Gree airconditioners, including DC inverter airconditioners and regular non-inverter air conditioners come in a variety of sizes, colors, and capacities, ranging from 1 ton (12000 BTU) models to 2 ton (24000 BTU) models for wall mounted split type air conditioners. In general the 1.5 ton model (18000 BTU) is the most popular capacity for domestic and office use. Larger floor standing models range from 2 ton to 4 ton (48000 BTU). Gree airconditioners are energy efficient and have high cooling capacity and low noise levels. Inverter air conditioners are particularly energy efficient and also come in cool only and both heat and cool variants and can be used year round for both heating and cooling.