Help with ventilation please.

T

TheGrinchMan

Member
Hey I have a 1x1x2 tent with a single 6" inline fan on the outside fed through the top 6 inch hole with ducting into the tent. It sucks air straight from Outside Into the tent.
I have no other fan in the tent. It is pressureised in there atm with only a small hole at the bottom open for exhaust. My plant is looking a bit hot and wiltered.
Do you reckon it would be better to have the fan sucking hot air out and just open a vent and put a normal fan in there to move air around and open a hole for fresh air to come in? The 6 inch fan Definatly is enough to bring/push air in and out I just am not sure if I should have it the other way around.

Also should I put the fan inside the tent? Rather than attached with ducting fed into the tent.

Any ideas greatly appreciated.0
 
Banana444

Banana444

Well-Known Member
Inline fans work best pulling air. So if you are only using one inline fan, it should be at the end of the ventilation system. It shouldn't matter whether the fan is mounted directly to your box or connected with ducting. See examples of people using pc fans for ventialtion on small scale grows. You also want a fan circulating air within your box. You don't need to draw air from outside, unless its for temperature control. You will also need an air intake. It can be passive (just a hole) or active (another inline fan). If I'm understanding correctly, it sounds like you have a fan pumping air into and enclosed box, presurising the box, so the hot air doesn't have anywhere to go. If you simply put a hole in the box it would move air through your box and lower temps but the fan at the end of the vent system works best.
 
fir3dragon

fir3dragon

Well-Known Member
TheGrinchMan said:
Hey I have a 1x1x2 tent with a single 6" inline fan on the outside fed through the top 6 inch hole with ducting into the tent. It sucks air straight from Outside Into the tent.
I have no other fan in the tent. It is pressureised in there atm with only a small hole at the bottom open for exhaust. My plant is looking a bit hot and wiltered.
Do you reckon it would be better to have the fan sucking hot air out and just open a vent and put a normal fan in there to move air around and open a hole for fresh air to come in? The 6 inch fan Definatly is enough to bring/push air in and out I just am not sure if I should have it the other way around.

Also should I put the fan inside the tent? Rather than attached with ducting fed into the tent.

Any ideas greatly appreciated.0
Click to expand...
fan inside the tent, sucking air in and vent your ducting outside the tent either in roof walls or floor. Depending on room temps, and your setup you might be able to get away with venting in the same room.
 
T

TheGrinchMan

Member
Banana444 said:
Inline fans work best pulling air. So if you are only using one inline fan, it should be at the end of the ventilation system. It shouldn't matter whether the fan is mounted directly to your box or connected with ducting. See examples of people using pc fans for ventialtion on small scale grows. You also want a fan circulating air within your box. You don't need to draw air from outside, unless its for temperature control. You will also need an air intake. It can be passive (just a hole) or active (another inline fan). If I'm understanding correctly, it sounds like you have a fan pumping air into and enclosed box, presurising the box, so the hot air doesn't have anywhere to go. If you simply put a hole in the box it would move air through your box and lower temps but the fan at the end of the vent system works best.
Click to expand...

Got a pic?
 
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