Rocket Stove - Save Money on Heating

This looks like a really cool DIY project that I will be getting into someday. A little background info from wiki

"A rocket stove is signified by ease of construction and simplicity of building materials while accepting small-diameter fuel such as twigs or small branches, yielding high combustion efficiency and directing the resultant heat onto a small area."

 So in other words, you can heat small amounts of wood and get maximum combustion and turn that into radiant heat according to iwilltry.org.

Savings

"On average the heat energy available from burning wood is around 4.5 kWh per kg (assuming a 20% moisture content). Assuming roughly 80% efficiency of the stove (just a rough guess) the heat extracted will be about 3.5 kWh per kg. I heat my home with electricity that costs about $0.07 per kWh. Therefore, the heating value of my scrap wood is about $0.25 per kg and by burning about 20kg per week I save about $5 per week on heating costs or about 50% of my heating bill for this time of year. Savings will be much greater in winter when the stove can be operated more frequently without the room becoming uncomfortably hot."

So there you go cheap efficient heating; for further info check out these sites and videos:

http://www.iwilltry.org/b/build-a-rocket-stove-for-home-heating/

http://www.viddler.com/explore/undercurrents/videos/49/

http://ilovecob.com/archive/tag/rocket-stove 

Mike