Mitsubishi PVA-AA36NL & PUZ-AK36NLHZ 36,000 BTU 21.2 SEER2 Multi-Position Air Handler Hyper Heat System - R454BMitsubishi PVA AA36NL & PUZ AK36NLHZ: 36,000 BTU Hyper Heat Multi Position Ducted Heat Pump System The PVA AA36NL air handler matched with the PUZ AK36NLHZ outdoor unit delivers 36,000 BTU of ENERGY STAR qualified heating and cooling for single zone spaces up to ~1,500 sq ft. H2i Hyper Heat technology supplies 100 % heating at 5 F and dependable capacity down to 13 F, while R 454B refrigerant and an inverter compressor boost efficiency and lower GWP.