In modern market conditions, the price of products and goods is growing quite quickly and regularly. Everything is becoming more expensive, including energy. Owners residential buildings and premises are forced to find profitable options without losing the quality of the coolant. One such method is a DIY induction boiler. The operating principle of such equipment is based on the simplest and most understandable principle of electromagnetic induction. To understand how this works, you can imagine a thick wire through which current passes. An electromagnetic field appears around this wire. If you direct the converted energy to a metal plate, you can get a heat-transfer surface.

The main advantage induction boiler is that you can easily do it with your own hands, even without the appropriate physical and technical education. It is enough to understand the principle of its operation and collect all the necessary materials. Which ones are in our article.

Device

The operating principle of a homemade boiler is no different from an industrial one. This is a structure consisting of a heating circuit and a pipe placed inside with a winding and a steel core. The circuit must be made of a ferromagnetic material, that is, a material that does not attract or react to the steel core. The generated electromagnetic field heats the circuit and heat is released.

Considering that in this design it is the coil that acts as the generator, the efficiency of its operation can be changed by the number of turns of the winding and the type of material from which it is made.

To date induction boilers is called perhaps the most effective and in an economical way heating large and small rooms. Whether this is so, a video report will help you figure it out, where the most famous theses about induction boilers are discussed.

Before you start assembling it yourself, you should understand in detail what elements are included in its composition and on what principle they work.

The operation of a coil with a winding is in many ways identical to the operation of a tubular electric heater (TEH), which also converts thermal energy electricity.

The simplest type of induction boilers implements the principle of an electric inductor, when incoming electrical energy is converted into an electromagnetic field.

For this, 2 types of winding are used: primary and secondary.

The primary winding (circuit) is necessary to generate an eddy current from the incoming electricity. The magnetic field from the vortex flow is transmitted to the secondary winding, which acts as the main heating element of the boiler. It is from the secondary winding that heat is transferred to the ferromagnet and, accordingly, heats the coolant.

Scheme

The main element of the equipment is the housing, and it is by its shape that you can determine whether the boiler in front of you is homemade or industrial. The latter is always manufactured according to the principle of cylindrical winding, which is rational in a conveyor environment. A homemade winding is traditionally made in the shape of a torus (torroidal) - w-shaped turns mounted on a core. This method is more rational, as it allows you to reduce weight and dimensions finished design, but at the same time increase efficiency.

The IR housing includes the following required elements:

• core;
• outer contour;
• electrical insulating material;
• thermal insulation layer.

In homemade boilers, the volume of transferred thermal energy approaches 97%, which is truly one of the most effective ways heating.

The advantages of such boilers

1. Maximum simplicity of design ensures it long-term operation- the minimum term is 15 years.
2. There is no mechanical wear of the entire boiler or its constituent elements. There are no dynamic parts, so wear is basically impossible.
3. The winding, made of copper wire, has a minimum safety margin of 25 years. And in induction boilers, where the turns do not touch each other, this potential is even greater.
4. The only potentially dangerous part is the core, which gradually deteriorates over time, but this process continues for several decades.
5. IN industrial types For boilers, the warranty period only applies to transistors that provide electricity. The stated lifespan is 10 years, although in reality, even after 30 years, the transistors worked flawlessly.

Induction boilers cannot be compared with any other electrical analogues, and even more so in comparison with heating elements.

If we evaluate the advantages in relation to conventional boilers operating on solid, liquid or gaseous fuels, we can highlight the following:

• the coolant is heated twice due to the heat coming from the primary and secondary circuits;
• due to the double operation of the circuits, the heating time is reduced by half;
• minimum inertial level;
• there is no scale on the walls due to the closed whirlpool;
• there is no need for regular technical and service maintenance.

How to make it yourself

Necessary materials:

• pieces of steel wire Ø 7mm, length 50-70mm;
• copper wire Ø 5-7mm;
• pipe wall thickness 3-5 mm;
• metal grid;
• adapters for boiler piping.

