Has anyone ever prefabbed a contained growspace to utilize CO2?

[Ca++]

I have been thinking about taking my carbon out the tent, and putting it in the room instead. I would still have an extractor on the tent, for RH and temp. It would just blow into the room though. The room would have the carbon extraction constantly, for keeping negative pressure in the room. This would mean an extra fan, but also that the tents extract can be turned right off, without loosing the rooms negative pressure. Switching right off allows co2. I'm more interested in getting the temperature up though, when running the lights at half power. Very soon the tent fills though, and RH drives the need to extract. Then I'm looking to conserve all the heat I can, and using heaters. Just to stay warm, because of the extract rate needed for RH control.
Currently, it's not even that poor. It's worse. I can't go to low speeds at all. Low light means heaters and humidifiers, as I constantly extract from the carbon in the tent, for the rooms negative pressure needs. I'm watering my humidifiers more than the plants, when in veg. Wasting heat. I think I'm doing this wrong. It's cold here, I don't wish to use lots of HID, I shouldn't be putting my extract in the tent as I have been doing.
I have my fan out the tent, away from the tent mounted filter. So the ducting between them opens up options. I could just slash it, with no effect to room negative pressure, but lowering tent extract rates. If that slash was a 'T' I could get a second year from the depleted filters. The room shouldn't actually smell anyway. I shouldn't be thinking it's colder and drier than wanted, while extracting. I think I have lost my way, applying with HID knowledge, and just making it smaller. I need to re-jig it all. Only then can I regulate tent extract based on RH and Temp, without the greater need for negative pressure, over-riding everything.

Yeah.. I think I talked myself into it.
Next filter is Spring time, as it should be. I don't think it should wait

Edit: While this seems a mile off topic, it's actually about getting minimum extraction rates for the tent. If your tent can loose all it's heat though it's walls, and you can tackle RH, you might have co2 options. Times like early veg, when you can get a little heat provoking dehu~ in there. Or in a second tent/box that has main tent air circulating through it.
I have talked too much co2. I don't agree with it. It's technically interesting, but I have too many good reasons to hate upon it's use from bottles.

 

[Orange's Greenhouse]

For small spaces CO2 is a waste of money. Why buy extra high power light, AC, controllers and all that when you can just double the size of the grow space and have a higher production for small costs.
Large (legal) grows usually have a limit on canopy area so have to look at other options to increase productivity. CO2 makes economic sense there.

The CO2 in bottles is a hyproduct from chemical plants, usually fertilizer production. When the war in ukraine started many of these plants shot down due to gas shortages and CO2 supply for beverages and such was limited.
It does not get produced for them but rather captured from a waste stream and then released elsewhere. The climate impact is more aasociated with the extra electricity consumption from ACs (that are a necessity in sealed rooms), inefficient usage of light (compared to growing without CO2) etc.

 

[Raho]

. . .
Co2 is really only worth it in a sealed room with a mini-split, or window ac that’s been sealed up.

CO2 enrichment may be a requirement if light levels go high enough, along with other factors.

This is precisely what I mean lol.

I'm at a crossroad currently -- I just got myself a new lamp that I'm pretty sure I NEED (not want, but need) CO2 to avoid damaging my plants with. So do I spend $500+ on a tent or should I use those funds to construct a sealed growing container?

I you are handy and your situation supports a more permanent installation, then a CUSTOM built "inner room" is always gonna be better than a generic factory made tent designed to be collapseable and lightweight enough to ship cheaply as primary requirements.

It's actually an old growers joke . . .

I decided to teach myself how to grow weed and wound up learning carpentry/electrical/plumbing/HVAC !​

Because the light is 1500W. From all of my research on the subject, the CO2 enables me to reduce my growing time substantially PLUS giving me far more yield than what I normally would without it.

Organics is amazing, but unfortunately I don't yet have quality worm castings to go the route of Clackamas Coots.

