Mary Fisher wrote:
There was such a hard frost last night that the frost-stat on the ch boiler
came on for a short time. There was thick ice on all the open water in the
garden and all roofs were white.

But it's been sunny today (although cold) and I did three machine loads of
washing and we still have a cylinder full of water at just short of 60C.

Scoffers can scoff away but we're very happy -it's just a foretaste of
what's to come :-)

What sort of panels?
I'm contemplating doing something with the old radiators, bus windows,
and polystyrene sheet that I've got lying around.
Currently I'm wondering how hot you could get with silly (say 5 panes)
amounts of glazing, with a system to suck air through the panes.
So that light absorbed in the panes is not lost.

Also wondering what the possible ratio of a fan assisted panels
radiator/panel size is.