It’s 90 degrees outside. Everywhere you look, there is a heating and cooling service tech on the road heading to his/her next service call. Whether it be a residential home, or commercial office building, those guys are in high demand. Often times, on hot days, they have service calls lined up, one right after the other. According to the Bureau of Labor and Statistics, U.S. Department of Labor (2012-13), job opportunities for HVACR technicians are expected to be excellent, particularly for those who have completed training at an accredited technical school or through a formal apprenticeship.