How to Cool a Grow Tent- Easy Ways to Control Temperature in a Grow Tent
Growing cannabis plants indoors is fun. But let me admit that it is more difficult. When growing cannabis outdoors, growers must take into account different weather conditions; on the other hand, growing weed indoors also comes with some challenges, such as the proper lighting schedule and finding the best grow lights, and the heat problem.
The good news is that you can reduce the heat generated by your grow lights. Here you will find everything.
Why does the temperature rise in the grow tent?
Of course, our main heat source – the grow lights we use – is responsible for the warm air flow in the tent. All grow lights whether they are HPS, HID, MH, or even LED pet lights emit too much heat from the light. Our plants are kept under a heater in any grow tent. Plants cool themselves by spraying water into the air through stomata.
Growing indoor cannabis in summer can give some new difficulties. When the temperature rises, the entire tent starts to suffer more heat, and the plants will not be able to cool down. Therefore, the temperature rises even more!
Common Symptoms that Show Plant Facing Too Much Heat
Well, the most commonly accepted temperature is 70-80°F or 21.1-26.6°C. This temperature is ideal for tent growing. Here you need to understand that the entire grow room should have a uniform temperature.
A thermometer should typically be kept inside the tent. But even if you don't have them, you may tell that your plants are suffering from too much heat because of the many symptoms they would exhibit.
These symptoms are:
The leaves of the plants became pale and charred.
Plants stop growing, just as they stop growing.
The fruiting stage either arrives early or does not.
If you also see that your flowers are not growing properly or the result is not as expected, it is easy to understand that the light is too hot for your plants.
Methods to Reduce the Temperature in Grow Room
Using LED Grow Lights
Your heat problems can be significantly reduced by switching to a high-quality LED grow light from your conventional HPS/ HID or Metal Halide bulbs.
Whatever lamp we use, heat rises. But compared to conventional bulbs, LED grow lights have a lower heat output. Additionally, if you look into lights with ideal veg and bloom modes, you can protect your plants from suffering from excessive heat stress.
Keep in mind that too much light can be hazardous, and you can control both heat and light by utilizing LED grow lights.
 Using Exhaust Fan
Exhaust fans help prevent air from entering the window. To maintain proper airflow. Continuous air movement does not increase thermal stress. Exhaust fans should be located on exterior windows.
A proper exhaust system does not overheat the outside air, so the air around the grow room stays cool. This keeps the intake air cool.
Using Air Conditioners
In fact, air conditioning is the fastest way to keep your grow room cool. However, it is a very effective method. But to use the air conditioner inside, you need space in the grow tent... Additionally, using them will increase the burden on your pocket.
So, I recommend using an air conditioner only if you have a lot of space to grow and can easily handle high electricity bills.
Increasing Humidity Level
You can reduce the heat inside your grow room by raising the relative humidity level. According to science, the relative humidity lowers as the temperature rises inside a small space.
Further such conditions cause the plants to dry out, meaning all of your hard work will be useless. You may get rid of the extra heat by installing a decent-sized humidifier.
Using Swamp Cooler
Swamp coolers are a good option if you want to increase the humidity in your tent. These coolers are very different from traditional coolers because they use water evaporation to cool the air. Surprisingly, a swamp cooler might reduce the temperature by 10 degrees.
These coolers work incredibly well and use little electricity. Thus, a swamp cooler is a cheaper alternative to air conditioning.
However, avoid using these coolers if the grow tent's humidity level is already high.
Adding Micronutrients
Plants start to absorb more water from their roots as the temperature in your indoor garden rises, which is what they need to do to combat the heat. They also take in more nutrients this way.
To improve the health of the plants, you can add micronutrients like silica to potassium silicate. so that plants can combat the internal heat increase. However, using it as a foliar spray is preferable.
Ending Note:
The main challenge marijuana growers experience is keeping their growing space cool enough to maximize growth and production. You can accomplish a lot of things, but they all cost money, time, and effort.
When looking for methods to control the temperature in grow tents, the three main variables to pay attention to are lighting, ventilation, and humidity. You will be successful if you can manage these.