The 1 Package: All-Inclusive Connecticut Limited Heating, Hot Water and Steam Contractor (S-5) Exam, Licensing & Business Setup Solution

Prepare for the Connecticut Limited Heating, Hot Water and Steam Contractor (S-5) examination while building the foundation for your contracting business with The 1 Package from 1 Exam Prep. This all-inclusive solution combines highlighted and tabbed examination books, supplemental technical references, online course access, Application Service, business formation assistance, EIN filing, and contractor compliance guidance.

The Connecticut S-5 examination focuses on hot-water and steam heating systems, piping, controls, equipment, insulation, maintenance, testing, and general trade knowledge. Candidates need to understand the operation and installation of heating systems while also knowing how to locate code provisions, technical tables, piping information, equipment guidance, and maintenance procedures in the approved references.

The package includes the International Mechanical Code, 2021 and Modern Refrigeration and Air Conditioning, 22nd Edition for preparation and open-book exam use. It also includes Modern Hydronic Heating for Residential and Light Commercial Buildings, Carrier System Design Manual Part III, and Pipefitter’s Handbook as supplemental technical study resources.

The Contractors Guide to Business, Law and Project Management, Connecticut, 6th Edition is also included to support preparation for the contractor Business and Law examination. Contractor candidates should prepare for both the S-5 trade examination and the applicable business examination as part of the Connecticut licensing process.

Every included book is highlighted and tabbed to provide an organized starting point for study. Important chapters, code provisions, definitions, tables, piping subjects, equipment topics, business concepts, and frequently reviewed material are marked to support faster navigation. Candidates should study with the prepared books regularly so the highlighting and tab locations become familiar before exam day.

The package price is $2,610. A $500 refundable book deposit is added, making the total due $3,110. The deposit is refundable when the books are returned within one year in similar condition.

Total: $3,110 — All-Inclusive, with no hidden fees.

Please allow up to 15 business days for The 1 Package book orders.

Exam Details

The Connecticut Limited Heating, Hot Water and Steam Contractor (S-5) 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-5 examination content outline includes the following subjects:

• 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 significant preparation time to piping materials, fittings, joining methods, valves, supports, insulation, system arrangements, flow, pressure, expansion, circulation, and the movement of hot water or steam through heating systems.

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

The controls section may involve thermostats, aquastats, pressure controls, relays, limit controls, operating controls, safety controls, valves, and equipment sequences. Candidates should understand the purpose of common control devices and how they help regulate or protect a heating system.

Maintenance and testing questions may cover inspection, system startup, pressure testing, temperature measurements, equipment checks, preventive maintenance, troubleshooting, and the identification of unsafe or inefficient operating conditions.

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, choosing the appropriate reference, locating the supporting information, and selecting an answer.

The examination may also include questions based on accepted trade knowledge and general industry practices. Candidates should combine book study with practical understanding of heating-system operation, piping, controls, equipment, maintenance, and testing.

Open Book Test

The Connecticut S-5 Limited Heating, Hot Water and Steam Contractor examination is an open-book test. Candidates may bring the approved references into the examination center under the current testing rules.

The International Mechanical Code and Modern Refrigeration and Air Conditioning are the approved trade references included for exam-room use. The other technical books in this package are supplemental study resources intended to strengthen understanding before the examination.

Approved references may be highlighted, underlined, annotated, and indexed before the examination session. Permanent tabs are permitted. Temporary tabs, removable notes, loose papers, and additional inserted pages are not allowed.

Candidates may not write in the books during the examination. Questions and answers may not be written inside the references, and unauthorized material may not be attached to or inserted into the approved books.

All books included in The 1 Package arrive highlighted and tabbed. Candidates should review the markings, understand the tab labels, and practice locating the associated material before exam day. Prepared books provide the greatest benefit when they are used throughout the study process.

A practical open-book strategy starts by identifying the type of question. Code-based questions involving equipment installation, boilers, piping, insulation, mechanical requirements, or system safety may lead to the International Mechanical Code. Technical questions involving equipment, controls, heating principles, operation, maintenance, and troubleshooting may be supported by Modern Refrigeration and Air Conditioning.

Candidates should use the table of contents, index, permanent tabs, chapter headings, diagrams, and technical tables instead of searching page by page. Reading the complete section is important because definitions, exceptions, notes, and surrounding provisions may affect the correct answer.

