I had the rare occurrence of working on a St. Croix York Insert and a Bosca Classic 500 today. The control boards are exactly the same. Voltages, auger timing and interface. Interesting. Anyone know the manufacturer of the control board...I didn't look for stamps or stickers.
Also to note, the fire box and heat exchangers were very much identical.
Also to note, the fire box and heat exchangers were very much identical.