Infographic: 8 Steps Buying Guide For Central Air Conditioner For more detailed information, you can read our elaborate Central Air Conditioner Prices and Reviews. Share Your HVAC Quote/Cost Share Your HVAC Quote/Cost We rely on readers like you to share your HVAC system cost or quote. It really helps other visitors to estimate the cost of a new HVAC unit. Name Optional Email Optional Home Size * AC Brands and Model * ie: Tranx XR13, Lennox xp15 City and State Total Cost With Installation * Include Ductwork Replacement? * Yes No More Details About Your HVAC Project * If you are human, leave this field blank.