Connecticut Limited Heating, Hot Water and Steam Journeyperson (S-6) Highlighted & Tabbed Book Package

Prepare for the Connecticut Limited Heating, Hot Water and Steam Journeyperson (S-6) examination with a complete collection of trade references and supplemental technical books that arrive highlighted and permanently tabbed. This package is designed for heating professionals who want an organized study system for reviewing hot-water systems, steam systems, piping, heating equipment, controls, insulation, maintenance, testing, and general trade knowledge.

The Connecticut S-6 examination evaluates knowledge associated with limited hot-water and steam heating work. Candidates should understand how heating systems operate, how piping arrangements affect performance, how controls regulate equipment, and how system components work together. They must also be prepared to locate code requirements, technical explanations, diagrams, definitions, tables, and equipment information within a timed examination.

This package includes the International Mechanical Code, 2021 and Modern Refrigeration and Air Conditioning, 22nd Edition. These references support open-book preparation for the S-6 trade examination and cover mechanical requirements, boilers, heating equipment, piping, controls, installation, operation, testing, maintenance, and troubleshooting.

The package also includes Modern Hydronic Heating for Residential and Light Commercial Buildings by John Siegenthaler, P.E.; Carrier System Design Manual Part III; and Pipefitter’s Handbook. These supplemental technical resources expand the candidate’s understanding of hydronic distribution, circulators, boilers, piping layouts, flow, pressure, system design, equipment connections, fittings, measurements, calculations, and practical pipefitting principles.

Every book included in this package is highlighted and permanently tabbed. Important chapters, definitions, mechanical provisions, equipment topics, piping subjects, technical tables, system-design concepts, and commonly reviewed material are marked to provide an organized starting point for preparation.

Highlighted and tabbed books can make major topics easier to locate, but they do not replace studying. Candidates should review every tab, read the highlighted material, learn how each reference is organized, and practice locating information under timed conditions. The strongest preparation combines trade experience, technical study, and repeated reference navigation.

The S-6 examination is open book, making familiarity with the approved references an important part of preparation. Candidates who begin using the books early can develop a repeatable process for identifying the subject, selecting the appropriate reference, finding the relevant chapter, and reading the complete supporting material before choosing an answer.

This product is a highlighted and tabbed book package. It does not include online course access, rental services, Application Service, a refundable deposit, or independent contracting authority.

Please allow up to 15 business days for tabbed and highlighted book package orders.

What You Get

The package combines the principal S-6 exam-room references with supplemental technical books that support a deeper understanding of piping, hydronic heating, system design, and practical pipefitting. Candidates can use the approved references for open-book preparation and the supplemental materials to reinforce difficult concepts before test day.

Exam Details

The Connecticut Limited Heating, Hot Water and Steam Journeyperson (S-6) examination contains 40 questions. Candidates are allowed 1½ hours to complete the examination, and a minimum score of 70 percent is required to pass.

The published S-6 examination content outline includes the following subject areas:

• Insulation: 1 question
• General Knowledge: 4 questions
• Controls: 5 questions
• Equipment: 8 questions
• Piping: 17 questions
• Maintenance and Testing: 5 questions

Piping is the largest examination category, accounting for 17 of the 40 questions. Candidates should devote substantial preparation time to piping materials, fittings, joining methods, valves, supports, insulation, expansion, circulation, pressure, flow, system layouts, and the movement of hot water, steam, and condensate through heating systems.

Equipment is the second-largest category. Candidates should understand boilers, pumps, circulators, expansion tanks, air-control devices, heat exchangers, terminal units, control valves, safety devices, and other components used in hot-water and steam heating installations.

The controls category may involve thermostats, aquastats, pressure controls, relays, operating limits, safety controls, valves, and equipment operating sequences. Candidates should understand how these devices start, stop, regulate, and protect heating equipment.

Maintenance and testing questions may address system startup, equipment inspection, pressure testing, temperature measurements, preventive maintenance, troubleshooting, and recognition of unsafe or inefficient operating conditions.

