-
I never said it wasn't the right pump, I said it wasn't the right pump for water which is what you said . You need a bronze pump for water that pumps for central heating which it will be but it also depends on how its fitted. Its hard to see what kind of heating system and HW system you have in. Could be gravity HW and Pumped heating or it could be fully pumped and then its fine.
So it isn't really the right pump? Can you explain why?