You won't have to spend money on fuel for it! Boiler for heating at work. Choosing the best waste oil boiler - an overview of models

07.05.2020

Heating utility rooms for many is a very urgent problem. It is not always possible to connect a garage or shed to a stationary system, but to use electrical devices for heating such premises is not too justified from the financial side. The most practical solution in this situation would be to install an autonomous boiler. It is not difficult to make a boiler for testing with your own hands if you have the skills to work with a welding machine.

The boiler consists of two metal containers connected by a pipe. A chimney is installed in the upper part, the length of which should not be less than a meter. The lower container is designed for filling mining, where the upper layer of oil is heated and turns into oil vapor. Rising, the steam goes into the perforated pipe, mixes with air, reaches the upper tank and burns. Combustion products exit through the chimney; thus, the boiler heats the room, but does not emit toxic waste.

A boiler without a water circuit can freely heat a garage of about 40 square meters. m. As for products with a water circuit, they allow you to maintain comfortable temperature in fairly large rooms, even in very coldy. Moreover, fuel consumption is from 0.5 to 1 liter per hour, which makes it possible to significantly save on energy resources.

The mining boiler can be made single-circuit or two-circuit, depending on the needs of the owner. If you use the coolant only for heating, you need a single-circuit boiler. The second option allows you to heat the room and get hot water for domestic purposes, for this there is a built-in heat exchanger in the upper tank.

Video - A variant of the furnace for working out before connecting the water jacket

The principle of operation of such a boiler is also quite simple: from the supply tank, the pump delivers exhaust to the evaporation chamber, where it heats up and turns into steam. The steam rises into the combustion chamber, mixes with air and heats the water in the circuit. Hot water enters pipes and batteries, heats the room and returns to the boiler.

Tools and materials

To make a boiler yourself, you will need:

sheet steel with a thickness of 4 mm;
metal pipe for air duct;
4 pieces of reinforcement with a cross section of 8 or 10 mm;
compressor;
pump;
welding equipment;
expansion tank;
Bulgarian;
asbestos cloth;
half-inch corners, spurs and tees for the burner;
steel adapters;
heat resistant sealant.

The boiler can have any shape, therefore. If there is no sheet material of the required thickness, you can take a thick-walled pipe of large diameter or a cylinder right size. The simplest mining furnace is made from a pipe with a diameter of 50 cm, a pipe with a diameter of 20 cm, two round steel plates with a thickness of 3 mm or more. Despite the simplicity of design, such a stove does an excellent job of heating a garage of standard sizes.

Production of a boiler for mining

Furnace body assembly

So, work begins with the preparation of materials:

a pipe of large diameter is cut with a grinder so that a cylinder about a meter high is obtained;
a cylinder 20 cm high is cut out of a pipe of a smaller diameter;
a hole with a diameter of 20 cm is made in one of the plates, in the other plate the hole must correspond to the diameter of the chimney;
a large cylinder is closed on both sides with plates, scalding them in a circle;
bottom should be a plate with a large hole;
a small cylinder is welded along the edges of the hole and its bottom is covered with another plate;
from below, legs made of reinforcement are attached to the body;
drilled ventilation holes in the pipe.

You should get a cylindrical boiler body with a small tank at the bottom. In the lower part of the body, a door is cut out with a grinder, and a chimney pipe is installed on top. To light the boiler, you should open the door, pour used oil into the tank and bring burning paper. But this is the most primitive version of the furnace; products of a slightly more complex configuration are more common.

A standard mining furnace has the form of two metal boxes located one above the other and connected by a perforated pipe. In the lower case, an oil filling hole is cut out on one side, and a horizontal metal damper is installed on the other. A chimney pipe is mounted in the upper part of the second body. Both versions of the furnace can be easily upgraded: connect a supply tank with fuel and an oil supply pump, an air compressor, install a water circuit.

Burner installation

A reliable burner must be installed in a boiler with a water circuit, which will ensure uniform heating of the coolant. Its design consists of several elements, which you can assemble yourself. The shape of the burner is chosen arbitrarily, the main condition is that the mixing zone must be located above the combustion zone so that the oil can flow freely into the tank.

The burner cover is made according to the size of the nest in the boiler, using sheet steel with a thickness of 3 mm or more. The body of the burner is welded from half-inch corners, connecting them with special drives and tees. Additionally, you will need adapters for ½ fitting from two inches to connect the waste oil supply. The threads are pre-coated with a heat-resistant sealant and only then twisted.

The assembled burner must be installed correctly. To do this, take 2 steel plates of larger and smaller sizes, asbestos sheet, bolts and nuts. The inner surface of the adapter, as well as half-inch tubes, are covered with asbestos. Asbestos can be fixed on the pipes with steel wire, and in the adapter it is fixed with silicate sealant and laid in two layers. Next, the burner is inserted into the boiler and adjusted to the mounting socket.

