A rocket stove is a simple wood fired stove that is used in many third world countrys where fuel is scarce, it also burns the wood so well that there is little smoke.
U-tube link attached , this kid has a pretty good design though you have to clean out the ashes from time to time. they ar cheap to make though you can buy one for around 100 bucks that has the bells and whistles. Search on "Stovetec" for one . Some burn charcoal with a cast iron grate. Anthacite? May be hard to start....http://www.youtube.com/watch?v=PeKcb-Fw-bo
Try e-bay as well, there are some small manuf that are making them out of steel.
Great for camping from a car, etc, a bit tuff to backpack, though if the power were to go off and all the propane was gone,this sTove can be your pal.
Jimd, I bet your house could make them!!!!