John Beardmore wrote:
In message .com,
writes
A decently designed solar space heating system would not be using water
in the first place. Picking hydronic for space heating is pretty much a
design death blow.
Secondly, an entirely different method would be used to maintain temp
after dark.
I suspect the notion was that the water would be a heat store.
Thats a dead duck way to design solar space heating, so no.
There is a comfort zone, not just one fixed temp at which
people are cosy. Heat to as high in that zone as solar power provides,
and you have n hours after sundown of sufficient warmth. N depends on
design details.
If you go down the high thermal capacity route.
Brick/block houses typically have enough, and we've got lots of those
here.
NT