HVAC Training in New Hampshire
Prior to beginning work as an HVAC technician, mechanic, or installer in NH, a person must receive appropriate training. Currently, there are two main entities who are responsible for accrediting HVAC schools nationwide: HVAC Excellence and the Partnership for Air-Conditioning, Heating, Refrigeration Accreditation (PAHRA). There are no programs in NH accredited by either of these two organizations as of August 2026.
Manchester Community College
Manchester Community College offers an associate of applied science (AAS) degree program in HVAC technology. As part of the curricula, students receive preparation for several certifications such as the EPA Section 608, NORA Bronze, OSHA 10, and NH Gas Piping Installation. Apart from an associate of applied science (AAS) degree, Manchester Community College also offers the following certificates: advanced HVAC certificate, air conditioning/refrigeration certificate, heating services certificate, and HVAC certificate.
The advanced HVAC certificate is made up of 20 credit-hours. It includes courses such as testing and balancing, DDC and building automation controls, gas equipment installations and service theory, and advanced HVAC.
The air conditioning/refrigeration certificate consists of 26 credit-hours. Courses include electricity (theory and lab), the fundamentals of refrigeration (theory and lab), residential and commercial air conditioning and heat pumps (theory and lab), and commercial refrigeration (theory and lab).
The heating services certificate comprises 30 credit-hours. Coursework includes topics such as related electricity, fundamentals of heating, fundamentals of gas heating and piping installation, hydronic systems, and warm air and steam systems.
The HVAC certificate program requires the completion of 48 credits. The curriculum of this program includes courses from all the certificates mentioned above and takes five semesters to complete.
Finally, the AAS degree comprising 66 credit-hours includes coursework similar to that of the air conditioning/refrigeration and heating services certificate, with the addition of introduction to HVAC systems, MCC essentials, college composition, and other electives.
Students who graduate from this program will be able to read and interpret electrical diagrams, design and install HVAC systems, diagnose, repair faults and perform maintenance on HVAC systems, and demonstrate positive work traits and good customer skills. They can take up opportunities as HVAC contractors, fuel providers, property management companies, gas utilities, manufacturers, hospitals, and system design.
- Location: Manchester, NH
- Accreditation: New England Commission of Higher Education
- Expected Time to Completion: AAS degree, air conditioning/refrigeration certificate, and heating services certificate (two years); advanced HVAC certificates (one year)
New Hampshire School of Mechanical Trades
The New Hampshire School of Mechanical Trades—also in Manchester—provides several certificate courses. For example, one of its 120-hour HVAC courses focuses on residential and commercial air conditioning units with preparation for the EPA Section 608 certification; another 120-class focuses on becoming an oil heat technician and provides preparation for the National Oilheat Research Alliance (NORA) certification exam.
For a more comprehensive course, aspiring HVAC workers might consider the 120-hour HVAC/R program or the 240-hour HVAC and oil heat technician combo course.
The air conditioning course focuses on residential and light commercial air conditioning units and is designed for students who have little or no experience but desire a career in the HVAC industry.
The HVAC equipment installation course trains students in how to install leading industry AC equipment. The fully functional lab includes a variety of equipment and systems and students practice skills such as soldering, brazing, measuring and cutting piping, wiring systems, using metering devices, and choosing materials for ductwork. The course takes 120 hours to complete and students are expected to have their Section 608 certification before beginning it.
The oil heat technician course has been developed over several years to provide students with the necessary knowledge and understanding required towards becoming qualified technicians in the oil heat industry. This course is designed to instruct students in the proper and safe operation of the equipment.
- Location: Manchester, NH; Hampton, NH
- Expected Time to Completion: Air conditioning technician course and oil heat technician course (15 weeks); air conditioning tech, day course and oil heat technician, day course (8 weeks); A/C and oil heat combo (25 weeks); A/C and oil heat combo, day course (14 weeks); HVAC equipment installation (15 weeks)
Granite State Trade School
The Granite State Trade School in Raymond not only provides distance-based learning but also has a two-year, on-campus evening course comprising 300 hours. Course content includes installation and repair of HVAC/R equipment, thermodynamics, maintenance practices, meters, tools, and measuring devices, refrigerant cycle, control systems, furnaces, condensers, heat pumps, general customer service, split systems, and more. It is one of the more affordable four-semester programs in the country.
This in-person 300-hour certificate includes topics such as introduction to HVAC/R trade, energy efficiency, fundamentals, basic sizing techniques, commercial air conditioning and refrigeration, psychometrics, systems and components, adjusting and balancing techniques, heat pump systems and components, geothermal heat pumps, and air-source heat pumps, among others.
The highly experienced skilled instructors can help students achieve their career and educational objectives, whether they are licensed professionals looking for continuing education classes, or wish to start a career in the field. They will train with the best lab facilities, and also be provided with valuable on-the-job training that prepares them for real role challenges.
- Location: Raymond, NH
- Expected Time to Completion: Two years
New Hampshire Training Institute
The New Hampshire Training Institute (NHTI) offers an HVAC/R technician program and an HVAC/R certified technician program. Both are fully online. Coursework is presented via videos, reading assignments, service call simulations, and practical applications.
The HVAC/R technician prepares students for entry-level positions. Coursework includes topics such as heat, temperature, and pressure; matter and energy; refrigeration and refrigerants; safety practices; basic electricity and magnetism; comfort and psychometrics; and residential energy auditing, among many others. Graduates are qualified to sit for exams, including EPA 608 certification, HVAC Excellence employment-ready certificates, and NATE ready to work certificate.
The certified technician program is designed for technicians with a year or more of experience. A sample of the coursework includes calibrating instruments; advanced automatic controls-digital direct controls and pneumatics; troubleshooting electric motors; special refrigeration systems; and others. Graduates are qualified for industry certifications such as HVAC Excellence core and professional exams and NATE core and speciality exams.
- Location: Concord, NH
- Expected Time to Completion: One year
New England Trade School
The 72-hour HVAC program at the New England Trade School is fully online and makes use of hands-on virtual reality (VR) training. Graduates are skilled in HVAC safety and OSHA compliance; HVAC fundamentals and electrical work; refrigeration principles and evacuation techniques; and HVAC troubleshooting and order of operations.
Coursework includes trades math; heat transfer; evaporators; meters, circuits, loads, and switches; compressor relays and capacitors; troubleshooting motors; and gas furnace troubleshooting, and others. Students also complete coursework that prepares them for the EPA certification exam, at the end of which they take the exam. They also receive OSHA certification and NATE ready to work certification.
- Location: Keene, NH
- Expected Time to Completion: 3 to 6 months
For some prospective HVAC students in NH, attending an on-campus program can be difficult, particularly for people living in more remote regions of the state. Luckily, there are some e-learning opportunities available, in addition to the online schools profiled above. To learn about the distance-based training options available, check out the online HVAC schools page.