[Stoves] Swan-stove, HoleyRoket stove, JED Guinto

[Crispin Pemberton-Pigott]

Dear Jed

This is a really inspiring collection of stoves, several with strong local
and specialised functions. 

http://holeyroket.files.wordpress.com/2011/11/the-stoves-prototype-developme
nt-project-pdf-version.pdf

Given the range of items you are working on I really suggest you get a
combustion analyser or at least an O2 meter so you can work out what your
excess air level is. It is clear you would be able to incorporate the
knowledge into the design process with all those groups.

A combustion analyser is unfortunately an expensive thing to maintain even
if someone gives you one so you have to be practical. If you can get or make
an O2 meter using car parts and a digital display it will not wear out.
There is an O2 detector in every exhaust manifold. There are ways to hook
them to a display (like a microvolt meter) that you can convert to an O2
level.

You stick it in the gap where the fire exhausts past the pot and it will
tell you the EA. If you only have access to one measurement, that is what to
go for.

Regards
Crispin