Pellet burner do it yourself drawings with dimensions. Pellet gravity burner

A do-it-yourself gravity pellet burner is a great opportunity to make a high-quality device for automatic dosing of pellet feed. The main feature of this device, which is represented by a tray for filling fuel, a brazier, a fan and an ignition device, is the fastening of the burner to the furnace door.

Pellet burner will provide automatic fuel supply

general description

As a rule, a standard pellet burner is sold by manufacturers already equipped with various accessories. Most often, the following items are included in the package:

  • controller for work automation;
  • auger for feeding pellets;
  • lambda probe, which measures the residual air volume and automatically regulates combustion;
  • bunker fuel tank.

In some cases, in the section from the auger to the burner, a plastic corrugation is installed, which, when reverse thrust appears, does not allow the spread of the flame. The main components of the burner are also:

  • an electric heating element that is involved in automatic ignition;
  • air supply fan located at the bottom of the device or behind the boiler, regulated by the controller.

In this video, we will learn how to make a pellet burner with your own hands:

The automated supply of fuel from the bunker to the furnace occurs without human intervention. Pellets are fed using a screw device with an electric drive, while the process is additionally checked by a controller with thermal sensors and an indication system that displays the operation of the burner itself.

The control scheme for the coolant temperature regime is simple. When the preset temperature is reached, the burner, using the controller, goes into standby mode with prolonged burning of the fuel. Then, when the coolant cools down to a certain temperature, the sensor sends a signal to start the fan, this causes the fuel to ignite and the device is put into normal operation. Heating elements are often used for ignition.

The efficiency of the burner will depend on the speed of filling the fuel into the furnace and the volume of the fuel itself, therefore only the correct setting of all parameters contributes to the optimal effect of the operation of this equipment.

Varieties of devices

Today there are three types of burners that can be installed in a heating boiler ... Each of the types has its own design solutions and features of work:

  1. The "fireplace" burner is used for fireplaces that are heated with pellets, as well as certain types of pyrolysis boiler equipment. The combustion process takes place in the bowl, and air is supplied from below. In this case, the pellets are fed from the top. It must be remembered that this design is rarely used in industrial burners, this is due to the size and the need to carefully adjust the equipment.
  2. Stoker view. This type of burner is very complex and large in size. During the installation of the equipment, the angle must certainly be correctly calculated, this will not allow the appearance of a significant amount of ash. It is also important to correctly mount the auger equipment for fuel supply. Among the disadvantages, one can single out rather high requirements that are imposed on the quality of the loaded fuel.

A variety of devices will allow you to choose the right one for you

  1. The flare type is used for heating small-sized rooms and was originally used for burning straw. The main advantages are represented by rather small dimensions, reliability during operation and simplicity of execution, as well as unpretentiousness in the quality of fuel. Among the shortcomings, one can single out weak power indicators, as well as significant overheating under the influence of a flame.

Today, computer control is widely used in flare burners, which makes it possible to adjust the fuel feed rate, as well as indicators such as the frequency of cleaning equipment, the speed and power of the fan rotation.

Development of the project and drawings


You can make a pellet burner with your own hands only if you correctly develop a preliminary project, prepare the tools for work and the required materials. When making a homemade pellet burner, all details and structural elements must be displayed in the drawings, including the combustion chamber, which is represented by a pipe with a square or rounded section, as well as a fan, a fuel hopper and a screw conveyor.

The frequency of maintenance of boiler equipment that operates in an autonomous mode will depend directly on the size of the installed bunker for loading fuel.

The electronic control panel independently controls the operation of the fan and all data on the intensity of air supply, which has a direct effect on the combustion rate of the pellets in the firebox.

When drawing up a project, it is necessary to take into account that the operability of the main structural elements, which are represented by a screw, a fan and an electronic control unit, are provided with the help of electricity, therefore this equipment is volatile.

Preparatory activities

Before making a homemade pellet burner with your own hands, you need to decide on the heating area of ​​the room, this will make it possible to accurately calculate the power of the boiler equipment.

