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Should I have separate system and boiler pumps?
I recently had a Cadet boiler installed for my radiant heating. The piping diagrams in the installation manuals show a boiler circulator pump and a system circulator pump on separate loops. The installer put in only one loop and one pump. Is this workable? The reason I ask is that I am getting lots of short (2 minute) cycles when the system calls for heat. (b02 and n03 error codes)