I took a piece of beech wood it started at a 24% moisture reading weighting 3lb 7 1/2 oz placed this split on top of my griddle running on average about 450 at 8:30 pm day 1 here are my results
9:47 pm that same night 22% 3 lbs 6 1/4 oz
10:45pm " "" "" 18 % 3 lbs 5 3/4 oz
placed under stove remainder of night
next morning
7am 17% 3 lbs 4 5/8 oz
same day under stove stove not running many hours 7:30 pm 15 % 3 lbs 4 1/2 oz
split remained under stove again on a few hours during day maybe 4-6
8 :30 pm 12 % 3lbs 2 5/8 oz
9:47 pm that same night 22% 3 lbs 6 1/4 oz
10:45pm " "" "" 18 % 3 lbs 5 3/4 oz
placed under stove remainder of night
next morning
7am 17% 3 lbs 4 5/8 oz
same day under stove stove not running many hours 7:30 pm 15 % 3 lbs 4 1/2 oz
split remained under stove again on a few hours during day maybe 4-6
8 :30 pm 12 % 3lbs 2 5/8 oz