20kw grow room...How would you set it up?

redi jedi

Well-Known Member
So if you had the resources to build a room on this scale, how would you set it up? The only guiding parameters being the room must produce a crop every two months and the plant count kept to a minimum...preferably under 100 plants in flower. I welcome all ideas.
 

slomoking13

Well-Known Member
3 rooms. A veg room with 4-1k MH lights running 18/6 and 2 flower room rooms with 8-1k HPS in each and 8 total ballasts on a flip box to keep them running 24/7 split between the rooms. I would veg for a little over a month and stagger the flower rooms so that one is about 30-35 days ahead of the other. You would harvest one flower room about every month or a little more (that's accounting for a one month veg and 60-70 day flower). That gives you another 7-10 days to dry and a few weeks to cure before your 2 month deadline. You should pull anywhere from 8-16 lbs of dried and cured product every two months easily. If you want your plant numbers below 100 then you would ideally have 33 in veg, 33 just beginning to flower, and 33 a month into flower once the rooms have been filled (it will take at least a couple months to get everything filled up). As for medium, i prefer organic soil.. but hydroponic would be easier to maintain on a larger scale like this. I'd rather put in a little extra work and go with the soil because i spend a lot of time looking at the plants anyways and might as well hand water/inspect them while im at it.. plus you don't have to spend the time mixing up a bunch of nutrients and draining/refilling things all the time. You would only have to make a compost tea every couple weeks which is really easy. As for other equipment, i would have passive air ducting between the two rooms for one large intake fan and one exhaust with large carbon scrubbers for each room with the ducting connected for one exhaust leaving the grow area. To deal with heat from the lights, i would just buy reflectors with a/c fittings and have one fan drawing air from outside the room, through all of the lights, and back out of the room. There's a lot more detail, but this is essentially what i would do.
 

redi jedi

Well-Known Member
3 rooms. A veg room with 4-1k MH lights running 18/6 and 2 flower room rooms with 8-1k HPS in each and 8 total ballasts on a flip box to keep them running 24/7 split between the rooms. I would veg for a little over a month and stagger the flower rooms so that one is about 30-35 days ahead of the other. You would harvest one flower room about every month or a little more (that's accounting for a one month veg and 60-70 day flower). That gives you another 7-10 days to dry and a few weeks to cure before your 2 month deadline. You should pull anywhere from 8-16 lbs of dried and cured product every two months easily. If you want your plant numbers below 100 then you would ideally have 33 in veg, 33 just beginning to flower, and 33 a month into flower once the rooms have been filled (it will take at least a couple months to get everything filled up). As for medium, i prefer organic soil.. but hydroponic would be easier to maintain on a larger scale like this. I'd rather put in a little extra work and go with the soil because i spend a lot of time looking at the plants anyways and might as well hand water/inspect them while im at it.. plus you don't have to spend the time mixing up a bunch of nutrients and draining/refilling things all the time. You would only have to make a compost tea every couple weeks which is really easy. As for other equipment, i would have passive air ducting between the two rooms for one large intake fan and one exhaust with large carbon scrubbers for each room with the ducting connected for one exhaust leaving the grow area. To deal with heat from the lights, i would just buy reflectors with a/c fittings and have one fan drawing air from outside the room, through all of the lights, and back out of the room. There's a lot more detail, but this is essentially what i would do.
I like the staggered flowering idea...what about CO2 addition?
 

slomoking13

Well-Known Member
If you want co2, then your best off doing sealed flower rooms. You would need a generator/tank and controller for each room (run co2 only when the lights are on). Large charcoal filters for each room just to filter the air. If you want to go truly sealed and not vent your lights then i would also recommend a dual zone split air conditioner for temperature control as well because 8k worth of lights in a sealed off area will get you over 100 degrees pretty easily and you'll want to stay in the 80's even with co2. Best bet would be to seal the rooms and vent the lights making sure the ducting on them is sealed well so a bunch of stinky air and co2 isn't leaking out through holes around the glass, fittings, or small holes in the ducting. I also forgot to mention dehumidifiers... those will be key as well, especially with higher temps and co2 (it's a recipe for high humidity). Having said that, you might as well throw in a small sulfur burner for each room while you're at it for extra protection from powdery mildew.
 

