Holidays outside the city, whether it is a summer cottage or a picturesque glade in the forest or near a pond, very often involves cooking barbecue. Of course, for this you can get by with a few bricks and a couple of metal crossbars, but the real pleasure of cooking meat on skewers can only be obtained next to a convenient and practical barbecue. A solid construction can be made from thick sheet metal. If there is no such thing on the farm, then you should not rush to the construction market. An excellent device for cooking meat can be built with your own hands from an ordinary gas cylinder.
Features of a brazier made on the basis of a tank for liquefied gas
Cylinder for domestic gas is an excellent basis for many improvised designs. Good solid metal, almost finished form and several standard sizes allow you to get a potbelly stove, boiler with minimal labor indirect heating, autoclave and other necessary equipment in the household. The thick walls of the liquefied gas tank are able to withstand high temperature, so it is the best suited for making a smokehouse, barbecue or barbecue. Other advantages of the design are also known:
A brazier built from a tank for household gas has practically no drawbacks. Some consider large dimensions to be a minus, but what prevents them from taking a smaller cylinder, for example, 27 liters? The negative aspects include perhaps the semicircular shape of the bottom, which is not very convenient during the ignition of firewood. On the other hand, with this configuration, the coals will be closer to the edges of the skewers. Due to this, the outer pieces of meat will be better baked, which, when cooked on a traditional rectangular roaster, often remain raw. Experts believe that the spherical walls of the brazier are not entirely suitable for cooking barbecue, as they interfere with processes that help the rich aroma of baked meat “open up”. In the future, we will touch on this issue, revealing the secret of how to avoid the disadvantages associated with round shape bottoms.
Preparatory activities
Before picking up a welding machine, you need to pick up a gas cylinder and prepare it for work, draw up a rough sketch of the future barbecue and stock up essential tool and materials.
Which bottle can be used
For the manufacture of brazier, any gas cylinders of a cylindrical shape are suitable. The best option is quite capacious and the most common 50-liter container for household propane-butane. If you want to get a more mobile and lightweight design that can be transported in the trunk of a car, you can take a standard 27-liter cylinder. It should be borne in mind that the width of the working space of a portable barbecue may not be enough due to the spherical shape of the sidewalls.
Gas cylinders are made of high-alloy low-carbon steels 30XMA, 45, 34CrMo4, 30XGSA. The high content of ligatures and the reduction in the amount of ligatures in the metal makes the alloy more durable and improves anti-corrosion properties.
An ideal option for a stationary barbecue would be a car gas cylinder of 50–80 liters. It has an increased diameter, so it will be much more convenient to kindle firewood. In addition, such a vessel has a high capacity. Its width makes it possible to use the entire length of a standard skewer, and this will allow you to cook dinner for a large company. The only caveat is that finding an unnecessary car gas tank will not be easy, and buying a new one will not be financially feasible.
Gas cylinders are made of high quality alloy steel with a thickness of 3 mm or more, so even if the container long time stood in the open, it is likely to be usable. If the vessel is very rusty, then you should not waste time on it - it will not be difficult to find a workpiece in good condition.
How to protect yourself from an explosion
Even if the valve of the used container is completely unscrewed and the gas does not come out of it, do not rush to take on the grinder. Despite the fact that inside the cylinder the pressure was equal to atmospheric pressure, most likely, unsafe substances remained in it - propane-butane and condensate. The latter is drained by turning the vessel upside down, and in order to completely remove the explosive contents, the cylinder is filled to the top with water and left for several hours. Only after this requirement is met and the liquid is drained, you can start cutting and welding metal.
Schemes and drawings
The brazier from a gas cylinder is such a simple structure that it does not require careful design. However, on preparatory stage it is recommended to draw up a small drawing or sketch of the future structure indicating the dimensions of all its elements. This will make it possible to determine how much and what kind of rolled metal will be required, and will also allow you to properly plan individual processes. Perhaps the drawings and diagrams presented in our gallery will help you in working on the barbecue.
Gallery of drawings and diagrams
Scheme of a brazier with a supporting structure 
Drawing of a brazier from a 50-liter gas cylinder 
The design of the brazier from a gas cylinder 
Scheme of the movement of heated air
Materials and tools necessary for work
In addition to the gas cylinder itself, you will need:
- pieces of steel pipes and corners;
- metal handles for the lid of the barbecue;
- door or furniture hinges;
- pipe with a diameter of 100 mm with a 90-degree elbow, if you plan to install a chimney;
- grill, which will be needed for barbecue;
- bolts with nuts or rivets.
In addition, you should prepare decorative elements designed to ennoble the structure, as well as a primer, paint and solvent that will be needed to paint it.
If we talk about tools, then we are sure that everyone who is interested in the issue of construction will find them. homemade barbecue:
- welding transformer or inverter;
- angle grinder - angle grinder (colloquially "Bulgarian");
- electrodes Ø3–4 mm;
- cutting and cleaning disc for angle grinder;
- electric drill;
- a set of drills for metal work;
- clamps for fixing metal parts;
- long metal ruler;
- scriber;
- core;
- adjustable and gas key;
- set of wrenches.
