John Dirks Jr Posted September 9, 2015 Report Share Posted September 9, 2015 Oil furnace single wall vent. Horizontal portion just 5 inches below the floor structure and wiring. Owner said an HVAC contractor told them it was okay. I've reported on clearance to combustibles on many occasions but this is the first one that really shows threat of igniting the structure. Click to Enlarge 54.32 KB Quote Link to comment Share on other sites More sharing options...
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