I purchased a home which is 78 years old. It has old style steam radiators. My hot water runs off the same furnace that makes the steam for the heat. According to the oil company, whom I have a service contract with, the furnace is vintage 1970s'. Its been cleaned, and certified at 77% efficient.
My questions are... How long might this furnace last? And if it were to go, can I still buy a proper steam furnace to replace it?
Should I look at splitting off my hot water source?
And last, should I save my money and have the whole system replaced? I have a friend to says heating contractors can now run copper baseboard hot water pipes within my old steam pipes.