Municipal Code of Chicago § 18-28-706.2.3
Municipal Code of Chicago § 18-28-706.2.3
in effect18-28-706.2.3
Where combustion air is provided by the building's mechanical ventilation system, the system shall provide the specified combustion air rate in addition to the required ventilation air.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2687732Fetched: 10/24/2026