Licensing Steps

1. Review the S-5 classification. Confirm that the Connecticut Limited Heating, Hot Water and Steam Contractor credential matches the work and business services you intend to provide.
2. Meet the qualifying experience requirement. Establish the applicable properly licensed journeyperson experience or equivalent experience and training accepted by Connecticut.
3. Gather qualification documents. Prepare license history, employment verification, apprenticeship records, classroom documentation, and other records relevant to the application.
4. Use the included Application Service. Receive assistance organizing the applicable Connecticut S-5 contractor application and required supporting information.
5. Submit the application. Provide the completed application and supporting materials to the Connecticut Department of Consumer Protection.
6. Receive examination eligibility. The state reviews the submitted qualifications and determines whether the applicant may proceed to testing.
7. Prepare for the trade examination. Use the highlighted and tabbed references with the included online course to review piping, equipment, controls, insulation, maintenance, and testing.
8. Prepare for Business and Law. Study the included Connecticut contractor business book for the applicable Business and Law examination.
9. Schedule the required examinations. Follow the testing provider’s registration instructions after eligibility is granted.
10. Complete the licensing examinations. Pass the required trade and business examination portions.
11. Complete license issuance requirements. Follow Connecticut’s instructions for remaining documents, fees, and license issuance.
12. Establish the business entity. Use the included formation assistance to organize an LLC or corporation for the contracting business.
13. Obtain the EIN. Complete the included EIN filing process for banking, tax administration, employee hiring, and professional business operations.
14. Review contractor compliance considerations. Use the included guidance to organize the business for ongoing Connecticut contractor responsibilities.

Passing the examinations does not automatically issue the license. Applicants must satisfy Connecticut’s experience, application, examination, documentation, and license-issuance requirements.

State Requirements

The S-5 license is a limited contractor credential for hot-water and steam heating work within the scope established by Connecticut. The classification focuses on heating systems, associated equipment, piping, controls, maintenance, and testing.

The S-5 classification does not provide unlimited heating, piping, cooling, fuel gas, oil burner, refrigeration, or air-conditioning authority. Contractors must remain within the work authorized by the credential and obtain any additional Connecticut license required for services outside that scope.

Applicants for a contractor license must establish the applicable qualifying trade experience. Connecticut reviews the applicant’s license history, employment, education, training, and supporting documentation before determining examination eligibility.

Applicants relying on equivalent experience or education may need to provide detailed records showing supervised work and classroom instruction. The Connecticut Department of Consumer Protection determines whether submitted qualifications satisfy the applicable requirements.

Contractor candidates must prepare for the S-5 trade examination and the applicable contractor Business and Law examination. The included business reference supports preparation for business organization, contracts, project management, financial administration, employment responsibilities, safety, and other contractor subjects.

Formation of an LLC or corporation does not replace the occupational contractor license. The business entity and the licensed individual must each satisfy the requirements that apply to their respective roles.

Reference Books

• Included Rental Book: International Mechanical Code, 2021
  This approved exam-room code covers mechanical systems, boilers, equipment installation, hydronic and steam-related requirements, piping, insulation, controls, testing, and system safety. The included copy is highlighted and tabbed.
• Included Rental Book: Modern Refrigeration and Air Conditioning, 22nd Edition
  This approved technical reference supports study of heating principles, equipment, controls, piping concepts, system operation, inspection, maintenance, testing, and troubleshooting. The included copy is highlighted and tabbed.
• Included Rental Book: Modern Hydronic Heating for Residential and Light Commercial Buildings, John Siegenthaler, P.E., 2022
  This supplemental study book covers modern hydronic system design, boilers, heat sources, circulators, distribution systems, radiant heating, piping arrangements, controls, hydraulic separation, and system performance. The included copy is highlighted and tabbed.
• Included Rental Book: Carrier System Design Manual Part III
  This supplemental manual supports study of piping design, system layouts, flow, pressure relationships, equipment connections, and practical design considerations. The included copy is highlighted and tabbed.
• Included Rental Book: Pipefitter’s Handbook
  This supplemental technical handbook provides practical piping information, measurements, calculations, fittings, layouts, fabrication guidance, and reference data useful for piping-focused preparation. The included copy is highlighted and tabbed.
• Included Business Book: Contractors Guide to Business, Law and Project Management, Connecticut, 6th Edition
  This reference supports preparation for the contractor Business and Law examination, including business organization, contracts, project management, financial administration, employment responsibilities, risk management, safety, and Connecticut contractor practices. The included copy is highlighted and tabbed.

