If you live in an old home with no AC and old windows, this is the fan for you! We've had a lot of fans over the years but none of them come close to working as well as this fan does. We open our screen door in the early evening and point it towards the screen door and help push out any hot air in the house. Then when the sun sets we put it in front of a window to face into the house and bring in cool air and man does it work! Some morning get a little too chilly if you put it on one of the higher settings. I am buying a couple more of these, they're awesome!