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Author Question: The two types of bi-metallic devices are: What will be an ideal ... (Read 43 times)

s.tung

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The two types of bi-metallic devices are:
 
  What will be an ideal response?

Question 2

What is the purpose of the refractory?
 
  What will be an ideal response?



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dellikani2015

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Answer to Question 1

Spiral and conical.

Answer to Question 2

The refractory reflects and concentrates heat in the combustion area of the heat exchanger to improve combustion efficiency.



s.tung

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dellikani2015

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