Y splitter for exhaust

[drsaltzman]

Will it work or will the pressure from each exhaust fan cause problems for the other?
I have one 6 inch hole in my wall to vent outside.
Don’t want to make another one if I can help it.
2x4 tent has a 240cfm fan and I’ll put a 480 in the 4x4 tent I’m buying.
Anybody doing this?

 

[Holodaze]

Size needs to increase after the y. For instance, 4 inch duct from both up to the y and then would need to step up to 6". Back flow preventors prior to the y... so when one kicks on it doesn't push into the other line....if not the same tent an inline filter for pest...

 

[Hollatchaboy]

Will it work or will the pressure from each exhaust fan cause problems for the other?
I have one 6 inch hole in my wall to vent outside.
Don’t want to make another one if I can help it.
2x4 tent has a 240cfm fan and I’ll put a 480 in the 4x4 tent I’m buying.
Anybody doing this?

I don't know for sure, but I'm gonna say there will be problems.

 

[drsaltzman]

Size needs to increase after the y. For instance, 4 inch duct from both up to the y and then would need to step up to 6". Back flow preventors prior to the y... so when one kicks on it doesn't push into the other line....if not the same tent an inline filter for pest...

The only tent connection will be at the Y. They’ll have separate ducting.
So I’m thinking pests not gonna be an issue as long as both fans running 24/7.
Or is that not a good assumption?
The step up makes sense. I can do that.
Worse comes to worse I’ll break out the hole saw.
Hoping not to have to.

 

[Hollatchaboy]

The only tent connection will be at the Y. They’ll have separate ducting.
So I’m thinking pests not gonna be an issue as long as both fans running 24/7.
Or is that not a good assumption?
The step up makes sense. I can do that.
Worse comes to worse I’ll break out the hole saw.
Hoping not to have to.

I know your struggle.

 

[redi jedi]

One 6" fan could easily handle both tents. Or go with an 8" and turn it way down. Open or close passive vents to dial in each tent.

 

[Renfro]

Put one fan on the wye and connect it to the exhaust run. Then run from wye to each tent with "sucker hoses".

 

[Midwestsmoker419]

Put one fan on the wye and connect it to the exhaust run. Then run from wye to each tent with "sucker hoses".

This is what I did in the past when I needed it.

 

[Hollatchaboy]

That definitely works, but what if you need to exhaust 2 tents at different times?

 

[Herb & Suds]

You can't widen the opening to eight inch?

 

[Hollatchaboy]

I'm exhausting out of a attic vent. I only have one, but I have 2 tents i need to exhaust.

 

[Midwestsmoker419]

That definitely works, but what if you need to exhaust 2 tents at different times?

My exhaust runs 24/7

 

[Hollatchaboy]

My exhaust runs 24/7

I need my flower tent exhausting 24/7. My veg i have on a timer. I can't exhaust both out of the same roof vent.

 

[Renfro]

That definitely works, but what if you need to exhaust 2 tents at different times?

You could install electric dampers on the tent runs.

 

[JoeBlow5823]

Will it work or will the pressure from each exhaust fan cause problems for the other?
I have one 6 inch hole in my wall to vent outside.
Don’t want to make another one if I can help it.
2x4 tent has a 240cfm fan and I’ll put a 480 in the 4x4 tent I’m buying.
Anybody doing this?

Should work just fine. a 6'' hole should be able to handle that. i think these guys are overthinking it.

 

[WillieBill]

I have 3x3 veg tent ducted to a 3 x 5 flower tent. It goes out the wall from the 3x5. 6" fan and always on/ Works very well.

 

[Hollatchaboy]

You could install electric dampers on the tent runs.

I'll look into that. Thanks.

 

[Renfro]

I'll look into that. Thanks.

You may find it costly enough to warrant just putting in a second fan but if you are limited to one exhaust duct going out of the house then I would want one fan feeding that and pulling off multiple sources using dampers on temperature controllers/timers as required.

 

[Renfro]

The absolute best thing you can do to optimize the performance of your ventilation system is to use galvanized snap seam instead of the slinky hose shit and keep runs as straight as possible bends really hurt performance. Seal the galvanized snap seam with duct mastic or aluminum tape.

 

[Nizza]

butterfly style backdraft dampers would work