In message , Phil L
wrote

Condensing boilers use less gas than non condensing, meaning lower bills for
you

What is the actual saving? I get the impression that the hype on the
savings is comparing a modern boiler with something installed 30 years
ago and took two men and a crane to lift on to the wall.

Would an average household run a condensing boiler in the most efficient
way and is a low water content boiler of, say, 15 years age that much
less inefficient?

As a landlord is replacing the boiler the OP will not directly have the
installation charge but how long is the break even pay-back (extra cost
of boiler plus maintenance over lower gas costs)?

I wonder in the case of the OP the cost of repair is a £5 thermocouple
and not a boiler costing hundreds of times more?
--
Alan
news2006 {at} amac {dot} f2s {dot} com