If, after manufacturing, the brazier will be painted, then additionally prepare a brush attachment for a drill or grinder, as well as brushes or a spray gun with a compressor.
Making a brazier with your own hands from a household gas cylinder of 50 liters
Installation work is best done in a well-ventilated area or outdoors. The place where the assembly will be performed must be fairly even, otherwise it will not be possible to ensure the correct geometry of the structure and the brazier will be unstable.
When carrying out locksmith work, it is important not to forget about the safety rules, be sure to use protective equipment and overalls.
Step-by-step instruction
- Unscrew the valve. To do this, use a gas or adjustable wrench. Sometimes the shut-off valves turn sour so much that there is no way to unscrew it. In this case, the tap can be cut off with an angle grinder. Using the same tool, they cut off the lower support rim - with it the design will look unaesthetic.
- Mark the cutting points. The diameter of the 50-liter propane-butane tank is 960 mm, which allows it to be accurately divided into four parts. It is convenient to take a longitudinal seam as a reference point. Having laid the cylinder on a flat surface, a quarter of the diameter - 240 mm is measured from the welding line in both directions and horizontal markings are applied, which will divide the cylinder in half. An indent of at least 30 mm is made from the attachment line of the upper and lower parts of the vessel, after which circular lines are drawn. The distance between them is divided into equal intervals of 80-100 mm, on which the skewers will be laid. After that, mark the lid of the barbecue. Its length should be less than half the diameter, so 100 mm are measured from one of the longitudinal lines towards the horizontal weld. A parallel drawn strip will indicate the place of the cut.
- Having installed a cutting disc on the "grinder", they cut a line that divides the diameter of the cylinder in two. After that, the slot is marked into equal parts and the loops are welded. Their number can be from two to four (depending on size). After that, the cover is cut out along the circular marks, as well as the longitudinal line, which is located at a distance of 140 mm from the horizontal seam.
Do not rush to cut the entire cover at once. Subsequently, this will entail a lot of inconvenience associated with its correct orientation, setting gaps, etc. It will be problematic to do this without an assistant. If the loops are immediately welded along the line of the first cut, then in the future it will be possible to save a lot of time and nerves.
- In order for the upper door to be held in the desired position and not to break the hinges when tilted, limiters must be welded along the cut line. You can make them from 20–30 mm pieces of a steel corner with a shelf width of 40–50 mm. Fixing stops are mounted on both sides - this will avoid distortion of the cover.
The distance at which the door will recline can be changed by unbending the latches to the desired angle. At the same time, a position is chosen in which it will be possible to easily reach the handles of the lid, without leaning forward much, and at the same time will not allow the structure to spontaneously slam shut.
- In order to prevent the door from falling inward when closing, a limiter must be welded around the perimeter of the circular cutouts. To do this, a strip 30–40 mm wide is cut out of sheet steel with a thickness of 1–3 mm. It is attached from the inside of the balloon with an interrupted seam.
Instead of limiters, you can use a piece of chain of the desired length, welding it with one end to the barbecue, and the other to the lid.
- Below the loops, a series of drillings Ø12–14 mm are made for skewers. Previously, these places were marked along the dividing line of the diameter. Slots or triangular cutouts are made on the front wall opposite each hole, on which skewers will be placed.
- Mount handles for opening the lid. For this, factory products with overlays made of wood or refractory composites are best suited - they will not allow you to get burned. IN last resort, the handle can be made by bending a piece of metal bar or reinforcement in the form of the letter "P".
- At the next stage, holes are cut in the bottom of the brazier for air to enter the combustion zone. To do this, the structure is turned over with the lid down, measured from the longitudinal seam 100-120 mm in each direction and horizontal lines are drawn. Setting aside 100 mm from these marks, strips are obtained, in which cuts are made every 50 mm. Drilling can be done instead of slots. In this case, holes with a diameter of 10–12 mm are made in a checkerboard pattern.
Cutting through the bottom for air supply is impractical for a number of reasons. Firstly, this will weaken the weld, which makes the structure more rigid, and secondly, the holes will quickly become clogged with fatty deposits mixed with ash and ash, and will cease to fulfill their functions.
- The hole for the valve must be welded. If the brazier is also planned to be used as a smokehouse, then the opening is expanded to the diameter of the chimney. After that, a chimney is welded to the cylinder.
On this, the main part of the work is considered completed. It remains to install the brazier on the legs and ennoble interesting decor or just paint the structure with heat-resistant paint.
Installation of supports for barbecue
There are several options for installing the brazier on legs, which is facilitated by the rather thick metal of its body. The first and easiest method is to weld four pieces of steel pipe or angle directly to the hull. Of course, the attachment points must be carefully verified, and in the process of work, use a square and a building level, otherwise the design will look crooked and untidy. Everyone makes the height of the brazier for themselves, but there is also a standard recommendation - the distance from the ground to the plane of laying the skewers should be no more than 1 m.
