which inline fans do i need/should i get?!

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TragiK

Member
i have a 2x4x5 grow tent and plan to use a 400 watt hps light w/ diy cool tube:



im wondering how many cfm's im going to need between 2 inline fans to make this cool tube actually work right (inlines work for both inlining fresh air and one for exausting hot air right?? sorry im new to this!)..im looking for a failry cheap, but still decent quality quiet fan (if possible) that WILL GET THE JOB DONE!
 
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dripdrew

Active Member
just one. use it to pull air out it will pull the fresh air in on its own. if evdrythings air tight only one way airs comin in lol thru the other end just hang the light one end thru one hole the other in another. id actually try it without the fan jus run it like tht for a day without the fan and see what your temps are cuz its going to seal the heat regaurdless so it might just rise out of the ducting my buddy does it like tht in his basement but its cold down there see what temps would be without n then decide leave it on for 24 hours n check temps so u see wat peek temps would be. but if u do need a fan get a 176 cfm from cap its like 90$ works like a 200$ Canfan. just one sucking air out tho goodluck.
 
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TragiK

Member
dripdrew said:
just one. use it to pull air out it will pull the fresh air in on its own. if evdrythings air tight only one way airs comin in lol thru the other end just hang the light one end thru one hole the other in another. id actually try it without the fan jus run it like tht for a day without the fan and see what your temps are cuz its going to seal the heat regaurdless so it might just rise out of the ducting my buddy does it like tht in his basement but its cold down there see what temps would be without n then decide leave it on for 24 hours n check temps so u see wat peek temps would be. but if u do need a fan get a 176 cfm from cap its like 90$ works like a 200$ Canfan. just one sucking air out tho goodluck.
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thanks alot. im in central florida and might need one but ill def try w/o first and check the peak temps after 24 w/ it on (78-80 degrees peak w/ lights on is ideal correct?). cap is the brand name im assuming right? haha just need to get the heat problem worked out and im all ready to begin!
 
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dripdrew

Active Member
forsure heats always a big issue. i believe its valuline/cap brand. half price buolt exactly the same i bought a 235 cfm canfan for 200$ ghen got a 435 cfm for my 1000w two cooltubes for 120. way worth it. goodluck. ideal 75 - 84
 
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