I found this article from The Irish Woodturners Guild on another site and thougtht I might share it.... I wish I knew what site had it.. but it has been on my system for a couple of months and I forgot I had it... Once it opens just do a "Save As" to keep it on your hard drive...
http://www.myfavoritepen.com/kiln.pdf
http://www.myfavoritepen.com/kiln.pdf