I recommend that you consider putting in separate electrical circuit just to power your iron (which requires a lot of power).
My hubby added a circuit for my iron and put a light switch for it next to the door. When I leave the room, I flip the light switches off and I know that my iron has not been left on by mistake. Actually he put a total of three power circuits serving my sewing room. One is just for the track lighting so I can add as many as I want, the one for the iron, and one for everything else.