Corbell Cobs

To make the arch over the windows and doors, we need to use super strong fiber straps made of sticky clay and straw. The arches distribute the weight of the wall evenly over the openings.

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Corbells
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Grab a handful o' straw, all facing the same direction.
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Spread it out in one thin layer.
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I scooped out clay directly from the slaking bin.
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Spread it all out over the straw.
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Rollout up and squash and squish and squish it.
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Slather the outside of it liberally with gooey clay.
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And, Taadaa! Super strong corbell cob for arches and shelves!

Rocket Stove: The Thermal Battery

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Urbanite & Cob Bench

The Thermal Battery building has begun! That is, the cob and “urbanite” (repurposed chunks of sidewalk etc.) bench and bed the exhaust pipe is buried in. It will hold the heat and slowly release it back into the room.

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More bench added
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Bare pipe and piles of urbanite
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Nathan made an impression.
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Pipe exiting through the wall will not be visible after the bed is built.
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Robin, racing through the steam. Yes, only steam!

Rocket Stove, Go!

Part 3: Insulation and the Barrel

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Insulation: perlite & clay slip
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Pour insulation between stack and hardware mesh.
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Burn the paint off the barrel.

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Up-end barrel on stack.

Under that slab of marble is the manifold. It’s a space between the bottom of the barrel and the first length of stovepipe.

Here is a better picture. And another. From people who did a better job of remembering to take photos.

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The feed (fire box)
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Stovepipe snaking through future cob furniture
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A "tee" in the pipe for ash clean out

I left for the day and returned to a blazing fire in the cob house! Pah!