This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: When installing an oil fired furnace in a confined space with a firing rate of 100,000 Btuh, what is ... (Read 59 times)

Capo

  • Hero Member
  • *****
  • Posts: 545
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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macagn

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

A


Capo

  • Hero Member
  • *****
  • Posts: 545
Reply #2 on: Jul 27, 2018
Thank you!


macagn

  • Sr. Member
  • ****
  • Posts: 345
Reply #3 on: Jul 27, 2018
Always glad to help...


« previous next »
 

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Feedforward control of breathing rate in an animal trained for athletic exercise. Feedforward control of breathing rate in an animal trained for athletic exercise.
Human Memorabilia in Space Human Memorabilia in Space
A compression gauge designed for the higher compression rate of a diesel engine should be used when ... A compression gauge designed for the higher compression rate of a diesel engine should be used when ...
Most drugs exhibit first-order elimination, in which the rate of drug elimination is equivalent to ... Most drugs exhibit first-order elimination, in which the rate of drug elimination is equivalent to ...
Enzymatic rate enhancements Enzymatic rate enhancements
For each function f(x) = 6x^2 - 4, estimate the instantaneous rate of change for the given ... For each function f(x) = 6x^2 - 4, estimate the instantaneous rate of change for the given ...
Video: Biological organic compounds

For a complete list of videos, visit our video library