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Académie
HVAC
NCI Carbon Monoxide & Combustion Safety
Combustion Air Requirements
Vérification des connaissances
Combustion Air Requirements
Vérification des connaissances
Vérification des connaissances
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A 120,000 BTU/hr furnace and a 50,000 BTU/hr water heater share a utility room. Using the indoor two-opening method, what minimum total free area is required for each opening?
A
85 square inches for each opening
B
50 square inches for each opening
C
170 square inches for each opening
D
120 square inches for each opening
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