The Heating, Airconditioning & Refrigeration Distributors International (HARDI) announced North American HVACR average distributor sales for November 2011 were down 1.7 percent from the same month last year. The dip is the first such decline since October 2010.
This past December marked the 100th anniversary of the Rational Psychrometric Formulae, the cornerstone of all fundamental calculations in the air conditioning industry, developed by inventor Willis Carrier, Ph.D., founder of Carrier.
North American Technician Excellence (NATE) has selected the fourth and final winner in the “Showcase Your NATE” sweepstakes, which rewards contractors for promoting their NATE-certified technicians.