4'x4' heat issue, type of exhaust

nop

Well-Known Member
I live in a very southern state and the summers get hottt. My grow is located in a non a/c building ( i know, not a good idea).

You can see my setup here: https://www.rollitup.org/grow-journals/202943-first-grow-100-fem-snow-white-t5ho.html


My cheap-o white thermometer is telling me the temp is ranging from 85-100 degrees. However I was a bit skeptical, and I have a digital thermometer with min/max readings and when I put it out there the temp diff was crazy, the digital reading was around 87 when the other one was upper 90's.

I left it out there last night and when I get home this afternoon will check the min/max settings to see whats going on.

My first thought is exhaust, since I have 0. I do have 2 120mm pc fans, one of them is rated at over 100cfm, the other was off a water cooled radiator so I imagine 80+ cfm. I was thinking of wiring these up and putting them on opposite sides of the back wall at the top of the veg area or on the sides at the top of the veg area. I can work with the clone area later.

My other thought was to get one of those stanley blowers and use it as an exhaust fan, I know they pull a ton of cfm.

Either way I am going to be putting a small fan in there to get air moving also.

What do you guys think?

Edit:
Another idea is.. since these things are rated so high. Maybe I can duct an exhaust port from my grow chamber and flower chamber and Y them into this thing and run the blower through a scrubber/carbon eventually.
 

LUDACRIS

New Member
I live in a very southern state and the summers get hottt. My grow is located in a non a/c building ( i know, not a good idea).

You can see my setup here: https://www.rollitup.org/grow-journals/202943-first-grow-100-fem-snow-white-t5ho.html


My cheap-o white thermometer is telling me the temp is ranging from 85-100 degrees. However I was a bit skeptical, and I have a digital thermometer with min/max readings and when I put it out there the temp diff was crazy, the digital reading was around 87 when the other one was upper 90's.

I left it out there last night and when I get home this afternoon will check the min/max settings to see whats going on.

My first thought is exhaust, since I have 0. I do have 2 120mm pc fans, one of them is rated at over 100cfm, the other was off a water cooled radiator so I imagine 80+ cfm. I was thinking of wiring these up and putting them on opposite sides of the back wall at the top of the veg area or on the sides at the top of the veg area. I can work with the clone area later.

My other thought was to get one of those stanley blowers and use it as an exhaust fan, I know they pull a ton of cfm.

Either way I am going to be putting a small fan in there to get air moving also.

What do you guys think?
for that size of space a 5" ruck fan will be perfect it extracts approx 275cfm per hr and if you want it quiet go for the 5" low power version (ruck fan) an invest in acoustic ducting.
i have a 5" ruck (low power) without acoustic ducting just normal ducting and its real quiet i can sleep with it on no problem.
LUDACRIS.
 

mrfloaty

Well-Known Member
easy guys i had simmalar problem with my box grow temp was hella high, i bought 2 bathroom extraction fans for £14 each say $25 and they both move 90sqfthr and i have not looked back everything is sweet now......
 
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