CO2 generator advice

OldMedUser

Well-Known Member
Wrong.

Wrong.

Wrong.





@OldMedUser I hope you get help with your addiction man, sorry to hear about it. I fear that, if this man's theories are correct, we may all indeed....be crack smoking crack smokers - who knows?

Wait...


...And it's reached insane levels.
I'm just trying to add to the humor.
Some people. Time to hit the pipe. Packed with some of my home grown Critical Mass this time. Save the Hindu Kush for bedtime.

pass.gif
 

Timezone

Well-Known Member
Lamp oil is not kerosene
Just for fun, I'll disagree on this point. Most references to "Lamp Oil" that I've found are referring to paraffin oil. Paraffin oil is a more refined version of kerosene, not the other way around, id est, one could obtain paraffin oil from the kerosene but not kerosene from the paraffin oil.

I'm just trying to add to the humor.
Me too.
 

LarsVegasNirvana

Well-Known Member
Just for fun, I'll disagree on this point. Most references to "Lamp Oil" that I've found are referring to paraffin oil. Paraffin oil is a more refined version of kerosene, not the other way around, id est, one could obtain paraffin oil from the kerosene but not kerosene from the paraffin oil.


Me too.
But they don't make it from kerosene, they make them both from crude oil. So could you call lamp oil crude oil because you can make one from the other?
 

Timezone

Well-Known Member
...they make them both from crude oil.
True, they both come out of the fractional distillation process at the same point, but kerosene has all the constituents of paraffin oil whereas paraffin oil doesn't contain all the constituents of kerosene, therefore you could obtain paraffin oil from the kerosene but not kerosene from paraffin oil.

could you call lamp oil crude oil because you can make one from the other?
No, for the same reason, It's one way. Crude oil has all the constituents of paraffin oil whereas paraffin oil doesn't contain all the constituents of crude oil. I could make "lamp oil" from crude oil but not the other way around.
 

ChrispyCritter

Well-Known Member
Ok so I've now been running my minigen without wAter cooling and it's ok. Repeat: it's ok. It doesn't get too hot in my setup so now we know. Go for it.
 

LarsVegasNirvana

Well-Known Member
True, they both come out of the fractional distillation process at the same point, but kerosene has all the constituents of paraffin oil whereas paraffin oil doesn't contain all the constituents of kerosene, therefore you could obtain paraffin oil from the kerosene but not kerosene from paraffin oil.


No, for the same reason, It's one way. Crude oil has all the constituents of paraffin oil whereas paraffin oil doesn't contain all the constituents of crude oil. I could make "lamp oil" from crude oil but not the other way around.
It's not the other way. I didn't call crude oil lamp oil, I called lamp oil crude oil, retard.
 

LarsVegasNirvana

Well-Known Member
Ok so I've now been running my minigen without wAter cooling and it's ok. Repeat: it's ok. It doesn't get too hot in my setup so now we know. Go for it.
I just got mine. I love it! The heat is definitely not a problem, although I probably will hook up water cooling in the summer. The main problem is the humidity it causes, especially considering that I need to lower my humidity levels to account for the reduction in transpiration caused by the increased water use efficiency caused by high CO2 levels.

Hooking up water cooling even in the winter might be worth doing because I would have to put another radiator to warm up the water a little bit before it goes into the minigen to avoid condensation dripping down into the electronics. This will cool the room, but more importantly it will operate like a dehumidifier by condensing water out of the air. Hopefully that will help.

Another problem that I didn't think about is that you have to keep it 16" from the top of the tent. I already have a tray table that lifts the pots up about 10" so I'm probably going to have a height issue. I might get a piece of fireproof insulation or something and put it on the top of the tent to protect it and just raise the minigen up.
 

LarsVegasNirvana

Well-Known Member
I think I'm going to have to get a second dehumidifier. :(

On the bright side my veg tent in the next room is at 950ppm. About 100ppm of that is from a mushroom bag, but still.
 