A smaller steel plate is inserted into the socket of the body, and it is covered with 4-5 layers of asbestos from above. Mounting holes are drilled in another plate, laid on asbestos and both plates are twisted with bolts. The connection must be as tight as possible, otherwise, during operation, the elements of the burner may be deformed and move to the side. The boiler is ignited with a glow plug, which is used in diesel engines.

Housing and chimney installation

The mounted boiler with burner must be installed correctly. Since the housing gets too hot, there should be no flammable surfaces nearby. The site for the boiler is chosen in a free corner of the room, away from work tables and shelving. On the floor is the best thing to do concrete screed or tile it. You can not put such an oven on boards, laminate, plywood and other similar coatings. Adjacent walls must also be of non-combustible materials.

In order not to accidentally get burned on hot metal, after installing the boiler around it, you can put a frame welded from a corner. On the one hand, an opening is left in the frame, through which it is convenient to top up the fuel. A prerequisite for the operation of this heating equipment is good air exchange in the room. Constant inflow fresh air ensures uninterrupted operation of an open burner and does not allow carbon monoxide to accumulate in the room.

After the boiler body is securely installed, proceed to the installation of the chimney. The recommended length of the chimney is 4 m, while it is desirable that there are no horizontal sections. The straighter and higher chimney, the better the products of combustion of used oil. In the place where the pipe exits through the ceiling, a special heat-resistant casing is attached. Most often, several layers of asbestos cloth are used for these purposes. The chimney is equipped with a metal damper, which provides draft adjustment.

Water circuit connection

First, a pipeline is installed in the room and batteries are installed. For the pipeline, a steel pipe with a diameter of 43 mm is used; pipes are connected to heating radiators and fixed along the walls around the perimeter. Now you need a small container with thick walls for water. The container is installed on the boiler, securely fixed with bolts or welding to the body. A hole is cut out in the upper part of the container and a supply pipe is welded hot water into the system. At the bottom of the circuit there is another pipe through which the cooled water returns to the boiler.

You can mount the boiler a little differently. The boiler body is made from a piece of a large pipe with thick walls. An expansion tank is placed inside and securely strengthened. Next, take a steel pipe with a diameter of 10 cm and a wall thickness of 4 mm and drill holes for air in its lower part. A hole is cut out in the tank for a pipe, inserted and fixed so that the perforated section comes out of the boiler body and joins the waste tank. The bottom of the tank is hermetically sealed.

A damper is cut out in the lower part of the housing, the oil supply from the supply tank is connected using a hose. On the side, a tie-in is made for the compressor, a fuel supply pump is connected and circulation pump. Finally, a pipe is welded connecting the expansion tank and the heating pipes.

The choice of energy source for heating is the "cornerstone" in the design of the entire system. As an alternative to traditional
solid fuel or gas models, you can consider waste oil heating boilers for a private house. They differ not only structurally, but in some operational parameters .

The principle of operation of waste oil boilers

The specificity of the use of heating devices of this type is preliminary fuel preparation. Waste oil must be cleaned, for some systems - heated to the desired temperature. There are also differences in the principle of obtaining thermal energy.

(Homemade design)

Currently, a waste oil hot water boiler can operate according to the following schemes:

Burner. It is a block that can be installed in almost any solid fuel boiler . Advantages - good efficiency, small size and the presence of a control system. The main disadvantage is the high cost;
An oil boiler designed to use only waste or a similar fluid. To organize heating, you can purchase a factory model or make a similar design yourself.

The working principle is preliminary oil is heated, causing it to decompose into heavy carbohydrates and gas. In the pyrolysis zone, the latter is oxidized. The resulting gas is a fuel with the highest calorific value. Ash by-products settle in the lower part of the ash pan and are removed when it is filled.

To increase the efficiency of work, heating boilers of this type are equipped with an air supply system - a supercharger. Particular attention is paid to the fuel supply control mechanism.

Boiler Gecko: design and principle of operation

Before independent By the manufacturer of heating equipment, it is recommended that you familiarize yourself with similar factory models. As an example, consider Gecko brand boilers. They have good enough operational qualities, characterized reliability and performance.

(Gecko boiler design)

How Gecko Boilers Work

To get acquainted with the general principle of operation, it is necessary to familiarize yourself with the stages of converting fuel into thermal energy.

