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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi guys,<o:p></o:p></p><p class=MsoNormal>This might have come up in the past but I could find the conversation.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>If I am only certifying/modeling a new addition, is the baseline system type based on the area of the whole building or only the new addition? Is there black and white guidelines on this or is it a bit of grey area depending on how integrated the HVAC in the addition is with the whole building?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal>Steve<o:p></o:p></p></div></body></html>