CO2 meter for grow room

meangreengrowinmachine

meangreengrowinmachine

Well-Known Member
fartoblue said:
Could I possibly be lacking in co2 with a more or less sealed room, 8 inch intake 10 inch exhaust with 3' carbon filter one slight bend in exhaust pipe, room size 2.2w x 2.0 h x 3.4 long. Lights are 3 x 600HPS
I only run the fans on 50% tick over on the fan controller so as soon as the temps go below 24 they run at half speed.
I do not supplement with Co2.
Click to expand...
I think I see what you are getting at, you dont have much active air flow so you are worried there is not enough natural C02 in the room. I am in the same boat... so I am stuck between... am I just going to be venting C02 or leaking it if I dont 100% seal my room? Also for folks growing in there home which I would assume is a lot if not most of us. Do you have a seperate C02 meter in your living space just to ensure you are not causing the C02 to rise there and endangering yourself and or others in your home? As far as "sealing" a room... should I be going as far as caulking all the seams and corners of the room and making sure the door is sealed? I mean I know I am not going to get a hermetically sealed room here but what level of that am I looking to get to?

I have been growing for a long time but very new to the C02 thing.
 
N

Nope_49595933949

Well-Known Member
I feel that if people have their grows in the bottom floor of their houses, they probably are doing well in terms of CO2 because it is heavier than air and will works its way down their naturally.
 
Highway61

Highway61

Well-Known Member
meangreengrowinmachine said:
I think I see what you are getting at, you dont have much active air flow so you are worried there is not enough natural C02 in the room. I am in the same boat... so I am stuck between... am I just going to be venting C02 or leaking it if I dont 100% seal my room? Also for folks growing in there home which I would assume is a lot if not most of us. Do you have a seperate C02 meter in your living space just to ensure you are not causing the C02 to rise there and endangering yourself and or others in your home? As far as "sealing" a room... should I be going as far as caulking all the seams and corners of the room and making sure the door is sealed? I mean I know I am not going to get a hermetically sealed room here but what level of that am I looking to get to?

I have been growing for a long time but very new to the C02 thing.
Click to expand...
It's possible to use up the available CO2 in a room especially if you have a small space filled with large, healthy plants - which is a goal. A CO2 monitor is useful to figure that out. I live in a cold climate and use a CO2 generator, which is a small propane burner, connected to a monitor/controller. When it is very cold outside, I can turn off the intake and exhaust fans to the shed and run CO2 at 3 or 4 times ambient inside the shed. When it gets too warm outside, the shed over heats and I have to vent excess heat from the shed which also vents CO2. So when it is too warm outside and the shed over heats, I set the controller to run the CO2 generator at lower ppms and run intake and exhaust fans on low which slowly vents excess heat but still allows me to maintain CO2 at twice ambient or so. Once it gets even warmer outside, I have to vent heat more often which draws in sufficient ambient CO2 to turn off the CO2 generator. So, environmental controls kind of work against each other at times.
 
meangreengrowinmachine

meangreengrowinmachine

Well-Known Member
Highway61 said:
It's possible to use up the available CO2 in a room especially if you have a small space filled with large, healthy plants - which is a goal. A CO2 monitor is useful to figure that out. I live in a cold climate and use a CO2 generator, which is a small propane burner, connected to a monitor/controller. When it is very cold outside, I can turn off the intake and exhaust fans to the shed and run CO2 at 3 or 4 times ambient inside the shed. When it gets too warm outside, the shed over heats and I have to vent excess heat from the shed which also vents CO2. So when it is too warm outside and the shed over heats, I set the controller to run the CO2 generator at lower ppms and run intake and exhaust fans on low which slowly vents excess heat but still allows me to maintain CO2 at twice ambient or so. Once it gets even warmer outside, I have to vent heat more often which draws in sufficient ambient CO2 to turn off the CO2 generator. So, environmental controls kind of work against each other at times.
Click to expand...
I'm in a cold northern basement so the burner idea sounds perfect actually!
 
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