It is worth noting that the method described above cannot add presentability and convenience. If you want to get a stylish, practical structure, then for this you need to make a frame-type support. To do this, a pair of side racks is made from a profile metal pipe 20x20x2 mm. In its upper part, a semicircular bed is welded from a metal tire, curved in the shape of a cylinder. Between themselves, both parts of the structure are fixed with the same metal profile so that a kind of underframe is obtained. The balloon is placed on the prepared bed and tacked by welding. In order to make the brazier more mobile, metal wheels can be attached to the legs.
A brazier made from a household gas cylinder can be taken with you when outing into nature. In order for it not to take up much space in the trunk of a car, the supporting structure is made collapsible. All that is needed for this is a 40-centimeter piece of pipe with an internal diameter of 18-30 mm and a 3-meter pipe with a diameter of 16-28 mm. The main requirement is that when they are paired, the gap should be small, otherwise the brazier will be unstable.
By cutting a short piece into four equal parts, couplings are obtained, which are welded to the cylinder at the installation sites of the supports. After that, the brazier is installed on the legs and through drilling is performed to fix them inside the couplings. The pins inserted into these holes make it easy to carry the assembled structure - the tubes will not fall out. In addition to the sides of the portable brazier, carrying handles can be welded. By the way, during the transportation of the structure, all legs, firewood (or a package of coals) and ignition fluid can be placed inside. Such optimization will save a lot of space in the trunk.
Gallery of ready-made homemade barbecues
The side walls of the structure can be designed in the form of a funny pig 
Steam locomotive styling 
The support structure can be made from the old sewing machine 
Barbecue with bottom shelf and firewood box 
Styling the brazier under a submarine 
Shelf, located under the grill, will be very handy during cooking 
Universal building with barbecue, smokehouse and barbecue 
Additional work surfaces make the design more practical 
Is it still a brazier or already a steam locomotive?
How to bring the design to perfection
The ease of manufacture and other advantages of a brazier from a cylinder are somewhat overshadowed by the conclusions of barbecue experts that the meat in them is not as tasty as in traditional braziers. Careful examination of the problem revealed several failures.
- Due to the rounded bottom, the layer of coals in the center and along the edges differs in height. This heterogeneity leads to the fact that the firewood that is on the periphery burns out much longer than in the middle of the bookmark - the heat in the center settles much faster.
- The spherical walls emit infrared rays not towards the kebab, but towards the coals, which further enhances the effect described above.
- Unlike a flat-bottomed structure, the supply of oxygen to the brazier made from a round container is uneven.
It turned out to be quite simple to eliminate the shortcoming that did not allow to get the “right” barbecue. Refinement of the brazier requires the arrangement of a longitudinal duct along the entire length of its bottom. To do this, you need a steel corner with dimensions of 80 × 80 mm and a length of 900 mm. In both of its shelves, holes with a diameter of 12–15 mm are made in increments of 50 mm. The air duct is welded into the bottom so that both of its edges remain outside. The essence of the improvement is more clear from the presented figure.
How to paint to "cheap and forever"
A metal structure must be painted for both aesthetic and practical reasons. Unprotected steel will quickly rust, which will add neither beauty nor durability to the structure. Any heat-resistant paint intended for automobile mufflers is best suited for painting the brazier, however, its high price and complex application technology do not allow us to call this option ideal. Silicone-based paints, specially designed for painting metal stoves, fireplaces, barbecues and barbecues, have the same disadvantages.
Cheap and practical material is Kuzbass varnish and similar mineral compounds based on bituminous resins.
The coating should be carried out in 3-4 layers, with a complete intermediate drying after each application. Of course, there is no need to paint the inner surface of the brazier - a soot coating, on the contrary, will contribute to obtaining an ideal product.
The disadvantages of this method are a long drying time and unpleasant, toxic fumes. In addition, the paint remains fragile for a long time, therefore it requires careful handling. The first 2-3 fires are best done "idle". This will eliminate the smell, make the coating more durable and safe. When the mineral composition is sintered, it will be very difficult to damage it. Practice shows that such a composition does not require updating for decades.
Video: how to build a brazier from a gas cylinder in three hours
Many options for barbecues built on the basis of a gas cylinder allow you to build a practical, functional and original design. It can be placed under a canopy or in a gazebo, installed in the open air or made completely mobile. A properly built brazier gives a soft and even heat, which makes the kebab soft and juicy. Therefore, all that remains to be desired is good company and bon appetit!
A large company that has come to the country needs a solid brazier. Standard designs made of thin steel, offered in stores, are not suitable for this.
It is inconvenient to fry kebabs and steaks on a fire, placing them on bricks. Not everyone will dare to build a stationary barbecue structure with a stove and a roof.
After reflecting on this, the home craftsman comes to the conclusion that the best way- make a brazier from a gas cylinder with your own hands.
