fan help

[ozzyoutdoors]

hey guys

got a few outdoor\indoor goin on,out during the day at 7am in the tent at 7pm,just to give us a smoke

 

got a fan running when there in,but alot of moisture in the mornings,got a couple of 4inch fans,to put in

 

so question,do i have the fan pulling air out at the top or bottom??

 

cheers people.

 

 

[Ford Fairlane]

gday Ozzyoutdoor.

 

Hot air rises, thus, the extraction fan goes at the top, intake at the bottom.  an intake fan is often not necessary, as the outlet fan will pull air into the room from a passive inlet

[ozzyoutdoors]

hey ff

 

yea was gonna work on that therory,hot air rises

 

just got a normal fan pushing air round in there just need the one to pull her out

 

too easy

 

had some hydys goin a few times,never had much luck really

allways do better outdoors.prefer outdoors anyways really

 

cheers

[henheman]

gday Ozzyoutdoor.

 

Hot air rises, thus, the extraction fan goes at the top, intake at the bottom.  an intake fan is often not necessary, as the outlet fan will pull air into the room from a passive inlet

What do you mean by passive inlet? I have a tent and looking atget an 8 inch ducting and fan, but how do i get air intake without releasing smell?

[Knarfman]

I have a 8inch system running in my 2.4 x 1.2 x 2.0 tent on a speed controller. And even at the lowest setting it runs enough to suck in the sides of my tent. If the fan is running with the vacuum sucking air in through my passive inlet nothing gets out. But if I turn the filter off then you do get smell though the passive entry, so it means the moment they start to smell the fans on all the time.

 

I built a window mounted air box with light traps. The exhaust goes out the top of the box and the inlet for my tent is connected to the rest, this way I'm pulling fresh air in all the time. I have the 8 inch inlet going from the window in through the side vent that was in the tent and sealed up with silver tape. Eventually when I setup the veg/auto tent the 2 tents will be connected and both running the off the same filter but with a small 4 inch fan add to the fresh air duct to force outside air in.

[Ford Fairlane]

What do you mean by passive inlet? I have a tent and looking atget an 8 inch ducting and fan, but how do i get air intake without releasing smell?

Passive inlet= no fan on the inlet. The smell doesn't escape because the outlet fan is constantly pulling air through the opening at the inlet.

[grow for me]

Gday all my local hydrponics store owner wants me to buy 2 hyper fans 300 bucks a pop. 1 is for extraction the other for inlet. My tent is only 1.4 by 1.4 by 2.4 he wants me to get 2 6 inch hyper fans. I'm thinking 1 for extraction is enough with a passive air intake. What do you all recommend

[Sixty-Eight]

last time i was in a hydro shop i asked the bloke to test a few of the fans he had laying around one was the hyper 6" fan fuck it moves a fair amount of air for its size but its very loud, it does come with a speed controller so u can turn it down as much as u need tho

 

1 is plenty for your room

 

 

[Dingo-2008]

What Sixty Eight said is about rite,1 of them hyper fan  would be plenty to as it will move around the same amount of air as a 250mm-Max-Can-Fan,As I have a 250mm-Max-Can-Fan,An that fan is in a grow room  {2mt X 3mt X 2400mm high } an move plenty of air to keep my room cool an supply it with plenty of fresh air.

 

But I do have another 250mm fan sucking fresh air into the grow room if the weather gets to hot.

 

If you live where to weather gets very hot you may need another fan to supply fresh air into the grow room.

 

But you will find that the one  250mm hyper fan will be plenty as you will most likely need to use the fan speed control to slow the fan down to suck less air into your grow room as the wall will most likely be sucked in.

 

Hope this info helps you.

 

  Regards Dingo-2008. 

[grow for me]

thanks fellas i thought about as much. he was saying something about a vortex being created inside the room if i didnt use the intake fan. saying that i may suck to much out with just the extraction but im thinking thats what the fan speed controller is for haha thanks again fellas one fan it is i think.