Gas

A single pound of propane can generate 21,548 BTU (British Thermal Units) of energy, while butane can produce 21,221 BTU per pound []. For comparison, here is how LP Gases stack up to other fuels in terms of energy:

Butane's boiling point is approximately 31 F (-0.6 C), which means it will not vaporize in very cold temperatures. This is why butane has more limited uses and is mixed with propane instead of being used by itself.

Propane is particularly useful as a portable fuel because its boiling point is
-44 F (-42 C). That means that even at very low temperatures, it will vaporize as soon as it is released from its pressurized container. This results in a clean-burning fuel that doesn't require a lot of equipment to vaporize it and mix it with air. A simple nozzle will suffice.

There are two LP gases that can be stored in liquid form with only moderate pressurization -- propane and butane. Isobutane, which has the same simple chemical formula as butane but has a different chemical structure, is also used. Usually, butane and isobutane are mixed with propane in various proportions, depending on the intended use of the fuel.

What is LP Gas?

Description:

                                    Liquefied Petroleum Gas (LPG)

Liquefied Petroleum Gas (LPG)