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Heating, Ventilation, Air Conditioning and Refrigeration (HVAC): Home
Provides access to journals and magazines that are useful for researching a vocation, finding an appropriate institution of learning, job searching and maintaining a career.
Provides information on how air conditioning and heating systems work. Also provides information on purchasing and maintaining a system as well as tips on how to save energy.
As part of its commitment to enhancing public safety and to serving the public's increasing interest in technical information, NFPA makes its codes and standards available online for free.