Upon arrival, inspected furnace and found no major concerns. Discussed with homeowner and requested for more information from previous visit. Photos shown to me resembled the burner compartment and the pinch welds of the factory heat exchanger. Nothing concerning was seen. Homeowner was still interested in further inspection and requested a combustion analysis be performed. Performed combustion analysis and found no concerns with combustion process, unit is only making 24 ppm COAF and 12 ppm CO on high fire. Unit is of great health for age being 22 years old. Recommend no changes unit is of good health.
