CamperDon

Good morning,

A 4" inline duct "booster" fan would be a great item for my passive intake snorkle that will go into the flower cab but, not with an attached (of any size) carbon filter.
I was going to buy two of these 4 inch inlines to be installed in both the passive snorkles that run from a window to flower cab & under-desk-grow area.
A larger floor mounted blower (from an forced air heater unit) will exhaust the entire room into my living space through existing ductwork during the winter.
But, to move air through a carbon filter requires more pressure than the little 4 inch inline can push and that little 4 inch filter you are looking at probably will not last one flower session of keeping the aroma of your flowering cab to a minimum if at all. The extra expense of buying a new filter or restocking the carbon with new carbon will add to the overall expense of your grow yearly. Things to think about while designing

Have a Great day
don

compresso

smaller stores can not afford to liquidate every season so they tend to have OFF SEASON stuff i like to shop local too i have found all kind of goodies at smaller stores

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"mj is always a medicine it's just sometimes used for people who's lives are otherwise unsatisfactory"

sounds like a anti-depressant to me

xtensity

The only problem I have is that $100 fan I found.. it says it's a 4 inch fan but how big is it in size comparison to say a ruler or something?

I don't want to go buy it if it wont fit in my container that I have lol. I mean could probably get a bigger container to mod up but I still want to know how big these things actually are.

kontroversy

They are about 12" diameter.

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xtensity

Wtf? Then what does the 4 inch apply to?

kontroversy

The size ducting it accepts.

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xtensity

What about these... they look to just be long but still 4 inches in diameter

https://fifthseasongardening.com/cat...roducts_id=683

slowthestone

Those plug n play 4'' duct fans are horrible. They move just 30 cfm, wobble like crazy...vibrate way too much, and generally do nothing other than take up space.


You truly are better off purchasing a desk fan and modding it to your needs.

xtensity

I guess i'll get the bigger $100 one and just upgrade my container size or something.

CamperDon

Good morning,

wtf is a plug 'n' play fan???

Those 4 inch In-Line Duct "booster" fans are 4" in diameter and about 12" long maybe and they are used to push air through longer duct runs. I believe they are meant to assist a larger fan moving air down a longer run of ducting.
Not meant to run stand alone although if all your Intake was passive, I don't see why this little unit wouldn't assist that better.
My idea of getting two of these to aid the passive Intake to my flower cab & under desk grow (mothers/taller clones) area that will be exhausted using thermostatically controlled blowers into the room that is than exhausted through a floor mounted blower set over the existing ductwork.
If all you had was a passive setup 80 cfm would be a big improvement in my eyes, wouldn't it??

Good luck & have a Great day
don