New Hampshire Mechanical Safety and Licensing Board · checked 2026-10-20
New Hampshire HVAC License Requirements
Fuel gas fitting licenses for gas piping, appliance installation and service. The Mec 300 rules read create no general HVAC license; this page covers the fuel gas credentials heating and cooling installers hold. Fuel Gas Service Technician: 1 year of experience at minimum, plus an exam.
- 1FGPI · Fuel Gas Piping Installer 6 months
- 2FGIT · Fuel Gas Installation Technician 6 months
- 3FGST · Fuel Gas Service Technician 1 year
License levels in New Hampshire
The New Hampshire path has 3 steps on this page: Fuel Gas Piping Installer, Fuel Gas Installation Technician and Fuel Gas Service Technician. The source counts experience in hours and classroom instruction separately; the "time from start" column turns those hours into full-time years at 2,000 hours a year.
| Level | Experience | Classroom | Time from start | Exam | Fees |
|---|---|---|---|---|---|
| FGPI Fuel Gas Piping Installer | 1,000 hours | 60 h | 6 months | Yes | Not printed |
| FGIT Fuel Gas Installation Technician | 1,000 hours | 100 h | 6 months | Yes | Not printed |
| FGST Fuel Gas Service Technician | 2,000 hours | 140 h | 1 year | Yes | Not printed |
Fuel Gas Piping Installer (FGPI)
Mec 305.02(b): at least 60 hours of educational training and 1,000 working hours of on-the-job experience within 60 consecutive months (up to 500 hours may come from heating oil work). A licensed New Hampshire plumber qualifies after the 60 hours of education. Source: N.H. Admin. Rules Mec 300.
Fuel Gas Installation Technician (FGIT)
Mec 305.03(b): at least 100 hours of educational training and 1,000 working hours within 60 months. A piping installer moving up needs a 40-hour formal program plus 1,000 hours. Source: N.H. Admin. Rules Mec 300.
Fuel Gas Service Technician (FGST)
Mec 305.04(b): at least 140 hours of educational training and 2,000 working hours within 60 months. An installation technician moving up needs a 40-hour formal program plus 2,000 hours. Source: N.H. Admin. Rules Mec 300.
New Hampshire also issues narrower classes on the same page: Hearth system installation and service technician: 60 hours of education and 2,000 hours and Domestic appliance technician: 40 hours of education, 30 hours of factory training and 1,000 hours.
Exam
3 of the 3 levels listed here require an exam: Fuel Gas Piping Installer, Fuel Gas Installation Technician and Fuel Gas Service Technician. The source does not print a pass mark. OPLC lists fuel gas licensing exams through Advanced Trade School, Granite State Trade School and NH Gasfitters Continuing Education Online. (NH OPLC, Mechanical Safety and Licensing education and certification requirements)
Fees
The New Hampshire source read prints no dollar amounts for this license. Fees are set in Saf-Mec 501.03 to 501.05; the OPLC page does not print the amounts.
Reciprocity
Mec 302.12 makes out-of-state licensees eligible for the fuel gas exam on proof of licensure; no partner states are named. Source: N.H. Admin. Rules Mec 300.
How New Hampshire compares
Among the 8 states on this site that state a minimum time to the top hvac credential, New Hampshire ranks 1 of 8 from shortest (1 year) to longest (5 years). No other state here sets exactly 1 year. The classroom requirement here peaks at 140 hours.
Same trade elsewhere: Connecticut · Massachusetts · California · Texas · Florida. All states side by side: HVAC license requirements by state.
Other trades in New Hampshire
- Electrician: Master Electrician: 4 years of experience at minimum, plus an exam.
- Plumber: Master Plumber: 4.5 years of experience at minimum, plus an exam.
All covered trades on one page: New Hampshire trade licenses.
Background reading: From apprentice to master: how long each state takes · How trade license exams work.
Questions
Who issues the hvac license in New Hampshire?
New Hampshire Mechanical Safety and Licensing Board (Office of Professional Licensure and Certification). Fuel gas fitting licenses for gas piping, appliance installation and service. The Mec 300 rules read create no general HVAC license; this page covers the fuel gas credentials heating and cooling installers hold.
How long does it take to qualify for the Fuel Gas Service Technician in New Hampshire?
1 year by this site's count. Mec 305.04(b): at least 140 hours of educational training and 2,000 working hours within 60 months. An installation technician moving up needs a 40-hour formal program plus 2,000 hours.
Does New Hampshire have hvac license reciprocity?
Mec 302.12 makes out-of-state licensees eligible for the fuel gas exam on proof of licensure; no partner states are named.
Sources and last checked
| What | Source | Checked |
|---|---|---|
| Issuing authority | New Hampshire Mechanical Safety and Licensing Board (Office of Professional Licensure and Certification) | 2026-10-20 |
| FGPI requirements | N.H. Admin. Rules Mec 300 | 2026-10-20 |
| FGIT requirements | N.H. Admin. Rules Mec 300 | 2026-10-20 |
| FGST requirements | N.H. Admin. Rules Mec 300 | 2026-10-20 |
| Law cited | N.H. Admin. Rules Mec 305.02 to 305.06 | 2026-10-20 |
This page summarises what the New Hampshire source said on 2026-10-20. It is general information, not legal advice; the board's own page and the statute are the authority and can change. Confirm with New Hampshire Mechanical Safety and Licensing Board before applying. The free official route is the board itself: its page, application forms and staff answer eligibility questions.