The temperature in a furnace equipment room is 65°F (18.3°C). Flue gas temperature is 375°F (190.6°C). What is the net stack temperature?

a. 65°F (36.3°C)
b. 310°F (172.3°C)
c. 375°F (208.3°C)
d. 440°F (244.3°C)


b. 310°F (172.3°C)

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