13 SEER & 80% AFUE Performance R-410A Refrigerant 2 – 5 Tons Single Phase ★★★★★ ★★★★★ 4.7 out of 5 stars. Read reviews. 4.7 232 Reviews 224 out of 226 (99%) reviewers recommend this product Outstanding Warranty Protection The heat exchanger in this packaged unit is covered by a 20-Year Limited Warranty and all functional parts are covered by a 10-Year Parts Limited Warranty. The GPG13M Packaged Gas/Electric unit provides energy-efficient cooling and heating performance in one self-contained unit. This unit is suitable for ground-level or rooftop installations and horizontal or downflow applications. 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.