I was looking for a unit that I could run off a generator and at least cool some of my house and this surely works! It's installed in a Florida room approx. 10'x22' (220sf) and I can run it with the sliding glass door open and cool my living room, dining room and kitchen to a comfortable/reasonable temperature. Love the Wifi and scheduling feature as I programmed this unit to run periodically through the hottest part of these Florida summer days and a little less through the night. I like the fact that these newer units use less electricity, I was able to run this off a Topshak 1000wh portable battery generator for a few minutes then it kicked off. Might need a more beefy portable generator.