In my never ending quest to gain just a little more evaporation rate, I've come up with
this idea. Raise my flue pan 1/2 inch. With a drop flue and only one float, sap/syrup level remains
constant between both pans. But, if I raise the flue pan 1/2 inch, I will reduce the amount of sap
in it by almost 4 gallons. I just crunched the numbers and right now at 1 3/4 inches it holds 21.8 gallons.
By lowering the level 1/2 inch, I reduce the amount by 3.9 gallons, and still maintain 1 3/4 inch in my syrup pan.
I would think I might gain maybe 3 gallon an hour? Any gain as we all know, provides big time savings over the course of a season.
I built a preheater this year, and reduced my boil time by 24 hours. Quite a good $180 dollar investment. I'm at about 61
gallon an hour and feel I'm at a place where a little tweaking could get me to 70gph.