My Setup came give me some thoughts

[Inuart88]

Its all together and hooked up missing one pipe clamp gotta run to hardware store and get it! waiting on my clones now!

[Beach_Town_Brit]

Build day is so much fun (but perhaps not quite as much fun as scissor hash day)

I found that mounting my fan inside the tent helps reduce noise a bit, as does suspending the fan unit with bungie cords.

Good luck with those clones.

[NebulaHaze]

Great tips about keeping an exhaust fan quiet! I also hang my exhaust fan from inside of the tent (I have mine hanging from rope ratchets) and that made a huge difference in the amount of noise It also helps keep the exhaust system working far better if the fan is close to the grow light/heat source (like Potted said below)

[Potted]

It's like the Brit said, also the fan pulls better the closer it is to the light or pushes if you put in front of light and hang it there instead.lol

[Inuart88]

alright i will hang it in but i will have to get some brackets it did come with some rachet things though. i just made it a sealed system and the temp is finally dropping was at 83f

[William and Sue Ashley]

Its all together and hooked up missing one pipe clamp gotta run to hardware store and get it! waiting on my clones now!

Looks like you have done some research....I have the same lights....2 and same ballast and all that....39 days 27/7....running like a champ...Good Luck...Its Fun......(DWC)...next time...Autos.....Peace.....

[Inuart88]

hours of research and reading reviews and this and that and this and that ahhh so worth it though!

[bobsakamoto]

hey, those of you that have fans hanging inside....

i've read that it's better to pull the air out of the light....but i've also read (fewer reports) that say you should push the air through and across the light....does it matter? what are the considerations in play?

thank you!!

[NebulaHaze]

I've always heard that it's better to pull hot air out of the light. For example that's why on computers you have fans pulling air out instead of pushing it in. Pushing air in also increases the amount of dust that goes in compared to a passive air intake.

But... although I've read from other growers (and only seen it this way in grow rooms) I have to admit I've never tried it both ways myself to see how big of a difference it actually makes.

I'd love to hear from other growers about this! It's easy to get caught up in "it's always done this way" but real experiments are even better!

[007]

The dust would be mitigated by having to mount the carbon filter on the intake of the fan. You could have the filter outside the tent with the fan pushing through it but then youve got a carbon filter sitting outside the tent, and your fan sucking up whatever comes in the tent.

[Inuart88]

so would i put a duct from the light into the fan then out the tent?

[South Sierra Dude]

To me It's worth ducting the light all c the c way and running ducts in and out as well. Eliminates light leaks and makes the tent run cooler. .02

[NebulaHaze]

This is generally how it's recommended to set up your exhaust (though there are definitely variations!). The main goal is to have the air go in a short, straight line if possible.



This is what mine looks like inside the grow tent. The fan is hung from the top of the tent so it's positioned right next to the exhaust hole, and ducting connects the light to the fan. There's a lot of extra ducting in this picture, and I have since cut the ducting shorter so there's less slack. The less ducting the air has to go through, the more efficient the system! But even when it was like this is worked very well.



Then I have their hot air go out through a window through bamboo curtains (which lets air through but not light).

I wrote a little more about it here (with pictures and videos), along with a few other ideas for making a stealthy exhaust.

I'm not sure if it helps, but I also made a little "cheat sheet" for exhaust systems

[bobsakamoto]

NebulaHaze 007 South Sierra Dude thank you for the info, very helpful and precise...

[Tika]

WAHOOO! Congratulations and great set up. Such an exciting time. Spring Forth!!!

[Inuart88]

clones are on there way!!!!!!

[fozzy]

Dude you are on your way! Congrats! Looks really really good!

[Inuart88]

Clones have come at las t also changed my vent to pull from top of tent creating a vaccum pulling in air through to bottom these clones are a month old so first week of veg my little guys are 1week and a day behind from seed. my tent will take 9 7 gallon smart pots so i have 9 here i think i can make it work

[Inuart88]

should i cut off the light burned leaves at the top or just leave em?

[Inuart88]

Yeah i realized that this morning lmfao i think i worry to much sucks when you have nothing else to do

[NebulaHaze]

It just means you care! And you can tell from looking at your healthy plants that you care

[Inuart88]

Its just that first time grower fear i did remove the big ass fan leaves on my fire og to get the bottom hit by light seems to be doing fine. thought i might shock it

[Inuart88]

Just picked up a turbo cloner and got my bytes and ppm meter ready to cut some clones