I pretty much have the same setup you have except no magnums, and I have a a/c unit in the room,during summer a/c is a must,but its so cold at night right now i can get away w/ it off most of the time...but I also have a small room(5ft wide 9ft long 6 1/2 ft high needs 275cfm w/o anything added to equation)...you have to calculate how much CFM your room needs...if your room only needs say 250-500 cfm then you should be good IMO...
steezyd Reviewed by steezyd on . 2 x 1000w HPS Ventilation Question In the process of setting up my new room and just had a quick question. Plan on running 2 air cooled 1000w HPS in a row with one fan. Both hoods will be Magnum XXXL with 8" flanges. Will a 8" Max Fan rated at 667 CFM be enough to cool both of the hoods? The ducting run will be minimal, under 10' total. Plan to use sheet metal ducting for everything. From what I've been reading it should be plenty, but just wanted to get a few more opinions from people running a similar setup before Rating: 5