Im putting my projector in a "hush box". Im venting it to another part of the room.\nI'm putting my receiver and amp in a small closet. Im venting them to another part of the room.\n\nProjector is a Sony 295 ES.\n\nIs a round six inch duct enough? Is an AC infinity six inch fan enough? https:\/\/a.co\/d\/46MC8JR\n\nHow do trigger the fans to turn on when the equipment turns on?\n\nSide question, is there some kind of simple temperature alarm I can put in with the projector?