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This book shows how to build a rocket mass heater, so you can enjoy overnight comfort from a brief evening fire.
This book shows how to build a rocket mass heater, so you can enjoy overnight comfort from a brief evening fire.
This book shows how to build a rocket mass heater, so you can enjoy overnight comfort from a brief evening fire.
901 backers pledged $46,219 to help bring this project to life.

Stretch #5: By Popular Demand, the Mysterious Manifold REVEALED

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Thanks for voting on our next stretch goal!  It was a close call, the winner was decided by just 2 votes.

Stretch Goal #5: Mysterious Manifolds for $42,000

Why does the transition from barrel to bench baffle so many builders? Most of us have no training to imagine invisible streams of buoyant fluids moving through dark, irregular voids.

The Mysterious Manifold digital download will give in-depth, illustrated, buildable examples of alternative manifolds: what works, what doesn't, and why.

  • - hand-formed cob manifolds
  • - brick "beehives"
  • - regular brick work (square, octagon)
  • - capping slabs for larger manifolds (stone, brick, refractory, adobe)
  • - metal variations
  • - manifold-in-a-box
  • - no-manifold options
  • - cleanout access
  • - pinch-points, air sealing, and other common problems

(The Builder's Guide already shows three simple, robust manifold styles: our steel liner method, and two brick options. The Mysterious Manifolds supplement will augment that coverage with solid, buildable options for those with special situations or skillsets.)

Brick manifold on a 6" heater project from 2010
Brick manifold on a 6" heater project from 2010

Q: Why $42,000 and not $40,000?

A: These other stretch goals have been going by REALLY fast.

And we could not resist the Hitchhiker's Guide to the Galaxy homage. In Douglas Adams' badly misnamed trilogy, the answer to "Life, the Universe, and Everything" is revealed to be "42." (It turns out we were not really clear on the question.)

We'll throw in one of Ernie's most delicious seafood recipes, to keep you going through that extra stretch.

Thanks, everyone, for helping our first Kickstarter go so spectacularly, improbably well.

Yours,

Ernie and Erica

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Dare we leak another ambitious stretch goal before we've fairly gotten started on this one?

The next closest candidates on our straw poll involve kitchens or wood cook stove projects, with rockety-clean innovation.  Do we focus on one buildable prototype, or give a tour of many promising, multi-functional designs?  


Cast your vote before our next announcement:  http://permies.com/t/55192/

Bryan Nichols, gerald leclair, and 3 more people like this update.

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