I use a Marcland barometer/boil meter. I'm at 470' elevation and my draw temps this year have ranged from 218.2 up to 220.4. I get those by taking the barometer reading at that time and add 7.3 F. I think last year I had a time or 2 when a draw temp was a little over 221F but not by much. I really like the Marcland Baro/Boil meter, it quickly gives me the accurate boil temperature so I can make adjustments as often as needed. I used to just draw at 219.3 and then adjust as needed, now I find very little adjusting necessary.
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.