Is CO2 really a 50% yield increase?

[ThereIsHope]

I guess I am an exception regarding CO2. I did my homework and research of temp ranges and CO2 levels and jumped right in and really have no regrets.

I use a 50 pound bottle of CO2 versus a generator so no added heat issues for me.

The trick is knowing your grow areas temperature ranges and humidity levels and how relatively sealed the grow area is during a 24 hour period.

Instead of battling heat issues, I run lights at night which is cheaper and if I ran them in the day, the temps would be 100+ degrees.

I use no exhausting for the room nor dehumidifiers. I periodically open the door. That is it (detached workshop). A couple of high velocity floor fans for circulation and bada bing. If the room needs humidity, I wet the concrete floor or bring in a few buckets of water. RH swings from 15%-60% and is normally around 45%. I do not try to keep this humidity number controlled by humidifiers or dehumidifiers and do it by the means I mentioned. It is cheaper if you have the time.

CO2 levels are at 1500 PPMs controlled by a CAP PPM-3 connected to a solenoid/regulator at the CO2 bottle.

I do not get anal about temps and let them swing from 70-100 degrees and run CO2 during lights on. If my indoor temps get below 70 degrees or so, I shut off the CO2 because it is not efficient at lower temps.

 

[MaxYield]

C02 is needed by the plant in order to turn light into energy. It is only useful to any great extent when the light is on, so its a waste to enrich C02 during the dark period.

Than could a O2 add up during dark period could be good?

 

[ThereIsHope]

Than could a O2 add up during dark period could be good?

Not the way I understand the way it works so no.

Plants exhale O2 at night and take in CO2 during daylight.

Enriching the O2 levels at night would not do dick in my opinion because the plant is producing O2 and not consuming O2.

At least that is the way I understand the simple mechanics.

 

[Rush Limbong]

I did my homework and research of temp ranges and CO2 levels and jumped right in and really have no regrets.

Shit, I respect you there bro^

The trick is knowing your grow areas temperature ranges and humidity levels and how relatively sealed the grow area is during a 24 hour period.

If I could do that, I'd be more prone to use co2. The way My set up is, I have to be constatnly aware of the weather, so I can make temp adjustments accordingly. I'd have to say that temp swings are a big factor, close to #1 why some peoples yield suffers.

Kudos to anyone on here who uses co2...

RUSH

 

[Guest]

I guess what no one has stated yet as far as running CO2 during lights off is that plants emit and exhaust CO2 during lights off and it would be redundant and possibly detrimental to run the tanks or generators to fill the room with something the plant is already trying to get rid of..........But yeah.........I`d liketa see Sandman`s and soilman`s setups....My plants have always liked the higher temps as long as the a/c was kickin in with the thermostat..Gets back to environment..I`ve never run gas but I`d think it`d be like MTF says as far as dialed-in environment control within a totally sealed room with ample a/c and a recirculating carbon scrubber or no visible results would be worth the investment....Dehumidifier is essential last 4 weeks of flower where I live......Anyways......take care...DHF..........

 

[Guest]

You beat me to it but anyway I`m glad it was brought out THEREISHOPE..........Peace.........DHF..........

 

[thc43]

im all for co2 in my grow if it improves quallity.. yield i can increase with an extra globe and better training maby more plants in the room. thanks neptune must check in on your current grow sounds like you ve taken the next step...

Mtfsandman very good info there, if my grow was alittle larger co2 would probally suit me well, but unsure about having a sealed room ive gone rite off using a/cs after last summers power bill.

 

[MTF-Sandman]

I`d liketa see Sandman`s and soilman`s setups...

It ain't anything special...2k sealed SOG. Consistently pulls 1.5lbs per light with multiple strains tho (some aren't great yielders)

 

[legalizekindtok]

#21
ThereIsHope
Registered User


Join Date: Mar 2007
Posts: 70


I guess I am an exception regarding CO2. I did my homework and research of temp ranges and CO2 levels and jumped right in and really have no regrets.

I use a 50 pound bottle of CO2 versus a generator so no added heat issues for me.

The trick is knowing your grow areas temperature ranges and humidity levels and how relatively sealed the grow area is during a 24 hour period.

Instead of battling heat issues, I run lights at night which is cheaper and if I ran them in the day, the temps would be 100+ degrees.

I use no exhausting for the room nor dehumidifiers. I periodically open the door. That is it (detached workshop). A couple of high velocity floor fans for circulation and bada bing. If the room needs humidity, I wet the concrete floor or bring in a few buckets of water. RH swings from 15%-60% and is normally around 45%. I do not try to keep this humidity number controlled by humidifiers or dehumidifiers and do it by the means I mentioned. It is cheaper if you have the time.

CO2 levels are at 1500 PPMs controlled by a CAP PPM-3 connected to a solenoid/regulator at the CO2 bottle.

I do not get anal about temps and let them swing from 70-100 degrees and run CO2 during lights on. If my indoor temps get below 70 degrees or so, I shut off the CO2 because it is not efficient at lower temps.


I tried it just as you have and got good results and found that when i increased my temps from 75-78 to 88-90 i got an explosian of growth and twice as much more watering and feeding... co2 is just part of the equasion... if you add more of one thing you have to add more of everything.. and unless you co2 a sealed room you are wasting time and money... enriching w/ co2is good when used correctly!!!

 

[htowncat]

me no no how to use co2 =(

 

[Neptune]

you have 52 garbage posts in less than 10 days. ^^

wow.

 

[humble1]

i feel your pain, neptune.
i also bought a propane c02 generator and experienced difficulty with the increase in rH, temperatures and the x factor.
what could the x factor be this time for someone who has to learn the hard way?

the pilot light!

and one of my girls already is slipsliding into hermies because of the pilot light that stays on during your dark cycle if you don't relight when your lights come back on.
i'll go with bottles next time.
nuff said. who's next?

 

[Guest]

humble there is no way your pilot light is causing your plants to hermie,I've been using one way too long to think otherwise.You either have a light leak or more likely a genetic herm,all that pilot light is going to do is produce a little co2 which the plants do anyway during dark hours.Its not unusual for me to awake to 2500PPM with a full room.A red diode will do it,a pilot light definately will not.