<< This is my first time posting photos, so I apologize that they seem to be uploaded upside down. Not quite sure how to fix this, so please bear with me. >>
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My arch supports a 2-part finishing pan and a dropped flute evaporator. I raised the arch under the evaporator using a 45' slope and created a 1" deep channel under the pans with a cyclone cavity about mid-pan.
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I also added a flue damper and a chimney pressure & air temperature monitoring mechanism.
I haven't used this new configuration yet to make syrup, but my tests on boiling water show an 80% improvement in wood burning efficiency. Looking forward to seeing what difference this will make this spring!
Paul