The HVACR Training Authority®


Helpful Links

Below are some links to sites that may be useful to you as your career in the HVACR industry grows*: 


Air Conditioning Contractors of America (ACCA) Is a contractor-led national association representing the HVACR industry.

Air-Conditioning, Heating, and Refrigeration Institute (AHRI) A trade association representing manufacturers of air conditioning, heating and commercial refrigeration equipment. AHRI’s 350 member companies account for more than 90 percent of the residential and commercial air conditioning, space heating, water heating, and commercial refrigeration equipment manufactured and sold in North America.

Air Movement and Control Association International, Inc. (AMCA) A not-for-profit international association of the world's manufacturers of related air system equipment.

American Gas Association (AGA) The American Gas Association represents local energy utility companies that deliver natural gas to homes, businesses and industries throughout the United States.

American Society of Heating Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE) An international organization whose sole purpose is to advance the arts and sciences of HVACR for the public’s benefit.

Cooling Technology Institute (CTI) The Cooling Technology Institute is a nonprofit self-governing technical association that is dedicated to improvement in technology, design, performance and maintenance of evaporative heat transfer systems.
Food Marketing Institute (FMI) An organization who conducts programs in research, education, industry relations and public affairs on behalf of its members, food retailers and wholesalers.

Heating, Airconditioning and Refrigeration Distributors International (HARDI) An organization whose members are involved in the marketing and distribution of heating, air conditioning, and refrigeration equipment, parts and supplies, sheet metal, controls, filters, and other related HVACR products.

Heating, Refrigeration and Air Conditioning Institute of Canada (HRAI) A national trade association of manufacturers, wholesalers and contractors in the Canadian HVACR industry who provide the products and services for indoor comfort and essential refrigeration processes.

HVAC Computer Systems, Ltd. Provides HVAC Load calculation software written by contractors for contractors.

Hydronics Industry Alliance (HIA) The upsurge in consumer interest in hydronic heating has inspired the launching of a new Web site,, from the Hydronics Industry Alliance, a coalition of members of the Hydronics Institute Division of GAMA.

Indoor Air Quality Association (IAQA) The Indoor Air Quality Association is an organization dedicated to promoting the exchange of indoor environmental information, through education and research, for the safety and well being of the general public.

International Institute of Ammonia Refrigeration (IIAR) An organization that serves those who use ammonia refrigeration technology through education and advocacy.

Mechanical Contractors Association of America (MCAA) An organization representing companies that install the mechanical and plumbing equipment that makes commercial, industrial and institutional buildings livable, comfortable and functional.

Mobile Air Conditioning Society Worldwide (MACSW) A trade association dealing primarily with automotive and vehicle air conditioning that provides Section 609 certification.

National Air Duct Cleaners Association (NADCA) An organization dedicated to the proper cleaning and restoration of commercial and residential HVAC systems.

NAFA National Air Filtration Association (NAFA) The National Air Filtration Association is comprised of individuals and companies engaged in the sale, service and manufacture of the air filtration products.

National Association of Home Builders (NAHB) A trade association whose members include home builders and/or remodelers and a number of associates working in closely related fields within the housing industry, whose mission is to enhance the climate for housing and the building industry.

National Association of Oil Heating Service Managers (NAOHSM) An association devoted exclusively to education and the advancement of oil heat service professionals.

National Electrical Contractors Association (NECA) NECA is the voice of the $100 billion industry responsible for lighting, power, and communication systems in buildings and communities across the United States.

National Environmental Balancing Bureau (NEBB) An international certification association for firms that deliver high performance building systems, whose members perform testing, adjusting and balancing (TAB) of HVAC systems, commission and retro-commission building systems, sound and vibration testing, and test and certify laboratory fume hoods as well as electronic and biological cleanrooms.

Plumbing-Heating-Cooling Contractors-National Association (PHCC) The oldest national trade organization in the construction industry serving plumbing, heating and cooling contractors.

Radiant Professionals Alliance (RPA) An association consisting of manufacturers, distributors, contractors, reps and professionals who want to help shape the radiant heating and cooling future.

Refrigerating Engineers & Technicians Association (RETA) An international society of individuals and companies involved in the design, operation and service of industrial refrigeration systems.

