"Neon John" wrote in message

Solar water heat from the roof works well but generally, the tubing itself
needs to
be exposed to the solar radiation. Radiative energy transfer is much more
effective
than convective in this situation.


I live in a snow area and my roof is at a 45 degree angle. Also 2 story
house. So basically need a high lift to get up there. Quite easy to access
the attic though.