General knowledge questions may involve accepted heating practices, equipment relationships, piping principles, system operation, and journeyperson-level trade understanding. Insulation questions may address heat loss, material application, system efficiency, and protection of piping or equipment.

With 90 minutes available for 40 questions, candidates have an average of approximately two minutes and fifteen seconds per question. That time includes reading the question, identifying the subject, selecting the most likely reference, locating the supporting information, and choosing an answer.

Open Book Test

The Connecticut S-6 Limited Heating, Hot Water and Steam Journeyperson examination is an open-book test. Candidates may bring approved references into the examination center under the applicable testing rules.

The International Mechanical Code, 2021 and Modern Refrigeration and Air Conditioning, 22nd Edition are the approved S-6 trade references included in this package for exam-room use.

Modern Hydronic Heating for Residential and Light Commercial Buildings, Carrier System Design Manual Part III, and Pipefitter’s Handbook are supplemental study resources. These books can strengthen technical understanding during preparation but are not listed as approved references for use inside the S-6 examination room.

Approved references may be highlighted, underlined, annotated, and indexed before the examination. Permanent tabs may be used to identify chapters, definitions, technical tables, piping subjects, equipment topics, controls, testing information, and other frequently reviewed material.

Temporary tabs, removable notes, loose papers, and inserted pages are not permitted. Candidates may not write in the references during the examination, and questions or answers may not be recorded inside the approved books.

The approved books in this package arrive highlighted and permanently tabbed. Candidates should review every marked section before exam day and learn what each tab represents. A prepared reference provides the greatest value when the candidate already understands the subject and knows how the marked material relates to the question.

A practical open-book strategy begins by identifying the type of question. A code-based question involving boilers, mechanical equipment, piping, insulation, installation requirements, testing, or system safety may lead to the International Mechanical Code.

A technical question involving heating principles, equipment operation, system components, controls, maintenance, testing, or troubleshooting may be supported by Modern Refrigeration and Air Conditioning.

Candidates should use the permanent tabs together with each book’s table of contents, index, chapter headings, diagrams, and technical tables. Not every examination topic can be represented by a single tab, making familiarity with index terminology important.

Reading the complete supporting section is essential. Definitions, exceptions, notes, table headings, and surrounding paragraphs may affect the correct response. Candidates should avoid choosing an answer based only on an isolated highlighted sentence.

Licensing Steps

1. Review the S-6 license scope. Confirm that the Connecticut Limited Heating, Hot Water and Steam Journeyperson classification matches the work you intend to perform.
2. Complete the applicable training pathway. Satisfy Connecticut’s registered apprenticeship or accepted equivalent experience and training requirements.
3. Gather qualification documents. Prepare apprenticeship records, classroom documentation, employment verification, and other materials required for the application pathway.
4. Complete the journeyperson application. Submit the applicable application and supporting information to the Connecticut Department of Consumer Protection.
5. Receive examination eligibility. The state reviews the applicant’s qualifications and determines whether the candidate may proceed to testing.
6. Prepare for the S-6 examination. Review the examination outline, study the highlighted and tabbed references, and practice locating information under timed conditions.
7. Schedule the examination. Follow the testing provider’s registration and scheduling procedures after eligibility is granted.
8. Take the S-6 examination. Complete the 40-question trade examination within the 1½-hour testing period.
9. Complete license issuance requirements. Submit any remaining documents, examination results, or licensing fees according to Connecticut’s instructions.

Passing the examination does not automatically issue the S-6 license. Applicants must complete Connecticut’s training, application, examination, documentation, and license-issuance requirements.

State Requirements

The Connecticut S-6 credential is a limited journeyperson license associated with qualifying hot-water and steam heating work. The classification focuses on heating equipment, related piping, controls, insulation, maintenance, testing, and system operation within the limitations established for the credential.

The S-6 license is a journeyperson credential and does not provide independent contracting authority. The license holder must perform authorized work while employed by a contractor licensed for the applicable heating work.

