Forced draft boilers include fan energy of the boiler combustion air fan. I have been in a discussion with colleagues as to whether or not this parasitic energy is to be included in the Appendix G proposed design model. My belief is that this energy should be included and that it would not be included in the baseline case where a natural draft boiler is specified.

Any thoughts?

Christopher Jones, P.Eng. | Senior Energy Analyst
RWDI
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