I wish to install a ceiling fan in my outdoor porch. I plan to gain electricity from a receptacle on the second floor adjacent to the porch. The receptacle is end-of-the-run. I do not wish the wiring to be visible from the ceiling of the porch. What tips can I obtain as far as passing the wire from the receptacle to the ceiling box. I do not know if I will encounter any obstructions. Of course a raceway system would be easier but not as pleasing to the eye. Incidentally the original house was built in 1861 but has had many additions over the years. Any advice would be appreciated.