caryseidner Posted January 14, 2009 Report Share Posted January 14, 2009 I saw these ice formations on a chimney cap of a house I inspected today. A natural gas water heater and forced air furnace are routed into the chimney. Outside temperature...DAMN COLD! (10 degrees +/-). The color in the photo is accurate. What the heck causes this? Click to View 27.71 KB The neighboring house chimney had the same thing on it. Except the color was white (newer appliances/flue = less rust?). Click to View 26.9 KB I'm guessing there is no problem with this, but I was wrong once. Quote Link to comment Share on other sites More sharing options...
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