Gas/Electric System DCG Series 7.5-12.5 Tons The DCG Packaged Gas/Electric units provide energy-efficient cooling performance in one self-contained unit. This unit is suitable for ground-level or rooftop installations and horizontal or downflow applications. Up to 11.3 EER performance 80% AFUE Tubular heat exchanger Warranty: The heat exchanger in this Daikin brand packaged unit is covered by a 20-Year Warranty and all functional parts are covered by a 5-Year Parts Warranty. For a full description of the warranty, please download the product warranty document. ADDITIONAL INFORMATION: Before purchasing this appliance, read important information about its estimated annual energy consumption, yearly operating cost, or energy efficiency rating that is available from your retailer.Goodman