"All the information you will need for understanding coal burning stoves."
Charcoal being the residue of the pyrolysis of wood after the release of moisture and gases, it is capable of generating much higher temperatures and hence constitutes the ideal fuel for cook stoves. 
And while charcoal or coal can actually be generated through burning wood, coal fuel is generally sourced from the natural coal reserves around the world, which are expected to last another 300 years.
Coal burning stoves necessarily differ from wood cook stoves, in as much as coal burning stoves are much more compact as compared to wood burning cook stoves due to obvious reasons, wood often being bulky and cumbersome requiring larger burning/ furnace area.
Predominantly used for grilling, charcoal is the common choice of fuel in outdoor coal burning stoves particularly because the searing hot flames, indispensable for grilling meat and other items, are quite impossible without charcoal, which is also considered indispensable in awakening aromas in the meat through smoking or indirect cooking.
Coal burning stoves have been in existence for ages and some of the vintage coal stoves are masterpieces commanding high prices in the antique market. However when proposing to use old coal stoves or vintage coal stoves, it must necessarily be restored to meet standards currently enforced by the EPA ( environment protection agency ) and other U.S governmental bodies.
However, in comparison to wood burning cook stoves, it may not necessarily require catalytic combustors since this is mainly meant to increase the combustion of the gases released by wood in the second burning stage, coal being the residue of the combustion of wood, and constituting the third phase in burning.
However, since the further break down of coal potentially releases carbon monoxide, attention may be required to redesigning the chimney or venting systems to ensure the proper flow of convection currents and prevent any smoke spill into the room itself or otherwise convert or harness these gases into inert or non toxic compounds through facilitating the right chemical reactions.
