When summer heat hits, HVAC/R systems need to operate at peak efficiency

EVERETT, Wash., July 1, 2013 /PRNewswire/ --�According to the U.S. Small Business Administration, 40 percent of electrical use in commercial buildings is consumed by HVAC/R systems. With the summer heat ...

Source: http://finance.yahoo.com/news/summer-heat-hits-hvac-r-100000532.html

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