Jim 63 Retired Engineer(civil, mechanical, construction) Missouri Ozarks Wife and I have two adult sons, one old dog, and one ornery cat. Have a stove for backup and burning down/dead trees off my small patch of rocks. Solar fraction for my system in the works is about 6/10. Trying to figure an economical way to use wood for the other 4/10. Thanks for this site and for sharing your knowledge.