Heat pump system 34,100 BTU/h. SEER rating 14.0, No expensive, messy and disruptive duct construction., Unlike traditional window air conditioners, ductless split systems leave window views unobstructed. And, because these are permanent installations, there is nothing to remove or store over the winter., Exceptional energy efficiency is the result of high tech Inverter Technology. Systems use only the power they need to reach the desired set point. Turn off units in unoccupied rooms to save even more., Ductless systems keep the operating noise of the condenser unit outdoors.