North Carolina Heating Group 3, Class II Contractor Exam Prep - Live Virtual + Self Study Training

The North Carolina Heating Group 3, Class II Contractor Exam Prep - Live Virtual + Self Study Training product is designed for students preparing for the North Carolina Heating Group 3, Class II Contractor exam who want a structured combination of live virtual instruction and self-study preparation. This training supports review of North Carolina administrative code provisions, residential code requirements, board laws and rules, business and project management topics, residential load calculation concepts, duct design principles, refrigeration and air conditioning fundamentals, Ductulator use, and open book reference-based exam preparation.

Heating Group 3, Class II exam preparation requires more than field experience installing residential comfort systems, working with ductwork, servicing heating and cooling equipment, reading plans, performing load calculations, coordinating inspections, managing jobs, or supporting HVAC projects. Students may need to review code administration, residential construction requirements, mechanical system coordination, board rule language, business law topics, project management responsibilities, heating and cooling load principles, duct sizing concepts, airflow terminology, refrigeration cycle fundamentals, equipment components, safety awareness, and efficient reference navigation.

This product is built around the listed study references for the North Carolina Heating Group 3, Class II Contractor exam: North Carolina Administration Code and Policies, 2018 Edition, North Carolina Residential Code, 2018 Edition, NC Board's Laws & Rules - 2026 Edition, NASCLA Business, Law, and Project Management 7th Edition, Manual J - Residential Load Calcs, reprinted 2016, Eighth Full Edition, Manual D, 2016, 3rd Ed, Modern Refrigeration and Air Conditioning, 22nd edition, and Ductulator. Students should use the live virtual training and self-study structure to organize these materials into a practical study routine.

This training is useful for North Carolina Heating Group 3, Class II candidates, HVAC technicians, residential heating and cooling professionals, duct installers, service technicians, project supervisors, qualifying parties, business owners, and students preparing for residential HVAC contractor licensing. Students with field experience can use the training to connect practical heating, cooling, duct, and service knowledge to exam-style reference preparation. Students newer to exam preparation can use the course structure to build familiarity with the references, code organization, calculation concepts, trade terminology, and business law topics.

Live Class Schedule

Live Class Schedule The live training schedule is organized around the books and technical references used on the exam. Click Here to View the Current Live Class Schedule

Exam Details

The North Carolina Heating Group 3, Class II Contractor exam is connected to residential HVAC knowledge, code compliance, business law, project management, heating and cooling load concepts, duct system design, refrigeration and air conditioning fundamentals, and contractor responsibility. Students preparing with this live virtual plus self-study training should be ready to review multiple references and practice locating information efficiently.

• Exam Name: North Carolina Heating Group 3, Class II Contractor Exam
• Product Type: Live Virtual + Self Study Training
• Study References: North Carolina Administration Code and Policies, 2018 Edition; North Carolina Residential Code, 2018 Edition; NC Board's Laws & Rules - 2026 Edition; NASCLA Business, Law, and Project Management 7th Edition; Manual J - Residential Load Calcs, reprinted 2016, Eighth Full Edition; Manual D, 2016, 3rd Ed; Modern Refrigeration and Air Conditioning, 22nd edition; and Ductulator.
• Study Focus: Administrative procedures, residential code provisions, board laws and rules, business and project management, residential load calculations, duct design, airflow, refrigeration fundamentals, heating and cooling equipment, Ductulator use, tables, definitions, and reference navigation.

Students should prepare for questions related to residential HVAC systems, building code coordination, permits, inspections, board responsibilities, business operations, project planning, contracts, risk awareness, residential heat gain and heat loss concepts, duct sizing, friction rate awareness, airflow terminology, equipment selection awareness, refrigeration cycle components, air conditioning service principles, safety topics, calculations, tables, and code definitions.