The thick walls of such a container will last more than one year. Its dimensions are optimal for laying out skewers. It is easy to choose the height according to your height so that during the cooking process you do not have to bend your back.
There are many varieties of braziers and smokehouses made from gas cylinders. Let's get acquainted with them and talk about how you can independently implement the option you like.
It all starts with cutting the balloon
Regardless of the design chosen, the first step in making a brazier is cutting an old propane tank with a capacity of 50 liters. We do not recommend immediately rushing at him with a grinder. In this case, you must follow the safety rules. Residues of gas contained in each container may explode on contact with sparks and air.
Therefore, you first have to manually unscrew the tap. Removing the fitting on an old cylinder is not always an easy operation, since it “sticks” firmly to the body. You can try to move it with an open-end wrench by hitting the handle with a hammer.
If the tap does not give in, then use another tool - an adjustable water wrench and steel pipe as a lever.
Under the influence of such a powerful force, any thread gives up. In order to prevent the container from turning, on the other hand, a stop corner is attached to its bottom.
To facilitate unscrewing, you can apply "Vedeshku" to the place of contact of the tap with the body and wait a couple of hours until the thread sags.
After that, the container is slowly filled with water. It displaces a combustible gas-air mixture, eliminating the risk of an explosion when cutting.
After that, the water is not drained, but the tap is put in place and the body is marked out.
There is a long seam on one side of the cylinder body. It will be a "beacon" for the first cut line. The second line is drawn on the other side so that it is opposite the first one and recede from it upwards by 8 cm. This will be the second cut line. If you do not make such an amendment, then the brazier will turn out shallow.
Having made the markup according to the drawing, they take the grinder and cut through the walls, separating part of the body. It will be used as a flip cover.
An important nuance! Cut the body carefully next to the seam so as not to damage the steel ring that is under it. It will serve as a stop for the lid so that it does not fall into the brazier.
In the lower photo on the left side of the container you can see the ring. If the master had passed the grinder next to the seam, then it would have remained in place and served as an emphasis. Correcting the mistake made is easy: you need to weld steel strips on top of the lid.
The next step is to remove the fitting. It is cut flush with the body.
Burrs are removed with a grinding wheel.
The further order of work depends on how you intend to use the brazier: only for frying or combine it with a smokehouse. We will consider these operations after reviewing the finished structures.
Examples of barbecues from gas cylinders
The easiest way to turn a gas container into a brazier is to cut it in half, drill air holes in the sides and weld four legs to the bottom.
We divide the balloon in half and get two braziers
The most popular option among craftsmen is cutting out the sidewall of the case and turning it into a door. It will help keep the coals hot longer when frying.
For ease of transportation, two legs must be equipped with wheels, and the third one should be used as a stop. The transport handle can be made longer and a plate for dishes and seasonings can be fixed on it.
The best brazier bed comes from an old sewing machine bed. It lowers the center of gravity of the structure, preventing it from tipping over.
Forged decor and side smoke pipe improve appearance and functionality of the grill.
Having made a smoke umbrella over the brazier, two tables on the sides and planting it on bent steel legs, we will get a more solid structure. There is no special need for an additional canopy, however, its presence improves the appearance.
Our review continues with a home-made brazier smokehouse from gas cylinders. It is a combination of two containers: 50 liters and 20 liters. The smaller one is placed below the main one, connected to it through a small window and used as a smoke generator. To improve draft, the chimney is made higher.
A more advanced option is to install a third vertical tank. It hangs products for cold smoking. The total capacity of this design is sufficient to prepare meat and fish delicacies in reserve.
Occupying a place of honor on the site, the brazier becomes the subject of general attention. Knowing this, many craftsmen decorate it according to their imagination.
The most popular option is the design in the form of a steam locomotive. The fire and smoke emanating from the brazier fit perfectly into this image.
The smoke generator can be placed crosswise in the "driver's compartment", or it can be naturally incorporated into the overall locomotive design.
The streamlined shape of the tank is reminiscent of a submarine. Present to your attention interesting example implementation of such an idea.
To one master, the gas container reminded an underwater ship, and to another, an association with a pig came to mind. To embody it in metal is not difficult.
Having become acquainted with the samples of folk "mangalo-creation", let's move on to considering the practical issue of how to make a barbecue from a gas cylinder and a smokehouse based on it with your own hands.
Step-by-step instruction
We described the initial operations for marking and cutting the balloon at the beginning of the article. Now we will supplement our instructions with photographs and explain further steps.
It is more convenient to weld the hinges to the body of the brazier until the lid is separated by cutting a line on reverse side corps. In this case, they will fall into place without distortions. On the other side, a steel bar handle is welded to the lid.
If you do not put a limiter on the side of the hinges, then the door will fall back when opened and it will be inconvenient to get it out. As stops, you can use a short cut of the corner, welding it in the middle between the loops.
Blower holes can be drilled, but it is easier to make them with a grinder in the form of vertical slots.
