Finally......a dedicated site!!!!!
Kudos to whomever thought this up.
I'm from a suburb of Chicago, and I just about have my furnace ready to go.......need a few misc. parts and I should be making some smoke (hopefully not LOL).....
Based off the mother earth news version.....except I used two 30 gallon air compressor tanks cut the ends off both, and welded them back together. 1/8 steel should hold some pretty good heat I hope.