A+++ means that the product is best rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Directive 2010/30/EU. a+++ Hisense TQ25XE0B, Split system, White, Cooling, Fan, Heating, 2600 W, 3000 W, LED Hisense TQ25XE0B. Type: Split system, Product color: White, Air conditioner functions: Cooling, Fan, Heating. Energy efficiency class (heating) (Average heating season): A++, Hourly energy consumption (cooling): 2.5 kWh, Hourly energy consumption (heating): 3.2 kWh. Indoor unit sound power level: 34 dB, Indoor unit type: Wall-mountable, Indoor unit noise level (low speed): 28 dB. Outdoor unit noise level: 57 dB, Outdoor unit width: 32.2" (81.8 cm), Outdoor unit depth: 11" (28 cm). Energy efficiency class (cooling): A+++