duplex with one boiler / opinions

[Troy Forney]

You all have been such I help. I am slowly spending more time on BP. Thank you. Looking to buy a duplex with a shared boiler. Two story, one unit on each level with a full unfinished basement. The boiler is only 12 years old and is located in the basement. Right now the owner pays the heat, first floor unit. There are two electric meters and two gas meters. The upstairs unit has a gas line ran for there stove and then for their dryer in the basement. So the gas meter for the upper unit has dryer and stove on it. Owners meter has boiler, his stove and his dryer on it. I want to split the heat so I am not paying this. I am thinking boiler can be kept for one of the units and install a furnace for the other. Anyone have experience with this? I am thinking some reconfiguring of pipes for the boiler and some duct work and gas lines for furnace. I am I getting into something that is too expensive? 872 sq ft each floor.