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

Author Question: What size should the combustion air openings be for a room with an 80,000 BTU/hr input furnace and a ... (Read 183 times)

ashley

  • Hero Member
  • *****
  • Posts: 584
on: Jul 24, 2018
What size should the combustion air openings be for a room with an 80,000 BTU/hr input furnace and a 35,000 BTU/hr water heater if the openings are opening directly into a ventilated attic and a ventilated crawlspace?
 
  A) The size is irrelevant so long as there are combustion air vents.
  B) 115,000/1,000 = 115 sq in free area each
  C) 115,000/2,000 = 57.5 sq in free area each
  D) 115,000/4,000 = 28.75 sq in free area each

Question 2

What type of fan is used in most air-cooled condensing units?
 
  A) A draw-through propeller fan
  B) A blow-through centrifugal fan
  C) A draw-through centrifugal fan
  D) No fanmost condensing units are natural draft.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

miss.ashley

  • Sr. Member
  • ****
  • Posts: 371
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

A


ashley

  • Hero Member
  • *****
  • Posts: 584
Reply #2 on: Jul 24, 2018
Thank you!


miss.ashley

  • Sr. Member
  • ****
  • Posts: 371
Reply #3 on: Jul 24, 2018
Always glad to help...


« previous next »
 

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Beak size and Drought Beak size and Drought
The strange situation. The Strange Situation features a series of episodes in which (a) the mother l The strange situation. The Strange Situation features a series of episodes in which (a) the mother l
Cleaning the Examination Room Cleaning the Examination Room
The major cortical input and output pathways of the posterior parietal association cortex. Shown are ... The major cortical input and output pathways of the posterior parietal association cortex. Shown are ...
Europe’s Size and Location Europe’s Size and Location
Video: Bone processes - resorption and deposition, remodeling and response to stress in adult bones

For a complete list of videos, visit our video library