Venting and Grow Room efficiency ( get your Ducts in a row)

People that haven’t been trained simply don’t understand Air and Cooling so I am going to attempt to help out.
First some things I see commonly done wrong by growers.

A window unit goes into a window. It is not designed to be ducted with cardboard or vented into a garage. These things work marginally at high temps and without proper air flow all they do is use energy. I was at a grow this weekend that’s improperly vented and the power bill is 600 where it should be 300. That’s 3600 a year wasted that could go to making it work properly there fore saving money every year.

That will pay for a mini split that uses ½ the electricity as a window unit.

Think Green in your grow room!

Moving Air is a lot cheaper than chilling it so if your hoods are hot then your venting system sucks. You should be able to hold your hands on your hoods and glass and not have to move them. If they are generating heat then your now paying to Chill the room and that cost a lot more.

A 1200 CFM vortex uses like 1 amp a 10,000 btu ac uses like 8

Air is a Fluid! Think of it as water. Everyone go look at there venting flex if water was running through it would it cavitate and restrict and all those bends without elbo’s? So does air you just cant see it. Air has friction and just like any fluid just less but its still a huge factor in venting.

Lets look at the proper way to vent a closed system.



Lets explore


WE want to install a hard pipe system as our main trunk line this will prevent friction flex is used only as short connecting tubes.

Ok I cut a 8" Dryer Vent in and tore off the flapper and cover.

We then attach a 8" elbo and a 7 foot section of pipe to go from down low to up high.


At the top of the cieling below the plate we come through with the 8" duct using an elbo 8"

As this duct passes through MzJill's hydro room we chop in a 4" hole to provide fresh air for her hood. Being close to the intake it will get lots of good clean fresh air and stay cool even with the smaller duct.

Originally Posted by subcool

Before I answer how would you filter this air of pest and spores??

What is the source of the air?

Sub

i have a hepa air filter on my intake. source of air? um air? it comes from the outside, but not like you would think. it still lingers in the room...... but i put a window fan in the window to create air exhanges in the room. that is independant from the cab's ventilation as i dont want to be exhausting and intaking the same air...so i thought the window fan would work

i grow in a cab. about 71.5" h 59" w and 20" d

the cab is broken down into different areas. i have supreme ventilation (so i think) but i want to increase the airflow to make sure there wont be any possibility of mold due to the fact that im sog'n and place anywhere from 8-16 small single cola plants in a 40" x 20" space (flower chamber).

i have a 6" exhaust fan in the flowering room. the exhaust and the scrubber also hooks to the mother and daughter chamber.

i want to get a bigger fan (my intake is currently a 4") and possibly route more air under the canopy.... will my bigger intake create smell problems and other problems for my exhaust fan?