Les wrote:

Solar heating of water and combi-boilers do not mix.The combi is
designed to operate on at least 1.2 bar mains water pressure, and water
heated by solar means would not be able to

Yes it would, if you collect the heat in a thermal store, you can have a
mains pressure feed to the combi heated by the (unpressurised) store.
Also we were talking about blending the the store heated mains flow with
the output of the combi - not necessarily its input.

What's the point? A combi boiler is specifically designed for
efficiency anyway.

Some are, some aren't. Not really the point though is it.


--
Cheers,

John.

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