IMC Chapter 10 — Boilers, Water Heaters, Pressure Vessels

Updated Mar 26, 2026

Boiler rooms, clearances, T&P relief valves, expansion tanks, combustion air requirements.

IMC Ch10: T&P valve to 6in of floor (no threads, no reduction, max 30ft, no traps). Expansion tank on closed systems. Combustion air: 50 cu.in./1000 BTU from outdoors (confined space). Seismic bracing per ASCE 7. CO detection per code.

TAGS

IMC boiler water-heater T&P-valve combustion-air

DETAILS

code year

2024

code system

IMC

code section

Chapter 10

SOURCES

🔗https://codes.iccsafe.org/content/IMC2021P1

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