Please note: As you’re burning propane or natural gas to get CO2, this chemical reaction also adds water vapor into the air and increases your humidity. The increase in humidity is even greater when you generate a lot of CO2 or have a very small grow area. This extra humidity can become problematic in some cases, especially since you must seal your grow area to keep the CO2 inside.
If you’re not carefully monitoring the humidity, you may put your plants at increased risk for mold (remember, humidity should always be below 70% in vegetative, and below 60% in flowering). A strong dehumidifier may be what you’re looking for in this scenario. To use this method of enriching CO2, you will need the following equipment: 1. Controller to regulate CO2 PPM in room and turn off CO2 injection at night 3. Keep in mind: How will you find propane or natural gas on a regular basis? Some homes get municipal natural gas, and this can sometimes be hooked up directly to a CO2 generator. Some CO2 controllers can be integrated with a complete climate controller (often sold for people growing with hydroponics). A climate controller can monitor and adjust your fans, CO2 injection and other factors so you automatically maintain the right temperature, air movement, humidity and CO2. If you’re not going to get a CO2 controller and need to use a timer… If you’re not going to use a controller (which is what you want to do if you can afford it,) you will need to calculate how much CO2 to add to your grow area and use a timer to control how much CO2 gets added. To calculate the amount of CO2 needed to enrich the air of a room to 1200-1500 ppm of CO2, this is what you do: Calculate the volume of the growing area by multiplying width x length x height.
Example: If you had a closet that was 5 ft x 4 ft, and the ceiling is 8 feet high, you would multiple 5 x 4 x 8 = 160 cubic feet of space in your grow area. Determine the CO2 needed to enrich room to 1200 or 1500 ppm by multiplying the volume of space by 0.0012 or 0.0015 respectively. Example: So to get 1200 PPM of CO2 in my 160 cubic feet closet, I’d multiple 160 x .0012 = 0.768 Thus, 0.192 cubic feet (or you can round up to 0.2 cu ft) of CO2 will be needed to bring the CO2 in this room up to 1200 ppm. When you’re buying tanks, 1 lb of CO2 is equivalent to. If you have a sealed room, then you will need to keep adding CO2 based on how much your plants are using. If the room is not sealed, you will need to replace CO2 at a rate equal to the amount plants use plus what’s being vented out. It’s recommended that you regularly test and monitor that CO2 levels are staying where you want them to be. Because this is tough for most growers to calculate accurately, it’s highly recommended you get a controller that measures and regulates the amount of CO2, and adjust the CO2 injection based on the current readings! A complete climate controller will make your life a lot easier! Takeaway: Finding the ideal operating temperature is one way growers can help ensure growth rates and bountiful harvests. But as Goldilocks found out, determining ideal temperatures can sometimes take some experimentation. The atmospheric conditions in an indoor garden have a tremendous impact on the quality and quantity of the finished crop. Growers of all skill levels are continuously trying to master the subtle environmental factors that can make a significant difference in growth and yield over the course of a plant’s life cycle. When discussing the atmospheric conditions of an indoor garden, people are often referring to humidity and temperature. Although humidity is an important aspect, this article will focus on temperature, which plays a vital role in the way a plant is able to process light and intake water and nutrients. Join thousands of other growers who are already receiving our monthly newsletter. Temperature affects a plant’s ability to photosynthesize, and it also plays a key role in seed germination and fruit and flower development. If temperatures fall outside the desired range, the garden becomes less efficient. Over time, these inefficiencies can lead to smaller, lower-quality yields. Maintaining a Consistent Temperature Inside Your Grow Room. One of the most important things a grower can do is maintain a uniform and consistent temperature. A uniform temperature means the growroom’s temperature is the same in all areas, from one end to the other. Most growers use high-intensity lighting equipment in their growrooms, which produces excess heat from one focal point. If this is not addressed, the temperature around the light source will be much warmer than in the other areas.
Maintaining a uniform temperature can normally be achieved by creating adequate air flow within the room. Oscillating fans will continuously move the air around the room so the heated air underneath the light fixtures will mix with the cooler air in the room.
Consistency is also important when it comes to growroom temperatures.