After the renovation of living room and bedroom I had each imagined as new lighting a ceiling fan. For the living room I had chosen the "Celestia", for the bedroom to "Alloy" from Westinghouse. First I instaled the Alloy. Installation was fairly easy, but the operation was not at all. The fan has boomed unbearable even at the lowest level, which was unbearable. Experiments with "Bell seal", etc. to get a better sound insulation beat allesammt fail, I had to break down the Alloy resist and return. Then I have the "Celestia" mounted in the living room with very mixed feelings on the existing wooden ceiling. These mounting (anchoring with long screws through the wooden ceiling in the concrete) including assembly of the fan was pretty easy. I was pleasantly surprised in the commissioning phase of the barely perceptible operating noise of the fan in step 1. In step 2 then were wind noise and to hear significant wind noise in stage 3, where the fan has thereby also blown properly. I was so pleased that I ordered this as a replacement fan for the bedroom the same again, this works just as quiet as the living room. Conclusion: Buy recommendation