""Pet @ www.gymratz.co.uk ;¬)"" wrote in message
. uk...
Doctor Drivel wrote:

Try a vented heat bank (variant of a thermal store using a DHW plate heat
exchanger) heated directly by the boiler (no heating coil in the
cylinder). Heat the cylinder via the CH section of the boiler.

Doesn't this negate the benefits of the condensing aspect of the boiler
though?

Not at all. The body of water in the cylinder stratifies and leaves only
cool water at the bottom, which is returned to the boiler for more efficient
boiler operation. The body of water in the cylinder runs though the boiler,
not via a coil.