This will work right? 4x4x8 tent vent question...

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OldDogNewTricks

Member
I am new to the tent game.
Things are going great but I'm betting the little lady is going to want me to upgrade to a filter system soon.

Currently have 3- 220cfm booster fans running.
1 on HPS and 2 venting tent.

Even with a 315w cmh in a wing it stays nice and cool.

Here's my thought on a filter system. Keep in mind it doesnt have to be 100% smell proof.

Looking at a 8" 720cfm system with filter. And getting an air cooled hood for the CMH too.

1- 220cfm booster fan on each dedicated inlet for the lights.
They are 6".

So 2- 6" exhausts running out of tent to a 6x6x8 wye, connected to a 8x8x8 wye with an 8" exhaust coming out from tent for its exhaust.
Then 720cfm fan to finally the filter.

Anyone see an issue with this?
 
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OldDogNewTricks

Member
Nevermind.
Think I'll try running intake->booster->hps->cmh->6x6x6 wye inside tent with fan and filter outside...

That would leave me with 2 extra 220cfm boosters to use for intakes where needed so I think I'll be good with the 6" 440 cfm system.

Edit...bleh no. That wont give negative pressure so the 8" it is!
 
Last edited:
coreywebster

coreywebster

Well-Known Member
Hard to follow your logic.

Correct way to do it if its one tent and two lights.

Filter>fan>light>light>out

or

Filter >light>light>fan>out.

Not seeing why you need any duct boosters.
 
evergreengardener

evergreengardener

Well-Known Member
So a 720cfm fan and three 220cfm is what you’ll be running? Seems like a ton of air for a 4x4. I agree with above just put fan on filter and set it on the floor it’ll take care of most of the smell
 
ilovetoskiatalta

ilovetoskiatalta

Well-Known Member
OldDogNewTricks said:
I am new to the tent game.
Things are going great but I'm betting the little lady is going to want me to upgrade to a filter system soon.

Currently have 3- 220cfm booster fans running.
1 on HPS and 2 venting tent.

Even with a 315w cmh in a wing it stays nice and cool.

Here's my thought on a filter system. Keep in mind it doesnt have to be 100% smell proof.

Looking at a 8" 720cfm system with filter. And getting an air cooled hood for the CMH too.

1- 220cfm booster fan on each dedicated inlet for the lights.
They are 6".

So 2- 6" exhausts running out of tent to a 6x6x8 wye, connected to a 8x8x8 wye with an 8" exhaust coming out from tent for its exhaust.
Then 720cfm fan to finally the filter.

Anyone see an issue with this?
Click to expand...
I think you will be pleasantly surprised with the cmh and temps. I doubt you will need to air cool the hood. I have had 3-315cmh(Hortilux bulb hung vertically) in a 4x8 with a 10" mountain air on a 8" 745cfm fan on a variac. There is a 4" inline for intake on a variac to keep pressure. The temps do not exceed my room temperature by more than 1 degree.
 
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