The main factors that are certainly taken into account during the calculation:

  • height and size of the heated room;
  • the average temperature in your area;
  • wall material;
  • the number of window and door openings.


Taking into account the reference literature, it is necessary to determine the coefficients of thermal resistance of materials, and then perform calculations of heat loss. The capacity of the boiler equipment must be more than the heat losses by about 20 percent.

If you need to independently calculate the power indicators of the boiler, then you can use a special calculator. In this case, the error of the calculations made will be insignificant.

Burner manufacturing

To make a burner with your own hands, you can choose various design solutions that will determine the characteristics of the device and the principle of its operation. It should be taken into account that the overall cast iron burner must be located in the boiler furnace itself.

The operation of the screw mechanism is provided by an electric motor. At the same time, the length of the auger must be no more than 2 meters, this will reduce the risk of ash accumulation and minimize the frequency of cleaning the furnace.

Equipping this unit with a temperature sensor, which controls the heating of the casing and is responsible for the timely operation of the machine for supplying fuel, increases the convenience of use.


The design of the bunker needs great attention, which is of great importance when calculating the duration of the autonomous operation of the boiler. It is possible to install an additional auger, which will significantly increase the autonomous operation of the boiler equipment without refueling.

In certain situations, experts advise replacing a separate hopper with a regular package of pellets, which is firmly attached to the device using a special tripod.

Automation methods

The ratio of the fuel and air supply to the combustion chamber must be adjusted, otherwise the operation of the heating equipment will be unstable or constantly occur at high power.

The easiest way to change the speed of the fan and auger motor is to install the simplest regulator. But in this case, the need for regular supervision and adjustment of the equipment, taking into account the ambient temperature and the coolant, will be added. Setting up a heating system with your own hands is to select, in various operating modes, such a ratio of air and fuel supply, during which the flame torch will be stable and even. This can be achieved only during the automation of the boiler.

First you need to purchase an electronic control unit. If the boiler is already equipped with this device, then it is necessary to carefully study the possibilities of its use. Typically, controllers from leading manufacturers have free control contacts where the auger and fan electric motors can be connected. In this case, taking into account the indicators of the sensors, the controller will begin to increase or decrease the fuel supply and adjust the fan speed.

In terms of ignition and flame control, the burner can also be automated. It is necessary to purchase a photosensor, as well as an electronic filament element. The latter turns on at the very beginning, igniting the pellets, and the photosensor, during the appearance of a persistent flame, will notify the controller about this, which will turn off the incandescent element.

A filling sensor is installed on the branch pipe, its main task is to send a signal to the electronic control panel, if the auger is filled with pellets, in order to complete the fuel supply. All these automation methods make it possible to efficiently burn fuel and create comfort while servicing the heating boiler. But there are also certain disadvantages:

  1. The cost of making a burner goes up significantly.
  2. The electronic unit of the heating boiler included in the kit is usually not suitable for simultaneous operation with devices for controlling and igniting the burner, in which case it is necessary to purchase a new one.
  3. The burner cannot be connected to any controller.

Trouble-shooting

To organize the normal operation of a pellet heating boiler, you first need to choose the right location and make a competent installation of the heating system. When installing the boiler, the base must be strong, capable of supporting both the weight of the boiler itself and the weight of the pellet hopper.

The floor and walls must be insulated with non-combustible materials. Ventilation and chimney are mounted from the same materials.

There are several fairly common boiler malfunctions that can be easily corrected with your own hands:

  1. The appearance of sparks from the chimney, as a rule, is provoked by the contamination of ash pits with combustion products.
  2. High fuel consumption can be caused by poor quality pellets or a significant drop in outdoor temperature.
  3. Weak heating of the room can be due to an incorrect calculation of the power of the boiler equipment, if there is an airlock in the heating system, or if there are not enough batteries.
  4. The appearance of pops and smoke when opening the heating boiler door is most often due to the contamination of the chimney and fire pipes.

The most complex elements are best bought ready-made. A "grate", a burner, a fan and an electric motor, programmers and sensors, factory-made furnace doors are always much better than equipment that is assembled at home.

