billh42 Posted September 6, 2015 Report Share Posted September 6, 2015 I noticed the other day that the furnace in my fifth wheel was throwing some soot. I checked the combustion air intake and it is clear. Did not see any rust or cracks in the heat exchanger and the CO detector shows no CO inside. We have been sitting at 7000 foot altitude while work camping this summer and I am wondering if the altitude is affecting the combustion. Less oxygen = yellow flame = soot. Or is it possible to get "bad" propane? Any thoughts on this would be appreciated. Link to comment Share on other sites More sharing options...
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