That design for under the flues is new to me. I only had 1 drop flue, but under the flues, from the top of the ramp back to just short of the rear chamber under the base stack it was flat and 1/2" space,and maybe down to 1/4" space. On my 2 raised flue set ups I went with 1/4" space and flat. If someone has come up with a better design, clue me in please.
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.