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Author Question: When installing an oil fired furnace in a confined space with a firing rate of 100,000 Btuh, what is ... (Read 26 times)

Capo

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on: Jul 27, 2018
When installing an oil fired furnace in a confined space with a firing rate of 100,000 Btuh, what is the minimum free air opening required if the combustion air vents are directly communicating with the outside?
 
  A) 100,000 / 2,000 = 50 square inches for each grille
  B) 100,000 / 5,000 = 20 square inches for each grille
  C) 100,000 / 1,000 = 100 square inches for each grille
  D) 100,000 / 4,000 = 25 square inches for each grille

Question 2

If combustion air openings pass through horizontal ducts with 4,000 BTU input, how large should the openings measure?
 
  A) 3 inches squared B) 1 inch squared C) 4 inches squared D) 2 inches squared


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macagn

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

A


Capo

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Reply #2 on: Jul 27, 2018
Thank you!


macagn

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Reply #3 on: Jul 27, 2018
Always glad to help...


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