Not recommended for homeowners without extensive plumbing/gas fitting experience; professional, licensed installation is strongly advised due to inherent safety risks, critical code compliance, and permit requirements.
Installation involves working with pressurized natural gas, requiring strict adherence to multiple codes (2024 IRC, 2023 NEC, Illinois Plumbing Code), specific DuPage County frost depth requirements (42 inches), and mandatory permitting and inspections. Errors can pose significant safety risks.
Project Guidelines & Rules
Permitting & Inspections
3 Rules
Obtain all necessary permits from your local building department prior to commencing any work involving gas piping.
DuPage County Ordinances, IRC R105.1
All gas piping installations must be inspected and approved by the local building department. Do not conceal piping before the required inspection.
IRC G2410.1 (IFGC 406.1), DuPage County Ordinances
Required inspections typically include a rough-in inspection (including a pressure test) and a final inspection of the completed system and appliance connection.
IRC G2410.1 (IFGC 406.1)
General Gas Piping Requirements
5 Rules
Gas piping materials must be approved for the intended use and pressure. Common materials include Schedule 40 (or heavier) black steel pipe or corrugated stainless steel tubing (CSST) with proper sizing and protection.
IRC G2414.1 (IFGC 403.1), G2414.4 (IFGC 403.4)
Pipe sizing must be accurately calculated based on the total BTU/hr demand of the grill, the length of the pipe run, and available gas pressure to ensure adequate gas supply without excessive pressure drop.
IRC G2413.2 (IFGC 402.2), Tables G2413.4(1) through G2413.4(4)
All gas piping, fittings, and components shall be approved and listed for use with natural gas.
IRC G2404.1 (IFGC 301.1)
All joints in metallic piping must be made with approved fittings and sealing compounds, appropriate for natural gas. Threaded joints must be clean, tight, and free of leaks.
IRC G2414.5 (IFGC 403.5)
CSST installations must strictly follow manufacturer's instructions, including proper bonding and protection against physical damage.
IRC G2414.5.3 (IFGC 403.5.3), G2414.9.4 (IFGC 403.9.4)
Underground Piping Requirements
5 Rules
Underground gas piping must be installed with a minimum depth of 12 inches (305 mm) below grade. In DuPage County, to protect against damage from ground heave and frost, all gas piping subject to frost damage must be installed below the established frost depth of 42 inches (1067 mm) or protected in an approved manner.
IRC G2415.6 (IFGC 404.6), IRC G2404.1
All metallic underground piping must be protected against corrosion using approved protective coatings or cathodic protection. Non-metallic piping (e.g., polyethylene) must be approved for underground use and installed with an electrically conductive tracer wire.
IRC G2415.7 (IFGC 404.7)
Before any excavation, call JULIE (811) at least 48 hours in advance to locate existing underground utilities.
Illinois Underground Utility Facilities Damage Prevention Act
All excavation, trenching, and backfilling operations must comply with the safety standards and practices outlined in the Illinois Plumbing Code and OSHA regulations.
Illinois Plumbing Code Section 890.170, OSHA 1926 Subpart P
Backfill material around the pipe must be free of rocks, broken concrete, or other abrasive materials that could damage the pipe or its coating.
IRC G2415.6 (IFGC 404.6)
Above-Ground Piping & Protection
3 Rules
Gas piping above ground that is exposed to potential physical damage (e.g., risers, piping near driveways or high-traffic areas) must be adequately protected.
IRC G2415.8 (IFGC 404.8)
Piping must be adequately supported to prevent sagging and undue stress on joints. Supports shall be of approved materials and spaced according to code.
IRC G2415.5 (IFGC 404.5)
Maintain required clearances from combustible materials, ignition sources, and electrical components as specified by code and manufacturer instructions.
IRC G2408.3 (IFGC 305.3), G2408.4 (IFGC 305.4)
Termination & Appliance Connection
5 Rules
An accessible manual shutoff valve must be installed upstream of the quick-disconnect device (if used) and within 6 feet (1829 mm) of the appliance.
IRC G2420.5.1 (IFGC 409.5.1)
If a quick-disconnect device is used for a movable grill, it must be an approved, listed device that seals automatically when disconnected.
IRC G2420.6 (IFGC 409.6)
Flexible gas connectors to the grill must be approved, listed, sized for the appliance, and shall not exceed 6 feet (1829 mm) in length.
IRC G2420.7 (IFGC 409.7)
Maintain required clearances from combustible materials to the grill and its exhaust system as per manufacturer's instructions and local fire safety codes.
IRC G2408.2 (IFGC 305.2), Manufacturer's Instructions
Outdoor grills should be placed on a non-combustible surface or have adequate clearance to combustible surfaces as per manufacturer's instructions.
IRC G2408.2 (IFGC 305.2)
Electrical Requirements (If Applicable)
2 Rules
Any hardwired electrical components for the grill (e.g., igniters, rotisserie motors, lights) must comply with the 2023 National Electrical Code. Outdoor receptacles and associated wiring must be GFCI protected and listed for wet locations.
NEC 210.8(A)(3), NEC 406.9, NEC Articles 300 & 314
Wiring methods and equipment used for outdoor installations must be suitable for outdoor use and protected from physical damage and environmental factors.
NEC 300.5, NEC Article 314
System Testing & Purging
4 Rules
After installation, all gas piping must be pressure tested by the installer with an inert gas or air (never natural gas) to a minimum of 1.5 times the working pressure, but not less than 3 psig, for a minimum duration as specified by code.
IRC G2410.4.1 (IFGC 406.4.1)
The test gauge used must be appropriate for the test pressure, with a range not less than 0-6 psig or 0-15 psig for pressures above 3 psig.
IRC G2410.4.2 (IFGC 406.4.2)
The piping system must hold the test pressure without any drop for the specified duration to be considered leak-free.
IRC G2410.4.1 (IFGC 406.4.1)
After successful pressure testing and before commissioning, the system must be purged of air in an approved and safe manner.
IRC G2410.6 (IFGC 406.6)
Safety & Warnings
3 Rules
Never use an open flame to check for gas leaks. Use an approved leak detection solution.
IRC G2410.5 (IFGC 406.5)
Ensure adequate ventilation around the grill during operation to prevent accumulation of combustion byproducts.
Manufacturer's Instructions, general safety practices
Any modification or repair to existing gas piping must be performed by a qualified professional and requires a permit and inspection from the local building department.
IRC G2404.1 (IFGC 301.1), DuPage County Ordinances
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