It's a more efficient but still simple design thanks to a really helpful online manual around the basic principles of rocket stove design which can be found here.
And has tidier craftsmanship seeing as Danny built it, & not me this time, & it's even properly insulated thanks to a sack of vermiculite.
It really is a great feeling to have hot water at our fingertips, -for free!! & without using quantities of firewood or turf.
In fact, we have been cutting & bundling all of the small twigs & 'brash' from this years coppicing, which I have been trying to find a use for for ages, it will be nice & dry by the warmer months (!!) when we'll be using the rocket stove for most of our cooking outside. Meanwhile, the bigger logs from the coppicing will be drying out ready for keeping us warm next winter.
We are responding at an appropriate scale to our needs (cooking food & boiling water in particular) & intercepting a cycle of waste (the cans, piping & waste wood) by turning it into something which actually creates a resource (heat).
Not only that but it's a really efficient use of these waste products, we are even thrifty with our waste! You wouldn't believe how little wood can boil the kettle in such a short time. I'm pretty sure it can rival the electric kettle, We will document some comparisons soon....