Steve Booth Oct 1, 2010:

cylinder or bottle? Both cylinder and bottle are good and answers to choose the correct one might be a little more difficult. For instance
the normal gas containers that you get that are generally used for portable fires gas BBQs etc we tend to call them bottles. Larger ones that generally aren't for domestic use we refer to as cylinders. Smaller ones that are used for camping it pretty much depends on the shape tall thin ones tend to be called cylinders short fatter ones bottles.