Repairing 1993 Rheem UGLG furnace, replacing dangerous ⚠️ flue pipe, and making sure it’s safe

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I was called to this address because she had no heat. I initially thought the board was the problem, because the flame sensor wasn’t getting a signal. But, it turns out it just needed a flame sensor kit. I also replaced flue pipe, and performed a combustion analysis. #hvac #hvaclife #rheem #testo# #furnace #testo300