Sheet Metal and Air Conditioning Contractors' National Association (SMACNA) SMACNA members perform work in industrial, commercial, institutional and residential markets. They specialize in heating, ventilating and air conditioning; architectural sheet metal; industrial sheet metal; kitchen equipment; specialty stainless steel work; manufacturing; siding and decking; testing and balancing; service; and energy management and maintenance.

Skills USA A national nonprofit organization serving teachers and high school and college students who are preparing for careers in trade, technical and skilled service occupations.

South Florida Air-conditioning Contractors Association (SFACA) For over 25 years, the South Florida Air-conditioning Contractors Association (SFACA) has been helping HVACR suppliers and contractors of every size, type and description, to build their businesses into more productive, profitable enterprises.


Building Performance Institute, Inc. (BPI) BPI’s mission is to enhance the health, safety, comfort, durability, and energy efficiency of residential buildings by providing skills verification and promoting best-practices by building trades.

ESCO Institute works to improve the technical competency of the current and future HVACR and building science workforce by offering training manuals, software, instructional resources, programmatic accreditation, professional development and more than 70 industry certifications.

HD Supply Maintenance Solutions provides professional training classes to help you become an experienced HVAC technician. All skill levels are welcome. If you are looking for more advanced training, we offer additional professional training classes as well. Visit our website for more information.

HVAC Training School, Inc. Offers HVAC training through short-term and longer, hands-on classes for those who cannot afford to be out of the workplace for extended periods of time. A comprehensive HVAC training program for heating, ventilation, air conditioning and refrigeration technicians that is available online, at their convenience.

North American Technician Excellence (NATE) NATE is a leading certification program for technicians in the heating, ventilation, air-conditioning and refrigeration industry.


ACHR News HVACR Directory & Source Guide is a directory including over 2,500 company listings encompassing the HVACR industry.

HVAC-Talk The bulletin-board site where HVAC Professionals gather to get help and exchange ideas.

HVACPROForums An interactive community exclusively for HVAC professionals. The collective years of HVAC experience and the knowledge our forum members share make this an invaluable resource for those in the HVAC industry. An online Directory and Information site offering current News, Events, Job Listings, and Training resources for industry professionals.

State Licensing A site that outlines licensing requirements for HVACR contractors and technicians for all 50 states.

The HVAC Source - HVAC industry news, links, jobs and information.

The Plant Maintenance Resource Center A leading online resource for maintenance and reliability professionals, with links to more than 700 articles on maintenance-related topics and listings of several hundred maintenance-related software packages. 

*Please note RSES provides these links to visitors to our website as a courtesy. We accept no liability for information that you encounter once you click on these links. For more information, please read our Terms & Conditions.


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RSES is the leading education, training and certification preparation organization for HVACR professionals. RSES publishes various comprehensive industry training and reference materials in addition to delivering superior educational programs designed to benefit HVACR professionals at every stage of their careers through instructor-led training courses, online training for HVAC, educational seminars, interactive CD and DVD products, industry-related reference manuals, and helpful technical content through Service Application Manual chapters, the RSES Journal, the RSES Journal archives and feature articles, as well as web-exclusive features.

Beginning with basic theory and extending to complex troubleshooting, training courses covering refrigeration and air conditioning, heating, electricity, controls, heat pumps and safety may be conducted in a classroom environment or though self study. RSES publications may be purchased by schools, contractors, manufacturers or any other industry group wanting to conduct comprehensive training programs. Seminars covering air conditioning troubleshooting, electrical troubleshooting, compressor training, condenser training, refrigerant piping practices, DDC controls, and more are held in various cities across North America.

Select training programs offer Continuing Education Units (CEUs) and NATE Continuing Education Hours (CEHs).

In addition, RSES offers industry certification preparation materials for refrigerant handling (EPA Section 608), R-410A and North American Technician Excellence (NATE) examinations.

RSES’ monthly magazine, RSES Journal, serves HVAC contractors, service technicians, students, operations/maintenance managers, engineers and technicians who work in the residential, light commercial, commercial and institutional markets on air conditioning, warm-air heating, refrigeration, ventilation, electrical, ice machines, chillers, hydronic heating, piping, refrigeration control and energy management, building automation, indoor air quality and duct cleaning, and sheet metal fabrication equipment and/or systems.
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