In addition, you will need tools (pliers, a clamp, etc.) and inverter welding.

For the boiler body you will need a plastic pipe with a wall thickness of 3-5 mm and a diameter of 50 mm.

In order to be able to determine all the necessary characteristics of an induction boiler, use the diagram:

Manufacturing process

Cut steel wire into a large number of pieces - they will be placed in the boiler body in order to increase the heat transfer area. To do this, the housing must be tightly closed on both sides.

Weld the adapter on the receiving pipe using inverter welding, and place the adapter on the supply pipe through which the coolant exits onto a threaded connection.

To make your own induction coil, you will need copper wire. Screw it onto a plastic pipe, making an equal distance between the strips. The number of turns varies from 90 to 100, and the more there are, the higher the efficiency of the boiler.

The induction coil must be connected to the inverter with high frequency. The manufactured structure can be installed at any point in the pipeline, and for this there is no need to install a separate system or make additional branching pipes

After you have assembled the entire structure, you need to insulate the open areas of the coil so that its operation is absolutely safe for others.

In order to understand exactly how to assemble an induction boiler with your own hands and what follows what, watch the video:

The advantages of induction boilers are undeniable - silent operation, the highest possible efficiency of 97%, low energy consumption, long service life of tens of years and much more. The average price of a domestic industrial boiler is 20-25 thousand rubles, which pays off within the first 3-5 years of operation. Making an induction boiler with your own hands is not difficult, although it will take some time and certain materials. If you are still thinking about whether to make or buy, first contact specialists who will tell you whether it is possible to install such a boiler in your system.

In the process of planning the installation of a heating system at the dacha or in country house many are trying to solve the problem of excessive energy costs by installing an induction heating boiler. In addition to saving energy, its design is such that it avoids harmful emissions into the environment and does not pose any danger during use. An important argument in its favor is the possibility of its independent design. In this article we will look at what an induction heating boiler is: everything about the operating principle + 2 do-it-yourself device options. In addition, its advantages over conventional electric boilers and gas units will become obvious to us.

Construction of induction boilers

The basis internal structure such a boiler has an inductor (transformer) turned on. Conventional household induction boilers are slightly different from similar industrial ones with a cylindrical winding system. Compact boilers for domestic use use toroidal copper windings.

The outer casing of the unit is made of painted metal, then there is a thick layer of thermal and electrical insulation, inside of which there is a double-walled core. It is made of special ferromagnetic steel and has a wall thickness of at least 10 mm. The toroidal winding that is wound on the core is the primary winding. This is where energy transformation takes place. electric field into a magnetic one, which creates eddy currents. Their energy is already transferred to the secondary winding. The role of the secondary winding is the body of the circuit, which, under the influence of this energy, releases a large amount of heat that is transferred to the coolant. Toroidal winding allows you to create units with low weight and dimensions.

Operating principle of induction boilers

The standard package usually includes the boiler itself, an absolutely necessary semiconductor converter called an inverter, circuit breakers, electronic thermostat. Myself temperature sensor located inside the boiler body.

The operation of induction boilers is based on the principle of electromagnetic induction. Its essence is that electricity consumed from the network creates an electromagnetic field. The coolant is supplied inside the boiler through the water pipe, which is welded at the bottom. Alternating current with a frequency of 20 kHz is supplied to the boiler through an inverter. When this device is turned on, current flows through the toroidal winding of the boiler. In this case, the steel core heats up to a temperature of 750 degrees in just 7 minutes.

The heat produced is transferred to the coolant circulating inside the circuit. Rapid heating of the liquid creates convection currents. This means that the heated coolant expands greatly and rushes up the boiler structure and further into the heating system itself. Often this is enough for a domestic boiler with an average length heating circuit to operate fully. This method allows you to quickly heat the entire system, but for better circulation you need to additionally install a conventional circulation pump.

