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Clearance to combustibles.

Municipal Code of Chicago § 18-28-510.8.2
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18-28-510.8.2 Clearance to combustibles. Ducts shall have a clearance to combustibles in accordance with Table 18-28-510.8.2. Exhaust gases having temperatures in excess of 600°F (316°C) shall be exhausted to a chimney in accordance with Section 18-28-511.2. Table 18-28-510.8.2 Clearance to Combustibles Type of Exhaust or Temperature of Exhaust (°F) | Clearance to Combustibles (Inches) Less than 100 | 1 100 – 600 | 12 Flammable vapors | 6 For SI: 1 inch = 25.4 MM; °C = [(°F) - 32]/1.8. (Amend Coun. J. 11-8-12, p. 38872, § 320)
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2687481Fetched: 10/24/2026

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18-28-510.8.2 | Corpus