What's new
  • As of today ICMag has his own Discord server. In this Discord server you can chat, talk with eachother, listen to music, share stories and pictures...and much more. Join now and let's grow together! Join ICMag Discord here! More details in this thread here: here.

Looking for advice on my 36kw shop project

NorCalFor20

Smokes, lets go
Veteran
Working on a 36kw shop, have a few questions about possible routes to take considering the design.

The dimensions of the shop space I have to work with is 54'L X 17'W.

I also have to be able to store res water, trim, harvest, and wash hydroton in this area so all of it cannot be used for growing however I am comfortable working in a slightly cramped environment.

I do have a few questions about how to make the best use of space and exhaust heat accordingly.

I have experience running large grows but nothing this size on my own, so there are a few things that need to be addressed that I'm not used to having to deal with and could use some input from other growers.

First of all- I am trying to decide if I should run the room sealed with co2 ( i have no experience running co2 ) or should I run it with aircooled lights and just exhaust out of the building, this seems easier and it's what im comfortable with, but I know with co2 I can get higher yields. I don't know much about co2 enriched grows other than most people run a ductless split system ac and combat the lamp heat with that, and don't know much about the best way to set it up- would probably go the NG burner route. I just don't know much of the details and would appreciate a link to a tutorial of some sort. I also wonder if it's possible to run air cooled hoods while using co2?

My second concern is properly arranging the lights for quick heat removal (if I just use air cooled hoods instead of co2) In the past I have made runs of 4 lights per 8" fan and exhausted out of the room, however- running 36 lights I'm going to need longer strings of lights. But what I don't know is how many lights you can cool with one 8" fan before there is inefficient excessive heat buildup.

I'm planning on exhausting the light heat through the roof of the building and disguising it as a furnace chimney. (I'm legally growing, but still need to be discrete for security reasons) Trying to decide if I should use one big fan to pushing air out from all rows of ducting- or if it's better to have separate ducting fans run for each row of lights.

Also, making a decision on which hood to run is important as well. I am considering blockbuster 8", Magnum xxxl, or whichever reflector is considered best lighting output as of now. Last hoods I used were blockbuster's with good success but open to considering anything new or better, which may change depending on if I run sealed or air cooled.

Sorry for the long read but I am trying to explain as best as I can. Once I get some input from you guys I'll draw up a plan, upload it to ICMAG and see what you guys think of the blueprint.

I'm running 1.5 plants per light so still deciding between going with the titan monster gro system or a current culture system, open to suggestions (except using soil) Leaning towards current culture but im more experienced with a flo n gro system. I had an electrician wire up a 400amp panel so I have plenty of power to get these lights and fans running with plenty of amps to spare for a hot tub after a long day of working in the garden. :)

Thanks in advance for the advice and sorry I've been away from icmag so long, I forgot my password. haha :tiphat:
 

MIMedHead

Active member
I would use Gavitas for lights, grow system doesn't matter but I'm a big fan of coco, I'm sure with low plant counts undercurrent is probably the way to go. Use a couple 5 ton A/c and quest dehumidifier to control humidity. I would also go co2 NG generator. Use a few big carbon filter/fans for scrubbing the air. I could go on and on but you will figure it out haha
 

hvac guy

Active member
If you need a custom lighting controller/panel, send an email to info@nowirenuts, these guys make some awesome gear.
 

LungButter420

New member
the shorter the length of the ducting from ur light to outside the tent, the better. this minimizes the time the hot air has to radiate out into grow space through the ducting. Honestly, I think long strings of ducting would almost be pointless as a lot of the heat you're trying to get rid of would radiate out into the room while travelling through the ducting. Not quite sure how good insulated ducting is but it may be worth a try. I'd suggest open lights and AC unit/s, think it'd be easier for such a big scale. Hope this helps.

LB420
 

rykus

Member
I would build a 6x 17 room in the middle for electrical, fans , res's , food, and two 5 ton ac's. That leaves a 17x24 room on each side I'd go bare bulb and hang em vertical, 3 rows of 6 bulbs with 4 rows of 12 plants?

AC Co2 is key in clean commercial growing. Way less issues in sealed rooms and less smell/ noise too. Using the middle work room as a lung saves $ on AC Co2 setups and bare bulbs yield better with low plant #'s also saving on shades/fans too.but you'd need fans and filters cycling the air. I use passive ins from the lung room and filter exhaust back from far end of grow room to lung on constant 24/7 with can fans and duct.

