Yep! We installed a 5 blade, 52", flushmount Harbor Breeze ceiling fan...think we bought it at Lowes. The only issue is that with the length of the large blades, because of the configuration of our 3600RL, I have to make sure the fan blades "straddle" the decorative centerpiece on the top entertainment slide, BEFORE bringing the slides in.
Other than that it works GREAT!! Puts out alot of air, you can actually feel it...and when reversed really helps to draw air thru the coach. The other neat thing we did was to replace the toggle style switch for the fan in the closet near the door with a variable speed fan switch...fits right in it's place, and now we do NOT have to pull the chain to change speed. We set the speed when we turn it on...also works great cause we're both short..LOL!!
P.S. One other thing we did...the blades on the fan were oak colored, but really didn't match that well...contacted Heartland and purchased some of the contact paper they use on the sides of the cabinets. Was able to recover the fan blades with it, and now they match perfectly!!