Exam Room Approved Books

The following trade references are included for use during the Connecticut S-5 examination:

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

Modern Hydronic Heating, Carrier System Design Manual Part III, and Pipefitter’s Handbook are supplemental study resources and are not included on the S-5 trade examination’s approved exam-room reference list.

The Contractors Guide to Business, Law and Project Management, Connecticut, 6th Edition supports the separate contractor Business and Law examination and should be used according to the rules for that examination.

Test Information and Study Materials

A productive S-5 study plan should begin with piping because this category accounts for 17 of the 40 trade questions. Review materials, fittings, joining methods, valves, supports, expansion, circulation, insulation, piping arrangements, and system flow.

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

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

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

Use Modern Refrigeration and Air Conditioning to reinforce heating principles, equipment functions, controls, operation, service, and troubleshooting. Use the supplemental books to deepen understanding of hydronic design, piping calculations, layouts, steam systems, and practical pipefitting information.

Timed practice should include selecting the appropriate reference before beginning a search. Use the tabs, index, table of contents, and chapter headings to locate information, then read the entire supporting provision before choosing an answer.

For the Business and Law examination, review business structure, contracts, project administration, accounting concepts, employment responsibilities, insurance, safety, and contractor management. Practice locating information in the included Connecticut business book rather than relying only on memorization.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Connecticut S-5 contractor candidates combine examination preparation, application support, business setup, and organized reference materials in one package. The included books are highlighted and tabbed to support structured study and more efficient navigation.

Trade-focused preparation helps candidates review piping, equipment, controls, insulation, maintenance, testing, hydronic systems, hot-water heating, and steam-heating concepts. Practice-oriented study can reveal weaker areas and provide direction for additional review.

Reference-navigation guidance helps candidates learn which book applies to a question and how to locate the supporting material. Familiarity with indexes, chapter structures, definitions, tables, and permanent tabs can support better time management during an open-book examination.

One year of course access gives candidates a structured period for reviewing trade and business subjects. The included Application Service helps organize the licensing submission, while business formation and EIN filing services support the transition from exam candidate to business owner.

Contractor compliance guidance helps customers understand important organizational responsibilities associated with operating a Connecticut contracting business. This support is intended to help create a more organized business foundation without promising licensing approval or commercial results.

No preparation or business service can guarantee examination eligibility, a passing score, license issuance, revenue, or business success. Applicants remain responsible for meeting Connecticut requirements, providing accurate information, completing the examinations, and maintaining ongoing compliance.

FAQ Section

What is included in The 1 Package?

The package includes highlighted and tabbed trade books, supplemental technical books, the Connecticut Business and Law book, one year of course access, Application Service, business formation assistance, EIN filing, and contractor compliance guidance.

What is the total cost?

The package cost is $2,610, plus a $500 refundable book deposit. The total due is $3,110, with no hidden fees.

How does the refundable deposit work?

The $500 deposit is refundable when the books are returned within one year in similar condition.

Are all included books highlighted and tabbed?

Yes. All books included with The 1 Package are highlighted and tabbed.

How long should I allow for my order?

Please allow up to 15 business days for The 1 Package book orders.

How long is the course available?

The package includes 1 year of course access.

Is Application Service included?

Yes. Application Service is included to support organization of the applicable Connecticut S-5 contractor license application.

Is business formation included?

Yes. The package includes assistance forming an LLC or corporation for the Connecticut contracting business.

Is EIN filing included?

Yes. EIN filing assistance is included to support business banking, tax administration, employee hiring, and professional operations.

Is the Connecticut S-5 trade examination open book?

Yes. The S-5 examination is open book, and candidates may bring the approved trade references into the examination center under the applicable testing rules.

How many questions are on the S-5 examination?

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

Which books are allowed into the S-5 trade examination?

The International Mechanical Code and Modern Refrigeration and Air Conditioning are the approved trade exam-room references included in this package.

Does the package include Business and Law preparation?

Yes. The Contractors Guide to Business, Law and Project Management, Connecticut, 6th Edition is included for contractor Business and Law preparation.

Does purchasing The 1 Package guarantee a license?

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