21 SEER: Quad-Zone Mini Split AC - Heat Pump: With a 39000 BTU total Cooling-Heating Capacity, this Inverter DC mini split system can cool or heat 4 seperate zones [350 + 350 + 350 + 550 ft²] for a total coverage area of 1650 ft². A 21 SEER rating coupled with Inverter technology provides the benefits of low operation temps, rapid cooling as well as maximum energy efficiency. Comes pre-charged with R410A; Includes LCD remotes. 2 Yr Part - 5 Yr Compressor warranty.