2 county-level rules, plus city-specific rules for 1 city in Ada County, Idaho.
Verified from official government sources
Propane and charcoal grills are allowed at homes in Ada County. Propane cylinders used with grills follow the Idaho Fire Code and NFPA 58, which bar use in basements or pits where gas can collect. During red-flag or high fire-danger days, open-flame cooking may be restricted in foothill wildfire zones.
Idaho Fire Code (2015) 6103.2.1.1
LP-gas containers shall not be used in a basement, pit or similar location where heavier-than-air gas might collect.
Backyard smokers using wood, pellets, charcoal, or propane are allowed for residential cooking in Ada County. They are treated as cooking devices, not open burning, so no burn permit is needed, but they may not create a smoke nuisance and can be limited during foothill fire restrictions.
1 cities in Ada County have their own outdoor cooking rules. Each link goes to that city's dedicated page with code citations.
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