In order for you to be satisfied with everything: both the unit and the process of cooking food on it, you just need to do it yourself.
And then the old one will come to the rescue unnecessary gas cylinder. The iron is strong and the technology is simple.
Stock up necessary tools: jigsaw, grinder, drills, pipes (for making legs), sheet iron (for the bottom and stand), the cylinder itself.
To start, cut it lengthwise. You can not cut into equal parts, but leave the lower part larger. And the top one is a little smaller. It can later be used as a cover, movably secured with fasteners.
Location of holes in the grill affects the quality of food prepared on it. If make holes at the bottom of the unit– this allows the release of burnt oxygen and the outflow of harmful microelements, which directly leave the structure without lingering on meat or fish. A typical side holes This circulation of burnt oxygen is a little worse, and not very useful particles may settle on the products.
Better drill holes with a diameter of 12 mm at the bottom of the gas cylinder. It would be advisable to make not only a stand for the barbecue, but also an additional bottom on this stand so that the ash can be poured there.
To ensure that food cooks evenly on a do-it-yourself grill and that coals do not accumulate in the center of the cone-shaped product, some people make an additional internal shelf at the bottom of the cylinder. From a metal sheet with a diameter not less than 4-5 mm A piece is cut to size and fixed to the bottom of the unit with fasteners. It is on it that the coals will smolder and distribute heat evenly for cooking food.
Read also: How to make forged barbecues
The distance from the bottom shelf (bottom) to the surface where the food will be cooked should not exceed 10 cm. Otherwise, you will have to wait a long time for the food to cook.
The main thing in a barbecue is to make it convenient to prepare healthy and tasty food. That's why It is advisable to prepare the edges of the product both for skewers and for grids. You need to make (cut or cut) several recesses with your own hands, symmetrically located opposite each other at a distance not less than 8 cm, which will help you position the skewers comfortably. These same recesses are useful when cooking on the grill.
You can adapt the grill to a smokehouse. Needs to be welded pipe with a diameter of 10-15 cm to a pre-cut side hole (you can use the hole that was previously used to fill the gas cylinder). In this case, the smokehouse will function efficiently and efficiently.
Today, a popular topic among summer residents and owners of country houses is the creation of all kinds of barbecues, smokehouses, barbecues, ovens, etc. People began to relax more with their families on weekends, going to the dacha to barbecue, what could be better than fresh air and deliciously cooked kebab))
But in order to cook everything thoroughly and efficiently, you need a barbecue grill, smokehouse, for example, the author made this miracle from old gas cylinders. At first, the master simply made a barbecue grill from a cylinder, then he wanted to improve his creation and he added another small 25 liter cylinder as a smokehouse firebox, and a large cylinder serves as a smoking chamber. The compartments communicate with each other, the small one is located at a lower level to form draft and the smoke independently passes into the smoking compartment.
A small cylinder can also be used as a barbecue or barbecue, only one grate can fit there, and there are 2 times fewer skewers, but in combination with a large cylinder you can increase the barbecue productivity per hour)))
So, let's look at what is needed to create a smokehouse-barbecue-barbecue?
Materials
1. gas cylinder 25 l
2. fittings
3. metal pipe 50 mm
4. sheet metal 2-3 mm (for damper)
5. loops 2 pcs.
6. pen holders
7. pipe 50 mm long 1.5 m
8. lid opening limiter (fittings)
Tools
1. grinder (angle grinder)
2. welding machine
3. drill
4. hammer
5. file
6. ruler
7. marker
8. pliers
Step-by-step instructions for making a smokehouse-barbecue with your own hands.
As mentioned above, the author already had a basic grill made from a gas cylinder (By the way, the site has previous material on how to make a grill and correctly cut a gas cylinder) But the master decided to improve his design and increase its functionality, and as a result, productivity , adding another small compartment to the existing barbecue.
An old 25 liter gas cylinder was taken as the starting material (see how to cut a gas cylinder on the website). The cylinder was cut in compliance with all safety regulations.
Then, in the end part, using a grinder, a technological hole in the shape of an ellipse was cut out, through which two cylinders will communicate.