Through the fuel line (9), the used oil enters the evaporator (11).
Under the influence of temperature, the above-described transformation into a gas occurs.
Since it is lighter than air, the vapors rise along the vortex device (14).
Passing through the holes in this element, they ignite in the afterburner.
The air blower enriches the mixture with oxygen, which increases the heat output.
The transfer of energy to the coolant (water, antifreeze) occurs through the walls of the heat exchanger. They are in the afterburner.

To remove carbon monoxide, a gas duct is provided in the design. It is also designed to create thrust that circulates air flows inside the combustion chamber.

Making such a design with your own hands is not problematic. The main thing is to choose the right material for manufacturing and act in accordance with the developed technological scheme, taking into account the specifics of the drawing.

dispenser

The specifics of the operation of waste oil boilers is to create a device for supplying fuel. It is recommended to develop a simple and reliable scheme, according to which the oil will enter the combustion chamber in the required volume.

The designers of the Gecko boilers took the path of "least resistance". The principle of communicating vessels was used. dispenser installed separate from the boiler and connected to it by means of a fuel line.

(Dispenser diagram)

The fuel supply is adjusted by setting the position of the float. He opens (closes) the supply valve. In this way, the heating power can be reduced or increased.

When calculating a home-made design of a waste oil boiler, the following nuances must be taken into account:

Dispenser volume ;
The mechanism of its replenishment;
Float material. It should not collapse under the influence of fuel.

Having a general idea of \u200b\u200bthe principle of operation of boilers of this type, you can start making a structure with your own hands.

Stages of manufacturing a waste oil boiler

Heaters must meet certain requirements, the main of which are safety, efficiency and economical fuel consumption. Therefore, the first stage of design should be given special attention.

Drafting

It is not necessary to make the boiler according to a specific scheme. In practice, masters choose the optimal drawing and adapt it according to the existing conditions. An analysis of the available materials is made, a list of necessary tools is compiled.

(Drawing of a simple waste oil boiler)

To begin with, you can consider the design of a simple boiler. It consists of the following components:

Two barrels. The lower one is necessary for the installation of heating equipment, the upper one acts as a water tank;
Pipe with holes and damper cap ;
Oil container.

The advantage of this system lies in the ease of manufacture. But due to the lack of an ash pan and an air blower, the efficiency of the boiler will be small.

It is best to make homemade counterparts based on the actual dimensions of the structure.

Material selection

When selecting boiler components, guided by principle expediency. If you plan to heat a small room, waste oil equipment can be made from a gas cylinder.

A small modernization is enough, including the manufacture of a pipe with holes, an inlet for fuel supply and a chimney.

(Boiler from a gas cylinder)

If it is necessary to make the oven completely from improvised materials, you should choose the right accessories. When choosing, experts recommend adhering to such requirements:

Steel grade and thickness. You can use 15K or 20K. They withstand significant temperatures without reconfiguration. The thickness of the steel for the combustion chamber is from 3 mm or more. Frame manufactured from metal 2 mm. Application of cast iron impractical, since it is difficult to process;
Welding. The main condition is the tightness of the structure and the reliability of the welds;
Position control . To do this, legs with a height change function are welded to the bottom.

After the manufacture of the boiler, it is necessary to check its reliability and the quality of the welds. When testing, the power must be increased gradually, while maintaining the integrity of the elements.

Waste oil boiler automation

For normal operation of heating equipment of this type, it is necessary to ensure a uniform flow of fuel. For this, automation is used, similar to the Gecko dispenser. In addition to it, you can use other waste oil supply schemes.

(Mechanical scheme fuel supply)

Maximum automation is possible with the use of electronic control circuits. You can use the schema intellectual thermostat".

(Scheme of automation)

The power source is a device with parameters 12V, 30 A. Before fuel is pumped into the container, burner operation is blocked C1 . Activation is possible after charging the capacitor, subject to activation intellectual thermostat . The same scheme works for pumping fuel into the receiver. It stops after charging the capacitor C3.

In some cases, it will be necessary to adapt the described scheme for the operation of a specific boiler model using waste oil. Changes depend on the required power of the equipment and the capacity of the fuel storage tank.

An example of a homemade design can be found in the video:

When deciding to install a waste oil heater, it should be remembered that it is suitable for heating garages, greenhouses, sheds and other premises, except residential ones. Also, a steam generator used for industrial and construction purposes can also operate on waste oil.

The need for heating small rooms arises quite often. Owners of garages or barn buildings, greenhouse structures or greenhouses try to equip the room with a heater with the lowest fuel costs as profitably as possible. Recently, boilers for heating, which use waste oil as fuel, are gaining popularity.

This fuel is in abundance among car owners and its use causes minimal harm to the environment.

An oil boiler can be assembled with your own hands from an old potbelly stove or you can purchase a design that is completely ready for operation.

