All but one of the stoves reviewed were gas stoves either propane or butane. The reason I concentrated on gas stoves is mainly it is easier to use than liquid stoves. Propane and butane light instantly, whereas liquid stove often needs to be primed and pumped to build up the pressure in the liquid fuel tank. Also filling the liquid fuel tanks can be messy. However, that said liquid fuel perform a lot better in colder climates that propane and certainly butane. And Gas cylinders or tanks become inefficient when they are almost empty, opposed to liquid fuel which will maintain its performance and efficiency until the fuel is completely spent.