Hi again,
I have now got and installed the Windsave GTI on the CHP and it seems to work well

. I am filling in the forms for the DNO and need the test certificate. Unfortunatly I don't have one and can not find it on the web.
Has anyone got one or know of the location of one that I can copy. I have the 'Declaration of conformity' but it does not refer to g83.
They must exist as so many were, allegedly, connected to the grid.
D ick