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Heating, Ventilation and Air Conditioning FAQs

North American Technician Excellence (NATE), What Is That?

North American Technician Excellence (NATE,) headquartered in Arlington, VA., was founded in 1997 and is the nation's largest non-profit certification organization for heating, ventilation, air conditioning and refrigeration technicians. NATE is the only technician certification organization governed, owned, operated, developed and supported by the HVACR industry.

Old Heating and Air Conditioning System is Broken, Can you Fix It?

Sierra Heating and Air Conditioning services all brands of air conditioning and heating systems. If you find yourself or your business in need of a repair, Sierra Heating and Air Conditioning can manage the job. Sierra Heating and Air Conditioning has over 35 years of experience in dealing with all brands of heating and AC equipment.

Certified Factory Trained Service Technicians, Does Sierra Employ Them?

The majority of our service technicians and installers at Sierra are EPA certified and are trained in house and by factory personnel. Our technicians have many years of Heating and Air Conditioning industry experience. Most of our service technicians are N.A.T.E certified. Our technicians use state of the art instruments and testing equipment including equipment to protect the environment. Sierra Heating and Air Conditioning is able to provide you with timely, professional service.

What does HVAC Stand For?

HVAC (pronounced either "H-V-A-C" or "aetch-vak") is an acronym that stands for the closely related functions of "Heating, Ventilating, and Air Conditioning" - the technology of indoor or automotive environmental comfort. HVAC system design is a major subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. Refrigeration is sometimes added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped as in HACR (such as the designation of HACR-rated circuit breakers).