All sounds good, except 2 taps in a 4" tree that is being cut down this year. If you want, I guess 1 tap would be OK, but you really are fooling yourself. At 4" the crown willo be so small, that tree won't make much sugar, putting 2 taps in may give you slightly more sap than one, but being very low in sugar you are just extending the time you need to boil with no real gain.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.