To install skewers on the ribs of the brazier, triangular cutouts are made or holes are drilled in the body in increments of 5-7 cm.
Barbecue legs can be made in two ways:
- "In a simple way" from pieces of reinforcement or pipes, welding them to the bottom;
- Making a stand out of profile pipes and a bent strip on which the balloon will lie.
Close the lid to speed up the frying process. In this case, to remove smoke at the end of the container, you will have to make a hole and weld a pipe into it.
The brazier-smoking shed differs from the usual brazier in the presence of a smoke-generating compartment. For this purpose, a cylinder of 20 liters is most often used. Having outlined a hole for passing smoke, it is cut out with a grinder.
The same operation is done with a large capacity. After that, they are joined by welding. A large balloon is placed on legs.
Having drawn the contours of the covers, they are cut out of the cases and put on hinges. At the end of a large capacity, a hole is made for the chimney and welded in.
Inside the cylinders, shelves are made from a corner and gratings of thick wire are placed on them. At the back, holes are drilled in the smoke generator housing and a rotary damper is installed to adjust the draft. A similar damper is attached to the pipe.
Experts strongly advise to put a temperature sensor on the body of the main chamber (upper limit of measurement +350 C). It will help to precisely control the smoking process and get products of excellent quality.
Finishes painting the structure with a heat-resistant composition.
My name is Rostislav, I am 37 years old and I am a builder with twelve years of experience. Today we will talk with you about outdoor recreation. And nature, as you know, is friends, family and barbecue. To cook meat in nature, you can use all sorts of improvised means - bricks or sticks, or you can make a beautiful brazier from a barbecue gas cylinder with your own hands and surprise everyone. If such a brazier will stand in the yard, then it will immediately attract the attention of your guests and neighbors. Also, such a brazier is compact enough to take it with you in the trunk of a car.
Making a brazier with your own hands will not take much time and labor, you just need to be able to use a grinder and welding machine or ask a specialist. All photos and drawings of such a brazier from a gas cylinder are attached.
So what do we need for this:
Materials:
- Gas bottle.
- Pipe, diameter 90mm. Length - 0.7m
- Handles, 3 pcs.
- Profile pipe, 30x30mm. Length - 4m
- Corner, 40mm shelf. Length - 1m
- Sheet metal, 2mm thick, 1m2
- Fungus on the pipe.
- Sheds.
- Priming. Enamel paint for metal.
- The paint is heat-resistant, the temperature of use is up to 600 degrees.
- Chain, length no more than 0.7m
Instruments:
- Welding machine, electrodes.
- Bulgarian, cutting discs and cleaning disc.
- Roulette
- Pencil.
- Hacksaw for metal.
- Drill, drill bit 4,8,10,12mm.
- Gloves, goggles, welding mask.
- Piece of chalk.
- Clamp clamp.
- Square.
So: Let's get to work.
To start the robots, we need an empty gas cylinder with a capacity of 50 liters. Such cylinders were previously used on the farm in the private sector. It consists of three parts: a valve, a reservoir tank and a cylindrical stand.
Marking the gas cylinder for barbecue
A gas cylinder, even if it is empty, is VERY DANGEROUS, therefore it is strictly forbidden to use open fire near the cylinder, as well as to cause mechanical damage. It could cost your LIFE!!!
The point is that in the admixture natural gas use the so-called gasoline, which is designed to distinguish the smell of gas. Gasoline, in itself, is the same combustible gas that is absorbed into the metal, and even if the cylinder is empty during the test, gasoline vapors are still present in it. Therefore, I repeat once again, you need to work with a gas cylinder very carefully, without neglecting the safety rules.
Let's get back to our markup. If you look at the cylinder, you can see that a welding seam runs along its entire height. We take this seam as the first line of the beginning of our markup. If you take a tape measure and measure the circumference of the balloon ( circumference - this is the extension of the outer or inner line of the circle.) it will be equal to 96 cm. From this line - the seam, with the help of a tape measure we mark 24 cm in each direction. We put marks at the top and bottom of the balloon and draw a line with chalk. Then we retreat from this seam line in each direction by 10 cm. and also draw a line with chalk - this is our line for the air supply holes.
Next stage: we determine where we will have the front side of the brazier and add to the back line that we marked, retreating 24 cm another 10 cm. This will be our cut line. There are also welded seams on the bottom and top of the cylinder, which go around the circle of the cylinder. The distance between them is standard 61 cm. We retreat from these seams 3 cm, put two points each and draw a line. The fact is that in the middle of the cylinder along the circumferential seams there is a seam reinforcement tape and we need not to damage it.
Thus, we have drawn a cover for the future barbecue, the width of which will be 38 cm (96-24-24-10), and the length - 55 cm (61-3-3) as indicated in the drawing.