Coco with drip in large containers is safer, but if you must go hydro for security reasons, go drip like Krusty or all those old bucket systems, and make 100% sure you have adaquet AC res chillers and water circulation... I love hydro but when 1 lost crop = bankruptcy then IMO dirt isn't that bad an idea... At least till your ahead.

Good luck!
 

NorCalFor20

Smokes, lets go
Veteran
How many AMP's you got?

200 at the moment, but we may upgrade to a 300 amp panel if needed, but i doubt we will. We decided to scale down to 20kw to make things easier.

I would build a 6x 17 room in the middle for electrical, fans , res's , food, and two 5 ton ac's. That leaves a 17x24 room on each side I'd go bare bulb and hang em vertical, 3 rows of 6 bulbs with 4 rows of 12 plants?

AC Co2 is key in clean commercial growing. Way less issues in sealed rooms and less smell/ noise too. Using the middle work room as a lung saves $ on AC Co2 setups and bare bulbs yield better with low plant #'s also saving on shades/fans too.but you'd need fans and filters cycling the air. I use passive ins from the lung room and filter exhaust back from far end of grow room to lung on constant 24/7 with can fans and duct.

Coco with drip in large containers is safer, but if you must go hydro for security reasons, go drip like Krusty or all those old bucket systems, and make 100% sure you have adaquet AC res chillers and water circulation... I love hydro but when 1 lost crop = bankruptcy then IMO dirt isn't that bad an idea... At least till your ahead.

Good luck!

I took your advice on building a room to draw air from (i will also use for trimming/harvesting) I have absolutely no experience running barebulbs and every time I see a bare bulb setup, it freaks me out bc knowing me i might fall into one and burn my face off. So for safety (and inspection) sake we will be running air cooled hoods.

Coco isn't really my cup of tea, i see people running it, doing amazing stuff. But i've always been a hydro guy and never had a crop failure. Planned on using two commerical 1hp chillers for the hydro systems to keep things nice and chilly in the root zone.

the shorter the length of the ducting from ur light to outside the tent, the better. this minimizes the time the hot air has to radiate out into grow space through the ducting. Honestly, I think long strings of ducting would almost be pointless as a lot of the heat you're trying to get rid of would radiate out into the room while travelling through the ducting. Not quite sure how good insulated ducting is but it may be worth a try. I'd suggest open lights and AC unit/s, think it'd be easier for such a big scale. Hope this helps.

LB420


Good advice there, I am looking into using the insulated ducting, to combat that heat loss. Know of anyone who uses it on here? Open lights wont work because I have 8' ceilings.

If you need a custom lighting controller/panel, send an email to info@nowirenuts, these guys make some awesome gear.

Since I'm running nanolux ballasts and cloud control system I won't need any controller systems, but thanks for letting me know. Since you're an hvac guy maybe you could chime in on cooling requirements for a 20kw sealed air cooled room.

I would use Gavitas for lights, grow system doesn't matter but I'm a big fan of coco, I'm sure with low plant counts undercurrent is probably the way to go. Use a couple 5 ton A/c and quest dehumidifier to control humidity. I would also go co2 NG generator. Use a few big carbon filter/fans for scrubbing the air. I could go on and on but you will figure it out haha

Gavitas were ideal in my mind at first but considering my 8' ceiling height i decided to go with something air cooled. If you check out my other post I made in the grow room design forum you will see I have made a few alterations decided to downsize to 20kw to keep things simpler. If you guys can, let's move this over to the other post to keep things simple.

Finalizing the Design; 20kw, Sealed, 16'w x 48'l

https://www.icmag.com/ic/showthread.php?t=315154
 
I don't think 200 amps will be enough to support 20 lights, a/c's, veg, chillers, can fans etc... Just my experience... unless you split it into 2 rooms and offset them.
 

NorCalFor20

Smokes, lets go
Veteran
I don't think 200 amps will be enough to support 20 lights, a/c's, veg, chillers, can fans etc... Just my experience... unless you split it into 2 rooms and offset them.

theres no veg room, as of now it would just be a room that goes start to finish all at once, we have considered dividing the rooms but might wait until after the first harvest. Right now I'm thinking 300amp panel might be in the works.
 

rykus

Member
20 lights is only 100 amps.. If your careful with any high draw 120 you should be fine IMO... It is much more efficient to flip though, even divided that room lengthwise if your work room has to be at 1 end.... Best advise I can give is use all your space and power, lol... Nothing gained by big walkways and unlighted areas...
 

Latest posts

Latest posts

Top