Rocket Stove made with light weight ceramic refractory, Safedrinkingwater.blogspot.com, Rusty Shuping, Appropriate Technology Blog February 2006
I had some refractory cement left over from another project so I decided to try out a rocket stove. It worked well. I need to add a better wood support and a shield to go around the pot.
This material is rated 2500 degrees F so it should hold up for a very long time.
This is the same material used in high temp ovens and weighs roughly half of the heavier