Tim Steele, foreman for The Cooler Company Heating & Air, installs a Breezair evaporative cooler on the roof of a home in Wheat Ridge as his colleague, Bowen Christensen, descends into the attic.

PITTSBURGH, Sept. 7, 2018 /PRNewswire/ -- An inventor from Tehochapi, Calif., has developed the SWAMP COOLER BOOSTER, a solar cover sized to fit on top of roof-mounted evaporative coolers used in ...