Applicants must complete a registered apprenticeship program or demonstrate equivalent experience and training accepted by the Connecticut Department of Consumer Protection. Supporting documentation may be required to establish classroom instruction, supervised on-the-job training, apprenticeship completion, or equivalent qualifications.

Applicants with education or trade experience obtained outside Connecticut should follow the applicable state procedures for equivalent experience, training, or an equivalent out-of-state credential. Connecticut determines whether the submitted qualifications satisfy its licensing requirements.

The S-6 classification is limited in scope. It does not provide unlimited authority to perform every type of heating, cooling, refrigeration, fuel gas, oil burner, piping, or air-conditioning work. License holders must remain within the services authorized by the credential.

Holding an S-6 license does not replace other occupational credentials that may be required for work outside the approved scope. Journeypersons should perform authorized services only while employed by an appropriately licensed contractor.

Candidates should review the official classification before applying. Connecticut offers multiple heating, cooling, piping, fuel, refrigeration, and sheet metal credentials, and the selected license should match the work the candidate intends to perform.

Reference Books

• International Mechanical Code, 2021
  This approved exam-room code covers mechanical systems, boilers, equipment installation, piping, insulation, controls, testing, and related safety requirements. The included copy is highlighted and tabbed to support organized code review and efficient navigation.
• Modern Refrigeration and Air Conditioning, 22nd Edition
  This approved technical reference supports preparation involving heating principles, equipment, controls, system operation, inspection, maintenance, testing, and troubleshooting. The included copy is highlighted and tabbed.
• Modern Hydronic Heating for Residential and Light Commercial Buildings, John Siegenthaler, P.E., 2022
  This supplemental reference covers boilers, heat sources, circulators, hydronic distribution, radiant heating, piping arrangements, controls, hydraulic separation, and modern heating-system performance. The included copy is highlighted and tabbed.
• Carrier System Design Manual Part III
  This supplemental manual supports study involving piping design, system layouts, flow, pressure relationships, equipment connections, and practical heating-system design considerations. The included copy is highlighted and tabbed.
• Pipefitter’s Handbook
  This practical handbook provides piping information, fitting data, measurements, calculations, layout guidance, and technical reference material useful for the piping-heavy S-6 examination. The included copy is highlighted and tabbed.

Exam Room Approved Books

The following highlighted and tabbed references from this package are approved for use during the Connecticut S-6 trade examination:

• International Mechanical Code, 2021
  Use this code for questions involving boilers, mechanical equipment, piping, insulation, installation requirements, controls, testing, and system safety.
• Modern Refrigeration and Air Conditioning, 22nd Edition
  Use this reference for technical questions involving heating principles, equipment, controls, system components, operation, maintenance, testing, and troubleshooting.

Modern Hydronic Heating for Residential and Light Commercial Buildings, Carrier System Design Manual Part III, and Pipefitter’s Handbook are supplemental study resources and are not listed as approved references for use inside the S-6 examination room.

Candidates are responsible for bringing their approved references to the testing center. The examination location does not provide each candidate with a personal set of books.

The approved references arrive highlighted and permanently tabbed. Candidates should use them throughout preparation so the markings, chapter layouts, and tab locations become familiar before the examination.

Test Information and Study Materials

A productive S-6 study plan should begin with piping because this category accounts for 17 of the 40 examination questions. Review piping materials, fittings, joining methods, supports, valves, insulation, expansion, circulation, flow, pressure, and system layouts.

Candidates should understand the differences between hot-water and steam systems. Study how heated water, steam, and condensate move through their respective systems, how circulation occurs, and how piping arrangements affect system operation.

Equipment accounts for eight questions. Review boilers, pumps, circulators, expansion tanks, air separators, heat exchangers, terminal units, control valves, and other components used in hot-water and steam heating systems.

Controls and maintenance each account for five questions. Candidates should understand thermostats, aquastats, pressure controls, relays, operating limits, safety devices, valves, equipment sequences, inspection procedures, testing, preventive maintenance, and troubleshooting.

