Het BobMac,
Read this. Really really read this 1945 Finnish publication JanA put up. And study this.
My hope is this will cause you to re-think this barrel-in-barrel idea.
I set up the three barrels back in ~2008 before I met Ben Peterson. The three barrel idea would have even worked. Kindda’ sorta. Been heavy. Demanded super pre-dried wood. Been a rusting pin-holeing PITA by the 3rd, 4th season. Too damn expensive to do in SS nesting barrels. $750 + $500 + $350 for the new SS barrels.
So a bit puzzling why you want to go backwards from your trucks WK?
And make a system far too big and heavy for your Suburu projects car?
I thought that was to be a charcoal system?
Bob most of the time old heavy iron as in this original WK hearth tube needs to be retired out as a yard ornament.
In truth cut up boned out to unrecognizable scrap like BenP and Jodi recently did is the only safe way.
BenP sold, moving on with his life from wood gasification; one of his early historic saved back first years systems. His carbon steel ~2007 year Woody unit.
NOW the owner put it up on youtube as inadequate needing modification improvement to function. He really, really regrets ever letting that early ideas system out of his control. He shoulda’ just scapped it. Now moved on he DID scrap out all others.
Clessie Cummins the Cummins engines originator to win at the Indianapolis 500 used a diesel 2-stroke and a 4-stroke entry. The 2-stroke was made up to give the gotta’-try guys in his organization a bone. It was the 2-stroke that won in it’s class.
But he knew that true useable working diesel would long term be 4-stroke. Fuel economy. Less maintenances. He had that 2-stroke dumped into a deep dark river to disappear from his company’s history. A latter competitive Indy500 4-stroke was what was displayed for years in the companies lobby.
Ha! Ha! Mr Wayne proves to be a real Use-It-Up, Wear-It-Out kinnda’ guy. Not a spit and polish History preservationist.
S.U.