The flame pattern a technician would expect to see...

NATE Gas Heating Exam Questions

Question Number 16

The flame pattern a technician would expect to see on a properly operating single stage gas furnace equipped with "in shot" type burner is a:

Hard and forceful flame with a light blue appearance and little or no yellow.

✔ Correct Answer:

Hard and forceful flame with a light blue appearance and little or no yellow.

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NATE Gas Heating Exam Questions

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