust as well, but its better to have an exhaust fan and a passive intake than just an intake fan. You could put the exhaust for the room in the left nook, as there would be space for a carbon filter there (or not?). Those PC fans will work as long as the rated CFM is enough for your room size.

Click to expand...

Hi and thanks for the input. I was getting rather lonely on here.

Sorry about the bad drawing. It was a bit of a rush job, and will probably change again.

You're correct about the lights. Sealed cool tube with fan pulling the air through the light from the attic. That will work right??

I have a exhaust fan at the top of each section, parallel with the exhaust for the light.
Pardon my stupidity but what do you mean by passive intake as apposed to intake fan??
Because my only air supply has to come from the attic, I figured I could run some ducting from the attic to the bottom of each section (same ducting tube) with a fan pulling the fresh air in.
My attic had no insulation at all, so I'm hoping the air & temp will be good enough.

I have space(nook) on both the left and right side, which is where i plan to run all my ducting. I had the left side for my intakes & the right for exhaust.

So are you saying I could have a carbon filter there?? Don't they have to suck the stank air thru the sides of the cylinder and not the ends??

I worked out the cubic ft of each section to be 14ft3, so with a 149cfm intake & exhaust for each I should be set right??

Sorry about the long post. I planned on keeping it short but the mind starts wondering and you've written a page.

lol

the attic air in summer could be to hot so check it out. Then comes winter cold air this could be best time to grow with less stress about temps.

Check out my little set up. Its not much, but its real steezie.

https://www.rollitup.org/grow-room-design-setup/330160-crastas-1st-grow-op-grow.html

fatfarmer said:

the attic air in summer could be to hot so check it out. Then comes winter cold air this could be best time to grow with less stress about temps.

Click to expand...

Yeah, i was concerned about the hot summer air in the attic. In the direct sun it can easily hit 35C. Winter months will defo be my best time to harvest and stock up for the summer.

I'm already working on my next setup, dropping the 2nd 150w HPS/MH and going with CFL's for a veggie cab and leaving just one independent flower cab.

Question.....
What watt HPS will be enough to maximise the floor area 3.5ft x 1.5ft, 4plants in a row?? 250w enough?? If i centre the light running the length of the cab, will enough lumens hit the outside plants??

If that makes any sense.....

3.5 * 1.5 = 5.25

250/ 5.25 = 47.61 ( we will say 48 )

you really want 50 to have that perfect number...but depending on how you use reflector and your walls ( meaning having the walls cover correctly ) you should do fine...you can always stick a cfl or two in the mix

Thanks. That sounds good to me.

I actually rounded up to 3.5 x 1.5

Its actually 3.2 x 1.3 = 4.16

so 250/4.16 = 60 ... Thats good right??

I plan on covering the walls will aluminum foil or flat white paint..... I cant get my hands on mylar...

So do you think i will need 250w of CFL's in the veggie cab (same dimensions) for 4 plants?

Cheers for the help. Im writing all this down. New plans coming soon.

sounds great with those numbers .... flat white paint ( easier to clean ) avoid foil..

that's plenty for veggie

Me again..

So I've made some changes to the plan.

I think its self explanitory.

Have I got my heights correct for each cab?? 90cm for Veg & 130cm for Flowering. Im guessing I will move the plants from veg to flower, when they reach about 30-40cm.

Am I right in thinking they will double in size, when they hit the flowering cab??

I will be starting to source the parts soon, so any advice now will be invaluable.

Peace, IstTimer

is your intake going to be pulling in air from the same room that your exhaust is in? this might cause an issue with heat. is there anyway you could run a line to make the exhaust go outside?

its really hard to stop growing during the summer months just because of a heat problem, i had the same issue until i found a way to feed the air conditioning from my house into my grow room as the intake

edit: i also dont think that the pc fans will be enough to cool the setup, you should consider something like this
http://www.icmag.com/ic/showthread.php?t=29341 cost a little more but well worth it

sorry for being anal about cooling but thats the one thing that always gets me in trouble

Thanks for the comments agent.

Yes, both the intake and exhaust will be fed to and from the attic. My attic is pretty large though, like 140sqm, no insulation. I have a concrete ceiling on my house, then a pitched roof and tiles. I plan on breaking thru the concrete and running the ducting up into the attic space.

I am always very concerned about heat. It can reach high 30's in summer, but drops to below 10 in winter. I don't want to stop growing during summer but if I have to, I have to.

I have found a mini desktop a/c, which I might have to buy to cool the heat issues but space is a bit of a factor.

I am going to the home store this weekend and will have a look at what's on offer in terms of fans/blowers. Thanks for the stanley link blower. So will that just sit inside the grow area itself?? Where would the fresh air feed from??

Another problem Im facing, is I dont want to put any fans/blowers in the attic. The access is hard and I wont be able to get up there very often.

I've done a test on the Temp.

I bought a cheapo temp gauge to test the ambient temp in the room I plan on growing in. (Not the grow closet itself but the room the closet will be in)

I got these readings...... 83F/28C!!!!! Ouch!!! and this is without any lights!! Am I right in thinking 75F is the ideal temp??

If the temp outside/in the attic is higher, am I kidding myself thinking I'll be able to drop that with fans alone and no air-con??

Geeezzzzz, who said this indoor growing was easy lol