Among the purchased boilers are:

The double-turn boiler "TeploTerm" is a reliable, economical and easy-to-manage waste oil boiler. The higher the power and the larger the capacity of the water jacket, the greater the consumption of liquid fuel.
The GeKKon boiler, a product of Kurlykov, does not require pre-cleaning and heating of the oil. In addition to oils, it also allows the processing of brake fluid.
Hot water boiler at the Mustang mine - this furnace can be used both for industrial and domestic purposes.

Autonomous heating on waste oil is potentially dangerous, therefore, when assembling the structure and operating it on your own, you should follow the safety rules. All stages of work should be carried out slowly and according to the instructions, even the smallest mistake can lead to undesirable consequences.

Working out boiler: principle of operation

The calorific value of used engine oil is higher than that of pure diesel fuel. This nuance must be taken into account if you are making a heating boiler for testing on your own.

The principle of operation of the boiler is quite simple. The oil pump sends the waste oil through a hose straight to the evaporation chamber. This element of the boiler is made of durable metal that can withstand high temperatures. At the same time, at the very bottom, the oil evaporates. Oil vapors mix with the air inside and heat up the water jacket. This mixture enters the combustion chamber, where it burns completely and heats the coolant. The products of combustion themselves enter the chimney and are brought out.

Operating rules:

Do not leave working devices unattended for a long time;
In addition to oil, do not burn other materials in the boiler - this can damage the unit;
Make sure that water does not get inside the boiler, especially on its hot areas;
Do not cover the burner;
Do not add oil to the boiler during operation.

Experts warn that the constant operation of the boiler at full power can lead to a malfunction of the unit or its rapid breakdown.

Waste oil boilers: advantages and disadvantages

Heating boilers used oil boilers are very easy to use and require very little installation and fueling of the boiler.

When using a boiler, you can solve the main problem - heating the room and at the same time dispose of the used oil.

There are many advantages of a working-out boiler, which makes it very attractive for owners of garages, greenhouses and other premises that need heating.

Advantages of a heating boiler:

For refueling, very cheap fuel is used, oil is synthetic, mineral, transmission. You can also use their mixture in any proportions.
Fuel burns almost completely, leaving no waste. This boiler can be considered environmentally friendly.
The cost of the boiler is low, it pays off in one season of using the device.
The ability to assemble the boiler yourself from inexpensive parts.
Ease of boiler assembly. However, it consists of a small amount parts, which reduces the risk of structural failure.
The room warms up quite quickly and there is the possibility of constant heating in case of a decrease in the temperature in the room.

The household heating boiler is very easy to use and does not require special skills to assemble and install the boiler for testing. You can connect water to it and create a water heating system.

It has a boiler and its disadvantages:

High requirements for fire safety. There must be a fire extinguisher in the room where the boiler is located in case of fire.
The boiler room where the appliance is located must be well ventilated. During the operation of the boiler, oxygen in the room burns out strongly, so access to fresh air is required.
To ensure the normal operation of the boiler, you need to clean it quite often.
Special filters are used to clean the oil from various impurities.

When installing the boiler, do not forget about the presence of a chimney at least 4 meters long, which requires periodic cleaning. Proper operation and proper care will allow you to use the boiler for mining for a long time.

Waste oil heating boilers: unit device

In order for the mining boiler to function, there must be a fuel tank next to it. According to fire safety, stocks of used oil must be located at a distance of at least 20 m from a working boiler. In this case, it is necessary to solve the problem of supplying oil to the boiler.

A particular difficulty lies in the transfer of fuel to winter time when the oil becomes more viscous.

Before self-assembly of the unit, it is necessary to prepare drawings indicating all the constituent parts.

The mining boiler contains the following parts:

Boiler body - a cylindrical tank made of metal, ideally from a cylinder, inside which the elements of the boiler are assembled;
The burner is an indispensable part of the device, where oil accumulates, heated to a high temperature;
Thermostat;
Oil pump - helps the oil reach the combustion chamber;
Fuel filters - filter oil from various impurities;
Circulation pump - maintains a certain fluid pressure in the heating system;
Compressor - helps air get into the secondary combustion chamber.

It is important to install a chimney through which the smoke generated during the combustion of oil will exit.

How to make a waste oil boiler with your own hands

The simplest example is a boiler consisting of two pipes, possibly of different diameters, interconnected by a pipe with holes around the entire perimeter. The downpipe is the container into which the fuel is supplied. The top pipe is a chamber for the heat exchanger. There we place compactly laid pipes in order to transfer maximum heat to the water that will run through them. Between them is placed a pipe with holes arbitrarily drilled in it - this is a combustion chamber.

The most common oil boiler for heating can be made from a simple cylinder.

