re: attic solar heat recovery
19 jul 2005
news wrote:
>...a finned copper pipe in the apex, with insulation just above it, will
>preheat water fed to your cylinder or on-demand heater... i haven't done
>any figures yet...
with some figures, you may decide to leave out the insulation above it.
a transparent attic might be happier with an 8'x32' shallow epdm-lined
drain-down pond 6' above the floor, with a poly film cover.
nick
