It should be easy to find liquid propane or natural gas generators. However, when you burn these gases, you end up with heat that’s difficult to regulate in a small grow room. As a result, we believe you should only use a CO2 generator in a large space.
If you use fluorescent lights or another low-powered source of light, there should be enough CO2 in the air for your weed to grow. You will not see an increase in yield if there’s already enough CO2 in the atmosphere, and you add more.
Ideally, the CO2 source should be placed above your marijuana plants. The reason for this is that CO2 is heavy and sinks to the ground.
Other Methods of Adding CO2 to Your Grow Room
The situation changes if you are using more light than your cannabis garden can utilize naturally. In that case, adding extra carbon dioxide is worth your while because it will result in increased photosynthesis.
By causing your plants to produce extra energy from the same amount of light, you then notice a difference. This small measure should reward you with a boost in growth and an increase in the overall yield size.
How to Introduce Additional CO2 to a Garden
Any CO2 level below this measure is harmful to them. On the other hand, if your plants are exposed to dangerously high CO2 levels, it can kill them.
A compressed CO2 tank is perfect for a small grow room. It should include a ‘doser,’ a pressure gauge, a flow meter, a timer, a solenoid valve, and tubing. Attach the doser to the tank and open the tank’s valve. Pre-set the flow meter and set the timer to open the solenoid valve for the requisite time.
How To Get Started With Compressed CO2
However, since you must seal your grow room to keep all the CO2 from escaping, it’ll likely be easy to keep temps that high when you’re running your grow lights.
Plants Can Use Up to 1200-1500 PPM of CO2
When plants evolved millions of years ago, CO2 levels in the air were much higher than today. As a result, plants evolved with the ability to use high amounts of CO2 as part of the photosynthesis process, up to about 1500 ppm (parts per million).
For plant growth, you want your CO2 to be between 1200-1500 PPM. The meter is attached to your CO2 tank, and it will start injecting more CO2 into the air above your plants when CO2 levels drop below the optimum. This effectively automates the whole system.
Disadvantages of Adding Extra CO2
CO2 in the air is essential to life on earth
You should maintain high temperatures, between 85°F (30°C) and 95°F (35°C).
How Much CO2 Do I Need?