Raven; Morning Sir! In case your wondering, yes I have a day job, been out sick all week.Maybe thats why some of my posts are less then cogent/succinct (though there are people that will tell you that I'm not cogent or succinct on my best days). Re:. Mors Kochanski (www.karamat.com) wrote Bushcraft. Considered to be the preeminent sub-arborial wilderness living skills instructor. In his winter class, he teaches you how to be warn at 40-50 below(?) in a self made structure with a fire without a sleeping bag. The fiires are 6' long and burn 24-7. You don't do much but gather fule for this beast and after the fule is gone ya got to move. Ok for a night or two or three but I'd realy like to have or make some sort of wood burning stove. Much more efficient in terms of both heat production and fule consumption ( www.fourdog.com) Visit the site and read the book, good stuff. Thanks, Jim