In message Esr7h.750$J5.99@trnddc04, SJC writes

You seem to be so sure of yourself, but you are so wrong.
Look up fluid source heat pumps with solar...get a clue.

OK, but solar is just one of the many things that you can plug onto the
front of a heat pump and heat store set, and not necessarily the most
appropriate in many circumstances.

Presumably if the collector is going to run cold there won't be any
advantage to putting it in a glazed insulated box, but if you run it
when the sun isn't shining it reduces to an air source heat pump, and
these tend to have crap coefficients of performance when its cold
outside compared to ground source and water source.

Or did you have some other arrangement in mind ?


Cheers, J/.
--
John Beardmore