Here are the plans that can be downloaded for free by clicking on these links: https://ibb.co/SyQKFjV https://ibb.co/CnD2BWN This is a model that I made, inspired by several finds made on the internet. I am not a stove builder, so this is only done by guesswork and based on some thoughts. I do not hold myself responsible in the event of an incident. Have your construction validated by professionals in the event of risky use (domestic). Regarding the construction, certain dimensions are adaptable according to the resources available (size of cans, glass, mold, etc.). However, there are still rules to follow. For example, the surface area of ​​the entrances and exits. I made a choice to have a smaller section inlet than the outlet (80*100 mm = 8000 mm^2 against Pi*R^2 = 12271 mm^2) which prevents the fumes from rising because they always go where the diameter is larger. It is necessary to make adjustments to the reduction of the conduit at the end of the combustion chamber because if the reduced section is too small, the fire will be smothered, which can cause the fumes to rise. But a minimum reduction is required to induce the vortex. Question of adjustments :) The refractory concrete must have a minimum thickness of 30 mm (40 mm is better) otherwise it will crack. Refractory concrete can be purchased in most DIY stores but you can make your own dosages with molten cement, vermiculite (found in stores) and chamotte (a type of crushed brick which is the aggregate, but more difficult to find). The horizontal wood inlet must be as inclined as possible to allow the branches to descend, but its height must be much lower than the internal chimney (about twice) otherwise the height difference is not sufficient for the fumes to be sucked up by the internal chimney. The shape of the air and wood inlets are rectangular because it is easier to recover the ashes and generally I find it more practical. The vitroceramic plate brings heat quickly into the home, which is pleasant to feel when it is cold and you want to heat the room quickly. But to keep a little more heat after the fire is out, you can put an insulating cover to keep the heat in the mass. As for the weight of the mass, the more there is, the more slowly the heat will be redistributed. Personally, I had a weight limit due to the construction of the dome on stilts. But the 200 L cans are not bad because you can have a more spacious bell (optimized transfer of calories) and a more substantial mass. My small stove weighs about 150 kg, which is already quite a bit. I did some thermodynamic calculations to estimate the duration of heat re-emitted and I calculated about 7 hours so it seems to work. I can find the calculations again when I have the opportunity. But the more mass there is, the more spacious the room can be or the longer the heating time. The distance between the top of the internal chimney and the ceramic hob is important because too far away, the hob will not heat enough to cook on it and too close, the gases will not have enough room to escape. The surface area of ​​the internal chimney must be equal to its perimeter multiplied by the necessary height. Generally speaking, you have to make sure that all the sections have the same surface area after combustion and that the gases do not see their output reduced. It may not be very clear said like that, but to put it simply, a gas will not like to pass through a smaller diameter. You can start from a slightly smaller input to go to a slightly larger output (as I was able to do and improve the draw) but the opposite is not possible. In short, I recommend reading the forums and sites mentioned because there is a whole science behind it and it is absolutely fascinating. The sites that particularly helped me are Peter van den Berg's on the Batch box and the practical guide of the Poelito which gives lots of tips (although the surface dimensions are not optimized). http://batchrocket.eu/fr/construction https://wiki.lowtechlab.org/wiki/Poel... Good luck with your construction, you only learn by doing! 0:00 Introduction 0:36 Operation 3:29 Construction 5:09 Ignition test 11:20 Sizing calculation 11:53 Conclusion and perspectives