Motoxxxguy53
Active Member
OK so i have a 4x4x2 grow room 2ftW,4Ft tall,and 4ft long I have a 400 watt hps light with out reflector yet made a home made one and its at the inside top of the room the room is fully mylar covered for full reflection, and i plan on getting the cool tube but im on a budget, i bought and installed a 8" inline fan rated at 471 cfms exhausting out with 8" ductin right up to the light bulb. The exhaust is 8" flowing straight out of the grow room and down and is flowing opposite of any venting. THe room is averageing 90 degrees it has gotten to 99 at its highest and 86 at its lowest im using two diff temp gauges that both read different so i find the average between the two, Anyways. HOW CAN I POSSIBLY COOL THE ROOM DOWN MORE WITH OUT AC. My house dosent have ac either. so the only air being sucked in is the tempertaure of my room. do i need to install a fan blowing in towards the opposite and bottom of where the exhaust fan is? and is an 8" fan with 471 cfm overkill? from what ive been reading i might only need a smaller fan. Any help or opinion would help out a lot thanks MAT