[Stoves] newcomers

[Crispin Pemberton-Pigott]

Dear Cornelio

I agree with your approach.  I found the most effective way to talk about
air supply, esp the secondary air and the important of limiting excess air
to increase thermal efficiency, is to talk for a short time with a
blackboard, then to light a representative stove and watch the fire.

As the discussion progresses, the technologies can get more complex and the
fire better understood.

I think that can be done on the website with one page chats and pictures,
followed by a short movie demonstrating what is being talked about.

A major problem faced with artisanal production of stoves is design drift
and if the artisan knows why things are the way they are, they are not
likely to produce functional stoves.

Regards
Crispin