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Fuel-oil heater relief valve.

Municipal Code of Chicago § 18-28-1307.4
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18-28-1307.4 Fuel-oil heater relief valve. A relief valve shall be installed on the discharge line of fuel-oil-heating appliances.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2689242Fetched: 10/24/2026

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18-28-1307.4 | Corpus