To work, you need a grinder with a circle for metal, welding machine, a puncher, a hammer, rivets, a sledgehammer and, most importantly, a structure assembly scheme.

Working process:

Cut off the bottom of the bottle so that you get a small container. From above, cover this container with a sheet of iron with a thickness of at least 3 mm with a hole for the future combustion chamber.
top also cut off the cylinder with a grinder so that just a pipe remains. We place and fix the heat exchanger in it and output the supply and return outside the boiler.
We install the top cover back, adapting the fasteners for it. It is desirable that everything be as tight as possible.
In the upper part of the cover we make a hole for the air duct, with a diameter of at least 100 mm. In the same place we attach a shutter.
We supply fuel to the fuel tank, it can be either upper or lower. The top feed will be more reliable as it can be adjusted. The lower method is that the oil will need to be forced through, this can be done due to the usual runoff from the tank due to the submersible oil pump.

The heating system must be assembled before connecting all water pipes. Additionally, a fan and an exit hole can be embedded warm air. The fan is best placed just above the combustion chamber.

All parts are assembled together, legs are welded and preferably fastened to the wall. The place must be heat resistant. The hole for the chimney should also be made of non-combustible materials around.

The principle of operation of the boiler on waste oil (video)

When self-assembling, you must strictly adhere to the rules for operating the heating boiler. It should be clear to everyone that children should not be allowed near a working boiler and flammable objects should not be left near the structure.

In matters of heating, people often focus on the problem of efficiency. Therefore, heating boilers for mining have gained their popularity.

The term "processing" means used oil that has been in primary use. Liquid may be synthetic or natural.

Suitable for heating oil both obtained from culinary utensils, and from under diesel locomotives or cars. Regardless of its origin, during the combustion process, the liquid will release the right amount of thermal energy. Therefore, having such a device is very beneficial if there is direct access to fuel.

Advantages of heating boilers in development

Waste oil boilers have many advantages.

economy

The boiler operates on already primary waste oil. A properly configured device burns it completely.

More often, such devices are purchased by people who have access to fuel in unlimited quantities.

For example, depot workers or machine-building plants. But even if the waste liquid has to be bought, then you will still be profitable.

The cost of oil is minimal, and it is consumed economically. The oil burns out completely, which means that every penny spent on it will be worked out.

autonomy

Such a boiler works autonomously, without connection to a stationary space heating system. The buyer independently, regardless of the centralized heat supply, decides where the device will be installed. This is true in private homes, where heating system essential in the cold season.

Simplicity of the device

The apparatus is so easy to assemble and operate that some craftsmen are trying to assemble it on their own. The principle of operation of a home-made and purchased unit is similar, and the resources spent on manufacturing or purchasing are almost the same.

Affordability

It is no coincidence that such heating devices are very popular. Despite the fact that there are few manufacturers of such devices on the market, they do not overestimate the cost, as they are well aware that such a device can be assembled at home. Combined with low fuel prices, the consumer can recoup his purchase already for the first heating season.

Photo 1. Two boilers (yellow and red) running on waste oil. Manufacturer: Thermobile.

Wide range of applications

Waste oil boilers are used not only for heating residential premises. You can often find them in offices, institutions, and even industrial and warehouse areas. It is these factors that influenced the fact that such devices received wide range applications.

Environmental friendliness

The fuel burns out completely. Wherein no toxic waste or harmful substances are emitted into the environment. The operation of the device is absolutely harmless to people and environment. Many models of manufacturers are marked with the eco-friendly label from various environmental organizations.

Usage efficiency

The device quickly heats the air and the room around maintains the set temperature. Warmth is felt almost immediately after turning on the device.

It not only remains in the room and does not disappear over time, but also spreads to other rooms.

Cons of using waste oil boilers

Cons of heating boilers for working out are also found.

Frequent maintenance

Along with the pros, there are also disadvantages that every future buyer should be aware of. The first one is frequent maintenance.

Such devices need proper care. Some models involve cleaning the combustion chamber of the boiler a couple of times a month.

It is necessary to clean it from the remnants of spent fuel as the filter becomes dirty, which needs to be checked at least once a month.

Main device Equipped with reusable filters, but the owners should not forget that they can easily fail. The instructions for each boiler contain information about the need to pass Maintenance. If the equipment is operated in accordance with the instructions, then maintenance can be carried out no more often than indicated in the instructions.

Mandatory ventilation

Despite the fact that spent fuel does not emit harmful substances and combustion products into the atmosphere, the vapors are quite strong, and in the absence of ventilation, they will settle on the ceiling and on the walls. This will damage the appearance of your room, spoil the materials, and also create an unacceptable climate for such a device. Therefore, make sure that the machine is located in a place with well-functioning ventilation.