A do-it-yourself pellet burner is one of the available ways to optimize an autonomous heating system, especially if a solid fuel boiler is used as a heat source. This device will make it possible to heat the home with almost all types of solid fuels.

Many owners of private houses use not only wood and coal as solid fuel, but also sawdust, grain waste after processing, wood pellets, and seed husks. Such a free-flowing structure does not allow high-quality combustion of fuel in the classical way. That is why an additional device is required for burning husks and small sawdust - a pellet burner that can be made by hand. The video presented in the article will clearly demonstrate how it is made.

DIY pellet burner structure

The task of each burner is to create a powerful and even tongue of flame that heats the water jacket boiler, and the combustion force of which can be easily adjusted. The structure of a do-it-yourself pellet burner in this regard also pursues this goal and therefore it is a small combustion chamber, reminiscent of a wind tunnel, into which fuel enters and air is injected. The screw conveyor is used to feed husks or pellets, and the fuel enters it from the feed hopper, the volume of which affects the operating time of the device. A blower fan forces air into the combustion zone.

The combustion chamber is of two types:

  • rectangular section;
  • round section.

The latter option occurs most often, because such a camera is more easy to manufacture... A flat pan used for burning fuel is installed in it, and the chamber itself is attached to a flange plate adjacent to the outside of the frontal plane of the boiler. Outside, the device is a screw conveyor with an upper inlet pipe, which is used to get inside the fuel from the bunker.

Due to the fact that after the combustion of bulk solid fuel, practically no ash is formed, the device self-cleans from the air flow supplied by the blower. Therefore, ash begins to accumulate in the ash pan, which should be cleaned once a week.

Burner working principle

The principle of operation of the device is as follows: a small amount of fuel enters the chamber, then it is ignited, including at a minimum the air supply. As the flame grows stronger the camera starts to warm up, and the air is being pumped more and more. As a result, an even flame is formed, with the help of which the heat exchanger with water begins to heat up.

Loose solid fuel is fed to the auger for a pellet burner with your own hands in two ways:

  • The traditional way is that the pellets are fed from a separate large hopper. Such dimensions are necessary in order for the boiler to work for at least 7 days, because it should be cleaned once a week. From the bunker, the fuel is fed to the burner by means of an additional screw conveyor of the required length.
  • A much simpler method of supplying fuel is carried out in a self-made gravity pellet burner. Granules and husks, under their own weight, begin to pour into the auger from the hopper, which is installed directly above the burner device, and that, in turn, feeds the required amount into the combustion chamber.

To make such a device with your own hands, you will need certain material, which will not be difficult to pick up. For the combustion chamber, a heat-resistant steel pipe is best suited, the wall thickness of which should be at least 4 mm. This is necessary because the temperature is very high there.

The do-it-yourself pellet burner is attached to the body of the boiler plant using a flange plate, which is made of steel with a thickness of 3 mm. You can buy a feeding conveyor, or you can do it yourself from a regular pipe, into which you should place the auger. Suitable for rotation bearings, gear and a low-speed electric motor. The fan is purchased in the store and fixed on the plate, having prepared a place for it in advance. The plate itself is made according to the drawing of the pellet burner and depends on the design of the boiler door.

It is imperative that the amount of fuel and air supplied to the chamber is regulated, otherwise the pellet burner will be unstable or at maximum power all the time. The easiest way to change the speed of the fan and auger motors is to install a manual regulator. But in this case, it will be necessary to constantly monitor and adjust the heating unit, paying attention to the temperature of the coolant and air.

Burner adjustment consists in the correct selection of the ratio of fuel and air in different operating modes, while the flame must be stable and even. To achieve this, device automation is required.

To do this, you will need to purchase an electronic control unit. Basically, the controllers have free control contacts, to which the auger and fan motors are connected. At the same time, thanks to the signals from the sensors, the controller will regulate the supply of pellets and the fan speed.

To automate the process of ignition and control over the flame, it is necessary to purchase an electric filament element and a photo sensor. The first device will turn on and ignite the fuel, and the photosensor, in the event of a stable flame, will notify the controller about this, which turns off the glow element.