2com

Well-Known Member
I think I'm going to have to get a second dehumidifier. :(

On the bright side my veg tent in the next room is at 950ppm. About 100ppm of that is from a mushroom bag, but still.
Fuck man, that sucks. I've been looking into co2 gens a little bit and was concerned about the water vapor (and heat) they produce - I didn't really know how much of an issue it was.
Edit: Hope you get it all running smoothly.
 

LarsVegasNirvana

Well-Known Member
Fuck man, that sucks. I've been looking into co2 gens a little bit and was concerned about the water vapor (and heat) they produce - I didn't really know how much of an issue it was.
Edit: Hope you get it all running smoothly.
I live in a really wet climate and my 70 pint dehu is overworked as it is. I changed my ventilation so it vented into the same room instead of another room which cut off the flow of moist air from the other room and the dehu didn't work nearly as often. I just need to get a second dehu for the other room where my veg tent and a bunch of house plants are. It's also the source of the humidity coming in from outside, whereas my flower room is much better sealed.

It wastes more CO2 to vent to another room since I'm basically enriching my entire apartment, but it works fine. I can get it up to 1200ppm no problem and I'm barely using any propane. I wouldn't be surprised if I go through several flower cycles before I run out. I'd definitely suggest getting a CO2 system instead of a new light because the electricity for the dehu and AC is minimal compared to the power that a new light would use. You can get an increase in yield with minimal increase in electricity use, so it just makes economic sense to go with CO2 before you invest in optimal lighting.
 

OldMedUser

Well-Known Member
it just makes economic sense to go with CO2 before you invest in optimal lighting.
Without optimal lighting the plants can't utilize the extra CO2 so that advice is assbackwards. Optimal lighting will cause the plants to need more CO2 to more effectively use it. When using CO2 everything needs to be optimized or it's a total waste.
 

LarsVegasNirvana

Well-Known Member
Without optimal lighting the plants can't utilize the extra CO2 so that advice is assbackwards. Optimal lighting will cause the plants to need more CO2 to more effectively use it. When using CO2 everything needs to be optimized or it's a total waste.
That's not true. CO2 increases yield even at the same light intensity. I have heard that myth too and it's why I didn't get CO2 until recently.

Look at figure 6 on page 4:
https://fluence.science/wp-content/uploads/2018/11/Fluence-Photobiology-Guide-2019.pdf

As you can see, at the same light level, you get more photosynthesis rate at higher CO2 concentrations.
 

OldMedUser

Well-Known Member
That's not true. CO2 increases yield even at the same light intensity. I have heard that myth too and it's why I didn't get CO2 until recently.

Look at figure 6 on page 4:
https://fluence.science/wp-content/uploads/2018/11/Fluence-Photobiology-Guide-2019.pdf

As you can see, at the same light level, you get more photosynthesis rate at higher CO2 concentrations.
I was talking about sub-par lighting. If you have just enough lighting to grow decently then adding CO2 won't do much. Growers who use CO2 regularly are running much higher light, nute and temp levels to hit max growth and yields. If anything is less than optimal they won't grow any faster than that limiting value.

Running like that also means that when things go wrong they can go seriously wrong, real fast.
 

LarsVegasNirvana

Well-Known Member
I was talking about sub-par lighting. If you have just enough lighting to grow decently then adding CO2 won't do much. Growers who use CO2 regularly are running much higher light, nute and temp levels to hit max growth and yields. If anything is less than optimal they won't grow any faster than that limiting value.

Running like that also means that when things go wrong they can go seriously wrong, real fast.
Yes it will, read the graph. You need to lay off that crack pipe.
 

LarsVegasNirvana

Well-Known Member
I was talking about sub-par lighting. If you have just enough lighting to grow decently then adding CO2 won't do much. Growers who use CO2 regularly are running much higher light, nute and temp levels to hit max growth and yields. If anything is less than optimal they won't grow any faster than that limiting value.

Running like that also means that when things go wrong they can go seriously wrong, real fast.
 
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