large scale production

[jonathanfrost]

You guys make so many assumptions. Like where are you even coming from with all this? My age? My expertise? The size of my garden? My daddy's money? My ability to plan? Gtfoh. None of your assumptions are even remotely on base. I asked for information resources regarding large scale garden HVAC design because I am in the process of conducting feasibility analyses involving various alternatives so that I may in time construct a solid plan for success. The HVAC thing is difficult to approach because I have very little knowledge on this subject. Good resources could be a book, a link to a thread or an informative website, a consultant, etc. I was met with a dead end of harsh scrutiny here. I feel like you're all just so quick to whip out your mpenes and show off your arrogance without any words to even back your pompous attitudes which is downright hubris. Where's the information you're all so apparently anxious to flaunt (or withhold)?

If you feel questions are redundant and not worth your time to answer, don't respond or get off the forum if you're so sick of answering the same questions (if you're even answering any), but something about your near 4000 post count tells me you don't have much else to do except belittle people trying to learn.

I am not going to spend hours hunting through all of the threads here and attempt to discern the little bit of truth on this site from the countless numbers of inaccurate bits of broscience closet garden advice, especially when I have just a few very specific technical questions. I asked for resources so I could do the legwork myself.

The atmosphere here is contrary to what a forum (in the Roman sense) is supposed to be all about, e.g. learning and sharing knowledge.

 

[jonathanfrost]

Oh. Also, the HVAC tech I contacted advertises as a commercial garden specialist. Before we had medical cannabis, he specialized in enterprise scale server room HVAC. I'm confident that, unlike my decision to post here, contacting this guy will pay off.

 

[queequeg152]

Oh. Also, the HVAC tech I contacted advertises as a commercial garden specialist. Before we had medical cannabis, he specialized in enterprise scale server room HVAC. I'm confident that, unlike my decision to post here, contacting this guy will pay off.

this makes me happy.

more people need to do this... imho any hvac system above 10,000 bucks should have engineering invested into its design.

generally speaking... building engineering and design cost around 10% of a projects cost.

and i dont mean like PE signed sealed specs and drawings, i mean just general analysis,heat gain/loss, general feasability, rudimentary cost projections, rudimentary specifications in writing and design drawings on a general as built floor plan.

you dont need to be a ME or CE or what ever else might get involved in hvac... alot of higher end commercial HVAC guys are more than capable to do these calculations and model a duct system in spread sheets.
they just cant pull building permits on their designs.

i see so many unnecessarily expensive systems on here, and a general lack of hvac knowledge.
i really think alot of folks could benefit from some low level consulting here.

 

[OG Tree Grower]

It's a tough question to answer without knowing where your located, size of building, how well it's insulated,type of system your gonna run how many rooms your gonna build ect, but I think you did the right thing by calling a contractor if you wanna scale up so fast without prior experince

I personally would build 4 rooms with with 11 bare bulbs and 10 trees in each room, each room would have a stand alone 4 ton ac. There easy to install your self with some simple tools and you'll save over 10 grand. and so is the duct work if your using any

Here's a useful link
http://www.excelair.ca/products/
There products are expensive but great for growers who don't have hvac buddies or a legal grow. If your buying 4 units tho I would definally do a bit of reading and learn how to do the install your self . Other wise your gonna throw away a lot of money on a very simple project

 

[mowood3479]

there are hundreds(if not thousands) of pages of threads on ac sizing for grow rooms. It's a pointless guess without knowing more Info but I'd say ud need between 15-25 tons of ac... But without knowing climate, solar heat gain, cubic footage, etc. etc. it's a pretty worthless estimate.

On Many of the threads there are professional hvac guys who have taken the time to share their knowledge And experience.
When I was switching from air cooling to a/c I read and read.. And learned everything I needed to know: sizing, where to buy the ac from, how to install and wire, and how to service.
It's all here on the mag. Grow rooms and designs sub forum.
Good luck and holler if u have a question that can actually be answered...

 

[junior_grower]

Its been said consult a good mechanical engineer. On this scale there are other heat loads, occupants, pumps, fans, panels, ballasts, solar gain, etc. Choose your engineer wisely they make or break projects.

 

[LostTribe]

Go take a peak and urbangrower on youtube. Its Remo. No longer with AN I think atleast has his own line of nutes now but doesn't everyone? That is besides the point. His 50 plant flip visit is a nice setup. Maxing out wattage vertical is the only way to ride. All the kids out in CO are waiting their time and using way too much electricity on horizontals. Most of them roll vert.

Never mind he's still with AN I don't support AN but dude has some nice vids of large grows with big yields.

https://www.youtube.com/user/urbangrower

 

[mowood3479]

Oh. Also, the HVAC tech I contacted advertises as a commercial garden specialist. Before we had medical cannabis, he specialized in enterprise scale server room HVAC. I'm confident that, unlike my decision to post here, contacting this guy will pay off.

Ohhhh burn.
Why not include pertinent info (instead of just being a jerk)... U might get an answer to ur question..
I'm pretty sure if you ask your paid hvac consultant the same question without providing more info than you gave us, he'll give you the same answer (not enough Info to answer properly)
The entitlement is just bizarre to me.....
I'm so sorry the 30 seconds you took to post an incomplete question on an online forum wasn't answered to ur satisfaction, and u consider that 30 seconds to have not "paid off" to ur liking,
We will all try much harder to make u happy in the future. So sorry to have offended. (sarcasm)

 

[rykus]

I like to figure on 4-5 tons per 10-12 lights... I usually do flips and generally base room size lights and ac needs on power supply... Usually 200/400 or 600 amp service so 12 flip n ac/24 flip and ac and 48 flip n AC...depending... But yeah a nice 24 flip I would grab 4 5 tons on the cheap(ie not through an AC guy) then hire a good tin basher and maybe an electrician if you need one. But really the tin basher will make all the ducting and stuff to turn air in a big space...

After that all you need is a good high temp shut off for crop failure prevention... Ask me how I know...lol

Good luck

And damn Mikell, be nice to the newbies, lol. Going to have to get you Mesa puzzle book for your morning mental stimulation,lol, I can't even appreciate the excess of intelligence before my first coffee, lol

Ic mag for the win