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20 lb. co2 tank longevity?


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#1
SOB420

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Does anyone know how long a 20 lb. co2 tank will last in a 300 cu. ft. room only venting when temp and humidity require (they are typically pretty well in check)? co2 is only on during lights on kept at 1500 ppm

#2
WhobeBoo

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#3
grass69

grass69

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My co2 tank lasts about 5 days in a 4x4x7 room with a 6" vortex running non stop. I have my timer set for 30seconds on every minute for 12 hours. The ppm ranges from 1100-1400.

#4
ten footers

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the calculator said that in my 7x7.5x5.5 room that a 20lb tank would only last .23 hours :-/

any help with this, i am looking into buying a co2 tank and i need help on the size and cost side of this, i have tried searching hella (thats why i am bringing back this old ass thread) so if anyone could help me thatd be amazing (def get a nice lil rep bump)

#5
joe_fresh

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yeah man that calculator dont work , i tried 3 diff room sizes and it gave the same result for all of them :(

#6
Sativa Dragon

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yeah man that calculator dont work , i tried 3 diff room sizes and it gave the same result for all of them :(


The results of the equation are at the top highlighted in Red. I missed it at first as well.


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