Fuel storage

Spent fuel does not need additional filtration before use, but necessary steps must be taken to store it properly.

It must not be exposed to high temperatures or direct sunlight. Best to keep in special containers designed for oily liquids.

Photo 2. Storage of used oil in special canisters. The walls of the products must be thick.

Their volume will depend on the power and amount of fuel consumption of the device. Each owner of the boiler must have at least two containers. One is small, consumable, and the second is for collecting and storing used oil.

Attention! Don't stock up plenty of fuel. First of all, it burns rather slowly, so most of the oil will remain for the next season. Secondly, the presence of flammable liquids in residential premises is unsafe for others.

Noise at work

Unfortunately, a boiler operating on waste oil creates certain noises. This happens due to the operation of the fan and exhaust system. Therefore, it is advisable to install such equipment away from living rooms and rest rooms. The noise is quite loud and can interfere with sound sleep.

Kinds

The mining boilers are divided into pyrolysis and turboheaters.

Pyrolysis

This equipment made from sheet steel using steel pipes .

After manufacturing, the device is covered with heat-resistant paint. All elements make up a one-piece structure, where only the cover from the combustion chamber is disconnected.

The design of the device is simple. It includes:

Control block;
built-in fan;
remote oil pump;
combustion chamber with a water jacket.

In device no burner.

Operating principle such devices is simple:

Into the supply container spent fuel is poured through a hose, it is fed into a special chamber.
Evaporation chamber made of thick steel, heated to a certain temperature.
As it warms up, the oil starts to evaporate at the bottom. The escaping steam rises into the combustion chamber.
In its center there is a perforated pipe, which blows air from the fan.
Oil heated The vapors mix with oxygen and burn.
As a result of this process the water jacket is heated from the inside.
The vapors are directed to a gas-tube heat exchanger.
Passing through the water jacket the vapors cool down a little and are fed into the room.
Energy is transferred to the coolant. The combustion products themselves rise through the ventilation and leave the room.

Important! The main difference from other waste oil boilers is the absence of burners, which increases the reliability of use, and also affects the ease of operation. The design is very compact and easy to install.

Turbo burners

The principle of operation is similar to the functioning of diesel devices. It lies in the fact that the fuel is sprayed and the oil mist burns directly.

Photo 3 The arrows indicate the components of the structure.

To distinctive features such a device is sensitivity to fuel quality. If it contains various impurities or water, the burner will not start. You need good electrical power.

This device works in the following scenario:

Butter poured into a special compartment.
Under the influence of the flow of air masses, it enters the area of direct ignition. There is already a set temperature.
There is a pyrolysis effect.
Gaseous volatile products are released, which mix with oxygen and exit the hole. That's where they burn.
However, resinous products begin to accumulate in the compartment.
After the burner is turned off, the maximum temperature is maintained.
The air supply also does not stop.
Non-volatile pyrolysis products are preserved. The burner cleans itself.

All device consists of hard metal alloys. Top coated with heat-resistant paint.

Terms of use

In order for the boiler to serve for a long time without service, it is necessary to pay attention to the rules of use.

Fuel

Waste oil for boiler operation can be used for almost any purpose. The main thing is that it meets a number of requirements that are imposed by device manufacturers.

Photo 4. Draining used oil into a special container. The liquid itself is dark brown in color.

If you have additional filtration systems, feel free to use them. The cleaner the used oil is, the more efficient the combustion process will be. This also affects the fact that you will carry out less maintenance work during operation.

If analysis reveals that the fuel contains a large number of water and antifreeze, then it is necessary to filter the fuel completely. There are specific guidelines on how to remove such impurities.

Manufacturers often recommend using hydraulic, motor, transmission oils, as well as oil from an automatic transmission. But it is not recommended to use fuel oil in the device.

Calculation of fuel for the boiler takes place in accordance with the heat loss for each specific room. It is necessary to take into account data on the insulation of the place, its glazing, the operating mode of the boiler, as well as the necessary set temperature. Depending on the manufacturer, the calculation will be performed according to individual formulas. It is best to contact the manufacturer directly to identify this issue.

The most commonly used is the following formula:

B = d*(h1-h2) + d*(h1+h2) /qn

Where: h1- efficiency factor,

h2 is the enthalpy of the fuel,

d- heat of combustion of fuel,

qn temperature and specific heat capacity of the oil.

How to properly and safely pour fuel into the boiler?

