Read the assembly instructions before placing an order. I didn't and that was a mistake. This unit is heavy and creates a lot of vibration -- the manufacturer is quite specific on how the fan should be mounted on different surfaces. For my indoor installation 4"x5" wall studs are required! Not sure of any house that is built with these! And grade 5 fasteners are required (google it). And you will need to drill holes into the fan's mounting bracket to accommodate the grade 5 fasteners. This is not a quick/easy installation. Can't comment on the fan because it isn't installed yet - need to upgrade my studs, buy grade 5 bolts and a drill bit for drilling out the bracket.