Oh, I see. In that case, could you not get the plumber to run that pipe much lower down the joist, perhaps with a bit of insulation around it - so, although still below the cables where they crossed, there was an appreciable distance between pipe and cables?No, the plumber has put a pipe behind the joist running from the CH pipe into the radiator, and parallel to the joist. The cables then cross over the pipe.Are you saying that the plumber has put this new pipe in the 'cables' notch?
Kind Regards, John