Thanks to the application of the principle of magnetic induction, heating of the coolant in such boilers occurs much faster than in units with heating elements, and heat losses are minimal. There is almost no scale on the core, no matter how hard and calcareous the water is.

This happens because the eddy currents cause the core to vibrate, preventing scale from forming. At the same time, bubbles boiling near its body clean the surface of the core. Due to the tightness of the entire system, the coolant absorbs the maximum (98%) amount of released thermal energy. Thus, these parameters greatly increase the efficiency of the boiler, which has a positive effect on its efficiency and service life.

Pros and cons of induction boilers

Induction boilers have a number of undoubted advantages over conventional boilers using heating elements:

• Stable efficiency indicators up to 99% for almost the entire service life.
• There are no heating elements, which significantly extends the life of the device.
• There are no moving elements, which completely eliminates mechanical wear and the need to replace components.
• The absence of detachable internal connections does not allow for leakage.
• Full availability of work even with direct current or low voltage in the network.
• Very fast heating up desired temperature coolant (5 – 7 min).
• A fairly high degree of electrical and fire safety, corresponding to class II due to the use of a core not directly connected to the inductor.
• There is no need to install a chimney or provide a separate room for the boiler. To install this system there is no need to attract highly qualified specialists.
• The standard service life of the device is up to 25 years or even more. It directly depends on the tightness of the sealed external seam and on large thickness metal pipes for the core. He doesn't need any preventive work throughout the entire service life.
• The boiler can use all available coolant fluids: oil, water, antifreeze, ethylene glycol without any preliminary preparation.
• The coolant can only be changed once every 10 years.
• Good protection against overheating and various accidents, quiet operation.
• The boilers are equipped with electronic automated systems management.
• There is no scale inside the circuit.
• Possibility of connecting the boiler to any closed heating systems.
• The minimum possible heating of the coolant is 35°C.

But induction boilers have disadvantages, both compared to other heating devices and in terms of individual specific parameters.

• Such boilers can only be connected to a closed heating circuit, very often with forced circulation of coolant
• Enough heavy weight boiler with a fairly small size. The weight of a 2.5 kW boiler is at least 23 kg with a total height of 45 cm and a diameter of 12 cm.
• The price is higher than other boilers, which is due to the presence of an expensive part - an inverter.
• Radio interference generated at a distance of several meters from the boiler in the long-wave, medium-wave and even VHF range. They have no effect on human body, but they are well sensed by pets and electronic equipment.

Installation of an induction boiler and its control system

Installation of such boilers is only possible in a closed heating system. This requires an expansion tank and a pump for forced circulation coolant.

According to the instructions, the induction boiler is positioned strictly vertically. After this, the return pipe of the heating circuit is connected to the lower inlet pipe. The outlet is located at the top of the device (side or top). The supply pipeline is looped onto it.

The weight of the mounted boiler is quite serious, so the fastenings need to be given the utmost attention. Special attention. They must be very reliable, taking into account the fact that when the boiler is operating, its weight will increase significantly due to the coolant entering inside. The lateral distance from the boiler to surrounding objects and walls is 300 mm. The distance to the floor and ceiling is 800 mm and no less. An important and mandatory condition for installing such boilers is their grounding. It is possible to use both metal and metal-plastic pipes with it.

A group of safety devices is built next to the outlet pipe: a blast valve, a pressure gauge, an air vent. The expansion tank is installed at a convenient location in the return pipe of the system. Shut-off valves are mainly installed after the safety group.

Installation of the entire control system, as well as the boiler itself, must be carried out in accordance with the existing rules and regulations of the Electrical Installation Code, diagrams and conditions contained in the technical data sheet included in the kit.

Examples of homemade designs

If you are not going to use an induction boiler for main heating in a private house, but want to equip a cottage or garage with it, then you can try to design it yourself. There are two options on how to do this.