Use the International Mechanical Code to review formal mechanical requirements. Pay attention to definitions, tables, exceptions, equipment provisions, piping requirements, installation rules, and testing procedures.

Use Modern Refrigeration and Air Conditioning to reinforce heating principles, equipment functions, controls, operation, maintenance, and troubleshooting. Review diagrams, component relationships, and operating sequences rather than relying only on isolated definitions.

Use Modern Hydronic Heating for deeper review of boilers, circulators, heat sources, piping arrangements, radiant heating, distribution systems, hydraulic separation, and modern controls.

Carrier System Design Manual Part III and Pipefitter’s Handbook can reinforce flow, pressure, equipment connections, piping layouts, fitting data, measurements, and calculations. These resources are especially useful for strengthening preparation for the piping-heavy portion of the examination.

During timed practice, identify the likely reference before opening a book. Use the permanent tabs to reach a major subject, then use the index, table of contents, chapter headings, and diagrams to locate the precise information.

Review missed practice questions carefully. Find the applicable code provision or technical explanation, determine why the original answer was incorrect, and study related concepts that may appear in a differently worded examination question.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Connecticut S-6 candidates begin their preparation with an organized collection of highlighted and tabbed examination references and supplemental technical books. The package brings together materials connected to piping, boilers, heating equipment, controls, hydronic systems, maintenance, testing, and practical pipefitting.

Trade-focused review helps candidates connect each examination category with the appropriate reference. The International Mechanical Code supports code-based mechanical requirements, while Modern Refrigeration and Air Conditioning reinforces heating principles, equipment, controls, operation, maintenance, and troubleshooting.

The supplemental books provide additional depth for hydronic and piping preparation. Candidates can review circulation, flow, pressure, piping arrangements, system layouts, equipment connections, fitting data, and modern heating applications.

The included highlighting helps draw attention to useful material, while permanent tabs provide an organized navigation system for major subjects. Candidates should combine these features with repeated study and timed reference practice.

Practice-oriented preparation also helps identify weaker areas before exam day. Additional review can be directed toward piping, equipment, controls, insulation, maintenance, testing, hot-water systems, or steam-system principles.

No highlighted and tabbed book package can guarantee examination eligibility, a passing result, application approval, or license issuance. Consistent study, qualifying training, familiarity with the approved references, and effective time management remain important parts of the Connecticut S-6 licensing process.

FAQ Section

What books are included in this package?

The package includes the International Mechanical Code, 2021; Modern Refrigeration and Air Conditioning, 22nd Edition; Modern Hydronic Heating for Residential and Light Commercial Buildings; Carrier System Design Manual Part III; and Pipefitter’s Handbook.

Are all included books highlighted and tabbed?

Yes. Every book included in this package is highlighted and permanently tabbed before delivery.

How long should I allow for the order?

Please allow up to 15 business days for tabbed and highlighted book package orders.

Is the Connecticut S-6 examination open book?

Yes. Candidates may bring approved references into the examination center under the applicable testing rules.

How many questions are on the S-6 examination?

The examination contains 40 questions. Candidates have 1½ hours to complete the test and must earn a minimum score of 70 percent.

What is the largest examination category?

Piping is the largest category, accounting for 17 of the 40 questions. Equipment is the second-largest category with eight questions.

Are all five books allowed into the examination?

No. The International Mechanical Code and Modern Refrigeration and Air Conditioning are the approved exam-room references. The other three books are supplemental study resources.

Does this package include online course access?

No. This product is a highlighted and tabbed book package and does not include an online course.

Is this a rental package?

No. This product is not identified as a rental package and does not include a refundable book deposit.

Does the S-6 license allow independent contracting?

No. The S-6 credential is a journeyperson license. The holder must perform authorized work while employed by an appropriately licensed contractor.

Does purchasing this package guarantee a license?

No. Applicants must meet Connecticut’s qualification requirements, receive examination eligibility, pass the examination, complete the application process, and receive state approval.