AK HVAC Practice Questions - Alaska Mechanical Administrator HVAC License Exam

What is the recommended over-draft for an oil burner chimney as measured with a draft gauge?

0 to -0.01 inches w.c. −0.02 to −0.04 inches w.c. −0.10 to −0.15 inches w.c. −0.50 inches w.c.

−0.02 to −0.04 inches w.c.

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