[Stoves] Improved 3-stone stoves

[K McLean]

Dear Graham,

The best I can do is tell you the cooking hole works.  Smarter people can
tell you why

The cooking hole was something of an accidental discovery.  We were working
with the top down burn of crop waste, which works wonderfully.

I wanted to try the top down burn in a three stone cookstove but there is
little room under the cookpot.  So we dug a hole for the fuel.  I was not
optimistic but it worked - very well.

Kevin

On Wed, Jun 22, 2022, 11:53 AM Graham Knight <biodesigndiy at gmail.com> wrote:

> Dear Stovers,
>
> I am much puzzled by the correspondence concerning digging a hole, etc.
> under a 3-stone stove!!
> If you put fuel into a hole it will certainly burn more slowly with the
> restricted combustion air.
> It will therefore give less heat per minute to the cooking pot.
> How long for the pot to come to the boil, if ever?
>
> Graham Knight
> biodesign20.co.uk
>
>
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