maple1
Minister of Fire
Wonder if there's a chance some rainwater gets in the top of the chimney & makes its way down there?
I got this out of my flue
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Fred61
Minister of Fire
Wood ash is not acidic. In fact it is highly caustic which is the opposite end of the scale. However this doesn't mean that it is not corrosive.
Fred61
Minister of Fire
It is a out door inside a shed. I did not clean it well last summer as I used it about every two weeks to heat the pool. I did the heavy cleaning just before light off.
You're right, should have dawned on me as I take charcoal tablets when I have indigestion but than again I wasn't head of the class in Chem. 101!
Not necessarily, if rain was coming down your chimney and somehow running into these tubes the ash present would act like a sponge and hold it until it was saturated. Ash of course is bone dry and thirsty so it can pull in moisture from the air, especially if you're located in a humid climate. A rain cap might be a helpful part of preventive maintenance but a better solution is to get rid of as much ash as possible once the heating season is done with.
Me thinks...combination of moisture from either flue condensation or rain dripping down and low grade steel...but I am usually off my rocker..especially when the Pats win...
Congrats Pats fans....Seattle just gifted u one.
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