A rocket furnace is not only a convenient heating device, but also cooking equipment that runs on solid fuel. The parameters of this unit are good, but not exclusive. The popularity of the device can be explained not only by a memorable name, but also by the fact that you can do the oven yourself. To do this, it is not necessary to have the skills of a mason.
You will spend no more than 20 minutes on the work. You do not have to resort to the construction of an expensive and bulky stove. The very principle of the device of the described equipment gives freedom to the master, who can show his abilities as a designer.
Features of the manufacture of stoves with stove bench
A rocket furnace is good in that it can be given a variety of sizes. But for the manufacture using materials that can only be found in the barn, it can be:
- gas cylinders;
- barrels;
- metal pipes;
- clay;
- bricks.
The option can be combined. In this case, the structure will consist of stones, pipes, clay and sand. This solution is the most attractive. For example, from a gas cylinder, you can make a simple stove, which will have a stove bench. The system will consist of a blower, a fuel chamber, a channel for supplying secondary air, a flame tube and a primary chimney.
Too short or long flame tube should not be done. If the length of this element is too impressive, then the secondary air will not maintain a high temperature, and the pyrolysis gases will not be burned to the end. The design of the heat assembly and riser must be well insulated. This unit performs the task expressed in ensuring the combustion of pyrolysis gases.
In order to achieve the optimum efficiency, the diameter of the riser must be done within 70 mm. If you want to get a furnace with high power, then this parameter should be 100 mm. The length of the flame tube is best done within 150 mm.
Methodology
If the do-it-yourself oven-rocket will be manufactured, then first you need to prepare the lining compounds. Saman is clay mixed with straw and combined with water. But that is not all. You will also need oven clay, to which rubble should be added. What is the feature? As for the heat-resistant lining, it is made of fireclay sand and furnace clay, mixed in equal proportions.
At the next stage, you can make a bed for a rocket stove with your own hands, drawings made in advance will help you with this. The bed will be a shield, and the frame is made of square beam with a side of 100 mm. The frame should be sheathed with a board with a cross section of 40 mm. Further on the floor in the place where the furnace will be located, mineral cardboard should be laid. Its thickness should be 4 mm. Then the bed is transferred to a place near the stove. The frame must be stable. At the end of the bed, above the bed, it is necessary to arrange a hole in the wall for the chimney.
Work on the body
When a do-it-yourself rocket stove is made, drawings must be prepared. They are presented in the article. The formwork should be installed around the perimeter of the bed. An adobe is poured into it, the surface is leveled, and beacons will determine the sides of the formwork. While the fill will dry, which will take about 3 weeks, you can do the manufacturing of the case.
According to the same algorithm, a barrel structure is made. From an empty cylinder, the upper part must be cut off. This will allow you to get a hole with a diameter of 220 mm. It should be closed with steel round. This surface will serve as a hob. Below it, another cut is made to get a lid.
Doing a rocket furnace with your own hands, the drawings must be guided. They will allow you to understand where the so-called skirt will be located. It should be welded around the perimeter of the lid, made of thin sheet steel. The width of the skirt should be approximately 60 mm. Along the entire circumference of the skirt with a deviation from the edge of 25 mm, it is necessary to drill holes where the bolts will be screwed. Now the lower empty part of the cylinder is cut off. Holes for the riser are cut out at the bottom.
Final work
On the inner edge of the lid with the help of the “Moment” glue it is necessary to fix the cord. It should be made of asbestos material. The cap is put on the cylinder body; The cord will act as a sealing gasket. Then it is necessary to measure the depth of the body to determine the height of the riser.
In the process of work, it will also be necessary to complete the furnace part. The angle of insertion into the blower pipe can vary up to 60 °. Doing a rocket oven with your own hands, drawings should be made in great detail. They will make it possible to understand that in the lower part of the flame tube it is necessary to separate the secondary air channel. This can be done using a metal plate. At the end of the flame tube, holes are cut into which the riser is welded.
Conclusion
Drawings of the rocket furnace are proposed in the article. However, you can fulfill yours, because the design can have completely different sizes. Quite often they are determined by a gas cylinder, which forms the basis.