"Christian McArdle" wrote in message
t...

This will combine the energy of the
thermal store and the power of the
boiler, in effect making the cylinder larger.

No need. The cylinder is well overspecced,
getting on for two baths with no recovery.

Then you can lower the temp of the heat bank by ensuring the boiler licks in
when any shower or bath draws off hot water. The boiler can be a lower temp
and store a lower temp, all promoting condensing efficiency.


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