Years ago we used to make syrup on a Fisher, (it is still heating our home). Try to get another pot or 2 if you can fit them on the Fisher. It seems we used to have 5 pots going and we kept a good fire going. We kept the nearest window open on each side of the Fisher as needed to keep it from getting too hot in the house.
Have fun, the kids will remember this and some are likely to do the same with their kids.
Dave Klish, I recently bought 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.