We have finally had it with our present combi boiler (Keston), now we have heating but only luke warm ‘hot’ water – looks like a blocked heat exchanger and a sizeable bill … can anyone recommend a replacement that won’t need the engineer to call every two weeks?

Frustrating isn’t the word for it …

Thanks
DhS

stop crying.. call Bg and get them to do a fixed price repair if your skint you can sign up to a service scheme for a year and the fing ll be free!!

Keston are a crap boiler, however a blocked heat exchanger is more to do with the condition of the overall system really. Old rads and no inhibitor? A magnaclean/spirovent type filter will help prevent this sort of thing in future

My combi (baxi) does this regularly. It is just the rubber diaphragm thats knackered again (usually)

This may help…