Carolinamike71
New Member
I have a 1000w hood cool grow light with 4” fan and carbon filter and looking for the best way to connect all three
New grower
- Thread starter Carolinamike71
- Start date
green_machine_two9er
Well-Known Member
Flex duct from grow store and duct clamps.
lusidghost
Well-Known Member
I would assume filter > light > fan > the great wide open.
coreywebster
Well-Known Member
I'd go filter > fan > hood> outside
That avoids the fan sucking air through leaks in the hood and the air no being clean.
4" for a 1000w light isn't much airflow but depends on circumstances
That avoids the fan sucking air through leaks in the hood and the air no being clean.
4" for a 1000w light isn't much airflow but depends on circumstances
OldMedUser
Well-Known Member
If you have the fan before the hood air will leak out all over so filter→hood→fan→outlet
I hang my 6" exhaust fan on a bungee cord to have no vibration. I don't use my cooled hood and bought a 600cfm carbon filter 6 or 7 years ago and never used it but it's sealed up good so should be fine if I need it. Air pump on a soft spring for the same reason.
I hang my 6" exhaust fan on a bungee cord to have no vibration. I don't use my cooled hood and bought a 600cfm carbon filter 6 or 7 years ago and never used it but it's sealed up good so should be fine if I need it. Air pump on a soft spring for the same reason.
Billytheluther
Well-Known Member
If you have the fan before the hood air will leak out all over so filter→hood→fan→outlet
I hang my 6" exhaust fan on a bungee cord to have no vibration. I don't use my cooled hood and bought a 600cfm carbon filter 6 or 7 years ago and never used it but it's sealed up good so should be fine if I need it. Air pump on a soft spring for the same reason.
View attachment 5262427
Wouldnt that air be purified? A agree with filter fan hood
coreywebster
Well-Known Member
It's an age old argument really.If you have the fan before the hood air will leak out all over so filter→hood→fan→outlet
I hang my 6" exhaust fan on a bungee cord to have no vibration. I don't use my cooled hood and bought a 600cfm carbon filter 6 or 7 years ago and never used it but it's sealed up good so should be fine if I need it. Air pump on a soft spring for the same reason.
View attachment 5262427
But pushing air through, if there's leaks in the hood which there are without a bit of tweaking, then the air ends up back in the tent. But sucking air through can pull unclean air that's avoided the filter and then stinks where ever the exit point Is..
For me that out of the question.
But for many a bit of a whiff wouldn't be an issue.
Can easily enough fix leaks in a hood though.
OldMedUser
Well-Known Member
Yes it would be purified. See my next post in here.
OldMedUser
Well-Known Member
This is what I get for answering a post when I should have gone to bed a couple hours earlier.
I have used my air-cooled hood as a reflector but never hooked up for cooling and until you mentioned it wasn't thinking about how those leaks would work both ways. With the restriction of the filter it would pull even more untreated air thru the leaks than it would push treated air thru depending on how much back pressure downstream and stinky exhaust would ensue.
I prefer open bat-wing style reflectors as heat is not an issue for me in my cool basement grow room. I'm on an acreage far from anyone smelling my grows unless they drive into my yard and come to my door. Now with growing being legal I don't much care if they get a whiff. I should sell that carbon filter I paid $170 for a few years back.
I'm curious about what would be good to use to seal leaks on such a hood. I didn't even use the glass in mine when I used it with a 1000w HPS and there's lots of air moving around the room directed above the canopy but that damn thing got really hot.
I stand corrected sir!
coreywebster
Well-Known Member
Most of my air cooled stuff was cooltubes and to be fair they came pretty well sealed but I had some that were poorly sealed so simple silicone worked fir those.This is what I get for answering a post when I should have gone to bed a couple hours earlier.
I have used my air-cooled hood as a reflector but never hooked up for cooling and until you mentioned it wasn't thinking about how those leaks would work both ways. With the restriction of the filter it would pull even more untreated air thru the leaks than it would push treated air thru depending on how much back pressure downstream and stinky exhaust would ensue.
I'm curious about what would be good to use to seal leaks on such a hood. I didn't even use the glass in mine when I used it with a 1000w HPS and there's lots of air moving around the room directed above the canopy but that damn thing got really hot.
I stand corrected sir!
In veg I had a proper air cooled hood, that had like rubber seals where the glass met the metal. And the joins where it was tack welded.
I used aluminium tape over all those . It's pretty strong, sticks well but when you need to open them back up to swap bulbs or clean inside glass you can slice through it really easy.
You could probably seal it with a sealant but that would be messy when you finally had to change bulbs.
I agree, I always preferred open reflectors. But when you really need air cooled you really need em.
medidedicated
Well-Known Member
I was fine using any configuration. Filter inside or outside the tent. It is the negative air pressure that matters IME.