Star Wars was the name given to which Reagan effort? A. Nuclear Arms Disarmament B. Nuclear Arms Race C. Strategic Defense Initiative D. Strategic Offense Initiative.
1 Central A/C installation in a home with existing ductwork costs $2,500 to $7,000, including the system itself and all associated labor costs. 2  Central A/C installation in a home that requires ductwork can easily cost twice as much, or $5,000-$14,000.
I would stay with your central AC system since you already have the infrastructure installed for it. Even if a ducted system has not been used in years, a good cleaning would cost very little ($400-$800). For standard house, the duct are galvanize steel/aluminum and does not have liners. Unless you see a lot of rust or the ducts are falling apart, it is perfectly usable.