Cool only or heat pump systems from 9,000-33,100 BTU/h. SEER ratings up to 19 No expensive, messy and disruptive duct construction. Most ductless systems can be up and running in about 4 hours. 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 (available on 18,000 + BTU models). Ductless systems keep the operating noise of the condenser unit outdoors. Auto-swing louvers keep cool air cirulating throughout the room. Auto-shut flaps maintain a sleek appearance when the unit is not running. Wireless remote control with 24-hour timer and sleep timer for easy operation regardless of where you choose to place your indoor unit. Washable, reusable air filters. Removable front grille for easier maintenance. Heat pump models automatically change over to heating when needed to maintain desired room temperature. 4 fan speeds plus auto-fan for extra comfort 4-speed fan with ultraquiet Sleep Setting