After which the master proceeds to making the lid of a small cylinder, namely, he makes markings with a marker and makes a cut with a grinder along the intended contour, but there is no need to cut everything out at once. We make one cut and immediately weld the hinges and only then cut out the entire lid.
The hinges are welded on.
Another technological hole in the shape of a triangle is made at the opposite end of the small cylinder; it will serve as a blower and regulate the air flow into the combustion chamber.
On a large cylinder, a hole is also made in the end part for installing a chimney pipe.
Pipe diameter 50 mm length 1.5 m.
This is exactly what happens.
Handle holders are welded onto the small cylinder, and the wooden handle itself is made from a shovel handle.
A limiter made of reinforcement is also welded for a certain opening angle of the grill lid.
A damper is installed; it is slightly larger in size than the hole itself and serves to regulate the air supply and draft accordingly.
After the firewood burns, we turn the damper to minimum to maintain smoldering in the combustion chamber.
It is advisable to use alder firewood; they produce very aromatic smoked meats) The author smoked chicken wings and sausages and smoked them for an hour.
Periodically you should open the lid of the smoking chamber and check the condition of the product.
Since purchasing a 2.5 mm sheet will cost more than purchasing a used 50 liter tank for storing a propane-butane mixture, and the labor intensity of the work in the latter case will be significantly reduced, most often a barbecue smokehouse is built from a gas cylinder with your own hands. Drawings, photos and videos will make it easier for the home craftsman to make a multifunctional fryer.
The main difficulty of combined fireplaces is the uneven conditions for cooking food. Therefore, a barbecue with a smokehouse made from a gas cylinder should be designed taking this nuance into account.
There are several options for smoking products:
Therefore, depending on the chosen technology, the default cylinder smokehouse will have, in principle, the same design. But its elements will be spaced apart from each other at different distances.
Roasters designed for cooking meat on skewers, called barbecues, have the following dimensions:
The height from the ground level is less critical; when making a stationary brazier, it is usually 0.8 - 1.2 m. Barbecues are fried on grates, the height and length of the hearth remain the same, the width depends on the same parameter of the grate itself. For grilling, the dimensions of the roaster are less critical, but a lid is required to maintain the same temperature inside the roaster.
Unlike a brazier made of sheet steel and a barrel, a brazier made from a gas cylinder has the following advantages:
Attention: For a multifunctional fireplace, one cylinder will not be enough, since it will be used for barbecue. The smoke generator is constructed from a second 50 liter tank of a similar purpose or from sheet steel.
Due to the above nuances, a grill, barbecue, barbecue and smokehouse can easily be combined within one structure. A classic barbecue is ideal for the food chamber of a smokehouse if it has a sealed lid that does not allow smoke to escape outside. It is necessary to add a smoke generator to the brazier, connected to it directly (hot smoking) or with a pipe (semi-cold and cold smoking) of the required length. 
Since the fireplace is stationary in 90% of cases, its supporting unit (legs, stand) can be decorated with twisted or forged elements and supplemented with a rain canopy. A chimney is necessary in any case.
Constructing a multifunctional fireplace with your own hands from a 50 liter gas tank should begin with design. Ideally, it is better to draw a smokehouse-barbecue in 3D in any available graphics editor. The obligatory minimum is a sketch on paper by hand, in order to at least roughly understand how much additional rolled metal of various assortments will be needed (angle, round and profile pipes). 
The basic requirements when working with pressure vessels containing flammable gases are:
The liquid should be drained in areas of the site not intended for planting. In 90% of cases, the cylinder is cut with an angle grinder with metal accessories; the tool should be used correctly:
Otherwise, an uncontrolled rebound is guaranteed, fraught with injury to the limbs. For fragments of a disk bursting at high speeds, special clothing is practically no obstacle, so it is forbidden to remove the protective cover during operation.
For a roaster that is operated alternately in the barbecue mode and the food chamber of the smokehouse, you will need a whole 50 liter propane cylinder. It is marked and cut as follows:
For ease of operation of the valves, corners are welded onto the tank bodies, which will become guides for the valves equipped with handles. 
The design of the smoke generator is a little more complicated:
Attention: When smoking food, the grill must be airtight, and when frying meat on coals, access to air is necessary for combustion. Therefore, instead of the classic holes on the sides of the body, a hatch is cut out from below, and a piece of the body becomes a shutter-scraper.
