Slim, trim and built for comfort, the Preferred^™ Series 38MBR ductless single zone heat pump is the perfect choice for heating and cooling your new or converted space. A fitting complement to our 40MBDQ high static Ducted indoor unit, this model knows how to keep its distance with up to 213 feet refrigerant line length. It knows how to perform as well with an Inverter-driven, compressor that delivers quiet, energy-saving heating and cooling.