help with picking a new light, need to make a quick decision
- Thread starter Splinter7
- Start date
twentyeight.threefive
Well-Known Member
Using a 6 inch fan and filter for a 5sqft tent is overkill. Have you considered putting the filter outside the tent?
Splinter7
Well-Known Member
All air goes outside....I have to pull on the filter. I am running a 6 because the 195cfm isn't good enough. I need about 250 to 280cfm, I have a couple other constraints relating to ducting holes that create some drag on the system.
twentyeight.threefive
Well-Known Member
Are you venting like 50 ft away?
Splinter7
Well-Known Member
i was having heat issues. it's 110f outside. house is like 70f.
PadawanWarrior
Well-Known Member
Sounds like you want a fan with a high static pressure rating.
twentyeight.threefive
Well-Known Member
I’m confused. Is your tent outside? What does the outside temperature have to do with needing a larger inline fan?
Splinter7
Well-Known Member
apparently you don't live where i do. even though the thermostat may say 70, a closet on the edge of the house under the sun with two 270w lamps in them and another 150w of other devices is a lot of heat. the heat is not in one tent...i have two.
Splinter7
Well-Known Member
i have a 440cfm turned all the way down...it works well.
PadawanWarrior
Well-Known Member
That's with 0 static pressure. As the pressure rises the CFM drops. Meaning the longer and more turns the duct has, the more pressure it takes to push the air.
This is the fan I like if you want a high static pressure rating. I exhaust from my closet outside with 25 ft of duct. Even if you don't like this fan it shows what I'm talking about. A lot of fans don't rate their stuff like Vortex does. Oh, and the green Active Air ones are pretty similar, but cheaper.
Vortex Powerfans - VTX600
vortexpowerfans.com
But hey if yours works fine, I don't know what we're talking about,
twentyeight.threefive
Well-Known Member
The closet is in the sun? Like a skylight?
Oh you didn’t say you had two AC Infinity lights in your 1.6’x3’ tent. You didn’t mention another tent either. You should have separate inline fans for each tents exhaust with separate exhaust exits from the house.
Regardless the outdoor air temperature is irrelevant in selecting a proper inline fan.
Splinter7
Well-Known Member
That's with 0 static pressure. As the pressure rises the CFM drops. Meaning the longer and more turns the duct has, the more pressure it takes to push the air.
This is the fan I like if you want a high static pressure rating. I exhaust from my closet outside with 25 ft of duct. Even if you don't like this fan it shows what I'm talking about. A lot of fans don't rate their stuff like Vortex does. Oh, and the green Active Air ones are pretty similar, but cheaper.
Vortex Powerfans - VTX600
But hey if yours works fine, I don't know what we're talking about,
the one i have is the vivosun. i don't know what the chart of it looks like, but it is similar in cfm rating and is way overpowered. i don't really have a heat issue now that i used a 6inch. i had another 6inch from the hardware store that people use for AC stuff, but it was not nearly powerful enough. once i put a carbon filter on their i will be glad i had the extra power.
Splinter7
Well-Known Member
i have two tents in a closet, one light in each and an ac between them. there is a pic in the thread. ambient conditions impact the closet base temp. the central ac is not connected to the closet. not sure what you are on about...after about 10pm the closet temp drops over 10 degrees
PadawanWarrior
Well-Known Member
You know that ac is adding heat unless you're exhausting that outside?
Splinter7
Well-Known Member
of course it is exhausted outside. this isn't my first grow at all lol been doing it on and off for 20 years. not all were great.
pahpah-cee
Well-Known Member
That response by them is weak. They should wait for the actual engineers to respond instead of making customers uncomfortable.
I’d image that the LED drivers are designed for 240watt but have a set tolerance of what is acceptable and not acceptable for operation. My stoned math tells me this is only a 12.5% difference in watt output.
in the spirit of talking out of my ass I’d image that the engineers intended for the product to over shoot the goal of 240watts by an acceptable tolerance. As a consumer I’d rather have a light operation brighter than marketed as opposed to weaker than advertised.
I’d image that the LED drivers are designed for 240watt but have a set tolerance of what is acceptable and not acceptable for operation. My stoned math tells me this is only a 12.5% difference in watt output.
in the spirit of talking out of my ass I’d image that the engineers intended for the product to over shoot the goal of 240watts by an acceptable tolerance. As a consumer I’d rather have a light operation brighter than marketed as opposed to weaker than advertised.
Splinter7
Well-Known Member
yes. i don't know what their problem is though. they seemed to have a good rep. the product specs looked good too. i would tak the 270w no prob, but i don't want something shitty to happen because it's not designed to their spec.
PadawanWarrior
Well-Known Member
OK. You sounded new to me,
Billytheluther
Well-Known Member
i live in a similar climate si i know what you mean, i use a 315 cfm in a 4x4 running medium to help eliminate smell more.
That hot air ouside makes the scrubbed air reak again, maybe not to someone who has no clue what we do but any grower would.
Anyways if your running leds you can get away with a little more heat, when i had a 600hps in there ambient temps were 72 and it would hit 90+ in the tent running cool hoods that were well sealed.
id just keep everything as is if you worry is only the light drawing more power than stated, hell maybe you could run it a time or twi and ask for a new one.
How long have you ran it for?