Joliet, IL Outdoor Cooking: BBQ & Propane Rules (2026)

An outdoor grill in Joliet is governed by a layered framework. First, the Illinois Fire Code (adopted by the Office of the State Fire Marshal under 41 Ill. Adm. Code 100, incorporating NFPA 1 Fire Code by reference) applies statewide as the minimum standard. Second, Joliet's Chapter 12 (Fire Department) adopts and amends the fire code locally, with enforcement by the Joliet Fire Prevention Bureau. Third, NFPA 1 Section 10.11 (paralleling IFC Section 308.1.4) is the controlling open-flame rule. The black-letter rule: charcoal burners and other open-flame cooking devices shall not be operated on combustible balconies or within 10 feet (3,048 mm) of combustible construction. Three exceptions: (1) one- and two-family dwellings are not subject to the 10-foot restriction; (2) buildings, balconies, and decks protected by an automatic sprinkler system are exempt; (3) LP-gas cooking devices with an LP-gas container of 2.5-pound water capacity (the nominal 1-pound disposable cylinder) or less are exempt. Standard 20-pound propane BBQ cylinders therefore are not permitted on combustible balconies of non-sprinklered multifamily buildings within 10 feet of the building. Joliet's Inspectional Services and Fire Prevention Bureau enforce these rules during life-safety inspections of apartments and condominiums. Single-family homeowners face no such balcony restriction, though setbacks from combustible structures are recommended. Burn bans during drought conditions may further restrict outdoor cooking; Joliet Fire Department or Will County emergency management announces such bans.