Agree with others, and as you are in soft water area, I reckon 10 years easily.
Though I would also say a modern boiler in your area should last a heck of a lot longer than one would down here in Cotswolds, with high calcium and very high grit content that just kills them.
I have seen...
I have two valves Honeywell F6 9813 in the system, both fitted about 17 years ago.
One is not working and so measured resistance across blue and brown to discover one is 2.4KOhm, the other is open circuit.
The open circuit one is not working - so assume motor is broke
QUESTION - Even...
Just checked out the WB web site and compared the 24i Junior, 27CDi and it says that the 24i Junior does not condense with DHW.
Now I may be a simple man, but surely the whol point of Condensing is that it works best when the inbound temp is a fair way below outbound temp.
So it strikes...
So from what your saying if it's WB then it should be a 27CDi, to get the better build.
The only thing DHW used for is a shower. I have current combi (ancient half working Halstead Quattro) which has it's clock overridden by Honeywell control for heating rads and a circuit for Hot Water tank...
Just about to go for a new combi (WB Greenstart 28i), and a Magnaclean filter suggested.
Seems like a good idea until I see others saying the Sentinel is better.
I have my own thoughts on the longer term problems with the Magna Clean so wanted to find out what the reasons would be for the...