I'm trying to upgrade my ceiling electrical boxes for ceiling fans. The house is from 1935 and lord knows when the electrical work is from, but it's old.
Got up in the attic to get the old box out and this is what I found:
So it's a quarter inch thick metal (iron?) bar running between the joists and attaching via a clamped metal threaded rod that comes through the center of the existing junction box.
From what I've read, my best guess is that the metal rod is likely nailed into the joists from below? So do I need to cut under the joists? Is that safe to do? Can I do it with hand tools or do I need to go out and buy a sawzall or something?
As for the box itself, once I get the bar out, do I just start chipping the plaster until it comes loose?
Thanks from a plaster newbie.