Crispin Pemberton-Pigott, New Dawn Engineering, Swaziland, June 12, 2006

3 Laterit and Charcoal Dust3 Laterit and Charcoal Dust

Dear Friends

I fired two of the rings today for a brief time, perhaps 3 hours at temperature. No particular care was taken regarding the slow initial temperature rise.

The mass production of insulated bricks for Six Bricks Rocket Stoves means that there are many broken bricks. Everyone wants these broken bricks.

The Sprocket Rocket was the idea and creation of Mary, one of our stove promoters and teachers. Seated here on the right she is demonstrating how to wire together SixBricks.

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The half bricks are wired together in the same fashion.

Some people use insulated bricks only for the top half.files/images/sprocket5_0.jpg

Here is a top view showing the sprocket sitting on three stones with six insulated half bricks on top of the sprocket. I

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Charcoal burning in the Sprocket Rocket.

Like the SixBricks Rocket Stove, the owner can finish her stove any way she likes.

The Sprocket Rocket (pdf) (Uganda)
Ken Goyer June 4, 2006

Ken Goyer describes the "sprocket rocket" charcoal stove and its use in Uganda.

This is a bicycle sprocket. I was visiting a camp near Lira and this woman came along holding this sprocket. She said that she was planning to make a Sprocket Rocket and that she had paid 1000 shillings (about 54 cents) for it.

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