Due to it being winter, and my room being freezing, I've been looking at various heating methods. Although I can't really put a rocket stove in my room, I want to build one anyway, as they would appear to be really sweet, and the ability to very efficiently create heat energy focused on a stove top creates oppertunites for many fun. I'm thinking heat pumps, peltier power generation, steam generation... So, I want to have a rocket stove built by the end of the week based on the standard 44 gallon drum model. Here you can see a horizontal cross section sketch, top down sketch and a larger horizontal diagram showing preliminary dimentions:

4 Aug 14:

Got two 44 gallon drums today cos they were so affordable, A$17 each!

6 Aug 14:

Yesterday I was able to source some 190mm diameter cardboard tube for free, which will make a perfect vertical burn tube size. Today I'm drawing up the dimentions for the concrete mould, and I found out I can get a 25kg bag of high temperature cement for $40, which should hopefully be enough for the jawb.

Now to make the mould dimentions, and get it made.

So the base of the mould is 2 sheets of ply thick, then theres a bunch of stuff going on ontop of that.
All these cut offs will go on the bottom, to create an air gap for thermal insulation on the bottom.