A 12000-BTU ductless mini split built around a 115V circuit, this system cools and heats spaces of up to 600 square feet and keeps working in weather most units are not rated for, holding output from 5 degrees Fahrenheit in deep cold to 126 degrees Fahrenheit in extreme heat. Built-in WiFi means the setting can be changed from a phone at any hour and from anywhere, and the unit answers to Alexa as well as to the packaged remote, which reaches 26 feet. Inverter operation combined with R32 refrigerant gives an 18.1 SEER2 cooling rating and 8.2 HSPF2 in heating, with cooling drawing 980 watts and heating 920 watts. Seven modes and six fan speeds set how hard it works, 4D airflow spreads the 383 CFM so temperature evens out rather than pooling in one part of the space, and the thermostat covers 60 to 90 degrees Fahrenheit. A 24-hour timer schedules the day and a child lock keeps settings from being changed by accident. At 23 decibels the indoor head is quiet enough for sleeping or working nearby, and dry mode removes up to 66 pints of moisture a day. Chassis heating in the outdoor unit is what supports lasting performance in cold conditions. Self-cleaning and washable filters keep maintenance to a minimum. The cold-rolled steel, copper and aluminum system ships in two boxes: a 32.1 by 7.7 by 11.3 inch indoor head at 17.6 pounds, a 26.8 by 9.7 by 18.2 inch outdoor unit at 46.3 pounds, 13-foot copper gas and liquid pipes, a 15-foot communication wire, a 6.5-foot drain hose, a drain nozzle, remote and holder, wall cap, tape and putty.