Double-Layer heat transfer evaporator coil;High-Efficiency Rotary Compressor;Blue Diamond Enamel Tank;Microchannel Condenser Coil Heat Exchanger;Variable Speed Fan for Whisper-Quiet Operation;EnergyStar Rated to meet federal and local rebates;UEF of up to 4.0;Demand Response Enabled;5 Usage Modes depending on need;Built-In Handles for Easy Maneuvering;10-Year Warranty on Tank & Parts