Robin2:
I believe that's what I said in Reply #2 - have you checked my maths?And is your system using AC or DC?
...R
I have absolutely no clue about electronics hence the maths. I am afraid I will have to blindly follow your advice. I am 100 percent sure supply to Valves is DC and not AC.
Supply to Steam Generator is AC and I believe the circuit/converter inside would covert it to DC before supplying to Valves.