Because this exam uses several references, students should practice identifying which topic belongs to which book. Administrative procedures, permits, inspections, approvals, and code administration may point to the North Carolina Administration Code and Policies, 2018 Edition. Residential construction coordination, dwelling provisions, equipment location awareness, and residential code topics may point to the North Carolina Residential Code, 2018 Edition. Board responsibilities, regulated activity, compliance language, and rule-related questions may point to NC Board's Laws & Rules - 2026 Edition.

Business, law, and project management topics may point to NASCLA Business, Law, and Project Management 7th Edition. Residential load calculation questions may point to Manual J - Residential Load Calcs, reprinted 2016, Eighth Full Edition. Duct sizing and distribution system questions may point to Manual D, 2016, 3rd Ed or the Ductulator. Refrigeration, air conditioning, equipment, components, service principles, and HVAC fundamentals may point to Modern Refrigeration and Air Conditioning, 22nd edition.

Open Book Test

The North Carolina Heating Group 3, Class II Contractor exam is prepared for as an open book test using the listed references. Open book testing can be helpful, but it is not a shortcut. Students still need to understand residential HVAC concepts, recognize exam topics, know how each reference is organized, and practice locating information efficiently.

Open book preparation should focus on reference navigation, code organization, table use, definitions, section headings, calculation examples, rule language, business law organization, load calculation concepts, duct design terminology, refrigeration fundamentals, Ductulator use, and repeated review. Students should practice moving between technical, code, legal, business, calculation, and trade references without losing time.

Students should focus exam-room preparation on the references listed for this product and should follow current exam-day rules for approved books, tabs, highlighting, calculators, identification, scheduling, and testing procedures. Open book success depends on repeated practice using the correct references, not simply bringing books into the testing environment.

Licensing Steps

The North Carolina Heating Group 3, Class II Contractor exam may be part of a broader licensing, certification, qualification, or approval process. Licensing requirements, applications, classifications, qualifying rules, experience documentation, fees, approval steps, renewal responsibilities, local requirements, and testing procedures are controlled by the applicable authority or organization requiring the exam. Students should follow the current instructions for their specific path.

A practical preparation path for this live virtual plus self-study training may include the following steps:

• Confirm that the North Carolina Heating Group 3, Class II Contractor exam matches your licensing, certification, or qualification goal.
• Gather the study references listed for this product.
• Review each reference before beginning class and self-study sessions.
• Attend live virtual training sessions according to the posted class schedule.
• Use self-study time to reinforce topics covered during training.
• Study the North Carolina Administration Code and Policies, 2018 Edition for permits, inspections, approvals, responsibilities, procedural topics, and code administration.
• Study the North Carolina Residential Code, 2018 Edition for dwelling-related code provisions, residential system coordination, definitions, tables, and residential code navigation.
• Study NC Board's Laws & Rules - 2026 Edition for board rule language, contractor responsibilities, regulated activities, compliance expectations, and rule navigation.
• Study NASCLA Business, Law, and Project Management 7th Edition for business organization, contracts, estimating, project management, financial management, labor topics, safety, risk, and legal responsibilities.
• Study Manual J - Residential Load Calcs, reprinted 2016, Eighth Full Edition for residential heat loss, heat gain, design conditions, load calculation terminology, and calculation process awareness.
• Study Manual D, 2016, 3rd Ed for duct design, airflow, friction rate, duct sizing, fittings, and distribution system concepts.
• Study Modern Refrigeration and Air Conditioning, 22nd edition for refrigeration cycle fundamentals, system components, equipment operation, service principles, controls, and HVAC troubleshooting concepts.
• Practice using the Ductulator for duct sizing, airflow, and friction rate awareness.
• Review current exam-day rules for approved references, tabs, highlighting, identification, calculators, scheduling, and testing procedures.

State Requirements

North Carolina Heating Group 3, Class II Contractor requirements may vary by application path, classification, qualifying rules, experience expectations, approval process, local requirements, fees, renewal responsibilities, and other requirements. Students preparing for the North Carolina Heating Group 3, Class II exam should make sure they are following the correct path and using the correct references for their exam preparation.

