Safety Pilot Lighting Kits provide convenient lighting as well as safety shutdown in case of interrupted gas flow or accedental blowout of flame.
A Safety Pilot Lighting Kit is required for all Propane Burners istallations, due to the nature of propane.
Propane is heavier than air. In its raw state, propane sinks and pools at the floorlevel. It will continue pooling until it reaches a spark or flame, such as your water heater, furnce pilot light or static electricity, which can recult in an explosion and fire.

Natural gas is lighter than air. In its raw state natural gas safely vents up the chimney into the atmosphere.
Although not necessary, many jurisdictions require the installation of a Safety Pilot Lighting Kit on natural gas sets. In any case, a Safety Pilot Lighting Kit makes for a convenient means of lighting and enjoying your gas log set.
The SPK-3 are avalible in LPG and NG.