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Patio Gas Versus Butane and Propane Patio heaters are an excellent option to provide a warm and comfortable temperature to your outdoor spaces, allowing you to extend your use of your outdoor area. They are highly efficient and can be adjusted to provide a variety of heat. Gas is available in small bottles called "patio bottles" that are designed to work with BBQs and use a clip on regulator and butane cylinders come with screw in connectors. What is Patio Gas? Patio gas is propane or butane in a small '