Preparing for cutting a balloon for barbecue
Before making the first cut, you need to protect yourself. To do this, you need to fill the bottle with water. How it's done? Before you start the robot, you need to make sure that the tank is empty. To do this, open the shut-off valve, which is located at the top of the cylinder and by ear determine if there is a hiss of gas. Then, in the same way, with the tap open, turn it down with the tap so that all the available liquid flows out from the inside.
The stopcock is made of bronze alloy, and bronze is a very soft metal to work with. Therefore we take hand saw for metal and at the bottom of the faucet - where it is twisted into a cylinder, we cut off the faucet completely. We have formed an inlet into which we can insert a watering can or hose to fill with water. You need to understand that the water that will fill the balloon will displace the air saturated with gasoline, so it is forbidden to smoke or use open or hidden fire during this operation !!!
The bottle must be completely filled with water. After that, we make a cork. This is where a cork stopper from a bottle of wine or something like that can help us. Having slightly tucked it, we hammer it tightly with a hammer into the hole. Then we lay the balloon in a horizontal position and make a cut.
Making a mangal cover
When starting to cut the cylinder, it must be taken into account that water will flow during the through cut. Therefore, we remove as much as possible electric wires and it is better to cut on an inclined base by controlling the flow of water. Yes, I agree that the event is "wet", but this is the safest method of cutting a gas bottle.
We make a cut with a grinder along our marked lines. They are marked in red on my diagram. The disk for the grinder must be chosen thicker, at least 1.6 mm. The width of the cut is compensated by the expansion of the metal when heated. It must be remembered that the metal on the cylinder “tenses” during welding and, when cutting, can wedge the disc a little, so we use wedges. At the same time, we cut off the threaded connection for the stopcock cover. It is located on top of the balloon.
So, when the brazier cover is cut out of sheet metal, we cut out strips 3 cm wide, one meter long - three pieces, and weld along the perimeter of the cover so that the edge of the strip protrudes 1.5 cm beyond the edges of the cover. With the help of clamps, periodically pressing the strip to the lid. This will prevent the lid from falling into the middle of the grill. We also weld the handle. We clean the welding places with the help of a grinder and a cleaning disk. Having installed the cover on the cylinder, you need to center it and weld the curtains, having previously retreated same sizes from the edges of the balloon.
From the side of the top of the gas cylinder, where we cut off the threaded connection, you can make a valve that will regulate the smoke output, that is, the degree of smoked meat. We cut out three strips of 10 cm each from sheet metal and bend the edge with pliers or in a vice so that we roughly get a corner and scald around the perimeter of the hole, observing even dimensions. And from the same sheet metal we cut out the valve itself, making an allowance of no more than 1 cm so that there is free play.
From the bottom of the gas cylinder there is a cylindrical stand, which we also cut off with a grinder. It is welded with a burst seam around the circumference of the cylinder.
Leg welding
The legs or stand can be welded from improvised material, can be made collapsible or stationary, with or without tables. You can even use a stand from an old sewing machine, but I got by with the most economical option.
We take a corner and cut off two blanks of 14 cm each, we find a longitudinal welding seam on the cylinder, which we took as a reference line. We expose the cylinder on a horizontal platform or on a table, so that the seam is at the bottom and, placing a corner parallel to the platform, weld it at a conventional distance from the edge of the cylinder so that the center of the corner shelf coincides with the welding seam of the cylinder. We do the same on the other side. So we got the base for attaching the legs. And now we look if we need to make the legs not separate from the brazier, then we simply cut a 30x30 pipe or a corner in length, which will be convenient for us for the height of the brazier - about 50 to 70 centimeters. Next, weld it to the corner, which is on the cylinder.
And if we plan to make a collapsible structure, then we also cut the blanks into legs, but do not weld them to the corner, but drill holes of about 8 millimeters in the upper part of the leg and in the corner welded to the cylinder. Thus, we get a collapsible design: the cylinder is separated from the legs and can easily fit in the trunk of a car for going to a barbecue in nature. It should be noted that the legs must also be mounted observing the identity of the dimensions and diagonal of the structure. In the lower part of the legs, it is desirable to weld the support patches, after cutting them out of sheet metal and placing the brazier on the legs on a flat area. This is necessary so that the brazier does not fall into the ground under its own weight and has good resistance to tipping over. For more convenient transportability, you can mount small wheels on two legs.
Installation of a chimney for a barbecue
A chimney is not an essential element of our homemade barbecue, but it gives a more aesthetic look and works as a regulator of the degree of smokedness of the cooked product.
For the manufacture of this element, a pipe with an outer diameter of 90m is quite suitable. and 70 cm long. Since the factory corners have a very smooth turn, you can weld the sharp corner yourself by first cutting out a pipe segment, which is marked from the turning point with a square in two directions at 45 degrees around the circumference of the pipe. Having cut a segment with a grinder, we bend the smaller part to the larger one, with the help of a corner we check the angle of 90 degrees and weld them in place. After that, we expose the pipe to the place of welding, where we installed the damper, and weld the pipe well in a circle. It should be noted that each seam must be cleaned with a cleaning disk. So it acquires a more aesthetic appearance and the quality of the weld is clearly visible.
