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Author Question: How does the induced draft blower improve furnace efficiency of a natural draft furnace? A) the ... (Read 53 times)

Sportsfan2111

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on: Jul 26, 2018
How does the induced draft blower improve furnace efficiency of a natural draft furnace?
 
  A) the combustion gasses can be introduced into the duct system, raising the supply air temperature
  B) combustion gasses do not have to be as hot to correctly vent
  C) the induced draft motor uses less current than the natural draft motor
  D) the induced draft blower makes it possible for furnaces to use larger, more open heat exchangers

Question 2

Seal face distortion can cause _____.
 
  a. misalignment
  b. excessive leakage
  c. pitting
  d. blistering


joshbk44

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Reply #1 on: Jul 26, 2018
Answer to Question 1

B

Answer to Question 2

b


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