Cooling Requirements 20 1000w Gavitas

[ShastaCanna]

Currently I have plans for (2) 20 light flower rooms and (2) 10 and (1) veg room. Two flower rooms will be 1500sqft. Two others will be around 750sqft. Veg will be around 580sqft.

My question is on my calculations for BTUs when formulating for the rooms temperatures.
I have been using:

1kw= 3500BTUs
1kw=1000w

Room Area BTU = L x W x 40 (48 x 20 x 40 = 38,400)
Lighting BTU = Total Wattage of all lights x 4

So for 20 lights I would have:
38,400BTU from room size
20x1000w = 20,0000w
20,000w x 3.5 = 70,000 BTU from lights only
20,000w / 2 x 3.5 = 35,000 BTU from ballasts
Total BTU to cool room = 143,400 BTU

Can someone verify if I have done the right equation? if not please provide any advice or additional info on further steps. I know machines such as mini splits, dehu and co2 will emit additional BTU's. For things such as fan (700BTU?)

 

[Dbear180]

Currently I have plans for (2) 20 light flower rooms and (2) 10 and (1) veg room. Two flower rooms will be 1500sqft. Two others will be around 750sqft. Veg will be around 580sqft.

My question is on my calculations for BTUs when formulating for the rooms temperatures.
I have been using:

1kw= 3500BTUs
1kw=1000w

Room Area BTU = L x W x 40 (48 x 20 x 40 = 38,400)
Lighting BTU = Total Wattage of all lights x 4

So for 20 lights I would have:
38,400BTU from room size
20x1000w = 20,0000w
20,000w x 3.5 = 70,000 BTU from lights only
20,000w / 2 x 3.5 = 35,000 BTU from ballasts
Total BTU to cool room = 143,400 BTU

Can someone verify if I have done the right equation? if not please provide any advice or additional info on further steps. I know machines such as mini splits, dehu and co2 will emit additional BTU's. For things such as fan (700BTU?)

5k btu per 1kw non air cooled.
I think 3.5k btu for vented 1kw hoods?
Can also depend on your climate tho

 

[ShastaCanna]

Climate Northern CA so it's 100+ Summer and low 30s winter nights.

So it would be the 5k BTU, so even more. Curious how to figure out the BTUs per hour required to maintain said space at 75-80 degrees

 

[Dbear180]

Climate Northern CA so it's 100+ Summer and low 30s winter nights.

So it would be the 5k BTU, so even more. Curious how to figure out the BTUs per hour required to maintain said space at 75-80 degrees

What experience do you actually have? No offense but taking on a project like that & not knowing some basic grow room formulas/laws kinda worries me. That many units alone in gavitas is like $40k+

 

[brazel]

Currently I have plans for (2) 20 light flower rooms and (2) 10 and (1) veg room. Two flower rooms will be 1500sqft. Two others will be around 750sqft. Veg will be around 580sqft.

My question is on my calculations for BTUs when formulating for the rooms temperatures.
I have been using:

1kw= 3500BTUs
1kw=1000w

Room Area BTU = L x W x 40 (48 x 20 x 40 = 38,400)
Lighting BTU = Total Wattage of all lights x 4

So for 20 lights I would have:
38,400BTU from room size
20x1000w = 20,0000w
20,000w x 3.5 = 70,000 BTU from lights only
20,000w / 2 x 3.5 = 35,000 BTU from ballasts
Total BTU to cool room = 143,400 BTU

Can someone verify if I have done the right equation? if not please provide any advice or additional info on further steps. I know machines such as mini splits, dehu and co2 will emit additional BTU's. For things such as fan (700BTU?)

You can't crunch numbers like that, too many variables. What is question? What you need to keep ambient temp?

 

[brazel]

Like @Dbear180 said.. hire a consultant, if you're asking these questions

 

[sixstring]

1 ton ac covers 2 de lights plus all associated equipment like dehuy,co2 burners ect. so 10tons per 20 lights

 

[Monster762]

Currently I have plans for (2) 20 light flower rooms and (2) 10 and (1) veg room. Two flower rooms will be 1500sqft. Two others will be around 750sqft. Veg will be around 580sqft.

