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Chicago Overview
Municipal Code of Chicago
MUNICIPAL CODE OF CHICAGO
TITLE 1 GENERAL PROVISIONS
TITLE 2 CITY GOVERNMENT AND ADMINISTRATION
TITLE 3 REVENUE AND FINANCE
TITLE 4 BUSINESSES, OCCUPATIONS AND CONSUMER PROTECTION
TITLE 5 HOUSING AND ECONOMIC DEVELOPMENT
TITLE 6 HUMAN RIGHTS*
TITLE 7 HEALTH AND SAFETY
TITLE 8 OFFENSES AFFECTING PUBLIC PEACE, MORALS AND WELFARE
TITLE 9 VEHICLES, TRAFFIC AND RAIL TRANSPORTATION
TITLE 10 STREETS, PUBLIC WAYS, PARKS, AIRPORTS AND HARBORS
TITLE 11 UTILITIES AND ENVIRONMENTAL PROTECTION
TITLE 12 RESERVED
TITLE 13 BUILDINGS AND CONSTRUCTION
TITLE 14 RESERVED*
TITLE 14A ADMINISTRATIVE PROVISIONS OF THE CHICAGO CONSTRUCTION CODES*
TITLE 14B BUILDING CODE*
TITLE 14C CONVEYANCE DEVICE CODE*
TITLE 14E ELECTRICAL CODE*
TITLE 14F FIRE PREVENTION CODE*
TITLE 14G FUEL GAS CODE*
TITLE 14M MECHANICAL CODE*
TITLE 14N 2022 ENERGY TRANSFORMATION CODE*
TITLE 14P PLUMBING CODE*
TITLE 14R BUILDING REHABILITATION CODE*
TITLE 14X MINIMUM REQUIREMENTS FOR EXISTING BUILDINGS*
TITLE 15 FIRE PREVENTION
TITLE 16 LAND USE
TITLE 17 CHICAGO ZONING ORDINANCE
TITLE 18 BUILDING INFRASTRUCTURE
CHAPTER 18-11 RESERVED*
CHAPTER 18-13 RESERVED*
CHAPTER 18-14 BUILDING ENERGY USE BENCHMARKING
CHAPTER 18-27 RESERVED*
CHAPTER 18-28 MECHANICAL SYSTEMS*
Article I. Administration (18-28-101 et seq.)
Article II. Definitions (18-28-201 et seq.)
Article III. General Regulations (18-28-301 et seq.)
Article IV. Ventilation (18-28-401 et seq.)
Article V. Exhaust Systems (18-28-501 et seq.)
Article VI. Duct Systems (18-28-601 et seq.)
Article VII. Combustion Air (18-28-701 et seq.)
Article VIII. Chimneys and Vents (18-28-801 et seq.)
Article IX. Specific Appliances, Fireplaces and Solid Fuel-Burning Equipment (18-28-901 et seq.)
18-28-901 General.
18-28-901.1 Scope.
18-28-901.2 General.
18-28-901.3 Hazardous locations.
18-28-901.4 Fireplace accessories.
18-28-901.5 Installation in garages.
18-28-901.6 Remote room natural ventilation concept.
18-28-902 Masonry Fireplaces.
18-28-902.1 General.
18-28-902.2 Masonry fireplaces utilizing wood or other solid fuels.
18-28-902.3 Gas-fired log lighters.
18-28-902.3.1 Approval and installation.
18-28-902.3.2 Prohibited installations.
18-28-902.3.3 Combustion and circulating air.
18-28-903 Factory-Built Fireplaces.
18-28-903.1 General.
18-28-903.1.1 Additional combustion air.
18-28-903.1.2 Direct vent fireplaces.
18-28-903.1.3 Vented gas fireplaces (not including direct vent) located in habitable rooms (not including bathrooms and sleeping rooms).
18-28-903.1.4 Vented gas fireplaces (not including direct vent) located in bathrooms and sleeping rooms.
18-28-903.1.5 Unvented gas fireplaces.
18-28-903.2 Hearth extensions.
18-28-903.3 Unvented gas log heaters.
18-28-903.3.1 Decorative appliances for installation in vented fireplaces.
18-28-903.3.1.1 Prohibited installations.
18-28-903.3.1.2 Installation.
18-28-903.3.1.3.
18-28-903.3.1.4.
18-28-903.3.1.5 Fireplace screens.
