I think you will find that it dries the rest of that way pretty fast. Assuming you had it out all summer and it wasn't getting rained upon daily it got rid of most of the easy water all ready. If the surface of the wood is at 85-90 all of the time, along with drastically reduced RH from summer levels your rate of drying will be greatly accelerated. Expect results along the lines of the below link, but slower than in the study as you will be operating at a much lower temp. It isn't happening in 287 hours at 90 degrees. http://www.fpl.fs.fed.us/documnts/fplrn/fplrn254.pdf
In a climate like ours, the inside of your house in the winter, especially at that temp, is a pseudo-kiln. The cold air entering from outside can't hold very much moisture, so when it warms up inside the house, the relative humidity is very low. But you probably still won't get fresh oak dry enough. Could make for an interesting study though. We'll expect weekly updates on your progress.
With conditions like you have, 1/2 the time. 18 months, should be ready. Doing a test now with wet birch , it's drying Much faster than the outside stuff. ( it's Not oak though.)
Documentation has begun. I took two larger splits of red oak from outside in my wood shed(cut and split in may) and two medium sized splits from some maple I just cut last month and split yesterday. I split the oak in half to get a proper reading, 27-30% on four halves. The maple read 24-32%. I placed the six pieces in my basement. I will do another reading in two weeks.
Too bad we dont have access to Battenkillers information as he documented most of his findings in detail.