Before starting work, you need to carry out a number of actions that ensure the safety of using the device:

Open liquid container. This is necessary so that it has time to interact with oxygen.
After that disconnect the device from the mains and power supply, check the degree of sealing of the seams.
Fill the collection screen with oil. Need to pour 10 mm layer. The oil must be clean.
Add 100 ml of kerosene to this liquid.
Take the wick and soak it in kindling.
Lower to the bottom of the container.
Set the work on fire.
Watch how the seams and oil behave. All actions must be carried out with gloves.
Close the lid.
After that, the device will start working., and you can check how well it works.

Photo 5. Refueling a homemade boiler with used oil. Fuel is poured into the lower part of the unit.

Do not get oil on foreign areas and parts of the device. All must be closed during operation. additional sources of oxygen supply such as doors or windows.

How to maintain the oven?

The waste oil boiler control system provides a simple and fairly trouble-free operation of the apparatus. The buyer is required to perform three actions during the working season:

Cleaning the heat exchanger

To carry out such a procedure, you need to find access to the boiler. It, in most cases, provides a removable back panel. Having got rid of it, you can remove soot and combustion products yourself, without the involvement of specialists. First, use a dry cleaning technique, and then go over with a damp cloth.

Nozzle replacement

If your device has been working for a long time, then the need to replace the nozzles may appear. already in season 1. Fuel is supplied directly to the burner, the combustion process takes place under pressure. The nozzles burn out and need to be replaced. Remove the nozzles and find the right size. Install according to the instructions.

Fuel filter cleaning

Oil, mainly machine oil, contains a huge amount of small fractions of metal and other substances.

All of them settle on the filter, clog it, because of this, the device stops functioning properly. Filters are changed at least once a season.

This procedure will protect the nozzles from contamination and, accordingly, burnout. All other systems and devices are functioning without the need for various hygiene procedures. one

Be first!

Average score: 0 out of 5 .
Rated: 0 readers .

Waste oil is one of the cheapest types of fuel used for heating boilers. It can be anything: synthetic or natural. Oil drained from culinary units, cars or diesel locomotives is suitable.

In any case, when burned, it will give a large amount of heat. Therefore, it is very profitable to assemble a boiler using used oil with your own hands. Especially if you need to heat a utility room or garage.

We will tell you how it works and how it works heater, what are the design nuances of a home-made unit, and also describe step by step process boiler assembly and features of its operation.

The mining boiler can be pyrolysis. Its main feature is the possibility of long-term operation on one fuel tab. Structurally, such a model will differ in the presence of an afterburner.

Here the final combustion of all chemical elements that make up the used oil takes place. Due to the presence of an afterburner, the operating time on one portion of oil is significantly increased.

How to make a boiler yourself

For the manufacture of a heater, we need the following materials and tools. We prepare sheet steel with a minimum thickness of 4 mm, fittings with a section of 10 or 8 mm, a pipe for an air duct, tees, spurs and half-inch corners for a burner, steel adapters, a compressor, an expansion tank and a pump.

In addition, you will need welding equipment, a heat-resistant sealant, an asbestos sheet and a grinder.

One of the most simple designs boiler in operation. Such a device is very simple to make on your own, while it will work effectively.

Consider the process of manufacturing the simplest home-made boiler for mining. The device itself can take different forms. In this regard, to facilitate the work, you can take not sheet steel, but a section of a large-section pipe with thick walls.

For example, a workable device that easily heats a standard-sized garage is obtained from two pipe fragments. One with a section of 0.5 m, the second - 0.2 m.

In addition to them, you will need two more metal plates with a minimum thickness of 3 mm, cut out in the shape of a circle. If you need a more powerful heater, then parts of the required dimensions are selected or made from sheet steel.

Now you can proceed to the assembly. We start with the preparation of the body. It will be made from a larger pipe. We cut it with a grinder so that we get a fragment about a meter high.

We also cut the pipe of a smaller section. So that we get a fragment with a height of 20 cm. Now we are preparing the plates that will function as the bottom and cover of the case.

In one of them we make a hole corresponding in size to the chimney. This will be the case cover. In the other, we cut a hole for the connection with a fragment of a small pipe. This will be the bottom of the structure.

We weld to it a cylinder cut from a pipe of a smaller diameter. We close its bottom with another round plate. We assemble the body, covering it with plates on both sides. We connect the parts, scald them in a circle.

We attach legs made of reinforcing bars to the bottom of the case. We drill ventilation holes in the pipe. We got a cauldron cylindrical shape, in the lower part of the body of which there is a small reservoir.

Now you need to equip the door. Cut it out at the bottom of the cylinder with a grinder. We put and fix the chimney on the upper part of the body. The simplest option boiler is ready.

To ignite it, you will need to pour some mining into the lower container and set it on fire with a burning paper wick. This is the simplest of all known options. You can assemble a more complex, and therefore more efficient design.

