The MUZ-GS Heat Pump pairs with the MSZ-GS Wall-mounted Indoor Unit to create a single-zone heating and cooling system. This solution is perfect for applications or climates where heating is necessary, while its counterpart, the MUY-GS Air Conditioner, offers a single-zone cooling-only solution. The factory applies Blue Fin anti-corrosion coating to the heat exchanger's aluminum fins for increased coil protection and longer life. Capacities: 30,000 to 36,000 BTU/H Sound: as low as 48 dB(A) SEER2: up to 18.10 HSPF2: up to 10.0 COP: up to 2.86 ENERGY STAR®: No