A Closer Look At Condensing Boiler Efficiency PART-IV

Mat Ansari PE

Sensible Heat Loss in Dry Flue Gases

Now let us examine the second category of energy loss – the loss of sensible heat of hot flue gasses being vented to outside.  In Equation 6 above we have 18.5 lbs. of dry hot flue gas (products of combustion) being vented out of the stack.  The specific heat of dry products of combustion is approximately 0.24 BTU/lb. °F.

Please read the full article in the PDF link below and then come back here for comments.

20131028 Condensing Boiler Efficiency-4

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