The 3rd Generation MrCool DIY mini splits are able to be easily installed by anyone, since no special tools, training, or equipment are required. And because it uses pre-charged Quick Connect lines, installation typically only takes a few hours. This unit has a capacity of up to 18k, which typically can cover up to 750 square feet. The 3rd Gen MrCool DIY units have a low refrigerant alert to help prevent costly repairs. It also has an auto start feature, so in the event of a power outage, when power is restored, your unit will come back on at the previous settings. These units also have a large outdoor temperature operating range, from as low as 5°F and as high as 122°F. it also is equipped with Auto, Sleep and Timer abilities. *Includes new MrCool Mini-Stat IR WiFi thermostat!