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Author Question: How did serpentine heat exchangers compare to older heat exchangers? A) The serpentine heat ... (Read 85 times)

penguins

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on: Jul 24, 2018
How did serpentine heat exchangers compare to older heat exchangers?
 
  A) The serpentine heat exchangers required a heat-induced fan, causing negative pressure.
  B) The serpentine heat exchangers became straighter and longer.
  C) The serpentine heat exchangers were made from plastic.
  D) The serpentine heat exchangers utilized a pressure switch.

Question 2

The temperature rise of a furnace is:
 
  A) The BTU rating of the furnace.
  B) The amount of temperature a furnace can add to a house.
  C) The temperature difference between the air entering the furnace and leaving the furnace.
  D) The difference between the flue gas temperature and the combustion air temperature.


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joewallace

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Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

C


penguins

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Reply 2 on: Jul 24, 2018
Gracias!

ecabral0

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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