Can you use too much fan?

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somebuddy

Active Member
I have decided upon an easy cool with a 600 watt hps for my flowers, The room is 4x4x8, i was thinking about a grow bright, or a can fan, but both of them would be exchanging the ait in the room at least twice a minute. Is this a bad thing?
 
GoldenGanja13

GoldenGanja13

Well-Known Member
somebuddy said:
I have decided upon an easy cool with a 600 watt hps for my flowers, The room is 4x4x8, i was thinking about a grow bright, or a can fan, but both of them would be exchanging the ait in the room at least twice a minute. Is this a bad thing?
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Thats pretty fast. My flower room is 4x4x9 (soon to have plants in there) And I am going with a can fan 4" that exchanges air in about 2 mins.
If you don't have co2 I don't think you need to worry.
 
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somebuddy

Active Member
GoldenGanja13 said:
Thats pretty fast. My flower room is 4x4x9 (soon to have plants in there) And I am going with a can fan 4" that exchanges air in about 2 mins.
If you don't have co2 I don't think you need to worry.
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I will be using co2 eventually, so yeah i thought it was too much air being pulled from the room, i guess a 4 would work, and i could just use a reducer off the reflector
 
GoldenGanja13

GoldenGanja13

Well-Known Member
For a 4x4x8 4 inch would be fine. The guy at the hydro shop told me a 6" fan would be like 90 seconds.
And if using co2 just put air on timer.
 
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jollytime

Well-Known Member
If you are having a problem with heat the 6" fan is best . I just put in a 4" in boster fan, But it depends on how long the run is and is it smooth or corragated. These factors have a lot of play on how much you are really moving. I orded a 6" fane to compensate for the short fall.
 
GoldenGanja13

GoldenGanja13

Well-Known Member
jollytime said:
If you are having a problem with heat the 6" fan is best . I just put in a 4" in boster fan, But it depends on how long the run is and is it smooth or corragated. These factors have a lot of play on how much you are really moving. I orded a 6" fane to compensate for the short fall.
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Yeah I didn't think about the turns and such. I better think alittle more before I go out and get a 4 inch.
 
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somebuddy

Active Member
Ok, so there is a lil bit more figuring, Im gonna be pushing through a carbon filter after about 8 ft of insulated (for the noise) ducting. Im really worried abut the heat, ill be using a digital ballast though too to eleminate that heat scource.
 
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Skeksis

Well-Known Member
somebuddy said:
Ok, so there is a lil bit more figuring, Im gonna be pushing through a carbon filter after about 8 ft of insulated (for the noise) ducting. Im really worried abut the heat, ill be using a digital ballast though too to eleminate that heat scource.
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Digital ballasts don't really reduce the heat. 600 watts of energy is 600 watts. And a certain amount
of heat output per watts no matter if it's magnetic or digital. I've compared and there's no difference.
The only difference is they are quieter and seem to get to full brightness faster.
 
303

303

Well-Known Member
GoldenGanja13 said:
Yeah I didn't think about the turns and such. I better think alittle more before I go out and get a 4 inch.
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I run mine 24/0. I also have a 4" fan, but it connects directly to the carbon filter, if there were any ducting, especailly with bends it wouldn't be efficent at all. (For theres still a little odor present) Go with the 6"er, wish I would of!!! And insulated ducting is the way to go, I would hook some up I just don't feel like taking that thing down and re-doing it. Only got a few more weeks anyway
 
GoldenGanja13

GoldenGanja13

Well-Known Member
Yeah I told my wife a few hours ago that I need ot go ahead and get the 6 inch. I told her that I was not taking the bends into consideration. And I would be pissed if I shorted myself.
 
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somebuddy

Active Member
Im probably going to go with the 6in as well, and probably a much smaller 4 inch fan to bring air in from under the house.
 
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