We installed 3 of these as a patio cover, staggered with a 12" separation. The effect has been similar to the airflow you'd get with a ceiling fan set to low. The surface temp on our house is down over 20'f in the summertime and our pets can be on the cement comfortably. I love these! We used metal, nylon coated cabling with a sliding tensioner and caribener to install. I see this vendor is offering them at a good price. You'll want metal screw in 'o rings' to connect them to, or a fence cap with an 'o' on top, the type you'd use to thread a top rail through on a chain link fence. Total install time: 30min's. Now that we have a camper, I'm getting one more so we can tie it with the nylon ropes between our trailer and campground trees...these are just great.