18-28-903.3.2 Gas-fired log lighters.
18-28-903.3.2.1 Approval and installation.
18-28-903.3.2.2 Prohibited installations.
18-28-903.3.2.3 Combustion and circulating air.
18-28-904 Pellet Fuel-Burning Appliances.
18-28-904.1 General.
18-28-905 Fireplace Stoves and Room Heaters.
18-28-905.1 General.
18-28-905.1.1 Additional combustion air.
18-28-905.1.2 Direct vent gas room heaters.
18-28-905.1.3 Unvented gas room heaters.
18-28-905.2 Connection fireplace.
18-28-906 Factory-Built Barbecue Appliances.
18-28-906.1 General.
18-28-906.2 Natural gas barbecue grills located on balconies of multi-family buildings.
18-28-907 Incinerators and Crematories.
18-28-907.1 General.
18-28-908 Cooling Towers, Evaporative Condensers and Fluid Coolers.
18-28-908.1 General.
18-28-908.2 Access.
18-28-908.3 Location.
18-28-908.4 Support and anchorage.
18-28-908.5 Water supply.
18-28-908.6 Drainage.
18-28-908.7 Refrigerants and hazardous fluids.
18-28-909 Vented Wall Furnaces.
18-28-909.1 General.
18-28-909.2 Location.
18-28-909.3 Door swing.
18-28-909.4 Ducts prohibited.
18-28-909.5 Manual shutoff valve.
18-28-909.6 Access.
18-28-909.7 Combustion and circulating air.
18-28-909.8 Gas-fired vented wall furnaces.
18-28-909.9 Gas-fired direct-vent wall furnaces.
18-28-910 Floor Furnaces.
18-28-910.1 General.
18-28-910.2 Placement.
18-28-910.3 Bracing.
18-28-910.4 Clearance.
18-28-911 Duct Furnaces.
18-28-911.1 General.
18-28-911.2 Gas-fired duct furnaces.
18-28-911.2.1 Clearances.
18-28-911.2.2 Erection of equipment.
18-28-911.2.3 Access panels.
18-28-911.2.4 Location of draft hood and controls.
18-28-911.2.5 Circulating air.
18-28-911.2.6 Duct furnaces used with refrigeration systems.
18-28-912 Infrared Radiant Heaters.
18-28-912.1 Support.
18-28-912.2 Clearances.
18-28-912.3 Installation in commercial garages.
18-28-912.3.1 Parking structures.
18-28-912.3.2 Repair garages.
18-28-912.3.3 Installation in aircraft hangars.
18-28-913 Clothes Dryers.
18-28-913.1 General.
18-28-913.2 Exhaust required.
18-28-913.3 Clearances.
18-28-914 Sauna Heaters.
18-28-914.1 Location and protection.
18-28-914.1.1 Guards.
18-28-914.2 Installation.
18-28-914.2.1 Combustion and dilution air intakes.
18-28-914.2.2 Combustion and ventilation air.
18-28-914.3 Access.
18-28-914.4 Heat and time controls.
18-28-914.4.1 Timers.
18-28-914.5 Sauna room.
18-28-914.5.1 Warning notice.
18-28-915 Engine and Gas Turbine-Powered Equipment and Appliances.
18-28-915.1 General.
18-28-916 Pool and Spa Heaters.
18-28-916.1 General.
18-28-916.2 Gas-fired pool heaters.
18-28-916.2.1 Location.
18-28-916.2.2 Clearance.
18-28-916.2.3 Temperature- or pressure-limiting devices.
18-28-916.2.3.1.
18-28-916.2.3.2 Bypass valves.
18-28-916.2.3.3 Venting.
18-28-917 Cooking Appliances.
18-28-917.1 Cooking appliances.
18-28-917.2 Prohibited location.
18-28-917.3 Domestic appliances.
18-28-917.4 Gas-fired food service equipment, floor-mounted.
18-28-917.4.1 Clearance for listed equipment.
18-28-917.4.2 Clearance for unlisted equipment.
18-28-917.4.3 Mounting on combustible floor.
18-28-917.4.3.1
18-28-917.4.3.2
18-28-917.4.4 Mounting on noncombustible floor.
18-28-917.4.5 Combustible material adjacent to cooking top.
18-28-917.4.6 For use with casters.
18-28-917.4.7 Level installation.
18-28-917.4.8 Ventilation.