First option

To implement it you will need pieces of plastic pipes and welding inverter. Having basic knowledge of physics and knowing how to use wire cutters, you can independently make a basic induction model. To do this, you need to purchase an already created high-frequency welding inverter with continuously adjustable current power up to 15 amperes or even higher. To heat a large area, it is better to choose a much more powerful device. You will also need wire rod from of stainless steel or ordinary pieces of steel wire. This is necessary to act as a heated element. Their length is about 50 mm, with a diameter of 7 mm.

An important component is copper wire, which can be easily purchased at any specialty store. Do not use windings from old coils. The housing, which is the basis of the induction coil, is also part of the pipeline, so it can be made from plastic pipe with thick walls. Its internal diameter should be 50 mm. Two outlet pipes are attached to this housing for the flow of cold coolant and the release of hot coolant. The entire internal space of the case must be completely filled with pieces of wire and covered with a metal mesh so that they do not spill out.

An induction coil is made as follows: an enamel-coated pipe is gradually wound around a previously prepared plastic pipe. copper wire. It will take approximately 90 turns. The result homemade device needs to be connected to the pipeline network. Cut out of pipeline small area pipes, and instead a homemade induction boiler is installed. It is connected through an inverter and the water is simply turned on.

Second option

This option involves the use of a three-phase transformer with the possibility of fixation. In addition, you will also need welding machine. To make the device, you need to weld two pipes so that they look like a donut in cross-section. This design performs both conductive and heating functions. Then the winding is wound directly onto the boiler body in order for it to operate more efficiently, despite its low weight and size. Here it is used standard scheme heating the coolant: it receives a large amount of thermal energy upon contact with the winding.

The manufacturing scheme for this design is somewhat more complicated than in the first version. The boiler is equipped with two pipes, both for the entrance of the cold coolant and for the exit of the heated one. If you come up with and build a protective casing yourself, you can minimize heat losses.

Features of self-installation and operation of homemade boilers

As in the case of factory-made boilers, only a closed-type heating system can be suitable for installing a homemade induction installation. It should include centrifugal pump, which creates constant circulation of coolant inside the heating system. The plastic pipelines that are common today are ideally suited for installing a homemade induction boiler. All regulations related to the installation of store boilers must be fully observed in this case. If you install controls and safety devices on the system, then your homemade installation will be little inferior to its factory counterparts.

Although it is quite difficult to make such a device, and it is better not to take on this task without having “direct hands”, it is a pleasure to operate it. After all, along with ease of use, we also get serious energy savings.

The process of heating a home seems to be one of the most important for any person. When building a house, major repairs, or updating a pipeline, it is very important to accurately determine the heating source. If the homeowner lives in a gasified area, then there will be no unnecessary questions when choosing a heating boiler. Gas appliance - optimal solution, available in terms of quality and cost.

It will be more difficult for those people whose house construction is located in places remote from gas supply lines, and the purchase of cylinders occurs intermittently. In such a situation, it is logical to pay attention to an electric induction heating boiler. User reviews and the opinion of independent experts will provide us with an invaluable service in studying and choosing a device.

First acquaintance with the heat generator

Based on the name, it becomes clear that its operation is based on the principle of electromagnetic induction. What is its essence? Let's try to pass current through a coil of thick wire. A strong electromagnetic field is immediately formed around the device. If you place a ferromagnet (an attractive metal) inside, it will heat up very quickly.

The simplest heating system is a wire coil with a dielectric tube, inside of which there is a steel rod. By powering the device from the electrical network, we will heat the core. All that remains is to connect the resulting coil to the heating main and you will get a primitive heating system.

In other words, electrical energy produces an electromagnetic field, the waves of which heat the metal base. And from him heat transferred to the coolant (water or antifreeze). Intense heating of the liquid creates convection currents. Their power is quite enough for the productive operation of a small heating circuit. In systems with a long pipeline length, it is recommended to install a circulation pump.

