For the majority of grow tent growers, a passive intake system works perfectly. Passive systems will actually not use an intake system. Instead, the inline exhaust fan will suck the air out of your tent creating a vacuum. This pulls in fresh air from the
intake ports at the bottom of your tent
.
Where do you put the fan in a grow tent?
Your intake fan or vents should be
at the bottom of your tent
. Your extractor fan should be high, towards the back of your grow room, on the opposite side of your tent to yout intake fan or vent.
Do I need ventilation in my grow tent?
Proper grow tent ventilation is essential to healthy plant growth
, and proper filtration is equally essential to clean the air and remove all odors.
Should I leave my fan on when lights are off?
When lights are no more on plants, no more heat is generated. And the photosynthesis process takes a break. However, plants keep breathing and leaving vapors around the leaves. So,
oscillating fans still need to be on duty
.
How do I get better airflow in my grow tent?
- Inline Duct Fan (Active Exhaust Fan) Also called an extractor fan, an inline duct fan is used to expel the hot and humid air from inside your grow room or tent. …
- Duct Tubes. …
- Carbon Filter. …
- Factoring in Accessories.
How do you vent a tent?
How long should a fan be on in a grow room?
You need to keep the fans running during the light hours. This will help prevent humidity and heat affect your yield.
During the dark hours, keep the fan off after 1 hour
. Let the plant flower without any disturbance.
How do you ventilate a grow room?
All you need to do is
vent the humid air out using an exhaust system
, as long as the air from the intake is less humid than the air inside the room. You can also install a dehumidifier. There are times during the growing process when you might need to raise the humidity.
Should I run my grow lights at night?
A: In general,
you should not leave grow lights on 24/7
. Plants need a light-dark cycle to develop properly. It's believed that they truly do “rest” during periods of darkness, and probably use this time to move nutrients into their extremities while taking a break from growing.
How often should air be exchanged in grow room?
Air in your grow area should be exchanged
at least every 5 minutes
. If you are using a grow tent that is 5′ x 5′ x 6′ this is 150 sq/ft of air. For optimal airflow, you need a filter and fan that can move between 30 and 60 cubic feet per minute (CFM). It is also important to balance the flow in and out of air.
How much fan do I need for a grow room?
The size of fans for smaller grows should depend on the duct sizes used in the rooms. Here
six inch is the norm
, as that is the most common size for ducts. You can even use a 4-inch fan inside a 6-inch duct.
Do plants need fresh air at night?
At night, most plants actually reverse the process of photosynthesis. They take in oxygen and release carbon dioxide. This means that when daylight comes again, the plants take in “stale” air from the night before.
Supplying fresh air at night is especially critical to maintaining consistent plant health.
Do you need fresh air in a sealed grow room?
The concept of a sealed room is quite basic; a sealed room is a growing environment where there are no holes or air exchanges to the outdoors or any other room.
It doesn't need to be airtight
, however, the closer to airtight the better.
