An estimated one in 2,000 babies is born with all or part of a limb missing. This number includes everything from a missing part of a finger to the absence of both arms and both legs. Congenital amputation is the least common form of amputation. There have been occasional periods in history where the frequency of congenital amputations has increased.
Leading general contractors, architects and building managers rely on Design HVAC for its design/build expertise in HVAC systems, cooling systems, temperature control, process piping and air quality systems.
Main article: Building management system. The term building automation system, loosely used, refers to any electrical control system that is used to control a buildings heating, ventilation and air conditioning (HVAC) system.