A filling sensor is installed on the supply pipe, which sends pulses to the electronic unit in case of filling the auger and the upper pipe with fuel in order to stop the supply of pellets.

However, using automation tools also has disadvantages:

Conclusion

If you know how a pellet burner works, you can make it yourself. The video presented in the article will help you figure it out. Self-production of a burner often requires automation devices and accessories. If this is too difficult, then it is better to purchase a factory-made device.

Homemade pellet burner video

Recently, consumers consider it justified to purchase all kinds of heating devices that are capable of operating on an alternative type of fuel. Thus, a pellet burner is gaining popularity; it can be made quite simply with your own hands. Such a structure can be installed without much difficulty, and during operation it shows its positive characteristics. This approach is especially relevant in a place where there is no gas pipeline, and electricity is a rather expensive resource. The main disadvantage of such a boiler is a rather impressive cost, which is true for factory models. That is why the masters recommend making such a heating device yourself. If necessary, then instead of the mentioned fuel, you can use coal, firewood and other plant waste. If a pellet burner is to be made by hand, then it is important to consider its additional advantages.

Positive features

The described equipment has an automatic ignition system, and is also fireproof. The consumer will be able to reduce costs due to the low cost of pellets. Among other things, there is no need to spend additional funds on maintenance. You can count on a high efficiency, and the period of operation of such equipment is 20 years, which will depend on the correct manufacture and operational features. The device does not depend on central heating sources and tariffs for such services.

Pellet boiler manufacturing

If a do-it-yourself pellet burner, the drawings of which are presented in the article, will be made independently, then at first glance such a design may seem unnecessarily complicated. However, if there is a desire, then all the work can be done independently. To do this, you will need to select tools and materials, as well as buy additional components.

Preparatory work

A do-it-yourself pellet burner cannot be made without the main component of the same name, which is recommended to be purchased in the store. This is due to the fact that the burner itself has a rather complex design, and although it is possible to make it yourself, such manipulations are difficult to implement. The burner is an element where the fuel is ignited, however, it also regulates the intensity of the flame. Among other things, the design will include sensors and programmers that will allow you to achieve more economical fuel consumption. With the help of these elements, it will be possible to achieve a comfortable indoor temperature. The pellet burner must have a housing that is recommended to be placed horizontally. This will allow the most efficient use of the heat recovered from the combustion of fuel. Sheet steel can act as a material for forming the body, but experts sometimes advise using cast iron or brick. You can choose the material that, in your opinion, is able to keep warm longer. The housing must ensure high-quality heat transfer to the next element of the device, that is, the heat exchanger.

The pellet burner must have a heat exchanger that is located inside the body. It looks like several pipes, which are sometimes replaced by a coil. They are connected to the building's heating system. Among other things, an inlet for pouring cold water should be provided. When making a combustion chamber, a hole should be provided in it, the diameter of which should be equivalent to the parameters of the purchased burner. The 100mm auger and electric motor will work in tandem. The latter is to be connected to the device control unit.

Work technology

If a do-it-yourself pellet burner is made, the drawings of which are presented in the article, then an inlet pipe must be installed in the discharge neck of the container, which belongs to the auger. After that, a plastic pipe is reinforced on its other part, along which the burner granules go. When a signal is received, the engine starts and continues to run until the combustion chamber is filled with the required amount of heat.

Features of the work

The device of a pellet burner assumes the presence of an even powerful torch, which is necessary to heat the water jacket. The intensity of the flame can be adjusted. To ensure the supply of husks and granules, a screw conveyor should be used, while fuel will flow into it from the loading hopper. The volume of the latter should be determined by how long the operation of the device will be. It is important to equip the structure with a fan that will blow air into the combustion area. Drawings of a pellet burner can be made by you yourself. It is important to take into account the estimated dimensions. For example, a combustion chamber can have both circular and rectangular cross-sections. The first option is somewhat more common, since manufacturing in this case is simpler. A flat fuel pan is installed in the round chamber, while the chamber itself is fixed to the flange plate. The latter must adhere to the outside of the device.

