Lots of free plans for solar powered wood drying kilns to reduce the moisture content of wood.
Can be used for both seasoning lumber and drying firewood.
Virginia Tech Solar Kiln
A Look at Mother�s Solar Wood-Drying Kiln
Mother Earth News
Mother's Solar Wood-Drying Kiln - Parts 1 and 2
Mother Earth News Article, Issues 89 and 90, Sept 84
A Homemade Solar Lumber Kiln
Edward A. Fassig
Mother Earth News
A solar wood drying kiln in which the entire front glazed area lifts up for access.
A good circular on drying firewood with a fairly detailed description of an easy to build solar wood dryer.
Testing of this dryer showed that is greatly shortened drying time.
