Mom has a 50+ year old home with a fuel oil fired boiler to heat her house ( baseboard) and provide hot water. She wants to get rid of the boiler. Will not consider Gas.(anyway the nearest gas line is a quarter mile away) For hot water we will just put in a electric water heater. The problem is heating the house. She had Central Air put in 20 ? years ago. Is it possible to add Heat to that? If so, what would be involved?