Different types of fuel are used for heating. Among them are pellets, which are compressed under high temperature and granular waste from wood processing, in particular sawdust. Compared to liquid fuels, they do not emit harmful vapors, do not require wood harvesting and are explosion-proof. If you wish, you can save more on heating if you know how a do-it-yourself pellet burner is made.

Pellets as fuel

Pellets have many advantages as a fuel. They burn well and at the same time produce ash in large quantities. But there are also some peculiarities. For example, in special burners there is a possibility of reverse combustion. In this case, the pyrolysis zone enters the fuel bunker. This could cause a fire.

Also, burners are critical in terms of air intake, since if there is an excess of it, the sawdust can be blown away. It is required to provide the desired combustion mode, which is very difficult to do.

You can melt a homemade pellet boiler like this:

Sawdust for heating is considered an energy-intensive fuel. About 5 kWh of heat is released per kilogram. To heat a medium-sized private house located in the middle zone of the country, the burner must burn about 2 kg of such fuel per hour. Pellets should be added to the hopper once or twice a day and do not forget to shake out the boiler ash pan. Used ash can be used as fertilizer.

Boiler design description

If you purchase automated equipment for heating a house using pellets, then you can spend up to 3 thousand USD. That is, which is very costly. More budgetary, but reliable designs will cost about $ 500. You can also make them yourself, which will save a lot.

But before you start work, you should study the device of the pellet burner well. Its key task is to ensure a stable flame and uniform combustion of sawdust. Attention should be paid to the regulation of the intensity of combustion.

The main structural elements of the product are as follows:

  • the combustion chamber;
  • bunker for loading solid fuel;
  • screw conveyor for fuel supply;
  • a fan that blows air into the chamber.

The duration of the maintenance of the automatic boiler depends on what volume the bunker will have. The fan is controlled by an electronic control unit. The intensity of fuel combustion is directly influenced by the intensity of air supply.

You need to prepare well to properly assemble the burner on sawdust with your own hands, drawings can be found in open sources. The device is volatile, the unit, fan and conveyor cannot operate without electricity.

The principle of operation of a pellet burner is as follows:

Bulk fuel is supplied to the burner in two ways. In the first case, you need to put a large hopper, pellets are immersed in it from the consumption for 10 days, provided that the equipment is in continuous operation. In order to supply fuel, a screw conveyor is mounted in the branch pipe. It has a length corresponding to the distance between the boiler and the hopper. In the second case, it is put directly on the burner, and the fuel enters the auger under its own weight. This type of burner is called a gravity burner.

A do-it-yourself pellet burner helps to significantly diversify the functions of a solid fuel boiler. There will be an opportunity to save coal and firewood. It is also easy to maintain. Fuel will need to be loaded only once a week.

Manufacturing of the unit

There are many design options for home production. There are different drawings of a pellet burner with your own hands, you need to indicate the dimensions of each element and prepare the necessary materials for work. Among them:

DIY pellet burner

The burner is assembled according to the existing drawings. The pipe must be attached to a flange plate attached to the casing. The open part of the chamber from which the fire comes will be located inside the combustion chamber and used to heat the water jacket.

An auger is placed under the nozzle inside the pipe, which will feed pellets into the combustion zone in parts. Depending on the intensity of the air supply, the speed of its work will be regulated.

If you install a manual regulator, you can set the required number of revolutions of the engine and fan. It is inexpensive and simple, but you will have to carefully monitor the operation of the device and, depending on external and internal factors, change the mode of electrical devices.


To automate the process, you will need to install a special control unit. The fan and auger motors, temperature sensors are connected to it. Upon receipt of signals from them, the work will be controlled in automatic mode.

A home-made device can be equipped with a device that allows you to automatically ignite and control the flame. Thanks to the filling sensor in the nozzle, it will be possible to watch how the fuel is being supplied. Naturally, automation means will increase the cost of manufacturing the device, but it will be more convenient to use.

