The Combi-core water heater that heats my addition with radiant heat
(15,000BTU heat loss) needs replacement. This will be my third and I
want to do something that will last. The heat load is rather small, so a
dedicated boiler seems a bit expensive and unnecessary. My WM-SGO-3
steam boiler has an Everhot heat exhanger tank to heat a small hydonic
loop (10,000BTU heat loss.
I was thinking that it might be more cost effective to have another
Everhot, or use the same one, to heat the radiant loop. Any thoughts?
compare to the EDR of the steam emitters? Being a SGO3 it may not have the power to maintain steam and heat the zone. Heat loss calculations and radiator surveys need done. If you have the btu's then you can come off the same everhot and use a 3 way mixing valve for the radiant zone.