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Adjustment of burner flame on Dunkirk boiler, what is correct?
I was finishing up my cleaning of my Dunkirk PWB-8d(Gas fired, atmospheric) and looking at the flame height/composition on the burners.
I was wondering what was ideal/recommended? My flames were about 2 inches high, about 1/3 blue, about 2/3 yellow. I did test moving the orifices a bit but that honestly didn't seem to make much of a change.
More curious than anything else what is the best practice or goal, much like in High School Chemistry class where we adjusted the bunsen burner to be a pure blue flame.
Just a DIY'er trying to learn, and improve and maintain his converted ca 1929 overhead gravity hot water system since there is no one local that can.