Coalbrookdale Coalbrookdale Severn GSi3 Propane Gas is a propane gas stove designed for use with propane gas only. It features a piezo spark igniter for easy lighting, a pilot light, and a safety feature called a flame supervision device. The gas to the stove is controlled by a control knob with positions for OFF, PILOT, and a graduated section for minimum and maximum gas rate. The stove has been designed to relevant safety standards, but many parts of the appliance can become hot to touch during use.