Fujitsu Ductless heating and cooling systems are a convenient, single or multi room solution for homes or offices that formerly relied on electric baseboard heaters in the winter and window air conditioning units in the summer. Stylish, slim and elegant, these popular wall mounted units are designed for single rooms. Indoor units have a clean, aesthetic design and are small but mighty and shorter in length than competing units, helping them blend into any room. 13 and 14-SEER heat pump systems have over a 30% increase in efficiency over conventional 10-SEER models and feature environmentally friendly R410a refrigerant, both heating and cooling operation, quiet mode and easy maintenance. Ductless heating and cooling systems have been around for over 30 years and are used widely throughout the world.