Originally Posted By: mergus
That is an interesting exchange of letters. Thanks for posting it.

Mergus


Yes interesting but also disappointing and another example of a Flues failing. I always liked the Flues over the NID in my experience although the Flues I had in 20 gauge (built in 1925) was outrageously heavy and so was the NID in 16 gauge (built in 1937). But the 16 gauge Flues I had was perfect, however I cannot remember and I didn't write it down what year that 16 gauge was built.