Originally Posted by
big john
Is that the most efficient way? How does the system actually heat the house, do hot pipes exist in the walls? Does it also provide hot water for showers, etc?
It is a closed system which runs hot water through radiators (1939 parts of house) and baseboard convectors (1970s addition) Hot feed and return pipes in the walls and floors also provide some radiant heat. Domestic HW is a separate as heater.
I believe hot water with convectors is the most efficient system in this climate.