"Andy Champ" wrote in message
...
Mary Fisher wrote:
"Andy Champ" wrote in message
...

Mary,

The PV pump will only mean I don't waste electricity running the pump.
It won't help if the panel is doing no heating.

If the panel isn't heating the p[u,p won't be running, I don't understand
your point.

Mary


If I have hot water in my cylinder, and there's not much sun, I may lose
heat by pumping the hot water out onto the roof.

Why should you do that?

Mary