If you have radiators, you have one of the best types of heat transfer devices available already. If you feel like you must add forced hot air heat to the A/C's ductwork, it may or may not be possible. Is the ductwork they installed for the AC in the basement or the attic? Would you heat the air with Gas, Oil, Coal, Wood, or Electric? Ductwork sized for AC is generally bigger than ductwork designed for just heat, which is fine for you. A problem sometimes comes in when folks add AC to an old, heat only ductwork system. Further describe the AC system they installed, and you can get more accurate help. What I'm thinking is this... if you have a furnace already for the radiators, and it is in otherwise good repair, you can add either a steam coil or hot water coil in the ductwork for heat. If you'd like to go with a new furnace, then I need more info on the AC system.
Last edited by mdshunk : February 5th, 2004 at 04:13 PM.