Most of us have forced air heat and air conditioning through ducts. If one whet with a boiler, can the existing duct work be used and forced air? When I think of a boiler, it brings images of big buildings that have radiant heat, like schools. Seems to me, if one wanted to heat from a central location that the wood furnace would be the best option - unless you can use the existing duct work. Most of all homes around me do not have radiant heat.