The legs of a universal roasting pan can be made in several ways:
In addition to the existing schemes of racks, legs and support units, the home master can use his own version.
Steel pipes of suitable diameter are suitable for the chimney. The main nuances are that it is not recommended to cut the chimney into the hole from which the cylinder valve was unscrewed; it is better to install the pipe at the top point of the cylindrical structure; when the grill lid is open, the chimney becomes ineffective; it is used only when smoking delicacies. 
Attention: The minimum height of the pipe to ensure draft is 1.5 m from the smoke generator firebox, which contains moistened sawdust.
At the last stage, the smokehouse is assembled from the resulting blanks:
Unlike a brick barbecue oven or barbecue, the structure is ready for immediate use, and the draft can be checked immediately. 
Well, here are a couple of step-by-step video instructions:
The resulting multifunctional barbecue can be equipped with additional functions and the structure can be decorated with decorative elements:
If you equip the universal fireplace with wheels, the grill-smokehouse can be moved around the area so that when the wind changes, combustion products do not interfere with the rest of guests and family members.
Thus, from at least two 50 liter used cylinders for storing a propane-butane mixture, a multifunctional fireplace is obtained. You can cook barbecue or shashlik on it, or smoke meat products all year round.
A thrifty owner can always breathe life into old unnecessary things. Someone may have an old propane gas cylinder lying around in their utility room. You shouldn’t sell it for scrap metal, because just one day of work and you will have an excellent smokehouse from a gas cylinder with your own hands.
The shape of the cylinder will give the product originality, and you will need a small set of tools that almost any craftsman will have. As a result of the efforts spent, the family will receive delicacies from fish, meat, lard or poultry.
A gas cylinder is an excellent preparation not only for a smokehouse, but also for a barbecue. However, it is advisable to choose a container that is not damaged by significant corrosion, as this will affect the durability of the product. Also, all work must be carried out only after the remaining gas and gasoline have been properly removed from the cavity.
Video - how to make a smokehouse from a cylinder yourself (brief instructions):
If all the work is done correctly, the product will last on average 15-20 years, which is much longer than store-bought ones.
You will need to stock up on the following materials and tools:
After selecting a cylinder, it is necessary to visually check it for the presence of deep corrosion. Next, you will need to get rid of the condensate and gas remaining in it. First, take the container out into the open space in the yard or other area. It is preferable to carry out work in dry, sunny weather. There should be no open source of fire near the work site.
Unscrew the valve as much as possible. After the intensive phase, turn the container over to remove residues. You can check whether the gas has completely escaped using ordinary soap paste. Lubricate the valve with it. When bubbles stop appearing, it means that the pressure inside is equal to the outside.
From the top of the future barbecue-smokehouse from a gas cylinder, we cut off the neck together with the tap with our own hands using a hacksaw.
When cutting off the top, do not allow a spark to occur. In this case, it is necessary to periodically water the treatment area to eliminate the risk of fire. The cut must be wet.
We rinse the opened cavity with running water to get rid of the smell. It is convenient to fill the volume with water using a hose. If it does not fit into the hole formed, then pour everything through a funnel.
Adding ammonia to water will be effective. Leave the container with this solution to settle for several hours. You can stir the liquid periodically. After draining the residue, wash it again with running water.
It is unlikely that any preliminary drawings will be needed to make a smokehouse with your own hands from a gas cylinder. Most often, manufacturers calculate the final result from the material that is available.
In general, this design of a vertical smokehouse can be useful, where you can use an electric stove.
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Marking the cuts for the door is done using a long ruler and a pencil. You can duplicate the stripes with thin white chalk.
The cuts will need to be made carefully without displacements, not reaching 100-150 mm along the axis before the rounding of the balloon ends (“top” and “bottom”) begins. There is no need to open the slots right away.
Having made long axial grooves with a grinder, we try on the hinges in place. We clean the surface to be welded with a metal brush fixed to a drill. Some craftsmen clean the area under the hinges with a grinder. The method is practical, but aesthetics are not always preserved. We “grab” the overhead loops by welding.
