[Stoves] corn cobs and char?

[Tom Miles]

It seems to me that we have seen cobs burned with wood fuels in stoves for
several years, especially in Latin America.  

A challenge with crop residues is that they have enough air in the stalks,
cobs and stems to barely support combustion so they tend to smolder rather
than burn. A little wood provides enough of a pilot flame to keep the
combustible gases ignited.  

Tom