North Carolina HVAC Contractor License Vocabulary Game
Exam terms with clues and explanations by OpenExamPrep.
About the North Carolina HVAC Contractor License Vocabulary Games
4 free word games built on 20 North Carolina HVAC Contractor License terms across 8 topics. Every game deals terms at random and shows what each term means, so you can keep playing as long as you like.
How to Play
- 1.Read the clue and type the term (3 to 6 letters).
- 2.Green: right spot. Yellow: wrong spot. Gray: not in the term.
- 3.Solve it in 6 tries, then read the explanation.
- 1.Swap two neighboring tiles to line up 3 of the same term.
- 2.Longer lines, two lines at once and chains score more.
- 3.Play until no swap can make a line.
- 1.Flip two cards. A matching pair stays face up.
- 2.Each pair you find shows what the term means.
- 3.Clear the board in as few moves as you can.
- 1.Find each listed term in the letter grid.
- 2.Drag across its letters: across, down or diagonally.
- 3.Find all five as fast as you can.
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Topics in the North Carolina HVAC Contractor License Vocabulary Game
Licensing and state law
Business and contracts
Industry standards
Heating and cooling
Ratings and refrigerants
Air distribution
Heating fuels
Heat measurement
Sources for these terms (20)
- Chapter 2: Refrigerated Condensers · Source checked 2026-11-03
- Incorporate Minimum Efficiency Requirements for Heating and Cooling Products into Federal Acquisition Documents · Source checked 2026-11-03
- Ozone-Depleting Substances · Source checked 2026-11-03
- Stationary Refrigeration and Air Conditioning · Source checked 2026-11-03
- IMC - International Code Council · Source checked 2026-11-03
- Standards & Codes - ACCA · Source checked 2026-11-03
- Glossary · Source checked 2026-11-03
- Pressure and Gas Flow Unit Conversions · Source checked 2026-11-03
- 10 CFR 430.2 - Definitions (CFR 2026 edition) · Source checked 2026-11-03
- 10 CFR 430.32 - Energy and water conservation standards and their compliance dates (CFR 2026 edition) · Source checked 2026-11-03
- Section 608 Technician Certification Requirements · Source checked 2026-11-03
- Background on HFCs and the AIM Act · Source checked 2026-11-03
- HFC Allowance Allocation and Reporting · Source checked 2026-11-03
- Technology Transitions HFC Restrictions by Sector · Source checked 2026-11-03
- Building America Best Practices Series, Volume 14: Energy Renovations - HVAC, A Guide for Contractors to Share with Homeowners (PNNL-20421) · Source checked 2026-11-03
- 2021 International Mechanical Code - IMC (Building America Solution Center) · Source checked 2026-11-03
- 1910.110 - Storage and handling of liquefied petroleum gases (paragraphs (a) to (d)(13)) · Source checked 2026-11-03
- G.S. 87-21 - Definitions; contractors licensed by Board; examination; posting license, etc. · Source checked 2026-11-03
- G.S. 44A-12 - Filing claim of lien on real property · Source checked 2026-11-03
- License Renewal · Source checked 2026-11-03
About the NC HVAC Exam
North Carolina HVAC licensing requires passing a technical exam and a business and law exam, both administered by PSI. Heating licenses are H1 (steam, vapor or hot water), H2 (forced air with mechanical refrigeration capacity in excess of 15 tons) and H3 (15 tons or less); Class I covers all structures and Class II is limited to single-family detached dwellings. A separate license from the State Board of Refrigeration Contractors covers commercial refrigeration.
Exam sponsor: NC State Board of Examiners of Plumbing, Heating & Fire Sprinkler Contractors / NC State Board of Refrigeration Contractors. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Assessment
Question count not published by the exam provider
Time Limit
4 hours (technical) + 1.5 hours (business & law)
Passing Score
A grade of 70 on each part
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Frequently Asked Questions
Is the NC HVAC vocabulary game free?
Yes. The game is free to play with no sign-up. Signing in adds AI explanations for any term.
How do the NC HVAC vocabulary games work?
There are 4 games built on 20 NC HVAC terms. In Guess the Term, a clue describes one term and you have six tries to spell it, with green, yellow and gray letters showing how close you are. In Term Match, six terms appear as colored tiles; swap neighbors to line up three or more of the same term, and each match shows what the term means. In Term Pairs, twelve face-down cards hide six pairs of terms; flip two at a time to find each pair, and every pair you find shows what the term means. In Term Search, five terms hide in a grid of letters, reading across, down or diagonally; drag across a term to circle it, and each term you find shows what it means.
Where do the NC HVAC terms come from?
OpenExamPrep researched each term from the NC State Board of Examiners of Plumbing, Heating & Fire Sprinkler Contractors / NC State Board of Refrigeration Contractors content outline and primary sources, listed under Sources on this page. The game is independent study material, not an official exam resource.
What heating license do I need for residential HVAC work in North Carolina?
Most residential HVAC contractors need an H3 license (forced air systems 15 tons or less). H3 Class 2 limits you to single-family homes, while H3 Class 1 allows work in any building. H2 is needed for systems over 15 tons.
How do I qualify for an NC heating contractor license?
You need 4,000 hours of on-site experience (up to half may be academic credit), must pass a 4-hour technical exam and a 90-minute business/law exam (both 70%), and pass a background check.