Gravity type devices

Gravity burners may not be dependent on electricity. Fuel enters directly into the pyrolysis chamber, pressurization can be provided thanks to the chimney draft. The burner can be brought into operation in manual mode using one damper and a draft regulator in the chimney. But this type of device needs serious maintenance.

Manual non-volatile products are only homemade. On sale there are only gravitational semi-automatic designs, where fuel is supplied by means of "self-pumping".

To prevent fire from entering the bunker, you need to install an airlock based on elements that expand when heated, or use a double grate scheme. It is mobile and periodically moves back, taking away part of the pellets and transferring them to the combustion zone, while ash is pushed out into the ash pan at the same time. But there is a risk that the gap between the grates can quickly become clogged with ash. If the grate gets stuck in the rear position, fire can enter the hopper.

Sizing

As already mentioned, the work is based on a drawing with dimensions. They must be correct. The subsequent operation of the product depends on this.

The basket is the most important part of the design. The pyrolysis process can be disrupted due to sawdust getting stuck in the inclined rear wall. To prevent this from happening, the slots in it should not be continuous initially, but 2-3 mm less than the size of the pellets themselves, but not more than 6 mm.

And in the front wall, which separates the pyrolysis part of the structure and the combustion chamber, there should be solid gaps, preferably open from the bottom. The secondary air channel under the bottom of the basket should be about 30 mm, provided that the burner is 15 kW, and the slope of the wall should be 45 degrees. To burn 2-3 kg of fuel per hour, you need a basket with a tray of 130 x 130 mm and a depth of 100 to 120 mm.

Attention should be paid to the calculations during the production of the bunker. Usually it is precisely into it that the fire slips. Many recommend using blueprints from factory burners Pelletronov, the same applies to the parameters of the combustion chambers. And it is recommended to make the secondary air channel L-shaped, and an upward kink must be provided, due to which it mixes with pyrolysis gases.

It is recommended to use heat-resistant steel for the combustion chamber, its thickness should be 2 mm or more. It is difficult to cook hot steel, so you should roll up the reamer and peck at the joints or weld it using the spot method.

Pellets themselves as fuel, and burners for them, are not always used. Technically, both raw materials and equipment cannot yet be called ideal. However, their improvement in this regard occurs on a regular basis. And this applies not only to factory, but also home-made developments.

Finished burner

In recent years, it has become economically justified to purchase various heating systems operating on an alternative fuel. For example, pellet boilers are very popular, which are easy to install and operate. Especially where there is no gas pipeline and electricity is very expensive. The main disadvantage of such a boiler is its high cost, so the idea of ​​purchasing only a pellet burner to make a heating device with your own hands is quite justified. Despite the fact that it costs a lot, in the end the entire unit should come out much cheaper in cost than its counterpart in the store.

On the benefits of using pellets

Pellets are biofuels obtained from wood waste and peat. Outwardly, they resemble cylindrical granules with a standard size of 10 mm. Among the advantages of such biofuels, it is worth noting:

  • Granules are produced without the use of chemical components, they do not have any odor, unlike such fuels as gas, coal or diesel fuel. In addition, pellets do not absorb moisture, which makes it possible to maintain their calorific value for a long time under normal conditions.
  • Unlike other types of fuel, such pellets are non-flammable, they do not contain dust, which often causes allergies, and their thermal properties are superior even to coal.
  • High efficiency, while the amount of ash does not exceed 2% of the total volume of granules.
  • Pellets significantly save space in comparison with other types of wood fuel, in addition, they are easy to transport.
  • Pellets are an economical fuel in terms of financial costs.

On the advantages of pellet boilers

A pellet boiler is a type of solid fuel boiler, which has an automatic fuel supply mechanism for the continuous operation of the unit. As a rule, the combustion chamber in such a device is relatively small, since the main heat removal is carried out in a well-developed multi-pass part of the boiler. The boiler is equipped with a special volumetric type pellet burner, due to which a higher efficiency (efficiency) during the combustion of pellets is provided, compared to other types of similar burners operating on solid, liquid or gaseous fuels.

