We can use a ground-service cable; rig a pilot light on it, and kick it out, as soon as they get in close.
Most stoves are constructed so that there is a pilot light for the oven.
The gas flame came from the pilot light like a slowly spreading stream or an unfolding flower.
Sometimes when the gas pressure is low, the pilot light will go out.
Mr. Spokesly strained his eyes to catch the pilot light again.
Sinking back behind the hilltop, Brion covered the pilot light with his hand and turned on the transmitter.
One of the functions of a pilot light is to prevent people from being burnt in case of an explosion in the oven.