How much air movement needed.

go go kid

go go kid

Well-Known Member
So ive just purchased a new 1m x 1m x 2m tent. a 600watt dule mh/hps digi ballast with 250/400/600 and turbo 620w settings on it.
its not a concern as to getting one so soon because i can do most of the grow with an outside 15 inch fan. but as they grow and get to final flowering position, ill be wanting an inside fan blowing air around
what does anyone else with a 600w light use for a fan?
size?
power?
brand?
any help would be apreciated. this is the first tim ill be useing a tent without gaping holes in it, so air flow is a must
 
NukaKola

NukaKola

Well-Known Member
So from your post it seems that you already have the intake/exhaust covered? Are you air cooling the light?

If you just need an oscillating fan for air movement I would go with a tower style oscillating fan since you are in a tent. They take up much less space than a wall mount. The cheap little clip ons suck, they barely move any air.
 
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BeastLebanese

Well-Known Member
Inline fan + oscillating tower fan should be good on airflow. A small fan in the bottom corner on the floor opposite the other fan, pointed up, helps make sure the air is circulating fully. Especially when the plants get bushy in veg, the fan has trouble reaching the other side of the tent. If you have a cool tube/air cooled hood would be even better for more temperature control. If you don't have the air cooled hood/tube, I would recommend setting up the exhaust duct to pull the hot air from between the bulb and canopy if possible.
 
go go kid

go go kid

Well-Known Member
there are no temps at the moment, im setup in an old caravan/mobile home, with broken windows. theres a large living/kitchen area all made into one space to put the tent up . temps are never usualy a problem, but that was with a 400w in a very badly made tent that kept coming unstiched, so plenty of light leek. heat leek , so fingers crossed the 120 £ i spent on the tent will pay off.
im not doing, well havent planned on doing an intake /output system in just yet, i want to see how it gos without first.
ive got a while till the light is all the way up to 660w just yet, so plenty of time to work it all out hopefully
 
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Purpleturple

Active Member
go go kid said:
So ive just purchased a new 1m x 1m x 2m tent. a 600watt dule mh/hps digi ballast with 250/400/600 and turbo 620w settings on it.
its not a concern as to getting one so soon because i can do most of the grow with an outside 15 inch fan. but as they grow and get to final flowering position, ill be wanting an inside fan blowing air around
what does anyone else with a 600w light use for a fan?
size?
power?
brand?
any help would be apreciated. this is the first tim ill be useing a tent without gaping holes in it, so air flow is a must
Click to expand...
I have a similar setup: 600w in a 4ftX4ftX7ft(tall). I have 10+ Grows in there and found the right combo to be: vented sheild with 4 inch booster fan(cheap one 100cfm) keeps the light cool enough. 4 inch blower (200cfm) will work for air exhaust/neg pressure. And an oscillating fan blowing on the canopy inside.
There is still a chance for light burn with the ballast on 600w if the plants stretch too high-LST those skanks!
 
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EasyGrowerUk

Active Member
hi go go kid,
Currently using 2 x 600w hps digi ballast.
my flower room is 2m (L) x 0.75m (w)x 1.8m(h)
6" rvk fan
my temps are between 14-18c lights off and 24 - 30c lights on ( canopy temp)
shed grow ( designed in a way the intake air can't mix with exhaust hot air)
outside temps runs between 2-10c
 
Wattzzup

Wattzzup

Well-Known Member
I have my intake/filter hanging at the very top.
600w MH/HPS then my fan (hanging) blows horizontal air across between light and canopy.

I started in a tent your size with that light. My basement is cool. If your room stays cool you will be fine. Summer might be another issue.

I buy these8EF69C19-4146-4094-9DD3-B55462087EC9.png
 
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kovidkough

kovidkough

Well-Known Member
I would just section off a larger space inside the mobile home thats larger then the tent and make it light proof so you can open tent without worry, that is if security is an issue

nvm i reread your second post
 
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EasyGrowerUk

Active Member
Thats great advice kovidkough

Inside my shed is 8ft x 2m and I have built the flower room, so as I open the shed door (inwards) it cover the flower room door, need to be able to open the door without any light or smell getting out of the shed.
 
go go kid

go go kid

Well-Known Member
smell int a problem, its shiftingtheheat. im lookingat extraction fans in thetop b4 addinga cool hood andducting. is this possible tokeeptheheat down
 
go go kid

go go kid

Well-Known Member
kovidkough said:
I would just section off a larger space inside the mobile home thats larger then the tent and make it light proof so you can open tent without worry, that is if security is an issue

nvm i reread your second post
Click to expand...
security not a problem. i have an old tenti can take appart and cover bits for light proofing if i choose
 
kovidkough

kovidkough

Well-Known Member
definitely allow some breathing room for summer however in winter you really want to bundle up, I just section an area in my basement, however its unfinished and leaks heat. right now I can keep the temps in check with 2x600w but when I had the single it got pretty chilly. you can convert that whole thing into your workspace , i wish I had a trailer!
 
go go kid

go go kid

Well-Known Member
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EasyGrowerUk

Active Member
I have use chicken mesh and wrapped it around a fan just like this and had the bulb hanging 6" above the fan, worked really well but at times my fan was off while the bulb was on and it slightly melted the fan casing, so just be really careful.
 
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