A++ means that the product is rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Directive 2010/30/EU. A++ Samsung AR12KSWNAWKXET, Split system, White, Cooling, Dehumidifying, Heating, 3500 W, 3800 W, 4440 BTU/h Samsung AR12KSWNAWKXET. Type: Split system, Product color: White, Air conditioner functions: Cooling, Dehumidifying, Heating. Energy efficiency class (heating) (Average heating season): A+, Annual energy consumption (cooling): 201 kWh, Annual energy consumption (heating) (Average heating season): 823 kWh. Indoor unit width: 32.5" (82.6 cm), Indoor unit depth: 10.3" (26.1 cm), Indoor unit height: 10.3" (26.1 cm). Outdoor unit sound power level: 62 dB, Outdoor unit noise level: 46 dB, Outdoor unit width: 28.3" (72 cm). Certification: CE