My question is on my calculations for BTUs when formulating for the rooms temperatures.
I have been using:

1kw= 3500BTUs
1kw=1000w

Room Area BTU = L x W x 40 (48 x 20 x 40 = 38,400)
Lighting BTU = Total Wattage of all lights x 4

So for 20 lights I would have:
38,400BTU from room size
20x1000w = 20,0000w
20,000w x 3.5 = 70,000 BTU from lights only
20,000w / 2 x 3.5 = 35,000 BTU from ballasts
Total BTU to cool room = 143,400 BTU

Can someone verify if I have done the right equation? if not please provide any advice or additional info on further steps. I know machines such as mini splits, dehu and co2 will emit additional BTU's. For things such as fan (700BTU?)

I built a room with 82 gravitas in it. They had to use arctic insulation palling around walls and litterally strapped a central air condition unit to each room. Your talking multiple thousands of dollars a month in electric. And need really heavy wiring or it will all fry. Melt the wires. So start with rooftop ac units.

 

[Monster762]

I built a room with 82 gravitas in it. They had to use arctic insulation palling around walls and litterally strapped a central air condition unit to each room. Your talking multiple thousands of dollars a month in electric. And need really heavy wiring or it will all fry. Melt the wires. So start with rooftop ac units.

Gavitas dumbass smartphone.

 

[Smerb]

Grow big or go home, to a small grow....

 

[CaliRooted]

Always over compensate the cooling department. I have 7 tons for 12 lights do the math. Honestly tho if your trying to go that big and don't fully understand this stuff, I'd consider something different. Have you seen the market prices lately? Anyways goodluck at your adventure

 

[redlife215]

If they are in shasta county like tge name implies i coukdnt inagine them being that ignorant to the basics of growing. Sometimes people jus wanna reinforce their thinking so they cone gere to the forums. I doubt they wanna hear u guys tell em tht tgey dont k wo what they are doing even when u dint know the guy. If u are around tge redding area hit me up i know alot of big indoor growers and can prob answer everything u need to know

 

[CaliRooted]

Dude I live in Shasta as well and you know what it's like up this way. I'm well established and still see struggle, if you aren't trying to go legal it's a waste of time in my opinion. Top shelf indoor going for 15-1600 isn't worth the power usage is all I'm saying. Notot trying to blow smoke up someones ass Happy Growing!

 

[brazel]

If they are in shasta county like tge name implies i coukdnt inagine them being that ignorant to the basics of growing. Sometimes people jus wanna reinforce their thinking so they cone gere to the forums. I doubt they wanna hear u guys tell em tht tgey dont k wo what they are doing even when u dint know the guy. If u are around tge redding area hit me up i know alot of big indoor growers and can prob answer everything u need to know

I know grips of growers but can't name one that would ask that question. But I get what you're saying.

 

[redlife215]

Shit going legal is def not tge way, waste of time and money imo. 1600 for indoor is still worth growing it if u have a market. If i got a line to consistent a1 fire ins for 16 in redding area ket me know ill move em allday

 

[CaliRooted]

Ok I take that back, I agree legal isn't the way to go. Really though if you aren't currently established, it's rough out here. Yes on the consistent in's at 15-1600. These are worth 2 all day imo.

 

[ShastaCanna]

Sorry for the confusion, was in a bit of a "mad scientist" mode last night after trying to figure my equations. I am starting with (1) 20 light flower room for the first harvest. The additional rooms are future planning which is why I am trying to equate the math to limit surprises. Each building has different dimensions, with 2 buildings have flat ceilings and the other having slanted which is why I am questioning myself as I have always had 8 ft flat ceilings. May be a case of paralysis by analysis. Thanks for the input

 

[brazel]

Sorry for the confusion, was in a bit of a "mad scientist" mode last night after trying to figure my equations. I am starting with (1) 20 light flower room for the first harvest. The additional rooms are future planning which is why I am trying to equate the math to limit surprises. Each building has different dimensions, with 2 buildings have flat ceilings and the other having slanted which is why I am questioning myself as I have always had 8 ft flat ceilings. May be a case of paralysis by analysis. Thanks for the input

Vaulted ceiling? Heat rises