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How to get an HVAC license in New Hampshire

Hours, exam, fees and renewal for HVAC work in New Hampshire. Taken from official NH pages and checked .

Quick answer
  • Licensing body: NH OPLC — Mechanical Safety and Licensing Board
  • State journeyman license: No (No statewide HVAC journeyman. Fuel-gas specialty licenses cover LP/natural-gas appliance and piping work; oil heating certification is voluntary.)
  • Fuel Gas Service Technician: 2,000 hours field experience (or approved educational equivalent) within 60 months on gas appliances/equipment/piping. Up to 750 of those hours may be oil-fired work. Installation tech and piping installer: 1,000 hours (up to 500 oil).
  • Exam: see below, via OPLC / Prov
  • Code edition: Board exams via Prov (see OPLC exam updates). 2021 codes adopted July 1, 2024 per Board notice.

Requirements by license

Fuel Gas Service Technician

Experience2,000 hours field experience (or approved educational equivalent) within 60 months on gas appliances/equipment/piping. Up to 750 of those hours may be oil-fired work. Installation tech and piping installer: 1,000 hours (up to 500 oil).Source: gc.nh.gov · as of
ExamOPLC / Prov. Board specialty exam after meeting education/experience. Confirm current Prov bulletin with OPLC.Not confirmedSource: oplc.nh.gov · as of
Fees
  • Fuel gas fitter (piping / installation / service) app or renew: $198
  • Fuel gas trainee app or renew: $88
  • Mechanical business entity app or renew: $275
  • Oil heating technician (voluntary) app or renew: $50
Source: oplc.nh.gov · as of
RenewalEvery 2 years. Renew through OPLC. 3 hours code-update CE each year (6 hours per 2-year cycle) for licensees except apprentice/trainee.Source: oplc.nh.gov · as of · CE hours from OPLC Mechanical education page (3 hrs/yr code update).
CE to renew6 hours per 2 years
  • Code update
3 hours code update every year = 6 per renewal cycle (except apprentice/trainee).
Not confirmedSource: oplc.nh.gov · as of

License types in New Hampshire

  • No statewide HVAC/AC-only license
  • Fuel gas installation / service / piping installer
  • Fuel gas trainee
  • Hearth / domestic appliance specialties
  • Voluntary oil heating technician certification
  • Mechanical business entity
Source: gc.nh.gov · as of

Reciprocity (licensed in another state?)

RSA 153:28 lets the Board, through OPLC, enter mutual mechanical reciprocity for fuel-gas and plumbing specialties when the other state’s standards are equal or higher.Source: gc.nh.gov · as of

What we couldn't confirm yet

We only publish what we can tie to an official source. These items aren't published anywhere we could verify, so ask the office listed:

FAQ

NH HVAC license?

No statewide HVAC/AC-only card. Fuel-gas work needs an OPLC Mechanical fuel-gas specialty license.

Service tech hours?

2,000 hours in 60 months (some oil hours may count).

Already licensed? See New Hampshire HVAC license renewal & CE.

Other states

Compare every state side by side: license requirements by state · renewal & CE by state.