This live virtual plus self-study training product supports exam preparation by helping students review the listed North Carolina Heating Group 3, Class II Contractor reference materials. It does not replace official applications, eligibility requirements, experience documentation, testing rules, licensing approvals, local requirements, renewal responsibilities, or board requirements. Students should complete all required steps connected to the authority or organization requiring the exam.

Students should also understand the relationship between exam preparation and licensing or certification. Passing an exam may be one part of the process, but additional steps may apply depending on the jurisdiction, classification, application requirements, approval process, and current North Carolina instructions.

Reference Books

• North Carolina Administration Code and Policies, 2018 Edition
  An administrative code reference used to study code administration, permits, inspections, approvals, responsibilities, policy language, procedural topics, and administrative provisions.
• North Carolina Residential Code, 2018 Edition
  A residential code reference used to study dwelling provisions, residential system coordination, equipment location awareness, building service topics, definitions, tables, exceptions, and residential code navigation.
• NC Board's Laws & Rules - 2026 Edition
  A laws and rules reference used to study board rule language, contractor responsibilities, regulated activities, compliance expectations, application-related rules, disciplinary language, and rule navigation.
• NASCLA Business, Law, and Project Management 7th Edition
  A business and law reference used to study contractor business operations, contracts, estimating, bidding, project management, financial responsibilities, labor topics, risk, safety, and legal obligations.
• Manual J - Residential Load Calcs, reprinted 2016, Eighth Full Edition
  A residential load calculation reference used to study heat loss, heat gain, design conditions, load calculation inputs, building envelope considerations, room-by-room load concepts, and HVAC sizing awareness.
• Manual D, 2016, 3rd Ed
  A duct design reference used to study duct sizing, airflow, friction rate, duct fittings, distribution system design, pressure considerations, and residential duct layout concepts.
• Modern Refrigeration and Air Conditioning, 22nd edition
  A refrigeration and air conditioning reference used to study refrigeration cycle fundamentals, heating and cooling equipment, system components, controls, service principles, troubleshooting concepts, and HVAC terminology.
• Ductulator
  A duct sizing tool used to support airflow, duct size, velocity, and friction rate practice for residential HVAC duct design questions.

Exam Room Approved Books

• North Carolina Administration Code and Policies, 2018 Edition
  Approved reference for code administration, permits, inspections, approvals, responsibilities, policy language, procedural topics, and administrative provisions.
• North Carolina Residential Code, 2018 Edition
  Approved reference for dwelling-related provisions, residential system coordination, equipment location awareness, definitions, tables, exceptions, and residential code navigation.
• NC Board's Laws & Rules - 2026 Edition
  Approved reference for board law and rule language, contractor responsibilities, regulated activities, compliance expectations, and rule navigation.
• NASCLA Business, Law, and Project Management 7th Edition
  Approved reference for business operations, contracts, estimating, project management, financial responsibilities, labor topics, risk, safety, and legal obligations.
• Manual J - Residential Load Calcs, reprinted 2016, Eighth Full Edition
  Approved reference for residential heat loss, heat gain, load calculation procedures, design conditions, building envelope factors, and HVAC sizing concepts.
• Manual D, 2016, 3rd Ed
  Approved reference for duct design, duct sizing, airflow, friction rate, fitting effects, and residential air distribution concepts.
• Modern Refrigeration and Air Conditioning, 22nd edition
  Approved reference for refrigeration cycle fundamentals, air conditioning systems, HVAC components, controls, service principles, and troubleshooting concepts.
• Ductulator
  Approved duct sizing tool for practicing airflow, velocity, duct size, and friction rate relationships.

Test Information and Study Materials

Students preparing for the North Carolina Heating Group 3, Class II Contractor exam should use the live virtual training, self-study structure, and listed references together. The preparation process should include residential code review, administration code review, laws and rules review, NASCLA business review, Manual J review, Manual D review, refrigeration and air conditioning review, Ductulator practice, calculation review, table navigation, definition review, and repeated reference-navigation practice.

