Watching my copy of Sneaky Heat just now (great job on those by the way, they are fantastic) animated Paul pops up and tells people that for more information on the shippable core go to www.richsoil.com\stoves but I didn't see anything about it there.
So I take a quick look on permies to see if there is any other info on the link or the core and it seems like the last mentions of the shippable core are from March and April.
Is there a different link for more info? Did I overlook it on the richsoil page? Has this part of the research been tabled or delayed?
I'll hold off on my (probably foolish) laymen's design and layout questions, but I am curious about how that test system has held up since the workshop and if the higher heat of the core caused any difficulty.
There's been some continued work, most notably in Paul's recent Montana workshops.
Unfortunately the prototype from the 2012 workshop has not been used very much, so we can't say much about its long-term performance.
We tried out 4 new designs in Montana this past October, and are going back to play with some other variations this coming week.
Keep an eye on his homestead updates, if you're interested, or get on the daily-ish email. (You can always filter for certain keywords if you don't need daily-ish updates on permaculture in general).
Thanks for the feedback Erica. I love the work you guys are doing.
Did you originally cast the refractory core yourself or is the material hard enough to work with that it had to be cast for you by a professional? Selling and shipping the pour molds for the core and the material separately (direct from the supplier) might be a way to expand into more testing and easier shipping.
Something built out of wood or cardboard, just enough structure to support the cure of the core which would burn out on initial firing?
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