And when you get around to installing the fan(s) be sure to set them so they blow at the floor of the cabinet and not the leaves. The leaves can handle the heat but roots can not plus you get the added value of less aroma created by keeping the plants from moving as little as possible. Leaf movement is what creates a good share of the smell that escapes from a grow and if the fans are aimed at the pots there is far less smell to worry about.
madeline Reviewed by madeline on . 250w hps in a cab, how much fan noise? ok, so cab will be about 3'wide, 6'tall, 2'deep basically, i'd much rather use my hps for my flowerin cab than cfl's, BUT i need to make the cab quiet, SILENT would be best. so i'm thinking, a cooltube, exhausting out the back with a pc fan (92mm or 120mm), on a variable-voltage wallwart. plus another 120mm fan for regular exhaust at the top of the cap, with just passive intake holes all along the bottom back here's my question: i really don't know how much heat the hps will put Rating: 5