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Earlier editions: 20222019

Chapter 5 — EXHAUST SYSTEMS

510.10 Solid-Fuel Duct Systems — 2025 California Mechanical Code

California Mechanical Code (Title 24, Part 4) · 2025 edition · updated 2026-09-25 · California

CBSC: official editions, supplements and errata

Italicized text is a California amendment to the model code, as printed in the official publication.

Cite as: 2025 California Mechanical Code (Title 24, Part 4) § 510.10 · Effective January 1, 2026 · Official source: Building Standards Commission

Where solid-fuel cooking equipment is to be vented, the duct system shall be in accordance with Section 517.0.

For SI units: 1 inch = 25.4 mm, 1 foot = 304.8 mm

Notes:

  1. Fresh air intake (FAI) applies to an air intake, including an operable door or window.

  2. Example: (a) FAIs 1 and 5 are on the same plane of exhaust or lower: 10 feet (3048 mm) min. between closest edges. (b) FAIs 2, 3, and 4 are above plane of exhaust fan: 10 feet + 0.25 feet (3048 mm + 76 mm) per degree between closest edges.

FIGURE 510.9.2

EXHAUST TERMINATION DISTANCE FROM FRESH AIR INTAKE (FAI) OR OPERABLE DOOR OR WINDOW

[NFPA 96: FIGURE 7.8.3]

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▸Contents — California Mechanical Code (Title 24, Part 4)
California Mechanical Code (Title 24, Part 4)

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