When the pipe is welded, install a protective cap. It is fixed with a clamping bolt.
Places for skewers and grill nets for barbecue
For a comfortable arrangement of skewers on the back wall of our barbecue, we drill holes. The skewer has a pointed part in front, which clearly enters these holes and holds steady there. As we see in the photo above, six skewers are conveniently placed on the grill. To do this, we make a markup, stepping back from the top edge of our cutout of the brazier cover, 10 cm. down on both sides, put marks and draw a line with chalk. This is the hole level. Then retreating from the edge of the radius cut 4 cm. and mark the drill. And then every 10 cm we put the same marks. Using a drill and a drill, we drill holes according to the marks. To do this, we first use a thin drill, for example, 4mm, and then we drill it with a 10mm drill, and at the end we chamfer the holes with a 12mm drill. or round file. FROM front side brazier we also make markings on the upper face of the brazier and cut out the grooves for the skewers with a grinder. When this operation is completed, cover the brazier with a lid and transfer the marks of the places where the cutout is made to the brazier cover. We do the same cutting. This must be done so that when the skewers are installed, the brazier lid closes more tightly.
You can also make seats for the grill - a grid. To do this, we just need to weld metal shelves between the holes for the skewers. From the corner we cut out workpieces 3 cm long, and weld them to the walls of the brazier, having previously marked the places of welding so that the grid has six points of support along the perimeter of the brazier. We clean the places of welding and cut off sharp corners.
To cook meat on a grill grid, you can use a stainless steel grid, with a cell of 10x10, or 15x15mm, after cutting out the size of the perimeter of the seats as in the photo below.
Air holes
In section "markup", we marked out the line for the air supply. This line is at a distance of 10 cm from the longitudinal weld on both sides. Then we take a drill with a diameter of 8mm. and drill those holes. I believe that the hole diameter of 8mm is enough for air supply, since a larger diameter can affect the spillage of burning coals during the burning of heat in the grill. These holes can be drilled both at the beginning of our barbecue assembly and at the end of the work.
You can also add handles on the sides of the barbecue - for ease of movement around the territory.
Barbecue painting
Barbecues are operated outdoors. Therefore, after installing the device, we immediately determine what paint to paint the barbecue.
The coating will protect it from atmospheric precipitation, high humidity and temperature fluctuations. Of course, the brazier should be painted only on the outside. Inside it, when used, the temperature is too high for any type of paint.
The choice of coverage must be approached very carefully.
It must meet the following requirements
- The paint must contain modifiers that protect the metal from rust. The finish should not melt, i.e., have a high fire resistance. The instruction on the paint label must indicate its heat resistance of at least +500 °. Even better, if this figure is + 800 °.
- It should be borne in mind that the barbecues are used for cooking. Based on this, the coating should be environmentally friendly and safe. It should not react with any substances.
Paints are commercially available in two types: aerosol and just liquid paint.
Aerosol paint is sold in a can, in which there is air pressure, and when painting, we simply direct the jet of the can onto the surface to be painted at a distance of 20–30 cm. And liquid paint in a can is applied with an ordinary paint brush.
First you need to clean our brazier from dirt and dust, check the cleaning of all welds, and most importantly: clean the brazier and the brazier cover from old paint. The fact is that gas cylinders are not painted with heat-resistant paint, but applying heat-resistant paint to non-heat-resistant paint threatens with subsequent melting and burning out of the lower layer of paint, which will entail unpleasant consequences.
It should also be borne in mind that only the brazier itself can be painted with heat-resistant paint, the area of \u200b\u200bwhich is not more than 1.5 m 2. Therefore, one bottle will be enough for us. And the legs and available additional elements can be painted with ordinary paint for metal. This will slightly reduce costs, since heat-resistant paint is much higher in price than ordinary metal enamel.
During and after painting, dust should not get on the painted surface and work should be carried out at a temperature of at least 10 degrees Celsius in calm weather.
On this, our work on making a brazier from a gas cylinder can be considered finished, but on my own behalf I want to add that there are a lot of schemes and examples on the Internet for the manufacture of this type of brazier. However, a brazier from a gas cylinder can be unique in its kind when you make it yourself and show imagination to implement projects for additional structural elements. This is how I got a brazier from a gas cylinder with my own hands:
Write questions and additions below. I will be glad to hear your opinion.
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Sometimes it is necessary to cut an old gas cylinder in order to put it to good use on the farm. For example, a cut gas cylinder can be used as a reservoir for water in the system autonomous heating. Due to the design features, a cut cylinder is convenient for making fire in it, and can serve as a hearth for a forge.
There are rules for cutting containers in which combustible materials were stored. This article, in particular, will tell you how to saw through an old propane gas cylinder.
