The British Thermal Unit is the amount of heat required to raise the temperature of 1 pound (0.4kg) of water 1°F

Liquid Propane is a compressed gas found in canisters ranging from 1 pound to 100 pounds plus, the most common being 20 pounds

National Pipe Threads - an American standard thread

Also called Flashback.  The flash back of the flame through the venturi (the burner and tube feeding the burner) causing burning at the orifice.

Device forming an integral unit for the introduction of propane with air or oxygen into the combustion zone for ignition.

With respect to propane storage refers to a container designed and fabricated in accordance with the specifications of the US Department of Transportation for the storage of propane.

The opening in a burner or other device whereby the flow of propane gas is limited and through which the gas is discharged to the burner.

BTU input burned by an appliance during one hour of full operation.

A device for controlling or maintaining a uniform gas pressure.

A device that will shut off gas supply to the controlled burner in the event of flame failure.

The pair of dissimilar metallic elements so joined as to produce a current when the junctions are at different temperatures.  Used for sensing the flame in a safety shut-off assembly.