Can S1 be used with Natural Gas? 17 October 2023 09:21 S1 is certified for use with Propane only and cannot be used with Natural gas. Related articles Can I convert my Wood Dome Oven to Gas? Can I use S1 with wood? What's the difference between Dome and S1? Will the regulator provided with Dome fit the gas bottles in my country? What does the S1 unboxing process look like?