which of the following is not a type of ignition source in a gas furnace?\nstanding pilot\nspark…

which of the following is not a type of ignition source in a gas furnace?\nstanding pilot\nspark exciter\nspark ignition\nhot surface ignitor
Answer
Brief Explanations:
In gas furnaces, standing pilot, spark ignition, and hot - surface ignitor are common ignition sources. A spark exciter is not a typical ignition source for gas furnaces.
Answer:
Spark exciter