I'm in the process of moving my growroom. We have a good location for the new one, the only problem is the proximity of a couple of open windows (on warm days) about 30 feet from the growroom. My question is concerning exhaust air noise. I'm going to be using a 1500 cfm fan to exhaust warm air through a window opening. The actual window frame itself is going to be boarded up and I'm making a wood box to surround the open window portion. The wood box will have a 12 inch hole cut in it to mount exhaust ducting. Does anybody have experience of using large centrifugal fans in a similar setup ? Minimizing noise is really important. I'm aware of all the things to reduce noise such as sono-ducting, air silencers, etc. however I would hate to have a knock on my door from a neighbor asking why I'm running a jet engine in my room ! BTW I haven't actually heard a 1500 cfm fan running so I hope somebody here can tell me I'm being paranoid
houdini Reviewed by houdini on . air noise question I'm in the process of moving my growroom. We have a good location for the new one, the only problem is the proximity of a couple of open windows (on warm days) about 30 feet from the growroom. My question is concerning exhaust air noise. I'm going to be using a 1500 cfm fan to exhaust warm air through a window opening. The actual window frame itself is going to be boarded up and I'm making a wood box to surround the open window portion. The wood box will have a 12 inch hole cut in it to mount Rating: 5