What diameter stack do you plan? If large enough you will be fine.
I have a 3x8 with a 3x6 full cover hood over the flue pan and an extension of 20" over the 3x2 syrup pan that is 16" off the syrup pan. I have 2- 8" steam stack that terminate in the cupola, they don't even go out side and they work fine. The steam off the syrup pan is sucked into the hood about 99% with very little escaping even thou that part of the hood is up 16" and is 4" shorter than the pan. It still works.
Based on that I think you should be fine. I might suggest a 10" min and better a 12" stack if you will have just 1 stack, but I think most of the time a 10" will do.
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.