You can also subsequently secure these with rivets or bolts. However, no coating is allowed on rivets or other fasteners in order to prevent harmful fumes from near food. A more popular option for attaching hinges is final welding with electrodes. When the hinges are welded, we open the grooves separating the door from the frame completely.
From the side to which the tap was attached, we weld an elbow made of pipes onto the barbecue smokehouse from a gas cylinder with our own hands.
The height of the vertical section must be at least a meter. This will ensure high-quality traction and efficient smoldering of the chips during the process. A damper covering the upper end of the vertical pipe will help control the draft. In some designs, the damper fits into a cut groove in the pipe.
The second end is connected to the firebox for the smokehouse. To do this, cut out the lower half of the end diameter using a grinder. When using such a smokehouse as a barbecue, the draft in the former gas cylinder will be regulated using this cut-out sector.
During operation, thermal deformations of the manufactured container are possible. Tightening the structure will help reduce their influence. To do this, along the axis of the cylinder in the middle of the hole closed by the lid, we weld a tube with a diameter of 20-30 mm from the inside. It will also serve as a limiter to help prevent the lid from falling deeper. Another function of the pipe is to hang food products from it for smoking. This can also be done through holes drilled in the frame.
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Welded strips of metal along the perimeter of the lid will help ensure the tightness of the cavity. They can also serve as a closing stop. A horseshoe-shaped loop on the outside can prevent the lid from falling back sharply.
At the bottom of such smokehouses made from self-made gas cylinders, a special tray is installed, which serves as a container for collecting fat. To avoid smearing the container, it is advisable to cover the tray with food foil. The bases for a removable metal grill are attached above the pallet. You can make it yourself with your own hands from rods of stainless steel wire or use a ready-made unnecessary grill left over from an old refrigerator.
A smokehouse made from a gas cylinder, made by yourself as in the photo, must be stable so as not to tip over the coals and food. To do this, legs are attached to it. If you intend to use the device as a portable product, then it would be wiser to make them removable. Their convenient length will be 80-100 cm.
To do this, we weld bolts to the base of the former cylinder, and weld nuts to the prepared legs from a corner or construction profile. Before transportation, we unscrew the legs and return them to their original position upon arrival.
More often the base is not removable, but is rigidly welded to the base of the cylinder. For greater convenience, you can replace a pair of legs with a pair of wheels. Transportation within the immediate area will be simplified. Comfort for stationary legs will be added by several crossbars or a full-fledged shelf under the cylinder. In the cooking process, useful space always comes in handy.
If this unit is intended to be used not as a smokehouse, but only as a barbecue from gas cylinders, then an additional firebox will not be needed. If the owner intends to engage in smoking, then the fire will need to be lit in an additional container.
Additional firebox made of welded steel sheets
To make a firebox, you will need to cut a sheet of metal 3-4 mm thick. It is also possible to cut another cylinder of smaller volume. Two holes in the end opposite walls are left for mating with the smoking chamber and for installing a damper. The third hole is necessary for laying wood chips that form smoke smoke.
Additional firebox from another cylinder
Even a slight distance from the smoking chamber from the sawdust firebox will help prevent open flames. This is done by cutting into the pipe. In some designs, its role is played by a special corrugation.
The length of the finished smokehouse will help determine the final result, because hot smoking uses smoke at a higher temperature. For cold smoking you need almost cooled smoke.
The most important thing is that before the first smoking you should definitely let the unit go idle - heat it with wood, but without meat.
The video shows an example of a barbecue grill, smokehouse, made by hand from three 50-liter gas cylinders.
The grill-smokehouse (M-K) can be built from brick or stone. The result is grandiose multifunctional structures. If you don't need such grandeur, you can create an M-K with your own hands from gas cylinders.
Of course, you will need the necessary materials, tools and drawings, as well as skills and abilities.
Since a combined apparatus is conceived, its main specificity is the difference in the conditions for preparing the product.
You can smoke products using the following methods:
Schemes of these techniques are outlined below:
Depending on the preferred technique, the device will essentially have the same design. Only its components will be concentrated from each other at different distances.
The most common parameters of such units are:
An example of a drawing from a real cylinder:
A less critical indicator is the height from the ground line. Usually it is 80 - 120 cm. Grates are used for barbecuing. The lesion does not change in height and length. The width is affected by the size of the grille.
