• Here is a link to the full explanation: https://rollitup.org/t/welcome-back-did-you-try-turning-it-off-and-on-again.1104810/

Fan Selection

Holy Grail 888

Holy Grail 888

Well-Known Member
im gonna build a box for it and soundproof it too. with the silent fan speed controller it should keep my grow odor free and noise free im hoping !
bongsmilie
 
LilT211

LilT211

Well-Known Member
Holy Grail 888 said:
im gonna build a box for it and soundproof it too. with the silent fan speed controller it should keep my grow odor free and noise free im hoping !
bongsmilie
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Definitely interested in the outcome. Odour filtration and temp control scare me the most. The fan will sit inside the box correct? Think I seen one hanging from bungees in a sticky somewhere. How much does the speed controller affect temperature on the light and space overall?
 
Holy Grail 888

Holy Grail 888

Well-Known Member
LilT211 said:
Definitely interested in the outcome. Odour filtration and temp control scare me the most. The fan will sit inside the box correct? Think I seen one hanging from bungees in a sticky somewhere. How much does the speed controller affect temperature on the light and space overall?
Click to expand...
Hi ,
Odor , scares me too but no longer temps as im working with just a 2ft 4 tube t5 ! In Spain I was running a 600w in the summer and that was a constant battle.. the skunk won amongst other female friends :bigjoint:
How much will the speed controller affect the temp isnt an issue for me however im intersted in the difference .
Ive not used a speed controller before so i dont know the answers.
 
LilT211

LilT211

Well-Known Member
Holy Grail 888 said:
Hi ,
Odor , scares me too but no longer temps as im working with just a 2ft 4 tube t5 ! In Spain I was running a 600w in the summer and that was a constant battle.. the skunk won amongst other female friends :bigjoint:
How much will the speed controller affect the temp isnt an issue for me however im intersted in the difference .
Ive not used a speed controller before so i dont know the answers.
Click to expand...
The only reason I'm even getting a speed controller is for the noise. It's my understanding that with a 400cfm fan hooked up to light and filter may still need to be slowed down due to noise. Is this right?
 
U

urban1026835

Well-Known Member
LilT211 said:
Definitely interested in the outcome. Odour filtration and temp control scare me the most. The fan will sit inside the box correct? Think I seen one hanging from bungees in a sticky somewhere. How much does the speed controller affect temperature on the light and space overall?
Click to expand...
dont but the cheap speed controller


If you plan on using it for an inline fan they suck and I hear they ruin the motor...I now use mine on a circulation fan I removed from the hood of an oven and wired up.
 
skunkd0c

skunkd0c

Well-Known Member
LilT211 said:
The only reason I'm even getting a speed controller is for the noise. It's my understanding that with a 400cfm fan hooked up to light and filter may still need to be slowed down due to noise. Is this right?
Click to expand...
putting the fan in a box and using acoustic ducting works well i prefer that
myself than slowing them down with a variac
 
booms111

booms111

Well-Known Member
urban1026835 said:
dont but the cheap speed controller


If you plan on using it for an inline fan they suck and I hear they ruin the motor...I now use mine on a circulation fan I removed from the hood of an oven and wired up.
Click to expand...
same fan controller as HF but says idealair on it for more money! Ive used 4 HB controllers for along time. 1 has been on the same 6 inch vortex for 10 years now...
 
E

Edgar9

Well-Known Member
LilT211 said:
T


The tent is not the problem at all. The tent is 48x48x78 so I had less than 6 inches between my ceiling and my tent. Never thought to put fan inside of tents. Rookie here. Going to have to make a hole to vent exhaust from. Will a 400cfm fan be strong enough, or recommended, for this setup - exhaust fan ---600w light---- carbon filter? With a 400cfm fan how cool does everyone's 600 watters run? How close can I put my lights with this setup?
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A 400 cfm fan will be cutting it close to cool a 600 watt because of the cfm's you'll lose pulling through the filter and having the air go through the ducting and hood. After the cfm's taken away from the filter/hood and ducting the 400 cfm's turns into 200 cfm's. That's the bare minimum to cool a 600 watt. Once it gets hot in the summer you'll potentially have heat problems.
 
booms111

booms111

Well-Known Member
no harbor freight. everybody i know that grows has at least 1 of these from harbor freight with no issues.
 
LilT211

LilT211

Well-Known Member
Edgar9 said:
A 400 cfm fan will be cutting it close to cool a 600 watt because of the cfm's you'll lose pulling through the filter and having the air go through the ducting and hood. After the cfm's taken away from the filter/hood and ducting the 400 cfm's turns into 200 cfm's. That's the bare minimum to cool a 600 watt. Once it gets hot in the summer you'll potentially have heat problems.
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Yea you're right. In my part of the country summers can be brutal. 100 degrees easy. Looking for a 6" that's around 440cfm. If not I guess it's going to be the huge 8" fan with around 720cfm. Better safe than sorry I guess. With the extra cfm will I be able to be less than a foot from the tops?
 
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