hi im removing my old storage heaters and want to know what i do with the electric wires when i have it off the wall. i have 2 of them one in the hall and one in the front room. the hall has one main switch for it that was fused. the one in the front room has 2 one with a fuse in it the other just a switch. what do i need to do to make thees safe as we are gettin new heaters and dont need these sockets.