We installed two of the Minka 54" fans in our vaulted ceiling in the dining room.  We had not realized how much of our heated air was rising to the ceiling and staying there until we turned the fans on low and let them move the air --- the room now stays at a constant much warmer and even temperature!  We have been able to turn the heating system down.  The fans are quiet and move a lot of air in this 1000+ square foot room.  The fans were a great price and we leave them running a lot of the time.  I can hardly wait to see what they do during the summer when the air conditioner is running.