NC HVAC Practice Questions - North Carolina HVAC Contractor License (Heating Refrigeration) Exam

What are the three heating license groups in North Carolina?

H1: residential only, H2: commercial only, H3: industrial only H1: water-based heating in any building, H2: forced air over 15 tons, H3: forced air 15 tons or less H1: gas only, H2: oil only, H3: electric only H1: installation, H2: repair, H3: maintenance

Correct Answer:

H1: water-based heating in any building, H2: forced air over 15 tons, H3: forced air 15 tons or less

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