ceiling demolition with radiant heat
My dad has electric radiant heat in the ceiling. His happens to be plaster over rock lathe. You would have to do a little tear out to see how your ceiling was built.
If you don't want to save the heating elements (which I am not sure is possible anyway), a hammer, a crowbar, dust mask, face shield and a lot of determination is needed.
Be sure to seal off the room from the rest of the house. Be sure the power is turned off to the heating units. Put some tape over your receps. Obviously a drop cloth is a good idea and if the floor is easily damaged, I would suggest putting something like plywood or at least masonite on the floor as well.