In an earlier contribution to this discussion,
Harvey Van Sickle wrote:


Yes, right: he was quite clear that it was system-dependent. He was
just making the point that increased efficiency depends on more than
simply hooking up a condensing boiler to all existing systems.

Having said that, a new boiler - condensing or not - is going to be a damn
sight more efficient than a 20-year-old model anyway!

Personally, I wouldn't want it *too* efficient. Stray heat from my boiler is
the *only* heat I curently have in my utility room!
--
Cheers,
Set Square
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