Providing up to 19.0 SEER and 10.6 HSPF energy efficiency, Models 18RLB, 24RLB, 30RLXB, and 36 RLXB are single-zone wall-mounted heat pumps rated at 18, 24, 30, and 36,000 BTU/h respectively. Optimized fan blades, condensers, and evaporators combine with variable speed inverter-driven compressors that automatically adjust to fluctuating room capacity requirements. Designed for single rooms, heat pumps also include ion deoderizing filter and wireless remote controller.