"JJJ" wrote in message
...
A plumber just told me that you're lucky if you get more than 10 years out
of a condensing boiler - because of their complexity and the fact that the
condensate rots them from the inside out...

is he right? not much point in being 90% efficient if the saving gets
swamped by the cost of a new boiler if he is..


For early ones he probably is but they've got a lot better. Laws of
customer satisfaction and all that. In any case you don't replace the whole
boiler, just some of the bits which are usually available as a kit.