Hi my name is Chris and live in Bush, Louisiana just north of New Orleans. I am in the process of converting a bathroom vanity into a walk in shower and have a few questions. The ceiling height is 10' to start and I am installing 2 recessed lights in it for wet conditions. Do they have to be on a ground fault? If so how can I set them up on a GFIC being the lighting circuit is an existing one. One other question is the AC duct. Would it be ok to leave it inside the shower? I am cutting an transom window above the shower door to help with the release of steam into the bathroom itself where there is a heater vent.