For a grow tent of this size, you'll want to pick an exhaust fan with
at least 40 CFM
. As a general room of thumb, we recommend picking a fan with a CFM equal to the volume of your tent/room. This will ensure your fan completely replaces the air in your grow space every minute.
How do I ventilate 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.
Can I vent my grow tent inside?
Try Venting Grow Tent into Attic/Chimney
Many growers consider it as a good option to vent through. But there are some serious issues that might take place. Issue 1: First of all, it's the smell. As the air is going to travel through the entire ceiling, the bad smell can irritate everyone in the house.
Do I need an oscillating fan in grow tent?
New seedlings are quite vulnerable to diseases sourced from damping-off air. So, you need to ensure regular air circulation around them 24/7. Depending on the temperature and humidity, you may schedule the exhaust fans, but
the oscillating stand-up or tower fans should always be rolling on
.
Why do grow tents need ventilation?
If your grow tent setup is sealed, this means that the level of CO2 in the room gradually decreases, limiting your plants' growth.
Ventilation brings in fresh air and fresh CO2 from outside and removes the old air from your grow room, boosting growth and yields
.
Does a sealed grow room need fresh air?
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.
How long should you run exhaust fan in grow tent?
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.
Where should a duct grow tent be?
It can be attached to
one side of the fan
and filter to direct air out of the grow space without allowing any to escape. Ducting can be pulled between the grow tent and an open window so that after the air leaves the grow area, it can be removed from the external room, too.
Where should I put my oscillating fan in my grow room?
What causes high humidity in grow tent?
The air will hold more water vapor when the temperature in your grow tent is higher.
Heat in a grow tent causes the water to move faster through the air
, resulting in higher humidity.
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 ventilation do plants need?
One method bases ventilation needs on the cubic footage of your garden. Depending on who you ask, the recommended minimum rate of air replacement for an indoor garden (the amount of time taken to evacuate the total volume of your garden) is anywhere from
1 to 5 minutes
.
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.
When should I add CO2 to my grow room?
When adding CO2 to your grow room, the flowering stage is the most important. Adding CO2 to your grow room, especially
in the first 2-3 weeks of flowering
, can kick start flower production and boost flower size significantly.
