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Form a Business

Positive flow.

Municipal Code of Chicago § 18-28-801.4
in effect
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18-28-801.4 Positive flow. Venting systems shall be designed and constructed so as to develop a positive flow adequate to convey all combustion products to the outside atmosphere.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2687771Fetched: 10/24/2026

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18-28-801.4 | Corpus