With a 24000 BTU total Cooling / HEATING Capacity, this Dual Zone INVERTER mini split AC - Heater can cool or heat TWO separate zones (2 x 12000 BTU) for a total coverage area of 1000 ft² (TWO 500 ft² areas). Inverter technology provides the benefits of low operation temps, rapid cooling / heating, as well as 16 SEER rating for maximum energy efficiency. R410A Pre-charged .