Actually circuit diagram of any fuel appliance for testing consists of two boxes made of durable metal, interconnected by an air duct in the form of a perforated pipe.

The lower box is equipped with a hole through which oil is poured into the evaporation chamber; a damper is usually located opposite it. The upper box is equipped with a hole into which the chimney is inserted.

It is very easy to supplement such a scheme with a variety of nodes: an oil supply pump, a drip feed, air compressor or connect a supply tank with fuel to the boiler.

You can also connect a water circuit. But in this case, it will be necessary to equip an efficient burner that can carry out the most uniform heating of the coolant.

A variant of a burner for a mining boiler, which is powered by a glow plug of a diesel engine. Such a burner can be used for appliances that heat the water circuit.

Consider the manufacturing process of such a burner. Actually, its shape can be arbitrary, but it must be remembered that the mixing zone should always be located only above the combustion zone.

Only in this case, unused mining will be able to return to the tank. To make the burner body, we take half-inch corners and connect them with tees and spurs.

For the oil pipeline supplying mining, adapters for the fitting will be additionally needed. Before tightening, we coat all threaded connections well with a heat-resistant sealant. We use sheet steel for the burner cover. Sheet thickness at least 3 mm.

We cut out a part from it that matches the size of the nest on the boiler. After we assembled the burner, it remains to install it correctly. To do this, we will prepare two steel plates, one should be slightly smaller than the other, nuts, bolts and an asbestos sheet. Half-inch tubes and the inner surface of the adapter must be covered with asbestos. We must fix the fabric.

We glue it with silicate sealant in two layers, fix asbestos on the tubes with steel wire. Now we take the burner and insert it into the body, if necessary, we adjust it to the installation socket.

After the burner "stood" in place, we install a smaller plate in the nest and cover it with several layers of asbestos cloth. Ideally, if there are four or five.

We use a large plate as a fixing pad. We drill several holes in it for fasteners, after which we lay them on top of the asbestos and twist both plates with bolts.

It must be understood that the resulting connection should be as tight as possible, if this is not the case, the elements of the burner may move during operation. To ignite such a burner, a standard glow plug is used, which is used in diesel engines.

In a simplified version, a mining boiler is a stove to which a heat exchanger or tank is connected to heat the coolant. The following selection of photos will acquaint you with the process of making a homemade stove:

Image gallery

In order to assemble the basis of the boiler - the stove for testing, we prepare the parts. It is better to cut them on a waterjet machine, for which you should contact a locksmith shop

Before welding the parts, we adjust them to each other using a clamp. We strive to give the shell the most rounded shape. If necessary, align the strip of metal with a hammer

After fitting, we weld the shell and the upper plane of the cover. First, we weld with dots after 2-3 cm, then with a continuous continuous seam

We adjust the shell of the lower part of the lower tank in the same way. We weld the parts, check for leaks by pouring water into the resulting container

We assemble the lid of the lower tank in the same way: we adjust the shape of the bottom and round the shell

We connect the fitted parts by welding. First of all, we cook with dots at small intervals, then with a continuous seam

Inside the upper tank we mount a fender, which will direct the flue gases to the chimney

We install a pipe into the hole cut by the machine in the top panel of the tank and weld it

Step 1: Preparing Parts for Assembly

Step 2: Fitting the Bottom Tank Parts

Step 3: Assembling the Lower Tank Top Cover

Step 4: Fixing the bottom of the lower tank

Step 5: Attaching the Bottom Tank Lid

Step 6: Attaching the Cover Parts by Welding

Step 7: Installing the internal fender

Step 8: Welding the flue pipe

The upper part of our homemade stove is ready. Now you need to assemble the lower part and connect the components:

Image gallery

We install the injection pipe, in which 56 holes are pre-drilled. We start it in the lower part of the upper tank. We mark its location, weld

We assemble the upper tank from two parts, a chimney pipe is welded to the upper of which, an injection pipe is welded to the lower one

We weld the upper part of the lower tank to the injection pipe. We carry out all work on connecting tanks to pipes, controlling the assembly with a building level

We adjust the tank shells so as to achieve the most snug fit, virtually without gaps

We weld the parts of the lower tank fitted to each other. First we cook with dots, then with a continuous seam

In order not to add oil constantly processed in the stove, we build an additional tank. It will be attached to the bottom tank of the stove.

We put an overflow tube at the bottom of the stove, which will provide a metered supply of oil to the lower tank. In order to provide the tube with space, and the stability of the stove from the bottom, we weld two segments of the corner

We weld the legs to the assembled structure. For stability, it is better to make three of them. If some roll is observed, then it will be necessary to correct the bottom of the support with a file