When natural gas burns, energy
is released in the form of heat. Three things are required to make this process
happen properly in your home appliances: heat from a pilot
light, the right
amount of fuel, and the right amount of air.
Pilot Light Safety In some newer appliances, the pilot light is an electrical spark that
happens only when you turn on the appliance. Or, the pilot light may be
a small
flame that burns continuously, using a tiny amount of natural gas as
its fuel. By the way, if you smell a slight odor of natural gas, it may mean that
a pilot light has gone out, and you should tell an adult. What Color Is Your Flame? Ranges and other appliances are carefully adjusted to provide the correct
gas-air mixture. A normal flame (steady, blue, and cone-shaped) means
the gas-to-air mixture is perfect. While flecks of orange are okay, if the flame is yellow, large, and flickering
the appliance may need a safety adjustment. Ask an adult to have it checked
by a qualified repairperson. The exception is decorative gas appliances
such as fire logs, which are designed to have a yellow flame. Next: Carbon
Monoxide Alert 
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