Hello from Bulgaria, back in 2017 I found permies and became absolute fan of the rocket stoves. I wasn't the first one - two of my compatriots had started a small production of portable rockets named Gamera. Funny but I've read comment that they borrowed the plans from here. They weren't hiding at all and it seemed that the cause was worth it. For me that was a life changer. I've just looked at the Liberator clip suggested here and see that the design used both by locals and in US sticks to the barrel shape but my idea was to make the rocket stove as flat as possible. Took me four years to produce first design and for second season we are using the final version of Chimneything (English is not my mother tongue so I thought this is meaningless name but yesterday the batch box inventor used it). I will put links for those who are keen to have a look at the website I've been building from last June but here are the statistics of this stove's capabilities: average wood consuption - 0.9-1,2kg/h, 27 litre fuel hopper/bunker providing for up to 10kg of wood depending on density, more than 12 hours work without refuel keeping hottest spot (at the top) between 100 and 250oC while cooler parts are about 60-75oC, production of 140 liter hot water 60-65C and heating about 55 sq.m. space. What makes me happy the most is that I don't have to feed it so frequently compared to the Liberator and local Gamera. The "secret" is in placing the hopper entirely inside the stove which provides for pre-heating of the thick logs. Indeed kindlings are used for starting but on second and third row we can place bigger logs which saves a lot of splitting. And the other thing appears to be the minimal footprint of just 0,18sq.m. which suits to the premises here in BG. Here is a link to time-lapse clip of the 12 hour work I've made at the end of February 2024 with the prototype working at our kitchen while the final version can be seen on the website.
The site is
https://chimneything.com/en/
Best,
Michael
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