Recent content by usguvna

Thanks. Where do you buy these valves?

I have Grundfos WB12, the hot water is fine, however, when the thermostat calls for CH I don't get hot water to the radiators. There a white box by the water heate with metal lever (not technical) which has "man"and "auto" on the front. When I push the lever up to "man" it seems to release...