Ceiling Fan Sizes For Room - You know what? The title of the article is merely out and out misleading. The only actual "minus" as it pertains to a ceiling fan is what it will take to get one properly installed. Ceiling fans can be difficult to install for the inexperienced do-it-yourselfer. In some instances, where the ceiling fan will be to be installed, you will need to run an electrical line to the location. Unless you're adept at achieving this sort of thing, hiring a competent, bonded and licensed electrician will more than likely save you a lot of grief in the long run.
There is also the minor "disadvantage" that involves the issue of regular maintenance. Properly installed, a ceiling fan will give you years and years of pleasant cooling and cost-savings on your heating bill (assuming you have a fan which allows you to reverse the blade direction).
On occasion, ceiling fans need minor adjustments and get out of balance. Be sure that every one of the screws are tight, without going into great detail. When they're not tightening the ones that have come loose and run the fan. Your problem has been solved, if the wobbling has ceased.
If not, use a yardstick or another straight part of wood and put it (together with the fan stopped) vertically at the outer edge of one of the blades. Rotate the blades by hand to make sure that every blade touches the stick.