Internal device

Structurally induction heating is a transformer enclosed in a welded metal shell. Under the casing there is a heat-insulating layer. The coil is located in a separate compartment, hermetically sealed from the working space. This placement is safe because it completely eliminates contact with the coolant. The core consists of thin steel tubes with a toroidal winding.

Please note that a heating boiler made from an induction stove is not fundamentally different from traditional heat generators equipped with heating elements. Its design features ensure uninterrupted, highly efficient operation of the heating system for a very long period of time.

Long-term operation of the heating system is ensured design feature, which is different from an induction heating boiler. User reviews indicate that such units operate equally effectively at any current frequency. That is, devices can be powered not only from a household electrical network, but also from high-frequency converters. Built-in sensors are able to respond to voltage changes and monitor heating indicators.

Induction heating boilers: reviews and complaints

The lack of information about the design and operating principles of heat generators creates many questions. By consulting a specialized store, you can sometimes hear extremely positive characteristics that are awarded to induction heating boilers. Reviews from sales managers are often disingenuous, because there are no ideal devices in the world.

By deliberately forgetting about existing shortcomings, sellers can mislead potential buyers. To objectively understand the situation, let’s consider the most common statements.

Main points

Innovative development

In fact, electromagnetic induction as a physical phenomenon was discovered by scientist Michael Faraday back in the 19th century. A furnace based induction cookers have long been used for steel smelting. That is, no new technologies were invented, and modern boilers operate on a long-known discovery.

Advantageous purchase

We are assured that an induction heating boiler can save up to 30% of electricity. Reviews from authoritative experts express incomplete agreement with this thesis.

Firstly, any heating device transforms all incoming electrical energy into heat. In this case, the efficiency will not necessarily be high, because the dispersion of heated air flows may occur unevenly.

Secondly, the rate of heating of the coolant depends on efficient operation heating device. No matter how much we would like it, the facts confirm the large amount of electricity that an induction heating boiler consumes. Reviews from any person at least a little familiar with the laws of physics agree with obvious fact: To obtain one kilowatt of heat, you need to spend the same amount of electricity.

Thirdly, some of the heat generated is wasted. For the sake of fairness, it is worth noting that she still remains in the house and does not fly down the drain.

Thus, the high efficiency of the device can be considered somewhat relative.

Durability

We are assured that induction ones are capable of uninterrupted operation for thirty to forty years. And that the reliability of the devices is much higher than that of other types of electric boilers. Let's analyze this statement in more detail.

Firstly, induction devices are incapable of mechanical wear. They have no moving parts, so there is simply nothing to break.

Secondly, the copper winding of the coil can last quite a long time. Even damage to the insulation will not harm its operation.

Thirdly, the steel core, despite its sufficient thickness (about 7 mm) and the strength of the base material, still gradually collapses. The constant change of heating and cooling significantly affects the strength of the rod. But the negative process is too extended over time, so it may take more than one year before the core completely fails.

Fourthly, the duration and reliability of operation of the heating device is influenced by the quality of the transistors. It depends on them how long induction heating boilers will serve flawlessly. Reviews from grateful owners confirm the ten-year warranty. In practice, there have been cases where heat generators operated without failures for more than thirty years.

The listed arguments unanimously recognize the actual durability of induction boilers. This advantage looks especially convincing against the background of heating elements, which require replacement of internal parts after just a few years of operation. There are often cases when heating elements do not even exhaust their service life.

Consistency of operating parameters

Furnaces based on heating elements gradually lose power due to the formation of scale on heating elements. This is where induction heating boilers differ significantly from them: the technical characteristics here remain unchanged over many years of operation. Let's try to figure out whether this statement is true.

The great influence of scale on reducing power in boilers with heating elements is somewhat exaggerated. The fact is that limescale does not have a high level of thermal insulation. In addition, in a closed water heating ring, the formation of a large layer of scale is impossible.

