Who runs Bloom temps over 79F regularly?

[2com]

Yea. I hear ya. That's why I said some people don't have access to NG or Bottled co2, cause propane is more widely available I think. I'm not suggesting you don't cool your room though, haha.
Still trying to figure out if I'm going window unit or split... either will require mcguivering.

 

[DoubleAtotheRON]

Here’s my sitch. I have 18 HLG 550’s. I can run 12 of them with 2 tons of AC, the dehuyes, etc. I can’t run all 18 sealed up with the CO2. It’s just too fucking hot. I’m installing a new 26 SEER 3 ton in about 2 weeks after we get the room cleared. So in theory, you need 1 ton of AC for every 12,000 BTU’s of heat. Which so happens to be that 1 ton equals 12,000 BTU’s. So now I’m going to have 36,000 BTU’s of cooling power to overcome ~24,000 BTU’s of heat, including the dehuyes.

 

[Apalchen]

Here’s my sitch. I have 18 HLG 550’s. I can run 12 of them with 2 tons of AC, the dehuyes, etc. I can’t run all 18 sealed up with the CO2. It’s just too fucking hot. I’m installing a new 26 SEER 3 ton in about 2 weeks after we get the room cleared. So in theory, you need 1 ton of AC for every 12,000 BTU’s of heat. Which so happens to be that 1 ton equals 12,000 BTU’s. So now I’m going to have 36,000 BTU’s of cooling power to overcome ~24,000 BTU’s of heat, including the dehuyes.

What kinda coverage are you getting per fixture on those 550? I already have a 3 ton but it only 6 cools de 1k lights. I get great coverage off them covering roughly a 5x6 area of canopy per light. I wanted to add a few more de fixtures but need another mini split to do that. What is an average yield per fixture? I didn't have a great experience with quantum boards when I tried them before but it was user error on my part.

 

[Keesje]

Yeah.. it's pretty insignificant. As is the amount of propane this thing uses. Very little. It's like 8 little pilot lights that burn for 4 and a half minutes every hour and a half or so....depends on how often I go in and out of the room.

Then you do some push ups in the room.
You will see that the CO2 will go up soon enough.

 

[DoubleAtotheRON]

What kinda coverage are you getting per fixture on those 550? I already have a 3 ton but it only 6 cools de 1k lights. I get great coverage off them covering roughly a 5x6 area of canopy per light. I wanted to add a few more de fixtures but need another mini split to do that. What is an average yield per fixture? I didn't have a great experience with quantum boards when I tried them before but it was user error on my part.

The 550’s are a 6x6 veg, 4.5x 4.5 flower. Last round we averaged 1.5 lbs per light. 26.8 lbs for the room market ready. The whole building runs about $450 a month in juice. That’s with the 2 ton, lights, and another 18,000 btu AC unit in the processing room.

 

[Keesje]

I think you are doing great.
It now comes down to fine tuning.
Getting more and more info. Not only from this forum, but also from commercial growers who grow other crops and scientists.
The knowledge is there.

 

[2com]

Here’s my sitch. I have 18 HLG 550’s. I can run 12 of them with 2 tons of AC, the dehuyes, etc. I can’t run all 18 sealed up with the CO2. It’s just too fucking hot. I’m installing a new 26 SEER 3 ton in about 2 weeks after we get the room cleared. So in theory, you need 1 ton of AC for every 12,000 BTU’s of heat. Which so happens to be that 1 ton equals 12,000 BTU’s. So now I’m going to have 36,000 BTU’s of cooling power to overcome ~24,000 BTU’s of heat, including the dehuyes.

How did you go about sizing your dehu? (Did you calculate the water input, which would also be the water output/transpiration, and then match to that?)
And then, knowing the dehu requirements, add their total watts to the total calculated watts of everything else in the room (water/air pumps, fans, lights, etc.), and calculate the btus from that total room wattage, and then add the btus from co2 generator to that for a final total btus needed to be cooled?

 

[Apalchen]

Here’s my sitch. I have 18 HLG 550’s. I can run 12 of them with 2 tons of AC, the dehuyes, etc. I can’t run all 18 sealed up with the CO2. It’s just too fucking hot. I’m installing a new 26 SEER 3 ton in about 2 weeks after we get the room cleared. So in theory, you need 1 ton of AC for every 12,000 BTU’s of heat. Which so happens to be that 1 ton equals 12,000 BTU’s. So now I’m going to have 36,000 BTU’s of cooling power to overcome ~24,000 BTU’s of heat, including the dehuyes.

18 550s is roughly 9000 watts right? So if you were to cool 9000 watts of HID you would be at like 4.5 tons. So the fact you can do all 9000 watts and the dehueys with 3 Tons is actually impressive.

If your using the formula of 1 watt equals 3.412 btu, then that is where you miscalculated. That only covers the heat of the light (not even sometimes it seems). It doesn't take into account the heat load of the room with no lights, dehuey, or any other electrical appliance in the room.

