[Stoves] A wisdom of Rebecca's stove

[Crispin Pemberton-Pigott]

Dear Friends

 

Here is a typical 'commercial' Keren stove in use at the market in
Yogyakarta. The stove is expected to have a short life (a few weeks) and
they break catastrophically, meaning they drop the pot. So this picture
shows how the problem is dealt with: add a frame to hold the pot and place
the stove under it. It lasts a lot longer.

 

The stove Philippine stove Rebecca is promoting uses a similar strategy: the
hottest and most likely-to-fail component is the combustion chamber and the
pot does not sit on it. There is an outer shell that is subject to far less
stress and the pot sits on that instead. 

 

As a construction principle it is a good approach and can be done much
cheaper than the steel version. Commercial cookers will still probably
invest in the steel frame, but there are other advantages to the
double-walled construction, primarily it offers the possibility of using the
space to create hot secondary air.

 

Regards

Crispin

 

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