Discover Our Flame-Sensing Battery Spark System The system of this Manual Spark Ignition Kit utilizes a standing pilot with thermocouple sensing to safely control gas flow. 90,000 BTU Manual flame height adjustment Manual switch spark igniter (9V battery) Safety pilot valve mounted in a stainless steel box (7″ x 5″ x 2″) The pilot assembly tubing is 36″ long. Provides easy ignition and safety for outdoor fire features up to a 24″ fire ring or a 36″ linear burner.