hey guys, i have a 8x8 tent, and now im callculating air exchange
so the basic setup would be smth like this in the picture (its not mine)
filter - 6inch cool tube - 6 inch fan
as i found this formula :
Step 1: Room Volume
First the volume of the room needs to be calculated. To calculate multiply length x width x height of growing area e.g. A room that is 8' x 8' x 8' will have a volume of 512 cubic feet.
Step 2: CFM Required
Your extraction fan should be able to adequately exchange the air in an indoor garden once every three minutes. Therefore, 512 cubic feet / 3 minutes = 171 CFM. This will be the absolute minimum CFM for exchanging the air in an indoor garden.
Step 3: Additional factors
Unfortunately, the minimum CFM needed to ventilate a indoor garden is never quite that simple. Once the grower has calculated the minimum CFM required for their indoor garden the following additional factors need to be considered:
Number of HID lights — add 5% per air cooled light or 10-15% per non-air cooled light.
CO2: add 5% for rooms with CO2 enrichment
Filters: if a carbon filter is to be used with the exhaust system then add 20%
so, as my room is 8x8x6.5 its 416 cubic feet i believe, devided by 3 = 139 CFM i believe
ill have 2 lights , i dont know are they considered cooled or not, but lets count it as yes 139x0.10= 13cfm
and a filter , so its 139x0.20=27CFM
temp and humidity is ok
to sum up, its 139+13+27= 179CFM
and as i got this right, my fave Soler & Palau 500m3/h vent is (1m3/h = 0.588CFM) 500x0.588=294CFM ...
what do u think about my calculations guys? yes i am super noob
so the basic setup would be smth like this in the picture (its not mine)
filter - 6inch cool tube - 6 inch fan
as i found this formula :
Step 1: Room Volume
First the volume of the room needs to be calculated. To calculate multiply length x width x height of growing area e.g. A room that is 8' x 8' x 8' will have a volume of 512 cubic feet.
Step 2: CFM Required
Your extraction fan should be able to adequately exchange the air in an indoor garden once every three minutes. Therefore, 512 cubic feet / 3 minutes = 171 CFM. This will be the absolute minimum CFM for exchanging the air in an indoor garden.
Step 3: Additional factors
Unfortunately, the minimum CFM needed to ventilate a indoor garden is never quite that simple. Once the grower has calculated the minimum CFM required for their indoor garden the following additional factors need to be considered:
Number of HID lights — add 5% per air cooled light or 10-15% per non-air cooled light.
CO2: add 5% for rooms with CO2 enrichment
Filters: if a carbon filter is to be used with the exhaust system then add 20%
so, as my room is 8x8x6.5 its 416 cubic feet i believe, devided by 3 = 139 CFM i believe
ill have 2 lights , i dont know are they considered cooled or not, but lets count it as yes 139x0.10= 13cfm
and a filter , so its 139x0.20=27CFM
temp and humidity is ok
to sum up, its 139+13+27= 179CFM
and as i got this right, my fave Soler & Palau 500m3/h vent is (1m3/h = 0.588CFM) 500x0.588=294CFM ...
what do u think about my calculations guys? yes i am super noob