2018 International Mechanical Code (IMC)

The 2018 International Mechanical Code (IMC) establishes minimum regulations for mechanical systems using prescriptive and performance-related provisions.

The IMC was developed with broad-based principles that make possible the use of new materials, methods and design.

Important changes include:

• Added coverage of pollution control units.
• A new exception was added to recognize Type I kitchen hoods listed for clearances to combustibles of less than 18 inches.
• Added coverage for a newer type of non-metallic duct, phenolic duct.
• New coverage for high volume large diameter fans (HVLD), also referred to as high volume low speed (HVLS) fans.
• Relaxed requirements for sealing of duct joints and seams for Snap- and Button-lock duct joints located within the thermal envelope.

Contents:

1. Scope and Administration
2. Administration and Enforcement
3. Definitions
4. Ventilation
5. Exhaust Systems
6. Duct Systems
7. Combustion Air
8. Chimneys and Vents
9. Specific Appliances, Fireplaces and Solid Fuel-Burning Equipment
10. Boilers, Water Heaters and Pressure Vessels
11. Refrigeration
12. Hydronic Piping
13. Fuel Oil Piping and Storage
14. Solar Thermal Systems
15. Referenced Standards
16. Appendix A: Chimney Connector Pass Throughs
17. Appendix B: Recommended Permit Fee Schedule

Related:

>> 2018 International Codes & Related 2018 International Building Code (IBC) 2018 International Fire Code (IFC) 2018 International Fuel Gas Code (IFGC) 2018 International Mechanical Code (IMC) 2018 International Plumbing Code (IPC) 2018 International Residential Code (IRC)

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