I read that:
But I don't see another one at the moment.
And I don't know what the author checked by touch.
I have generally written about "external pump control".
piracik wrote:Star-Z NOVA is a 4W circulation pump
It is in no way suitable for a heating system. She circulates barely stirring.
But I don't see another one at the moment.
And I don't know what the author checked by touch.

I have generally written about "external pump control".