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Gas Fitter 2 Practice Test
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Question Number 53
How far above the burner port does the centre line of the flue outlet have to be to convert a revertible flue furnace with a natural draft burner?
A. at least 6" (150 mm)
B. less than 12" (300 mm)
C. at least 12" (300 mm)
D. at least 24" (600 mm)
✔ Correct Answer:
C. at least 12" (300 mm)
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