[Stoves] Re: Improving longevity of steel stoves; Chiwicla-lining

[Crispin at newdawn.sz]

Dear Harmon

>    Ah, this reminds me of another thing -- is anyone here familiar
>with the concept of creating "artificial coral" using hardware cloth
>or chicken wire placed in sea water and fed an electric current?

There is a guy in Ireland claiming a world wide patent on the process. 
People are building 'coral' reefs with old cars hooked together and fed by 
solar panels.  In Dominica you can buy a wire dolphin coated with linestone 
produced by villagers in the same way.

The technique was used many years ago (undermining any patent applications) 
for encasing pipes that flowed into the sea from sewage treatment works. 
They would put a steel pipe into the water and hook DC power to it to ward 
off rust and it coated the pipes in a layer of precipitated calcium 
carbonate (limestone).  Eventually the artificial coral became the pipe.

At the World Summit for Small Island Developing States (SIDS) held in 
Barbados in 1994 a presentation was made on this showing the afforementioned 
reefs and dikes.  The guy showed me an extremely hard piece that was 
slow-grown and gave me a small chunk.  It has a chicken wire core and is the 
density of marble.

You can make stove components using sea water and electricity, and lots of 
other things I suppose.  If you use a higher power (more current, not 
voltage) it builds rapidly and lighter in mass.  This is insulative, however 
it will not take very high temperatures, in the same way cement products are 
not very durable at high heat.  It is OK for lower temperature parts.

If you live on an island without clay or cement, it is one method of making 
strong 3-D objects using solar electric power only.

Regards
Crispin



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