We replaced two slightly larger diameter fans with these Hampton Bay fans, on our back porch. They don't put out quite as much air as the original fans we had, and they also rotate a little more slowly. We have two of them, controlled by one Wall Control. If I get ambitious I may try adding the second Wall Control, since we still have one left, to see if it makes a difference....but we didn't need two of them with the original fans. We always ran the original fans on setting "2", now we are running these fans on setting "1" to get approximately the same amount of air. The original fans had more "curve" in the blades, plus were slightly larger diameter, so they worked better than these. But these fans look much better, they go better with our black porch railing and outdoor light fixture, they are very quiet and they do get the job done, so we certainly don't regret our decision to replace the old, faded ceiling fans that these replaced!