Necessary tools and materials:
- Empty propane gas tank
- Hacksaw for metal
- Funnel and water bucket or garden hose
- Empty plastic bottle
- Bulgarian and protective mask for grinder
Work order
- Open the cylinder valve to the stop and make sure that there is no gas left in it. If there is no sound of escaping gas, it is necessary to soap the outlet of the valve, check that all the gas has escaped.
- Lay the balloon on its side.
- Take a hacksaw for metal.
- Start sawing off the brass valve of the cylinder “under the root”. Brass is easy enough to cut with a hacksaw.
- Enlist the help of a friend: while sawing off the valve, a second person should pour water into the place where sawing off from plastic bottle or garden hose to prevent sparks.
- After sawing off the valve, fill the balloon with water. To do this, you can use a bucket (fill water through a funnel) or a long watering hose. Fill the balloon to the top.
- As the balloon fills up, shake it up to wash off the condensate from the walls.
- After filling the cylinder, you can drain the water, but not near the house, but somewhere near the garbage dump, as the drained water sometimes emits a strong propane smell that does not disappear for several days.
- After all the actions taken, the balloon is sawn by a grinder. The thickness of the metal is about 3 mm. So cutting shouldn't be a problem for you.
This is a standard technology for cutting containers that have stored combustible materials. Personally, I have already cut several cylinders with this method.
Heating appliances are used not only in residential, but also in industrial premises. There are a great many modifications of them, because in the workshops the conditions are usually not intricate. Therefore, they install everything that is affordable and economical - from bourgeois to technically well-thought-out heating systems.
Today we offer for consideration one of the most interesting models of furnaces. The rocket stove or jet stove is fundamentally different from others by the high degree of heating and convection of the body, which is made either of bricks (stone stove) or of thick-walled metal. This heater is equipped with a water circuit, connected to radiators and an almost complete economical heating system is obtained.
Our option jet furnace the author of the homemade product suggests making it from an empty propane tank. A small upgrade, a minimum of parts and in front of you great option heating furnace for the production workshop!
The principle of operation of the furnace
The furnace consists of a firebox, a heated container and a chimney. The firebox is made in the form of a bent pipe, in which firewood is burned in its lower part. Hot air rises through a vertical pipe located in the center of the heated container, which in our case is made from a gas cylinder. Rising up, hot air heats the walls of the container, and gradually cooling down, it exits from the bottom through the chimney, which creates air convection and draft in the furnace.
Materials:
- Propane gas cylinder;
- Square pipe welded from paired corners;
- Metal corner 50x50x5 mm;
- Round chimney pipe with swivel elbows;
- Auxiliary metal elements: plates, trimming corners, plugs.
- For cutting metal: an inverter plasma cutter or a grinder with a cleaning and cutting disc;
- Welding machine;
- Metal right corner, tape measure, marker for marking;
- Bubble level, hammer, metal brush.
Making a rocket stove
Before you get to work, you must remember that gas cylinders are extremely flammable and explosive. They must be thoroughly rinsed with water settled for a while in a cylinder, since even small residues of liquefied gas during cutting can lead to an explosion of the container.Cooking balloon
A household propane cylinder consists of a neck, a shell and a bottom. It is usually placed vertically so that the shut-off valve remains in the most visible place in the center of the cylinder. You need to get rid of it by lightly tapping it with a hammer.
Having unscrewed the fitting with an open-end wrench, we fill the cylinder with water to wash off the remnants of liquefied gas. We leave the water to stand for a while, and then carefully overturning the container, drain it. Even after such measures, we carefully transfer the balloon to the treatment site. Using a plasma cutter, cut off the bottom of the balloon.
We cut the pipes and scald the firebox
The next step is to cut metal corners according to the size of the loading chamber, furnace and air duct. We cut them with a grinder or a plasma cutter, and boil each of them along the ribs.The connections will be located at different angles. The dimensions of these elements are as follows:
- Vertical air duct - 900 mm;
- Horizontal firebox - 500 mm;
- Feeder or loading chamber - 400 mm.
The location of the loading chamber will be inclined, so the feeder nozzle must be cut at an angle of less than 45 degrees. We expose it on the fuel pipe a few centimeters from the edge of the firebox, where the ash pan will subsequently be located. According to the marking of the pipe section, we make a slot at the junction of the elements, and boil it in place.
The firebox must be level and securely fastened. A small segment of the corner from which the pipes were made will serve as a support for him. We cut it exactly to size, and put it on the bottom of the cylinder, checking the identity of the straight line between the planes of the cylinder with a metal corner.
We boil the firebox, reinforcing the vertical pipe of the duct with metal plates or corners. We mark out a seat for it on the wall of the cylinder, and make a slot with a plasma or a grinder. The more accurate the cut out is, the easier it is to scald it later.
We expose the firebox so that the vertical pipe inside the cylinder is located strictly in the center. We weld the bottom and the nozzle of the furnace with a welding machine.
An ordinary bolt or similar piece of metal will help to plug the hole on the top of the cylinder. We insert it into the hole, and weld it to the balloon. You can clean the seam with a grinding disc and a grinder.
