The TCL Q-Series 12,000 BTU Window AC with Heat Pump offers up to 32% energy. Actual coverage may vary based on room size and configuration (ceiling height, number of windows, and other varying conditions) and environment factors such as number of occupants, home insulation, etc. 67% heating and 32% cooling energy savings potential, and Up to 3.29x more efficient, when comparing the H12W4KWH Rated Power Input (w), EER, and COP rating to TCL's 12,000 BTU traditional window AC with electrical heating Rated Power Input (w), EER, and COP rating. Heating efficiency and energy savings will vary with ambient temperature. Heating savings is calculated with an ambient temperature of 47-degrees F with 100% heat pump utilization. Actual results may vary. Performance claims are based on internal laboratory testing conducted in accordance with ISO3744 standards. The actual performance and results of this product may vary based on individual usage, environmental factors, and other variables.