webjamn

Active Member
The three room idea is great. I went with water cooled lights. (I copied liquid lumens) Water is far more efficient at heat exchange than air. It makes everything else much easier to work with. Much less noise and heat from the rooms. Slomoking has all the info you really need though. Just thought I would add my two cents.. have fun
 

slomoking13

Well-Known Member
It's definately a lot of space... between all three rooms, it would most likely take between 600 and 800 square feet.
 

timmychan

Active Member
It's definately a lot of space... between all three rooms, it would most likely take between 600 and 800 square feet.
Not even that much space I did tha math already for a big op like that and you would need 16 sq feet per 1000w (any more and it wouldnt be used to its full potential), thats 128 sqaure feet per flowering room and 64 sq feet for tha veg so 320 sq feet of plant space total, but you'll need space to move around so lets say about 400 sq feet total.

Still a lot of space and if I had that kinda of money for that kinda of op, I would attain house used only for growing so as not to harm your family or what not in case of a raid or robbery. And I would make sure said house has at least 2 rooms that are 12x12 for flowering and any room smaller than that can be ur veg room.

Any type of hydroponics would be best for this kind of grow, An Aeroponic system Like tha aquamist would be your best bet if that'll fit in tha budget too as its very fkin expensive,

and a ebb & flow would be as easy to maintain as tha aquamist with less yeild but cheaper price,

Bubblebuckets would give you more of a personal relationship with ur plants like soil only they will grow faster than tha dirt and give you a chance to train them (Scrog or LST),

I would recommend trainin em at least a lil bit if you gotta keep ur plant numbers down with that amount of light, at least FIM em a couple times or put a screen up.

With tha right ventilation, nutes, and strain, you would be rollin big homie;)

-Timmy:D
 

timmychan

Active Member
Pull a minimum of 8 pounds a month wit that kind of light, once you get ur shit dialed in ur lookin at 15 to 20 pounds a month easy with 8000w in each flower room.

A risky investment, but as they say, RISK = PROFIT, more risk more profit.

Stealth as could be would be tha key, get a generator for most of them lights so tha light company doesnt snitch you out, and a lot of carbon filters so tha neighbors dont start snitchin. Keep tha yard maintained, hire a landscaping company to keep it lookin nice for you if your lazy, although I wouldnt recommend havin more people than necessary around all that crop.

And tha most important thing would be is to STFU about it,, only let you, yourself, and you know about it unless you have investors funding it or partners actually helping you in tha house growing with you, I ALSO wouldnt recommend that as you cant control other peoples mouths, only your own. So unless you've known this person most of your life I would not grow with anybody but me, myself, and I.

Make sure your wife or babymama is as down as you are (NO GIRLFRIENDS, she has to be either married or have your kids and living with you for her to know about it) and knows tha consequences of her telling people and make sure you dont get her mad and keep that good dick in her, and she wont snitch you out. You could try not telling her about it but she'll probably alrady know somethin fishy is up and that aint good for tha relationship, and I wouldnt recommend no wife and kids cuz it gets lonely being so secritive aout something, you gotta let someone know about it, and a down ass bitch is tha only one i would trust, but dont get her involved with tha Actual growing so if U do get busted someone will be able to care of tha kids. Just tell her to tell tha cops she had no idea what you did all day.

Do this and you are straight my friend;);)

-Timmy
 

NoDrama

Well-Known Member
Pull a minimum

Make sure your wife or babymama is as down as you are (NO GIRLFRIENDS, she has to be either married or have your kids and living with you for her to know about it) and knows tha consequences of her telling people and make sure you dont get her mad and keep that good dick in her, and she wont snitch you out. You could try not telling her about it but she'll probably alrady know somethin fishy is up and that aint good for tha relationship, and I wouldnt recommend no wife and kids cuz it gets lonely being so secritive aout something, you gotta let someone know about it, and a down ass bitch is tha only one i would trust, but dont get her involved with tha Actual growing so if U do get busted someone will be able to care of tha kids. Just tell her to tell tha cops she had no idea what you did all day.

Do this and you are straight my friend;);)

-Timmy
Thats pretty good advice, especially making sure she is getting the good dick, that keeps them happy. +rep
 

slomoking13

Well-Known Member
Not even that much space I did tha math already for a big op like that and you would need 16 sq feet per 1000w (any more and it wouldnt be used to its full potential), thats 128 sqaure feet per flowering room and 64 sq feet for tha veg so 320 sq feet of plant space total, but you'll need space to move around so lets say about 400 sq feet total.