18-28-917.5 Gas-fired food service equipment - counter appliances.
18-28-917.5.1 Vertical clearance.
18-28-917.5.2 Clearance for listed appliances.
18-28-917.5.3 Clearance for unlisted appliances.
18-28-917.5.4 Mounting of unlisted appliances.
18-28-917.6 Gas-fired hot plates.
18-28-917.6.1
18-28-917.6.2
18-28-917.6.3.
18-28-917.7 Gas-fired household cooking appliances.
18-28-917.7.1 Floor-mounted units.
18-28-917.7.1.1 Clearance from combustible material.
18-28-917.7.1.2 Vertical clearance above cooking top.
18-28-917.7.1.3 Level installation.
18-28-917.7.2 Built-in units.
18-28-917.7.2.1 Installation.
18-28-917.7.2.2 Vertical clearance.
18-28-917.7.2.3 Horizontal clearance.
18-28-917.7.2.4 Level installation.
18-28-917.8 Gas-fired open-top broiler units.
18-28-917.8.1 Listed units.
18-28-917.8.2 Unlisted units.
18-28-917.8.3 Protection above domestic units.
18-28-917.8.4 Commercial units.
18-28-918 Forced-Air Warm-Air Furnaces.
18-28-918.1 Forced-air furnaces.
18-28-918.2 Minimum duct sizes.
18-28-918.3 Heat pumps.
18-28-918.4 Dampers.
18-28-918.5 Circulating air ducts for forced-air warm-air furnaces.
18-28-918.6 Prohibited sources.
18-28-918.7 Outside opening protection.
18-28-918.8 Return-air limitation.
18-28-918.9 Gas-fired forced-air, warm-air furnaces.
18-28-918.9.1 General.
18-28-918.9.2.
18-28-918.9.3 Clearance.
18-28-918.9.3.1.
18-28-918.9.3.2.
18-28-918.9.3.3.
18-28-918.9.3.4.
18-28-918.9.3.5.
18-28-918.9.4 Assembly and installation.
18-28-918.9.4.1.
18-28-918.9.4.2.
18-28-918.9.4.3
18-28-918.9.5 Combustion and circulating air.
18-28-918.9.5.1.
18-28-918.9.6 Furnace plenums and air ducts.
18-28-918.9.6.1.
18-28-918.10 Gas-fired horizontal furnaces above dropped ceilings.
18-28-918.11 Gas-fired furnaces located above bathrooms, toilet rooms or bedrooms.
18-28-919 Conversion Burners.
18-28-919.1 Conversion burners.
18-28-920 Unit Heaters.
18-28-920.1 General.
18-28-920.2 Support.
18-28-920.3 Ductwork.
18-28-920.4 Gas-fired unit heaters.
18-28-920.4.1 Support.
18-28-920.4.2 Clearance.
18-28-920.4.2.1 Suspended-type unit heaters.
18-28-920.4.2.2 Floor-mounted-type unit heaters.
18-28-920.4.3 Combustion and circulating air.
18-28-920.4.4 Ductwork.
18-28-920.4.5 Installation in commercial garages.
18-28-920.4.5.1 Parking structures.
18-28-920.4.5.2 Repair garages.
18-28-920.4.6 Installation in aircraft hangars.
18-28-921 Vented Room Heaters.
18-28-921.1 General.
18-28-922 Kerosene and Oil-Fired Stoves.
18-28-922.1 General.
18-28-923 Small Ceramic Kilns.
18-28-923.1 General.
18-28-923.1.1 Installation.
18-28-924 Stationary Fuel Cell Power Systems.
18-28-924.1 General.
18-28-924.2 Reserved.
18-28-925 Gas-Fired Air Conditioners.
18-28-925.1 Independent gas piping.
18-28-925.2 Connection of gas engine-powered air conditioners.
18-28-925.3 Clearances for indoor installation.
18-28-925.4 Assembly and installation.
18-28-925.5 Furnace plenums and air ducts.
18-28-926 Non-Recirculating Direct Gas-Fired Industrial Air Heaters.
18-28-926.1 Application.
18-28-926.2 Prohibited installations.
18-28-926.2.1
18-28-926.2.2
18-28-926.3 Installation.
18-28-926.3.1
18-28-926.3.2
18-28-926.3.3
18-28-926.3.4
18-28-926.4 Clearance from combustible materials.
