Coal Dog wrote:Hello coal burners,I have a efm 520 that I want to put in a out building about 130' from house.I was going to run underground and tie into existing electric boiler.$$$$$ through heat x and take two lines to feed a unit heater in out building that the stoker is in.I have no idea what controls are needed and what kind of piping schematic I need.Any info is greatly appreciated.
You will need to do a little research. The heat exchanger would act like a second boiler to the house system. You would need to run a control line out to the coal boiler location to call for heat to make the system more efficient. You could pump it hot all of the time but that will waste energy.