What size duct you need for a 6 inch fan + cool master tube? Need quick answer.

B

bukujutsu

Member
This is the fan I have: http://www.amazon.com/gp/product/B003YFADW8/ref=oh_details_o05_s02_i00

Surprisingly I could find no discussion of how to set up the duct, probably because it should be such a simple thing to do.

Does it have to be a 6 inch duct, or larger than the diameter of the fan? The bulbs are 400w MH and HPS, and I want to use insulated duct because it reduces the noise. The length the air will move will only be about 5-7 feet at most. Going to run off to the store soon.
 
Mcwhippin420

Mcwhippin420

Well-Known Member
ooooo i need order thaat its super cheap and double cfm my exhaust lol mine is 109cfm.....that wouuld make a huge difference i bet :) !!! n you can use whatever size ducting i would go with 6" ducting tho
 
Mcwhippin420

Mcwhippin420

Well-Known Member
oh well yeah im spend money on a more expensiv one then haha i need quiet the 4" one i got know you can bearly hear it :) but i need something a little bigger for my 400 i think esp with summer coming
 
Dannoo93

Dannoo93

Well-Known Member
Make a cooling tube using hurricane glass and hook it up to ur fan it will cool ur light and still suck air out
 
hotrodharley

hotrodharley

Well-Known Member
bukujutsu said:
This is the fan I have: http://www.amazon.com/gp/product/B003YFADW8/ref=oh_details_o05_s02_i00

Surprisingly I could find no discussion of how to set up the duct, probably because it should be such a simple thing to do.

Does it have to be a 6 inch duct, or larger than the diameter of the fan? The bulbs are 400w MH and HPS, and I want to use insulated duct because it reduces the noise. The length the air will move will only be about 5-7 feet at most. Going to run off to the store soon.
Click to expand...
http://botanical.com/hydro/air/calculating_fan_requirements.html
 
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