In induction devices, the formation of layers is completely eliminated. Even if the core comes into contact with liquid coolant, it still won’t grow limescale. Deposits simply cannot be physically retained on the surface of the rod due to its constant vibration under the influence of the electromagnetic field. In addition, water bubbles constantly form on the hot core, which have a destructive effect on any scale.

Thus, the statement about the unchanged technical characteristics of induction devices is absolutely correct. As for heating element boilers, the thesis here is not entirely true.

Silent operation

Sales agents are quick to assure us that induction devices do not make any sounds when turned on. Is this really true?

There are no sound vibrations in any electric heating devices. A minor noise level can be created by additional devices - circulation pumps. The modern market offers big choice forced action devices, among which you can find completely silent ones. So, we can consider the sellers' statements to be fair.

Compactness

A small piece of pipe with wound wire - this is what an induction heating boiler looks like. Reviews from owners of the heating device confirm the possibility of placing the device in any room.

Safety

There is no point in saying that the heat generator is absolutely safe. In the event of a coolant leak, heating of the core will still continue. If you do not turn off the device, it will melt very quickly. In order to exclude similar situations, during installation you need to take care of an additional device that automatically turns off the system in case of unforeseen circumstances. It is clear that the safety of all electric boilers is at the same level.

Is it possible to make an induction heating boiler with your own hands?

The need to obtain inexpensive and efficient heating at home with minimal costs for the arrangement of a heating system, pushes many consumers to the idea of ​​making their own equipment. After carefully familiarizing yourself with the operating and design principles of the device, you can assemble a homemade induction heating boiler. The main assistant in the matter will be a schematic image of the heating piping, which you need to constantly keep near you, checking and specifying the installation using it.

You don't need a high-power device for your home. So, to heat a room with an area of ​​100 square meters It is enough to make a 10 kW boiler. It is capable of providing rooms with a temperature of 20 degrees. TO homemade boiler You can purchase an electronic operating mode programmer. With its help, you can plan the operation of the induction apparatus for a week in advance. It is also possible to control the temperature from a distance.

Where to begin

Before starting work, you need to prepare the necessary materials and suitable tools. For ease of manufacture, it is advisable to prepare an inverter-type welding machine. It will be used to connect seams in the generator housing and attach pipelines. Also in the heating circuit design you will need a high-frequency converter (inverter).

Materials you may need:

• pieces of stainless steel wire or rod 50 mm long and about 7 mm in diameter - material for heating in a magnetic field;
• a piece of thick-walled plastic pipe with an internal diameter of up to 50 mm - the basis for the boiler body;
• enameled copper wire - the main heating element;
• adapters - connecting fasteners;
• metal mesh is a barrier between the coil and the walls of the housing.

Having prepared everything you need, we begin to make an induction heating boiler with our own hands.

Installation of a simple circuit

To increase the safety of a homemade heat generator, it is advisable to insulate the open areas of the coil. When choosing a material to protect copper wire, you need to take into account its electrical and thermal conductivity.

The considered circuit of an induction boiler, made by hand, is inexpensive for the manufacturer and can significantly increase the rate of heating water in the heating system. The disadvantages include the small size of the equipment and nondescript appearance.

Second boiler installation option

You can try heating device increased power. Its device will cost slightly more than the first option, but subsequently all costs will be fully recouped by excellent quality and high efficiency.

The design of the complicated model is a welded connection of two pipes that looks like a donut. The resulting part will simultaneously serve as a core and a heating element. Copper winding directly on the boiler body provides high level performance while maintaining the compactness and low weight of the device. The supply and outlet pipes are welded directly to the inductor. Thus, water heating will occur as a result of contact of the coolant with the copper winding.

Features that need to be taken into account when installing a boiler.

• Such an induction device can only be integrated into a closed heating scheme, operating on forced circulation of coolant.
• Only plastic materials should be used in the piping system.
• The induction device should be placed indoors so that the distance from it to the nearest walls and objects is at least 300 mm. The boiler should be 800-1000mm away from the floor and ceiling.