For grilling, the parameters of the fryer are less significant. But here you need a lid to maintain a stable temperature in the fryer itself.
The cylinder has a number of advantages over the barrel and sheet metal version. They are:
The planned barbecue-smokehouse made from a gas cylinder will be equipped with many functions. And here one container will not be enough. It can be used for barbecue. The second cylinder is activated. Its volume is 50 l. This will make a smoke generator.
One design can combine 4 devices. In addition to the basics: barbecue and smokehouse, you can arrange a grill and barbecue here.
The classic version of the barbecue is an ideal solution for the food compartment of the smokehouse. An important condition here is the presence of a lid with excellent sealing.
A smoke generator is added to the brazier. You can connect it with her directly, so the hot method will work. You can tie it with a pipe of the required length. This is how the other two methods will work.
It is impossible to make a multifunctional device from gas cylinders with your own hands without initial design. Ideally, use modern computer technology - draw a 3D drawing. At a minimum, you should have a sketch on paper. It is important to at least roughly imagine the upcoming costs of materials: corners, pipes, etc.
Drawing:
Before the main work, the cylinder must be prepared and made safe. For this:
Failure to comply with these criteria can result in serious injury.
The planned hybrid requires a 50 liter cylinder. The following designations and cuts are made on it:
Lid. It has a length corresponding to the entire height of the cylinder from the sealing ring (it is located at the bottom) to the initial line of the rounding section of the neck. The approximate width is one third of the length of the entire circumference of the container.
The lid to the cylinder must be mounted by welding on the hinges
Landing zones. They are needed for skewers. These are vertical slits on one side of the formed bowl.
Opposite them, through holes are arranged
Hole for smoke exhaust. It is cut in the upper side from the position of the neck.
Inlet. It may vary depending on the method. With the hot method, the smoke generator enters the body of the device from the bottom. The shape of the hole is oval, horizontally elongated.
With the cold method, for the pipe next to the smoke generator, the shape of the hole is a circle. Sizes – smaller
To conveniently use the dampers, corners should be welded onto the bodies of both cylinders. Handles can be mounted to the dampers
Its design is somewhat more difficult to work on. Algorithm of actions:
The balloon is cut to 50 cm in height. The bottom or neck is mounted back
A hole is prepared in the upper part for connection to the barbecue.
A grate for fuel (sawdust) is installed
The cover for access to the smoke generator is cut out
During the smoking process, there must be perfect sealing of the grill. When cooking a meat product over charcoal, air must penetrate into it. For this reason, instead of the standard side holes, a hatch should be cut out in the bottom. And part of the body in this situation is converted into a gate valve.
The methods for creating legs for M-K are as follows:
1. Brick layout.
2. Welding. A corner or profile pipe is used.
3. Using a used stand from a sewing model.
Cutting out a vertical container with 50 liters of planting zones. Their shape is a semicircle. They correspond to the diameter of the device.
To guarantee the necessary draft, it is necessary to use a pipe whose height reaches at least 150 cm. The calculation comes from the firebox of the smoke generator. Wetted fuel is placed in it
Laying several rims for a car. They lie on top of each other. Seized by welding.
You can invent your own innovative version of supports. A lot depends on your creativity here.
It is better to use steel pipes for the chimney. They must match in diameter.
The chimney does not need to be inserted into the hole where the cylinder valve was previously located.
It is better to mount the pipe at the top of the cylinder.
When the lid is open, the effectiveness of the smoke exhaust disappears. It is used only when smoking original dishes - delicacies.
At the culmination stage, you need to assemble the smokehouse from the resulting blanks:
This is how M-K is created, aka grill and barbecue from gas cylinders
Unlike the brick version, the device can be used immediately. And the traction test is carried out at the same moment.
The created device can be endowed with additional functionality and its design can be decorated in an original way. For example, you can arrange:
If you add wheels to such a device, it will become mobile. It can be moved freely around the site.
Thus, using only two 50 liter cylinders, you can create a multifunctional useful hybrid unit. It will allow you to delight yourself, your family and friends with delicious barbecues, kebabs and smoked meats all year round.
