Properly ducting a grow room
- Thread starter smokajoe
- Start date
Bulbasaur
Member
its better to pull then push, just make sure its properly sealed, you want your fan as close as possible to the exhaust port. <3 pression
if you are using a cooltube (or any air cooled hood) its better to have filter > light > fan> exhaust, theres also: inline port > light> fan> exhaust and you use a second fan filter for the odor
you want your ducting to be as straigth as possible, bending greatly reduces airflow, you also want to keep it as short as possible, also its better to have a straight pipe out of metal then a flexible duct as the flexible duct lose air flow with the curves, which make this duct solid and flexible
if you have to use a flexible duct, then use one
if you are using a cooltube (or any air cooled hood) its better to have filter > light > fan> exhaust, theres also: inline port > light> fan> exhaust and you use a second fan filter for the odor
you want your ducting to be as straigth as possible, bending greatly reduces airflow, you also want to keep it as short as possible, also its better to have a straight pipe out of metal then a flexible duct as the flexible duct lose air flow with the curves, which make this duct solid and flexible
if you have to use a flexible duct, then use one
Bulbasaur
Member
pushing through the lamp reduces the airflow compared to pull you lose about 15% airflow, it can be worse
pression is your best friend, i dont have facts to show, but its what everyone do and also what my logic tells me, i dont use air cooled hood, when i started growing i had this setup: filter> fan > duct> exhaust, it created a big air pocket in the flexible duct. if i would have pull through the duct that air pocket would never have happened, nonetheless it still did the job
test the error i did on my first grow and you will understand why we pull (newb setup was: filter > fan (pulling tru filter) >flexible duct > exhaust
this guy puts it nicely post #9
https://www.rollitup.org/grow-room-design-setup/150063-air-cooled-hoods-push-pull.html
pression is your best friend, i dont have facts to show, but its what everyone do and also what my logic tells me, i dont use air cooled hood, when i started growing i had this setup: filter> fan > duct> exhaust, it created a big air pocket in the flexible duct. if i would have pull through the duct that air pocket would never have happened, nonetheless it still did the job
test the error i did on my first grow and you will understand why we pull (newb setup was: filter > fan (pulling tru filter) >flexible duct > exhaust
this guy puts it nicely post #9
https://www.rollitup.org/grow-room-design-setup/150063-air-cooled-hoods-push-pull.html
Bonzi Lighthouse
Well-Known Member
I fucking love Drawing
Bonzi Lighthouse
Well-Known Member
Actually cutting down the speed on some fans will make them louder.
Bwpz
Well-Known Member
Well he told me that fact about the C.A.P. ValuLine Inline Fan, can't vouch for others
Bwpz
Well-Known Member
http://www.ezhydroshop.com/c-a-p-valuline-8-inline-duct-fan-745-c-f-m-1-7-amps/
It was that fan, they said if I got that instead of the 6" and cut it down to half speed it would be quieter. No, it's not marketing, they save me money wherever they can, they're good people
I saw someone on here who had one that looked kinda like that one, I'mma go ask them about it.
It was that fan, they said if I got that instead of the 6" and cut it down to half speed it would be quieter. No, it's not marketing, they save me money wherever they can, they're good people
I saw someone on here who had one that looked kinda like that one, I'mma go ask them about it.
i got one from htgsuPPLY AND ITS PRETY QUIET THE 4" INLINE sorry for the caps new keyboard but i have it hanging from a bungee cord so it just whirrs and vibrates a little
Bonzi Lighthouse
Well-Known Member
Any manufacture should have a statement like:
Speed Controllable: Yes
also look for db rating or the IMO subjective SONES rating
Speed Controllable: Yes
also look for db rating or the IMO subjective SONES rating
Bwpz
Well-Known Member
I've looked at many a fans, and none of them has provided the db's, but I guess I've been looking at small ones.
Bonzi Lighthouse
Well-Known Member
When mine kicks on I'll cut it in half and see.http://www.ezhydroshop.com/c-a-p-valuline-8-inline-duct-fan-745-c-f-m-1-7-amps/
It was that fan, they said if I got that instead of the 6" and cut it down to half speed it would be quieter. No, it's not marketing, they save me money wherever they can, they're good people
I saw someone on here who had one that looked kinda like that one, I'mma go ask them about it.
Bwpz
Well-Known Member
Is that the fan you have? Just wonderin
Bonzi Lighthouse
Well-Known Member
You have to dig deep and find it on the manufacturers web site.
Bonzi Lighthouse
Well-Known Member
Bwpz
Well-Known Member
493 CFM for $225? That's outrageous haha
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