North Carolina Heating Contractor Group 3, Class 1 (Residential/Commercial)


The Heating Group 3, Class 1 classification covers the heating system of a building which produces heat to raise the temperature of the space within the building for the purpose of comfort in which electric heating elements or products of combustion exchange heat either directly with the building supply air or indirectly through a heat exchanger and using an air distribution system of ducts. This license also covers air conditioning units of 15 tons or less. Class 1 contractors may do this work in residential, commercial, industrial, or institutional buildings.

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Required Books 

The references listed below are necessary to prepare for the examinationand will NOT be provided at the testing center. , however they will not be allowed into the testing center. As of 08/01/17 Candidates must provide their own reference materials.

Reference materials must be hardback or soft-cover (no loose-leaf).  References can be highlighted but may only be tabbed with tabs manufactured or provided by the publisher. 

The book for the Business and Law portion of the exam can only be obtained by directly contacting the State Licensing Board. The references listed below are available for purchase from our online contractor’s bookstore or by calling our office at 1-800-992-1910.

Notice: As of January 1, 2019 the 2018 North Carolina Codes will be in effect for testing. Please contat us if you have questions

*There are additional downloadable documents for the North Carolina Heating Group 3, Class 1 exam*

North Carolina General Statutes Chapter 87, Article 2, 21 North Carolina Administrative Code Chapter 50.

NOTE: Though not on the book list, the ACCA Duct Slide Rule will be provided for use at the exam.  It would be beneficial to know how to use it before testing.  Instruction on using the ACCA Duct Slide Rule is covered in our seminar.

Add All Required Books to Cart ($1,231.00)

Additional Services

  • Pre-approval from the state is required to sit for the examination.
  • Please note that there is a separate North Carolina Business and Law exam that needs to be passed to get this license. The Business Law exam is taken at the same time as the trade exam and the price for the Business Law exam is included in the trade exam fee.

    Applicants are required to have at least 4,000 hours (2 years) of on site full time experience in the design or installation of plumbing or heating systems related to the category for which license is sought, even if no license was required for the work performed.

    Up to one half or 2,000 hours (45 quarter hours or 30 semester hours) of the experience requirement may be in academic or technical training directly related to the category for which the exam is requested.

  • There are no State mandated minimum financial, bonding, or insurance requirements for this license at this time.

The Heating Group 3, Class 1 classification covers the heating system of a building which produces heat to raise the temperature of the space within the building for the purpose of comfort in which electric heating elements or products of combustion exchange heat either directly with the building supply air or indirectly through a heat exchanger and using an air distribution system of ducts. This license also covers air conditioning units of 15 tons or less. Class 1 contractors may do this work in residential, commercial, industrial, or institutional buildings.

To apply, contact North Carolina State Board of Examiners for Plumbing, Heating, and Fire Sprinkler contractors at 1-919-875-3612.

The fee for the application is $25 and the licensing fee for initial license and for renewal is $125.

Applications will be processed in 2 to 4 weeks from the time they are received.

All licenses expire on the last day of December in each year following their issuance or renewal.

Important Contacts

To apply for a General Contractor and related trade licenses, contact:

Licensing Board for General Contractors
Post Office Box 17187
Raleigh, NC 27619
(919)571-4183
Applications and licensing information for Electrical licenses may be obtained be obtained from:

Board of Examiners of Electrical Contractors
PO Box 18727
Raleigh, NC 27619
(919)733-9042
Applications and Exam information for Plumbing, Heating & Fire Sprinkler license may be obtained from:

Board of Examiners of Plumbing, Heating & Fire Sprinklers
1109 Dresser Court
Raleigh, NC 27609
(919)875-3612
For all examinations Contact:

PSI Licensure: Certification
ATTN: Examination Registration NC
3210 E Tropicana
Las Vegas, NV 89121
(800) 733-9267 phone
702.932.2666 fax

North Carolina does not have reciprocity for this license.

North Carolina requires 6 hours of approved continuing education every year as a condition of license renewal. Continuing education hours must be completed prior to your license expiration each year. 4 hours of continuing education must be on the current code related to your license and 2 hours must be on a subject related to heating.
  • The fee for the exam is $100 ($25 application fee and $75 for the exam).
  • The Heating Group 3, Class 1 exam has 90 questions with a time limit of 4 hours. The Business Law exam has 50 questions with a 1.5 hour time limit.  As of August 1, 2017 Candidates shall be required to bring all of their own books and materials to the exam. 

    The exam is designed to test the applicant’s knowledge concerning the analysis of plans and specifications, estimating costs, fundamentals of installation and design, codes, fire hazards, and related subjects as they pertain to heating.

  • An applicant has 30 days to take the exam once approval has been given.
  • To schedule your exam after obtaining approval, you must contact PSI at 1-800-733-9267.
American Contractors currently a preparation seminar for the North Carolina Heating Classifications and carries all the HVAC, Plumbing, Fire Sprinkler and Fuel Piping books needed. Please contact us for additional information, 1-800-992-1910.