18-28-926.5 Air supply.
18-28-926.6 Atmospheric vents or gas reliefs or bleeds.
18-28-926.7 Relief openings.
18-28-926.7.1
18-28-926.7.2
18-28-926.8 Purging.
18-28-927 Recirculating Direct Gas-Fired Industrial Air Heaters.
18-28-927.1 Application.
18-28-927.2 Prohibited installations.
18-28-927.2.1
18-28-927.2.2
18-28-927.3 Installation.
18-28-927.4 Clearance from combustible materials.
18-28-927.5 Air supply.
18-28-927.6 Atmospheric vents, gas reliefs, or bleeds.
18-28-927.7 Relief openings.
18-28-927.7.1
18-28-927.7.2
18-28-927.8 Purging.
18-28-928 Gas-Fired Illuminating Appliances.
18-28-928.1 Clearances for listed appliances.
18-28-928.2 Clearances for unlisted appliances.
18-28-928.2.1 Enclosed type.
18-28-928.2.2 Open-flame type.
18-28-928.3 Mounting on buildings.
18-28-928.4 Mounting on posts.
18-28-928.5 Gas appliance pressure regulators.
18-28-929 Reserved.
18-28-930 Radiant Heating Systems.
18-28-930.1 General.
18-28-930.2 Clearances.
18-28-930.3 Installation on wood or steel framing.
18-28-930.4 Installation in concrete or masonry.
18-28-930.5 Finish surfaces.
18-28-931 Unvented Alcohol Fuel-Burning Decorative Appliances.
18-28-931.1 General.
18-28-932 Large-Diameter Ceiling Fans.
18-28-932.1 General.
Article X. Boilers, Water Heaters and Pressure Vessels (18-28-1001 et seq.)
Article XI. Refrigeration (18-28-1101 et seq.)
Article XII. Hydronic Piping (18-28-1200 et seq.)
Article XIII. Fuel Oil Piping and Storage (18-28-1301 et seq.)
Article XIV. Fuel-Gas Piping (18-28-1401 et seq.)
Article XV. Solar Thermal Systems (18-28-1501 et seq.)
CHAPTER 18-29 PLUMBING*
CHAPTER 18-30 RESERVED*
CHAPTER 18-31 RESERVED*
CHAPTER 18-32 RESERVED*
CHAPTER 18-36 REFERENCE STANDARDS*
APPENDIX TO THE MUNICIPAL CODE OF CHICAGO (RESERVED)*
TABLES
Chicago Zoning Ordinance and Land Use Ordinance
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18-28-807.1.4.
   Exhaust systems shall be connected to the engine to prevent the escape of sparks, flame or flue gas within the structure.
18-28-807.1.5.
   Where necessary, engine generator exhaust systems shall have one or more flexible connectors to minimize the possibility of a leak in the engine exhaust system because of engine vibration or thermal expansion.
18-28-807.1.6.
   Exhaust systems shall be metal, masonry, or factory built chimney.
18-28-807.2 Exhaust systems termination.
   The exit terminal of an engine generator exhaust system shall be located as follows:
   1.   Not less than 15 feet above any forced air inlet or operable window located within 20 feet horizontally on the same or adjacent buildings.
   2.   Not less than 10 feet from an adjacent building and not less than 8 feet above grade where located adjacent to a public walkway.
   3.   The exit terminal shall be so arranged that flue gases are not directed to buildings within 20 feet and are directed so as not to jeopardize people.
   4.   Through-the-wall engine exhaust systems shall not terminate in an area where condensate, vapor, or odor could create a nuisance or hazard.
   5.   Where necessary, exhaust systems shall be shielded to prevent personnel burns.
Article IX. Specific Appliances, Fireplaces and Solid Fuel-Burning Equipment (18-28-901 et seq.)
18-28-901 General.
18-28-901.1 Scope.
   This chapter shall govern the approval, design, installation, construction, maintenance, alteration and repair of the appliances and equipment specifically identified herein and factory-built fireplaces.
18-28-901.2 General.
   The requirements of this article shall apply to the mechanical equipment and appliances regulated by this article, in addition to the other requirements of this chapter.
(Amend Coun. J. 9-14-21, p. 35949, Art. IX, § 1)
18-28-901.3 Hazardous locations.
   Fireplaces and solid fuel-burning appliances shall not be installed in hazardous locations.
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