Mitsubishi Electric
The Mr. Slim H2i P-Series outdoor heat pump offers a 36,000 BTU/h cooling and 38,000 BTU/h heating capacity, along with the maker's new Hyper-heating Inverter (H2i) technology, which incorporates higher compressor speeds at low temperatures and re-collects heat energy normally wasted in the flash process at the outdoor coil. As a result, the unit is highly efficient, operating at 100 percent of rated heating capacity at 5 degrees F, 87 percent at -4 degrees F, and 70 percent at -13 degrees F, the maker says. 800-433-4822. www.mrslim.com.