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2. Liquefied petroleum gas - Wikipedia

   en.wikipedia.org/wiki/Liquefied_petroleum_gas

   LPG is composed mainly of propane and butane, while natural gas is composed of the lighter methane and ethane. LPG, vaporised and at atmospheric pressure, has a higher calorific value (46 MJ/m 3 equivalent to 12.8 kWh/m 3) than natural gas (methane) (38 MJ/m 3 equivalent to 10.6 kWh/m 3), which means that LPG cannot simply be substituted for ...

3. Barbecue grill - Wikipedia

   en.wikipedia.org/wiki/Barbecue_grill

   A single-burner propane gas grill that conforms to the cart grill design common among gas grills. Gas-fueled grills typically use propane or butane (liquified petroleum gas) or natural gas as their fuel source, with the gas flame either cooking food directly or heating grilling elements which in turn radiate the heat necessary to cook food. Gas ...

4. Liquefied natural gas - Wikipedia

   en.wikipedia.org/wiki/Liquefied_natural_gas

   The heating value depends on the source of gas that is used and the process that is used to liquefy the gas. The range of heating value can span ±10 to 15 percent. A typical value of the higher heating value of LNG is approximately 50 MJ/kg or 21,500 BTU/lb. [2] A typical value of the lower heating value of LNG is 45 MJ/kg or 19,350 BTU/lb.

5. Gas stove - Wikipedia

   en.wikipedia.org/wiki/Gas_stove

   A gas stove is a stove that is fuelled by flammable gas such as natural gas, propane, butane, liquefied petroleum gas or syngas. Before the advent of gas, cooking stoves relied on solid fuels, such as coal or wood. The first gas stoves were developed in the 1820s and a gas stove factory was established in England in 1836.

6. Propane - Wikipedia

   en.wikipedia.org/wiki/Propane

   The density of propane gas at 25 °C (77 °F) is 1.808 kg/m 3, about 1.5× the density of air at the same temperature. The density of liquid propane at 25 °C (77 °F) is 0.493 g/cm 3, which is equivalent to 4.11 pounds per U.S. liquid gallon or 493 g/L. Propane expands at 1.5% per 10 °F. Thus, liquid propane has a density of approximately 4.2 ...

7. Flattop grill - Wikipedia

   en.wikipedia.org/wiki/Flattop_grill

   Many are powered by natural gas or propane, but there are electric models as well. In addition, there are models made for indoor or outdoor cooking that can be fixed (built-in) or portable (wheeled or free-standing). Flattop grills can be contrasted with open-flame grills, which cook food over a grate with direct or indirect flame.