is an intake fan really important??

i really am pushing it with the noise at the minute, will i be losing out on yeild size if i dont use a intake fan, in my grow tent i have a extraction fan plus i have 5 oscallating fans to cool the plants.

yeah an intake fan is important u need to keep fresh air coming in with new co2
why not sacrifice one of your oscilating ones 4 the intake and just have that blowing over them

fresh air, and air flow is a good thing to have .....

jim1985 said:

i really am pushing it with the noise at the minute, will i be losing out on yeild size if i dont use a intake fan, in my grow tent i have a extraction fan plus i have 5 oscallating fans to cool the plants.

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I don't have an intake fan, just a passive intake near the bottom of the grow.

Oscillating fans may cool humans, but they don't cool plants. You need to exhaust the heat, not blow the air around the grow.

If you have an extraction fan and it is pumping air out of the tent, then obviously air from elsewhere is coming into the tent... (You can't create a vacuum if that is what you're worried about.) If your tent is sealed too tight (which I think is pretty hard to do) then the air will move more slowly... Just add a little hole on the opposite side of your tent (from the extraction fan) if you feel the air is not moving as fast as it should. (I believe your out-going fan should move an amount of air equal to the volume of your grow area in 4-5 minutes. Passive air intake should be enough for most people, unless you have a really large grow.

Also the fans DO cool the plants... just like with humans, fans help plants and humans release moisture/gases quicker... and when a plant is hot they need to get rid of a lot of gas and water vapor and the fans aid in that process.

Green Cross said:

I don't have an intake fan, just a passive intake near the bottom of the grow.

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Me neither. Passive intake works fine for me.

I shoulda read more closely .... yea passive can be fine in terms of recharging the air ....