19.2 SEER / 11.0 HSPF - Total zone control: individually controlled rooms (up to 8) with a single outdoor system With the MXZ-B multi-zone heat pump system, you can now enjoy ideal levels of comfort in the rooms you use most while reducing your energy costs. People in different rooms - like the kitchen, master bedroom or living room - can set temperatures for personalized comfort. Individual zone control Mix and match flexibility of indoor unit styles and combinations A wide range of indoor unit capacities that match the room size and requirements Flexible design options to tackle the most challenging multi-room installations Simple, quick, and cost-effective installation keeps install costs down on new construction and disruption to a minimum on renovations and refits Efficient systems, including multiple options that meet ENERGY STAR requirements