The North Carolina Administration Code and Policies, 2018 Edition should be studied for administrative and procedural topics. Students should review permits, inspections, approvals, code administration, responsibilities, policy language, and procedural requirements. Administrative questions may focus on the process that supports code compliance rather than the technical design of a heating or cooling system.

The North Carolina Residential Code, 2018 Edition should be studied for dwelling-related code provisions and residential system coordination. Students should review residential construction organization, building service topics, mechanical coordination, equipment location awareness, definitions, tables, exceptions, and code navigation. Residential code questions may describe a dwelling condition and require students to locate the correct section before answering.

NC Board's Laws & Rules - 2026 Edition should be studied for board law and rule language. Students should review contractor responsibilities, regulated activities, compliance expectations, application-related rules, disciplinary language, and rule organization. Laws and rules questions often depend on exact wording, so students should practice locating the correct section and reading it carefully.

NASCLA Business, Law, and Project Management 7th Edition should be studied for contractor business topics. Students should review business organization, contracts, estimating, bidding, project management, scheduling, financial management, labor issues, safety, risk management, insurance topics, lien awareness, tax-related concepts, and legal responsibilities. Business questions may require practical contractor judgment and careful reference navigation.

Manual J - Residential Load Calcs, reprinted 2016, Eighth Full Edition should be studied for residential heating and cooling load concepts. Students should review heat loss, heat gain, design conditions, building envelope factors, orientation, infiltration awareness, internal loads, room-by-room load concepts, and equipment sizing awareness. Load calculation questions may require understanding the purpose of the calculation and how input factors affect the final load.

Manual D, 2016, 3rd Ed should be studied for duct design and air distribution topics. Students should review airflow, friction rate, duct sizing, fittings, equivalent length awareness, available static pressure concepts, supply and return duct considerations, and distribution system design. Duct design questions may require students to understand how airflow, duct size, velocity, and friction rate relate to each other.

The Ductulator should be used during study to practice duct sizing relationships. Students should become comfortable using the tool to compare airflow, duct size, velocity, and friction rate. Ductulator practice can help students connect classroom concepts to practical duct design questions.

Modern Refrigeration and Air Conditioning, 22nd edition should be studied for HVAC fundamentals. Students should review refrigeration cycle operation, compressors, condensers, evaporators, metering devices, controls, motors, air conditioning systems, heating systems, service practices, troubleshooting concepts, safety awareness, and system terminology. Technical trade questions may require students to identify components, understand system operation, or connect symptoms to HVAC principles.

Airflow topics should receive steady review. Students should understand how airflow affects comfort, equipment performance, duct design, static pressure, filtration, balancing, supply distribution, return air, and system operation. Airflow questions may require reference navigation, Ductulator practice, or general duct design awareness.

Reference navigation should be part of every study session. Students should practice using tables of contents, indexes where available, chapter headings, section titles, definitions, tables, examples, calculation steps, rule sections, and code sections. Because the North Carolina Heating Group 3, Class II exam uses code, law, business, load calculation, duct design, refrigeration, and sizing tool references, students should become comfortable switching between references quickly and accurately.

Live virtual training helps students follow an organized review path, while self-study gives students time to return to the references, reinforce topics, and practice locating information. Students should use each live training session as a guide for what to review next, then use self-study time to work through the references in more detail.

A strong study routine should include mixed review across all listed references. Students can begin with residential code and administrative topics, then move into board laws and rules, NASCLA business topics, Manual J load calculations, Manual D duct design, Ductulator practice, and Modern Refrigeration and Air Conditioning fundamentals. Mixed review helps students identify whether a question is testing code, business law, board rules, load calculations, duct sizing, refrigeration fundamentals, airflow, tables, definitions, or reference navigation.

