CO2 PPM safe?

Jackrolls1

Jackrolls1

Active Member
I have my natural gas water heater exhaust leading to my grow room. Once or Twice a day the shower gets used and it shoots the PPM of the room to about 2500 for about 20 mins, or however long the water tank takes to fill... anyway my exhaust of my room sucks it back out.
Ive read 1500ppm is best for plants.
But if they are exposed to high dosage of CO2 for about 30min once or twice a day, then returns to norm, is this safe for the plants?
 
Some will say no but for that short of time I haven't had a problem. If it was all day then yes. I've messed up a few times and had a tank dump out in 1 light cycle. No affect on plants. But watch your plants. If they show signs of stress you need to find a way to bring it down.
 
Jackrolls1 said:
I have my natural gas water heater exhaust leading to my grow room. Once or Twice a day the shower gets used and it shoots the PPM of the room to about 2500 for about 20 mins, or however long the water tank takes to fill... anyway my exhaust of my room sucks it back out.
Ive read 1500ppm is best for plants.
But if they are exposed to high dosage of CO2 for about 30min once or twice a day, then returns to norm, is this safe for the plants?
Click to expand...

are you serious? you actually went in that room at 2,500 ppm A ppm that high can kill you. do you even have a carbon monoxide detector in your house? I'm not sure about natural gas but oil puts of carbon monoxide. you can do pretty good without co2 you should focus on your style save up money and do co2 properly cause that shit is dangerous. thats all we need is some kid on the news who died from a marijuana grow the media would have a field day with that shit trying to say how dangerous grow houses are and shit. I just saw a video on youtube from a colarodo news station trying to say grow houses are dangerous but its just a few idiots that don't know what their doing making us all look bad.
 
1. I appreciate your concerns
2. I didnt ask for your opinions, I just asked if it was ok for my plants.
3. Yes i do have a CO detector in the same room as my plants AND one right by the water heater.
4. 30,000 ppm of CO2 will make you light headed.
5. 2500 ppm of CO2 wont do shit to you.
View attachment 2372370
http://ezinearticles.com/?CO2-for-Free&id=48431
And I have a CO2 meter that tells me what the ppm is and sounds an alarm when the ppm is above 3000.
I also have the exhaust running 24/7 so it is impossible for CO2 to build up above 2500 or so.
I need to go smoke a bowl.. im grumpy as shit.
 
Burning natural gas puts off CO? I ran a co2 burner off of natural gas for years.

But yeah...I've intentionally ran co2 @ 2500 ppm weeks 4-6 and it did nothing beneficial or detrimental. From what I understand, anything above 1500 can't be used by the plants.

And FYI - OSHA allows a max of 5000 ppm for working environments.
 
thanks for the reply slump :)
Yeah i don't have an inline damper so i cant really control the amount of co2 that is put into the room while someone takes a shower.
But sense its free, I'm not too worried about it, as long as its not hurting my plants.
 
there's a huge informative thread here about venting the water heater exhaust to the grow. too fucked up to look for it right now but natural gas burns pretty clean I thought and I don't know why everyone freaks out about it, as the dude up above stated co2 generators burn natural gas. but about the original content, if it were more like 4000 ppm you may have a problem.
 
any flame will put off co, it has to be a small very blue flame to get co2 and water heaters will put out a lot of co. if you have ever looked inside of a co2 generator the flame is maybe 1/2" high and all blue.
 
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