C crazy420 Active Member Feb 3, 2008 #1 right now I have 5-42watt cfl's and 7-23watt cfl's, about to purchase a 400watt HPS which produces more heat. My grow area is 2 1/2'x4'x7' will 1 250cfm fan be enough for my exaust for the hps with a air cooled hood??
right now I have 5-42watt cfl's and 7-23watt cfl's, about to purchase a 400watt HPS which produces more heat. My grow area is 2 1/2'x4'x7' will 1 250cfm fan be enough for my exaust for the hps with a air cooled hood??
GNOME GROWN Well-Known Member Feb 4, 2008 #4 buy the 250...more is always better!...incase u want to make a bigger grow room later on!