grow tent with CO2

No offense taken. And please don't think im speaking in scientifically rigorous tones here. I simply don't need to refill my tank less then every 4 rounds. So unless my controllers calibration is horridly off (and I do calibrate every round), it's an accurate reading. I am only using a CHHC1 controller. Nothing industrial.

P.S.this is the second time in my short time here that I have been questioned by this community. Whille I have no issue with that I cant help but wonder....Do people consistently bullshit on these forums? Cause what would be the point?

I paid a not unsubstantial amount for my degree in commercial ag (please don't anyone else make that mistake) and I have to say...if you assume that a textbook variable will give you a static answer that can be universally applied to every variable....well....prepare for frustration and inconsistency.

FauxRoux said:

No offense taken. And please don't think im speaking in scientifically rigorous tones here. I simply don't need to refill my tank less then every 4 rounds. So unless my controllers calibration is horridly off (and I do calibrate every round), it's an accurate reading. I am only using a CHHC1 controller. Nothing industrial.

Click to expand...

Im only using the chhc4. Wish i would of bought the -1. I never use the other plugs...........

As far as i can tell the only difference between the chhc1 vs chhc4 is the 1 comes with a PC port for software they never fully finished....I have a copy of the software they released and its piss poor to say the least. Basically it graphs the high/low daily variables temp/humidity/c02 etc etc...

So I wouldn't feel to bad about the purchase. Imo the ability to walk away and not worry about the climate of your room is well worth the price.

the heater plug IS useless...but if I lived outside of CA I might not think that.... at least for half the year that is.

the 1 issue I have come upon with my "streamline wind tunnel" is that the space is so small that my dehumidifier creates so much heat in the small space that the heat itself creates too much humidity to be worth using (DOH!!!)...but luckily the over sized AC drops the heat/humidity to a manageable level. (the co2 does not help in that regard).

If I had a warehouse or commercial grow with enough space to create a air baffle to draw air for my "tunnels" (yes in this fantasy I have multiple tunnels) it would solve the problem outright.

My room without plants and gas off is about 400 to 550 ppm. I got to hold.my breath and move in and out quickly cuz me being in thers spikes it up. Quite alot actually it gets up to 750ppm when iam in there breathing all over doing cleanup before another run

I cant beleive a 20 pound tank lasts you 4 crops. Mine last 3 weeks maybe a little more. I have to refill about 3 times a run. And i thought my room was sealed like a sumbitch

Iam not calling u out and your.probably not.bullshitting. Its just i want to know what in the hell you did to seal your room so well??? What size is your room? 4 runs a tank is extremely effecient and cheap. Refilling gas is really cheap here in mich rite now but it does go up and every cent i can save iam for.it.

400-500ppm is a normal ambient co2 lvl in populated areas....why would you need to hold your breathe? 1500ppm is a "greenhouse effect" and about the max a plant can use. People get slightly light headed at about 2000ppm and can die at around 5000ppm....so your probably safe man. You would get a bit dizzy long before you do any damage.

1. iIm using a SMALL space 2'.6"W x 10'L x10'T and 2 stories. Each lvl is about 4' tall (I scrog with COB LED's). Its built to look like garage shelves...hence being only 30" wide
2. all doors are sealed with 1" weather stripping all the way around
3. No air exchange at all. But I do have a roof vent that allows heat out passively, co2 being heavier then air I don't seem to lose anything there.
4. The last year I have only run 6-15 plants at a time...so my c02 use will likely change soon as I ramp up a bit


Here's a pic from my build...keep in mind this was only halfway though it, but it gives you an idea.

foreverflyhi said:

I agree with jondman. However it is possible to run co2 in tent, but like stated before tents are not sealed rooms. U will be leaking co2 and in a long run be wasting money on co2 which might not even do u good.
But if that's not the awnser your looking for them I say give it a try. I'm actually going to be running co2 in my 9x9 gorrilla grow tent. I think I have a better chance with this tent then others because this one is top quality materials! Plus I will be using a co2 generator along with a sentinel. That way I can constantly keep up with the ppm reading and make sure if it's even worth it.
When the time comes use your knowledge of growing and prepare for trial and error. In due time you will get it down. Keep it simple
By the way love your quote jondman lol
thats how I feel at times

Click to expand...

I run c02 in my gorrllia 5x9 tent and also connect that tent to another 4x4 tent. I'm able to keep 1200 ppms and a 20lb tank last me 3-4 weeeks. I also run the sentinal controller. So your correct. The gorrila tent holds in a lot of c02

I say hold my breath (just kidding actually) because my ppm sniffer and Autopilot co2 monitor will pick up the human body and it will show on the monitor. Try it. Go in your room to get an accurate reading and if your in there for any amount of time the meter will show it in a rise in co2 ppm levels. Unless you "hold your breath".

I did mine this way. 5x5 tent with sealed air cooled hood. Dual controller for exhaust and co2. When the co2 kicked on for an hour three times in a twelve hour period. The exhaust shut off. I also left exhaust off for twenty minutes after co2 was done so plants could take in remaining co2. The humidity would spike during those times and temps would increase a little but have had great results. plants would look like they had raging boners. As soon as exhaust kicks back on temp and humidity back to normal in ten minutes.

Oh and I did a rough calculation on tent size to get to 1200ppm with controller

Ive done it with the old school controllers, tents, rooms, timers, math, thermostats, humidistats, etc. I used to give myself headaches trying to control and coordinate temps, humidity, and carbon dioxide levels with old school methods. I seen modest increases but my room was so dependent on outside weather conditions to see them. Wasting co2 by blowing it outside was what i was really doing. A consistent 1200 ppm co2 level and climate was the secret. At all times. Very difficult to do with intake, exhaust, leaky ac units, and shitty home depot dehueys. The perfect day every day till harvest was what the plants were saying they needed. Ive never experienced such in increase in growth rates and yields as when i got the correct air conditiner, dehumidifier, humidifier, co2 ppm controller and sealed up a room proper. Its pricey but i wanted serious yields and a high performance growroom.

since1991 said:

I say hold my breath (just kidding actually) because my ppm sniffer and Autopilot co2 monitor will pick up the human body and it will show on the monitor. Try it. Go in your room to get an accurate reading and if your in there for any amount of time the meter will show it in a rise in co2 ppm levels. Unless you "hold your breath".

Click to expand...

Oh yeah, i know it goes up for sure....its partly why ive always agreed that grows where people check their rooms everyday do better than not. Even half an hour in the room everyday adds quite a bit of co2....but if you have a tank and total climate control automated...well....then you are a happy camper