Still a lot of space and if I had that kinda of money for that kinda of op, I would attain house used only for growing so as not to harm your family or what not in case of a raid or robbery. And I would make sure said house has at least 2 rooms that are 12x12 for flowering and any room smaller than that can be ur veg room.

Any type of hydroponics would be best for this kind of grow, An Aeroponic system Like tha aquamist would be your best bet if that'll fit in tha budget too as its very fkin expensive,

and a ebb & flow would be as easy to maintain as tha aquamist with less yeild but cheaper price,

Bubblebuckets would give you more of a personal relationship with ur plants like soil only they will grow faster than tha dirt and give you a chance to train them (Scrog or LST),

I would recommend trainin em at least a lil bit if you gotta keep ur plant numbers down with that amount of light, at least FIM em a couple times or put a screen up.

With tha right ventilation, nutes, and strain, you would be rollin big homie;)

-Timmy:D
If the lights are near each other and you only give them 4x4 a piece, you are still wasting a lot of potential. I was thinking at least 5x5 because they will overlap each other with supplementary lighting. Anyways, 25 sq. feet per light at 8 lights is 200. Times 2 would be 400 sq ft. and that doesn't even leave an inch to move around, store supplies, or account for the veg room. I also agree that hydro will be more efficient for a large operation, i just prefer organic soil and the top dollar product you can achieve with it ( i know.. that's a whole different discussion lol). If i were going to do hydro i would still do a passive form and hand water... The one thing about hydro that i never liked was all of the plants sharing the same water. If one plant gets infected with something (especially in the roots), there is a good chance all of your plants could be ruined. My 8-16 lb a month calculation was just based on a typical yield of 1-2 lb per light which should be attainable no matter what strain and shouldn't take a lot of experience. Good info timmy!
 

redi jedi

Well-Known Member
what kind of space would you use house or commercial ? thats alot for a house but maybe not
Industrial unit....IMO 20K is WAY too much for your average three bedroom home...but people do it.

This kind of power consumption is normal for a small metal fab shop...no generators needed.

I'm happily single so no worries about that...
 

abudsmoker

Well-Known Member
make sure you have a good market to move all that bud.

and make sure you dont overwhelm yourself with work
 

timmychan

Active Member
The one thing about hydro that i never liked was all of the plants sharing the same water. If one plant gets infected with something (especially in the roots), there is a good chance all of your plants could be ruined.
Thats why I suggested using bubblebuckets, You can make them self contained systems if you use 5 gallon buckets and 1 net pot per bucket, its more work just like soil, but it grows a hell of a lot faster. And you build that relationship with each plant and plus it'll give you something to do everyday while making sure each plant is healthy and bug and mold free.



I believe that set-up is from someone on RIU but it is self-contained and doesnt connect with any other buckets, this is the same plan i will be using for my grow here in a couple weeks.

This guy has a little too much going on with his bucket, you really just dont need all that extra stuff to make a nice bubble bucket, just a pump, air stone, and airlines. All that extra is just for show. Ill post pics of mine when I get it all setup.

-TimTim:leaf:
 

timmychan

Active Member
Thats pretty good advice, especially making sure she is getting the good dick, that keeps them happy. +rep
Industrial unit....IMO 20K is WAY too much for your average three bedroom home...but people do it.

This kind of power consumption is normal for a small metal fab shop...no generators needed.

I'm happily single so no worries about that...
I've alwayz wondered about huge grow op disguised as a legit buisness.

I was actually thinking about a running real and legit buisness with a huge underground grow op underneath tha actual buisness, like a club or a 24 hour restaurant. Then you could launder tha money through tha buisness and have a secure place to grow at tha same time.

It would have to be customed made would be tha only hard part. So you'd have to hire a whole construction crew once you buy tha new building to actually construct this underground grow room. Just tell them its gonna be an extra dance floor for tha club or just a basement for storage for your restaurant. Then once its completed, destroy tha blueprints and disguise tha entrance to the room with something no one will notice or have the door to it in your actual office and just keep your office door locked at all times. That way your workers wont get suspicous as to why you're alwayz kicking them out of a certain part of tha buisness and then disappear when they come back to it.

-TimTim
 
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