Fuel supply is carried out from the bunker in automatic mode, due to which the boiler can operate without the involvement of human efforts for a long time. For example, if the bunker is fully loaded, then this will be enough for 5-7 days of uninterrupted operation of the boiler.

Among the advantages of pellet boilers, the following should be noted:

Simple circuit

  • If necessary, not only pellets can be used as fuel, but also firewood or coal, as well as other plant waste.
  • The presence of an automatic burner ignition system.
  • Fire safety of the device.
  • Reducing costs, which is due to the low cost of pellets, lack of maintenance costs.
  • High efficiency of the heating device.
  • The period of operation of such a boiler is on average 20 years.
  • Independence from centralized fuel sources and tariffs for similar services.

The principle of operation of the boiler and its constituent elements

So, if all the advantages of pellets and boilers operating on this type of fuel were appreciated, and a decision was made to create an element such as a burner with our own hands, then it’s time to get acquainted with the general principle of building such a structure.

Another way

Fuel from a special container for storing pellets is fed into the combustion chamber using a transport auger. Considering that the boiler does not have a direct source of natural draft to maintain combustion, it is necessary to provide such an element as a burner in it. It will act as an air blower using a special fan, and will ignite the fuel at the moment the boiler is turned on.

After that, the thermal energy is transferred through the heat exchanger to the heating medium of the system, and the flue gases are discharged through the chimney. At the same time, an insignificant content of mineral elements in pellets forms an equally small amount of ash... Its removal is carried out through the grate into the ash pan chamber. As the pellets burn out in the combustion chamber, the temperature drops, which can be detected by a special sensor. Then, with the help of the auger, the pellets are automatically supplied from the loading tank.

Making a pellet boiler

At first glance, the system may seem too complicated, but with a great desire and proper skill, everything can be done with your own hands. To do this, you will need to develop a project with detailed drawings, select the necessary materials and tools, and purchase additional ready-made components.

Materials for work

The first stage is the creation of a project, which should contain thoughtful and accurate drawings, diagrams and assembly order for all elements. It is not recommended to build a structure without a project, since there is a high probability of error.

To create a boiler with your own hands, you will need:

  • A pellet burner - it is best to purchase such an element from a factory, since it will be problematic to make it on your own. The burner is not just an element where the fuel is ignited, but it also performs the functions of regulating the flame.
  • Sensors and several programmers, thanks to which you can achieve economical fuel consumption and provide the most comfortable temperature in the house.
  • The body should be made horizontal in order to efficiently use the heat obtained from the combustible fuel. The body material can be sheet steel, bricks or cast iron. Preference should be given to the material that will allow you to keep heat for a long time, and guarantees its high-quality transfer to the next structural element, i.e. heat exchanger.
  • Heat exchanger - mounted inside the body, and is made in the form of several rows of pipes or a coil, which are connected on one side to the heating system of the building. In addition, an inlet for pouring cold water into the heat exchanger must be provided.
  • Ash pan.
  • Combustion chamber - the diameter of its hole must be equal to the parameters of the purchased pellet burner.
  • Chimney.
  • Fuel bin - the place where the fuel will be stored and from where it will be supplied to the burner.
  • Auger with a diameter of 100 mm, a metal outer casing and an electric motor that will be connected to the control unit of the pellet boiler.

Pellet feeding

An inlet auger should be installed in the discharge neck of the container. Then, on its other part, a plastic pipe is fixed, through which the granules will flow to the pellet burner. When a signal is received, the electric motor starts and runs until the combustion chamber of the heating device is filled with the required amount of heat.

As a result, the complex of individual elements, ready-made and hand-made, in the aggregate, constitutes an efficient pellet boiler.

Conclusion

Having made the decision to create a pellet boiler with your own hands, it should be remembered that such a solution will not always be more profitable than purchasing a finished structure, especially since today economical device options are also offered. To do this, it is necessary to calculate the complete estimate of materials, all costs for welder services and other costs. Therefore, if in the end the amount is significantly lower than the cost of purchasing a ready-made complex, then you can safely start making a boiler with your own hands.