With HID lights you need roughly 5000-6000 btu per 1k light. You can get away with 4000 btu per 1k light sometimes if you are air cooling. So if I had to guess for your led id say you fall somewhere in the middle so for every 2 fixtures (they add to 1k watts) I would think you would be around 4500 btu. When you figure it that way it takes heat load of room and dehuey and rolls it into one number per light so you can get closer to what you actually need than the 3.412 number people use.

Since LEDs should be run hotter than HID you should be okay with the the 36k btu mini split,BUT why are your replacing the 24k btu mini just add one more 24k btu mini. Since they have inverter compressor they only run as hard as they need too. This will for sure be enough cooling. You could prob even get away with an 18k btu but I was thinking of redundancy, if one unit fails the other can try to keep up.

 

[newbplantgrower420]

The 550’s are a 6x6 veg, 4.5x 4.5 flower. Last round we averaged 1.5 lbs per light. 26.8 lbs for the room market ready. The whole building runs about $450 a month in juice. That’s with the 2 ton, lights, and another 18,000 btu AC unit in the processing room.

If im not mistaken youve ran DE's before your switch to HLG right? what were you hitting per light with those?

Anything go wrong in your run or is your strain a low yielder or is it the LEDs learning curve? I think if everythings dialed in 2per light should be easily doable with your setup.

Those HLGs dish out enough power to hit that 2 per

 

[Apalchen]

If im not mistaken youve ran DE's before your switch to HLG right? what were you hitting per light with those?

Anything go wrong in your run or is your strain a low yielder or is it the LEDs learning curve? I think if everythings dialed in 2per light should be easily doable with your setup.

Those HLGs dish out enough power to hit that 2 per

2 per from 480 watt fixture is asking a bit much imo. The gavita led and other strip fixtures that are up at the 600-700 watt area are hitting 2 per pretty consistently but they have a better spread of light and the extra power to do it.

I'm not saying it can't be done in a perfect run with the right strain but I highly doubt it's the norm.

 

[2com]

18 550s is roughly 9000 watts right? So if you were to cool 9000 watts of HID you would be at like 4.5 tons. So the fact you can do all 9000 watts and the dehueys with 3 Tons is actually impressive.

If your using the formula of 1 watt equals 3.412 btu, then that is where you miscalculated. That only covers the heat of the light (not even sometimes it seems). It doesn't take into account the heat load of the room with no lights, dehuey, or any other electrical appliance in the room.

With HID lights you need roughly 5000-6000 btu per 1k light. You can get away with 4000 btu per 1k light sometimes if you are air cooling. So if I had to guess for your led id say you fall somewhere in the middle so for every 2 fixtures (they add to 1k watts) I would think you would be around 4500 btu. When you figure it that way it takes heat load of room and dehuey and rolls it into one number per light so you can get closer to what you actually need than the 3.412 number people use.

Since LEDs should be run hotter than HID you should be okay with the the 36k btu mini split,BUT why are your replacing the 24k btu mini just add one more 24k btu mini. Since they have inverter compressor they only run as hard as they need too. This will for sure be enough cooling. You could prob even get away with an 18k btu but I was thinking of redundancy, if one unit fails the other can try to keep up.

I used watts x 4 in my calcs, but I also rounded everything up and guessed on the high side of things. Some (cheap) mini splits don't have inverter technology (just thought I'd mention so someone doesn't make a purchase they later regret).
I like the idea of have two units rather than one larger one though.

 

[downhill21]

600sq/ft. And what's the btus of the 8 burner gen? I duno if it scales, but is that like 40,000 btus? And what is the pints or watts/amps of the dehus?

Too bad there aren't more 1 and 2 burner units out there. Or ones where you can plug some of the burners if not needed (I think sentinel had this feature). Can't find shit except Titan and one that @AquaTerra suggested the other day - way more expensive, and probably too big for the area.

I think u can plug the burners on all of them. The jets are brass & threaded @ the bottom, as are the plugs. I had a hard time initially finding jets or caps for my old CAP, but found they were interchangeable with a more common brand. I’m sorry - don’t remember what brand that was. At any rate, both the jets & the plugs are out there.

 

[downhill21]

Here’s my sitch. I have 18 HLG 550’s. I can run 12 of them with 2 tons of AC, the dehuyes, etc. I can’t run all 18 sealed up with the CO2. It’s just too fucking hot. I’m installing a new 26 SEER 3 ton in about 2 weeks after we get the room cleared. So in theory, you need 1 ton of AC for every 12,000 BTU’s of heat. Which so happens to be that 1 ton equals 12,000 BTU’s. So now I’m going to have 36,000 BTU’s of cooling power to overcome ~24,000 BTU’s of heat, including the dehuyes.

I like that sitch.