Labor-intensive installation process induction circuit in the end it will result in high-quality heating of the house. A homemade heating device will serve you for at least two decades without causing any worries.

SAV induction boiler is a well-known brand of industrial equipment

One of the varieties of factory appliances can be considered the SAV induction heating boiler. The oven is pipeline system with integrated inductor. The manufacturer of heat generators is the Volgograd research company Velebit.

SAV thermal generators are successfully used in several types of systems:

• autonomous heating;
• combined scheme;
• backup heating;
• hot water supply;
• maintaining a given temperature regime technological processes involved in flow and chamber reactors.

It is noteworthy that the SAV induction heating boiler shows high efficiency work in automated heat supply systems controlled remotely. Established industrial production electrical installations three classes with power ranges: 2.5-10 kW, 15-60 kW, 100-150 kW.

Heat generators type VIN

Vortex induction heating boiler (VIN) is intended for heating and hot water supply of private residential buildings, country houses and commercial and public facilities. Depending on the power level, two types of heaters are produced: single-phase and three-phase. More powerful models can be successfully used in heating system devices of industrial enterprises.

Let's sum it up

Induction heating boilers in Ukraine began to be used back in the late eighties of the last century. industrial enterprises. The development of household options began around the mid-nineties. Over the past decades electric heaters changed several times, modernizing and improving.

Today, induction appliances are worthy competitors to gas and heating element boilers. The retail chain offers many models that differ in technical parameters and cost. The price of household appliances starts from 25 thousand rubles. are much more expensive - over 100 thousand. Making a thermo-generating device with your own hands will allow you to significantly reduce the cost of arranging home heating.

DIY induction heating boiler - profitable option, which will help to heat economically a private house, apartment or non-residential building.

Such devices have high performance and a simple design. The operating principle of this system based on induction electricity.

The advantages of the heating device are the elements included in the composition that can withstand heavy loads. The risks of early heating boiler breakdowns are minimal. And also in the design of the device in question there are no detachable connections, which guarantees the absence of leaks. A home-made heating boiler operates silently, which makes it possible to install it in a convenient place.

Installation of an induction boiler for heating a private house

The equipment is intended to convert electricity into heat energy using the device.

Induction units can quickly increase temperature coolant, unlike heating elements. An important part of the device is the transformer (inductor), which consists of two types of winding.

A current is generated inside, which is of the vortex type, then the energy is supplied to a short-circuited coil, which also serves as a housing. When the secondary winding receives sufficient quantity energy that instantly converted into heat, heating the coolant.

Inductor

This element is an important component devices in which an alternating magnetic field appears, The device consists of two types of winding- primary and secondary. Made from stainless wire on a plastic body. This method increases the efficiency and productivity of the unit. To make the body of the device you will need a thick plastic pipe diameter 5 centimeters. It will serve as the basis of the induction coil and will be part of the heat pipe.

Inverter

This component accepts household type electricity and converts it into high frequency current. After which the energy is supplied to the primary winding of the inductor.

A heating element

For the preparation you will need two metal pipes , which have a diameter 2.5 cm. The products should be welded together, making the part shape round. The mechanism will serve not only as a heating element, but also as the boiler core.

Photo 1. DIY induction boiler. Located inside the structure a heating element.

Pipes

One pipe serves as For the flow of coolant into the boiler, second for supplying heated water to the heating system.

Reference. The principle of calculating the inductor depends on the required boiler power to heat the room. Calculation formula: 1 kW per 10 square meters area of ​​the room, with ceiling heights not exceeding three meters. For example, a room with a total area 160 m2 will heat an induction boiler with power 16 kW.

The mechanism of heating from an induction cooker

Design boiler is based on electric inductors, which include 2 short-circuited windings. The internal winding converts the incoming electrical energy into eddy currents. Inside the unit there is electric field, arriving after the second round.

The secondary element functions as a heating element heating unit and boiler body.

