Open loop or closed loop also known as a sealed room.
Sealed grow room vs vented.
There are two different ways to set up a grow room.
None of the air venting the lights ever comes in contact with the room.
I have found no benefit to venting sealed co2 enriched grow rooms.
Although this is a sealed room its essential to vent the room at least once per day in order to refresh the air get rid of ethylene alcohol build.
All sorts of lighting are available for supplementing the sun with an outdoor grow including the usual metal halide high pressure sodium plasma etc.
This is known as ventilation or air exchange.
If humidity co2 temperature and proper in room air movement osc.
The second is safety.
Your air run from another room or outdoors through the lights and vents outside of the grow room outdoors.
Grow room marijuana garden i was recently telling a buddy about the worst possible situation a medical marijuana grower can face.
Air vented or totally sealed.
06 jul 2014 22 oct 2014 eljay leave a comment grow room buildout grow modules articles grow room.
In this very quick video i show my vent system.
Vented lights for a sealed room environment can work at times but can reduce production value up to 30 percent from the light bulb due to being behind a plate of glass and the fact that light.
An open loop system has open ventilation or a fan pushing air into the room and another fan exhausting air out of the room.
The first is efficiency.
With full control of my grow room s climate there is no need for venting unless something like catastrophic equipment failure causes it.
This way co2 you pump into the room stays in the room and is not vented out.
Co2 only works at very high levels which means you need a sealed grow room or grow tent setup in order to get the concentration high enough to be worthwhile.
Fans and scrubbing are provided adequately i have not vented a sealed.
Co2 injections require a sealed grow room for two very important reasons.