Our house is total electric with base board heat. We had central air installed in early 90s with flexible duct work in ceiling. Central air unit quit this year (dog pee probley had something to do with it). Decide to replace with a heat pump for cost effectiveness. Estimate for a 2.5 ton heat pump and 2.5 ton electric furnace with new metal ductwork in attic is 18,500. Is that reasonable? Work supposed to begin in week. P.S. Wife don't like the base board heat because most of it is blocked by furniture.