Students should also practice reading each question carefully. North Carolina Heating Group 3, Class II Contractor exam questions may include details about residential code, permits, inspections, laws and rules, business operations, load calculations, duct sizing, airflow, equipment components, refrigeration principles, troubleshooting, safety, tables, definitions, calculations, or field workmanship. Careful reading helps students select the correct reference before searching for the answer.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps students prepare for the North Carolina Heating Group 3, Class II Contractor exam through live virtual training, self-study structure, organized study guidance, trade-focused review, reference-based preparation, and confidence-building study support. This product is designed to help students actively review the material, follow a structured preparation path, and become more comfortable with the references connected to the exam.

The live virtual training format helps students stay organized and focused while working through the exam topics. The self-study portion gives students time to review the references, strengthen weaker areas, revisit class topics, practice code navigation, study business law, review board rules, work through Manual J concepts, practice Manual D duct design, use the Ductulator, review refrigeration fundamentals, and build a consistent study routine. Together, the live and self-study structure supports a more complete preparation experience.

For students with residential HVAC experience, duct installation experience, service experience, heating and cooling equipment experience, project management experience, or jobsite support experience, this product helps connect practical knowledge to exam-style preparation. For students newer to the North Carolina Heating Group 3, Class II subject area, the training helps break the study process into smaller, more manageable review areas.

1 Exam Prep supports students through organized study guidance, trade-focused review, practice-oriented preparation, reference navigation, residential code review, administration review, laws and rules review, NASCLA business review, Manual J review, Manual D review, Ductulator practice, refrigeration and air conditioning review, and confidence-building study structure. This product does not guarantee a passing score, licensing approval, employment, state approval, local approval, or any specific exam outcome, but it gives students a more organized way to prepare for the North Carolina Heating Group 3, Class II Contractor exam.

FAQ Section

What is included with the North Carolina Heating Group 3, Class II Contractor Live Virtual + Self Study Training?

This product includes live virtual training and self-study support designed to help students prepare for the North Carolina Heating Group 3, Class II Contractor exam using the listed code, law, business, load calculation, duct design, refrigeration, and Ductulator references.

Where can I view the live class schedule?

The live training schedule is available through the Live Class Schedule.

What references are used for this training?

The references listed for this product are North Carolina Administration Code and Policies, 2018 Edition; North Carolina Residential Code, 2018 Edition; NC Board's Laws & Rules - 2026 Edition; NASCLA Business, Law, and Project Management 7th Edition; Manual J - Residential Load Calcs, reprinted 2016, Eighth Full Edition; Manual D, 2016, 3rd Ed; Modern Refrigeration and Air Conditioning, 22nd edition; and Ductulator.

Is the North Carolina Heating Group 3, Class II exam open book?

The exam is prepared for as an open book test using the listed references. Students should practice using the references while following current exam-day rules for approved materials.

Does this training help with Manual J?

Yes. The training supports review of residential load calculation concepts, heat loss, heat gain, design conditions, building envelope factors, room-by-room load awareness, and HVAC sizing concepts.

Does this training help with Manual D and the Ductulator?

Yes. The training supports review of duct design, airflow, friction rate, duct sizing, fittings, distribution system concepts, and Ductulator practice.

Does this training help with Modern Refrigeration and Air Conditioning?

Yes. The training supports review of refrigeration cycle fundamentals, heating and cooling equipment, system components, controls, service principles, troubleshooting concepts, and HVAC terminology.

Does this training include business and law review?

Yes. The training supports review of NASCLA business, law, and project management topics along with NC Board laws and rules.

Does this product include the reference books?

This listing is for live virtual plus self-study training. Students should review the specific product details for the training materials included with this product.

How should I study for this open book HVAC contractor exam?

Students should review each listed reference, practice locating code sections, laws and rules, business topics, load calculation concepts, duct design topics, refrigeration topics, tables, definitions, and examples, and repeat weak areas until the references feel familiar.

Does this product guarantee that I will pass the exam?

No. This product supports preparation through live virtual training, self-study structure, reference-based review, and organized study guidance, but it does not guarantee a passing score, licensing approval, employment, state approval, local approval, or any specific exam outcome.