I am in N. Florida and our temps have been over 100. Well, I have been on the computer many many hours since I lost my beautiful silkie hen yesterday evening. I have found and ordered three portable swamp coolers and I hope they arrive before I have any more losses. I weighed the time and materials cost to construct three units for my 3 coops and don't believe I could accomplish it soon enough to beat this horrible heat wave before it claims more of my precious babies. Also, I have no confidence it would work after I went to the trouble to make it! HA! And I'd probably get heat stroke out there working on them too. So, after extensive research I found this little unit called a Ninja Portable Evaporative cooler for $99. It has a 3 speed fan, exterior size is 18 x 11 x 26", 22 pounds on rollers, it covers 150 sq.ft. with air flow of 650 cubic feet per minute (and throws the air flow 33 feet from the unit). You have to put water in it but the reservoir holds over 4 gallons which will not have to be refilled as often as smaller capacity models. Even though I had to get three of them, I still think I am better off buying the compact little unit instead of rigging some goshawful looking thing that would sit outside my coops littering my deck. I may be a redneck, but I don't want my house to shout it to others! HA! I'm in a residential neighborhood and I'm pressing my luck having chickens at all....I can't do anything to get voted off the street. If you want to consider this option, just copy and paste this link and see what they have that might fit your needs. They have a very large selection and the best prices I found. Be sure to make your purchase on a Friday and get a 7% discount off your total purchase. http://www.air-conditioner-home.com/symphony-ninja/ They're in California so allow a few days for shipping unless you're closer than I am in Florida. I hope and pray it's the solution. If not, I have 30 days to decide and return them.