IMC 2021 International Mechanical Code -1st Edition
The 2021 International Mechanical Code is a valuable reference for professionals involved in designing, installing, reviewing, maintaining, or inspecting mechanical systems. Published by the International Code Council, it establishes minimum requirements through coordinated prescriptive and performance-related provisions.
The book covers mechanical equipment and appliance installation, ventilation, commercial and hazardous exhaust, clothes-dryer exhaust, duct construction, combustion air, chimneys, vents, fireplaces, boilers, water heaters, pressure vessels, refrigeration systems, hydronic piping, fuel-oil systems, and solar thermal installations. It also includes referenced standards and appendices addressing chimney-connector pass-throughs, permit-fee schedules, and appeals.
The 2021 edition includes several practical revisions. These address dryer-exhaust terminal clearances, access to fire and smoke dampers, refrigerant tables, condensate termination markings, balanced whole-house ventilation, manicure and pedicure station exhaust, and grease-duct cleanout locations. These updates make the edition particularly relevant to projects, courses, inspections, and examinations based on the 2021 code cycle.
This code book is suitable for HVAC contractors, mechanical engineers, architects, building inspectors, plans examiners, code officials, facility managers, instructors, apprentices, and construction students. It can support equipment selection, system design, permit preparation, plan review, installation, inspection, maintenance planning, and technical study.
The chapter-based organization allows readers to move directly to the system being researched. Separate chapters for ventilation, exhaust, ducts, refrigeration, hydronic piping, and other subjects make the book useful in offices, classrooms, building departments, workshops, and on jobsites.
Code adoption and local amendments vary by jurisdiction. Buyers should confirm that the 2021 edition applies to their location, project, employer, course, or examination.
Order a single copy for professional or educational use, or request bulk pricing for contracting companies, engineering firms, government departments, colleges, training centers, libraries, and resellers.
Key Features
- Complete 2021 International Mechanical Code
- Published by the International Code Council
- Covers equipment and appliance installation
- Includes natural and mechanical ventilation requirements
- Addresses commercial and hazardous exhaust systems
- Covers duct construction, insulation, and installation
- Includes combustion-air and venting provisions
- Addresses boilers, water heaters, and pressure vessels
- Covers refrigeration and hydronic piping systems
- Includes fuel-oil and solar thermal requirements
- Suitable for professionals, officials, and students
- Available for single-copy purchase and bulk orders
Frequently Asked Questions
1. What is the 2021 International Mechanical Code?
The 2021 IMC is a model code that establishes minimum requirements for mechanical systems using prescriptive and performance-related provisions.
2. What subjects are covered in this book?
The book covers mechanical equipment, ventilation, exhaust systems, ducts, combustion air, chimneys, vents, boilers, refrigeration, hydronic piping, fuel-oil systems, and solar thermal installations.
3. What is the ISBN of the softcover edition?
The ISBN-13 is 9781609839642, and the corresponding ISBN-10 is 1609839641. The official ICC front matter identifies the supplied ISBN as the softcover edition.
4. Is this the paperback version?
Yes. ISBN 9781609839642 identifies the softcover or paperback edition. ICC lists the loose-leaf version separately under ISBN 9781609839659.
5. How many pages does the book contain?
ICC lists the 2021 International Mechanical Code at 186 pages.
6. Does the IMC cover refrigeration systems?
Yes. Chapter 11 addresses refrigeration-system classification, machinery rooms, piping materials, connections, installation, testing, and related requirements.
7. Can this book be used for an ICC or licensing examination?
It may be suitable when an examination specifically lists the 2021 IMC. Candidates should confirm the required edition, binding, permitted tabs, and note-taking rules with the examination provider.
8. Is bulk ordering available?
Yes. Customers may purchase one copy or request bulk pricing for HVAC companies, engineering firms, contractors, government departments, colleges, training centers, libraries, and resellers.



















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