The higher your light intensity of usable photons, the more your plant will be capable of growing, assuming that everything it needs to support that increased growth is available. That would include things like CO2, nutrients, water, higher temps, and higher RH to stay in the proper VPD range.
The further you take things, the more like a high revving race car your setup becomes, and the less like a simple garden it is. That means that things must be kept in the proper ranges or strange symptoms might appear.

I that 1500 watt light LEDs? What square footage are you covering with that?

 

[Hiddenjems]

CO2 enrichment may be a requirement if light levels go high enough, along with other factors.

I you are handy and your situation supports a more permanent installation, then a CUSTOM built "inner room" is always gonna be better than a generic factory made tent designed to be collapseable and lightweight enough to ship cheaply as primary requirements.

It's actually an old growers joke . . .

I decided to teach myself how to grow weed and wound up learning carpentry/electrical/plumbing/HVAC !​

The higher your light intensity of usable photons, the more your plant will be capable of growing, assuming that everything it needs to support that increased growth is available. That would include things like CO2, nutrients, water, higher temps, and higher RH to stay in the proper VPD range.
The further you take things, the more like a high revving race car your setup becomes, and the less like a simple garden it is. That means that things must be kept in the proper ranges or strange symptoms might appear.

I that 1500 watt light LEDs? What square footage are you covering with that?

 

[Mars_Barz2]

CO2 enrichment may be a requirement if light levels go high enough, along with other factors.

I you are handy and your situation supports a more permanent installation, then a CUSTOM built "inner room" is always gonna be better than a generic factory made tent designed to be collapseable and lightweight enough to ship cheaply as primary requirements.

It's actually an old growers joke . . .

I decided to teach myself how to grow weed and wound up learning carpentry/electrical/plumbing/HVAC !​

The higher your light intensity of usable photons, the more your plant will be capable of growing, assuming that everything it needs to support that increased growth is available. That would include things like CO2, nutrients, water, higher temps, and higher RH to stay in the proper VPD range.
The further you take things, the more like a high revving race car your setup becomes, and the less like a simple garden it is. That means that things must be kept in the proper ranges or strange symptoms might appear.

I that 1500 watt light LEDs? What square footage are you covering with that?

You'll have to pardon my ignorance, I am pretty new to this game.

I'm pretty sure the lamp I just ordered is more than capable of utilizing added CO2 -- it's the HLG Scorpion Ultima Diablo X. From my VERY limited experience growing, I understand dialing in the VPD is paramount to obtaining excellent bud. And because of that, I'm at a crossroad; do I order a tent that can cover a 5x5 area, plus an inline fan? That can cost upwards of $1000 or more for all the peripherals. Or do I construct my own apparatus including dehumidifier, AC, heater, plus the CO2 setup?

I'm thinking the latter option is probably my best bet when factoring in how strong that growlight is. I have been planning to purchase an HLG lamp for over two years now, so when their Black Friday sale went live and I went to purchase the Diablo X and saw the Ultima version, I jumped on that like a dog in heat without looking at the wattage it uses. Oops. LOL

The cost to purchase all the peripherals for CO2 enrichment is quite a substantial investment. However, I'm not sure where you are in your part of the world, but over here in northern Canada, my electricity is hella expensive. If I can obtain a 30% increase in yield at the end of the grow cycle, plus a shorter growing time due to how much these plants tend to explode in that sort of environment (yes, I've viewed people's grow journals on this website) then I should think that initial investment at first will pay for itself over time, and then some, wouldn't you agree?

 

[Orange's Greenhouse]

If you want good bud (high quality) you need good genetics.

If you want high yields per area you need to dial in the other parameters. But for small spaces it is easier and cheaper to increase the size of the grow than adding CO2 or dial in VPD.

 

[H e d g e]

Just put a couple of dogs and a flock of quail in the room the air intakes from, plenty of co2, free eggs and plant food. The dogs might not have been the best idea though, they moult.

 

[Hiddenjems]

Just put a couple of dogs and a flock of quail in the room the air intakes from, plenty of co2, free eggs and plant food. The dogs might not have been the best idea though, they moult.

When I work in my grow room for more than a couple minutes the co2 starts climbing on the meter. In fact, when I’m in there for hours the tank never has to kick on.