Transfers the generated energy on the coolant of the heating system. Special oil, purified water or non-freezing liquid are used as coolants intended for such boilers.

The internal winding of the heater is exposed to electrical energy, which contributes to the appearance of voltage and the formation of eddy currents. The resulting energy is transferred to the secondary winding, after which the core heats up. When the entire surface of the coolant has been heated, it will transfer the heat flow to the radiators.

How to make the device yourself

You can make an induction boiler with your own hands, the main thing is to follow the instructions below.

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Required tools and materials

• Wire cutters, pliers.
• Circulating pump.
• Inverter welding.
• Ball valves and adapters will be required when installing the unit to the heating system.
• Copper, steel or stainless steel wire. It is better to purchase new materials, since it is better not to use winding from old coils. Wire cross-section suitable for winding the pipe - 0.2 mm, 0.8 mm, 3 mm.
• A piece of plastic pipe - frame designs.

Work order

To assemble a simple induction boiler you will not need to use complex instruments and expensive materials.

All you need is an inverted type welding machine. Basic and step by step steps manufacturing:

1. Cut steel or stainless steel wire into pieces using wire cutters from 5 to 7 cm.
2. Plastic pipe for assembling the device body with a diameter of 5 cm. The pipe should be tightly filled with cut pieces of wire and laid so that there is no empty space.
3. A fine-frequency metal mesh is attached to the end parts of the pipe.
4. Short lengths of pipe are attached to the bottom and top of the main pipe.
5. Wrap the pipe tightly with copper wire, number of turns not less than 90. The same distance should be maintained between the turns.

Important! All exposed copper wire should be insulated special materials, which have good electrical and thermal conductivity. Induction boiler requires mandatory grounding.

1. Special adapters are connected to the body of the heater, designed for insertion into heating or plumbing structures.
2. A circular pump is installed.
3. An inverting element is connected to the finished coil at 18-25 A.
4. The heating system is ready to be filled with coolant.

Attention! Do not start the heating boiler if there is no coolant in the design. Otherwise The plastic material of the case will begin to melt.

The result is an inexpensive, uncomplicated unit that will effectively heat the room being served.

A heating system is suitable for installing an induction system. closed design with pump, which will create water circulation in the pipeline.

Pipes made of plastic are also suitable for installation work when connecting a homemade heating device.

When installing, be sure to maintain a distance from nearby objects. According to safety rules, there must be a distance between the heating unit and other objects and walls. about 30 cm or more, from floor and ceiling 80 cm and more. It is recommended to install a device for measuring liquid pressure in a confined space and a manual air vent at the outlet pipe.

How to connect a boiler with your own hands, diagram

1. Source direct current 220 V.
2. Induction boiler.
3. Group of safety elements (device for pressure measurement liquids, air vent).
4. Ball crane.
5. Circulation pump.
6. Mesh filter.
7. Membrane tank for water supply.
8. Radiator.
9. Heating system fill and drain line indicator.

To ensure the warm and cozy comfort of his country house, a person, first of all, thinks about how to heat his home. First of all, it comes down to choice. heating equipment.

The main selection criteria heating units are the efficiency of their use, as well as the minimum cost of paying for energy resources.

Based on these criteria, many people believe that the most optimal equipment for a private home is electrical. But one can safely argue about the effectiveness of their use due to the fact that gas and electricity are constantly becoming more expensive, and this, in turn, does not reduce the cost of heating a home.

We invite you to familiarize yourself with this alternative option heating a country house, how to use it. Therefore, in this article we will talk in detail about the induction boiler and its technical specifications, and also describe the process of creating this unit with your own hands.

Device

This type of modern heating equipment, such as an induction boiler, consists of the following structural components:

1. Inductor. This element is the most important component of the induction unit. This is a kind of transformer, the circuit of which has two windings:
   • the primary winding, as a rule, is wound on the core, and it is in it that an electromagnetic field is created, which forms vortex flows;
   • the secondary winding, which is also the boiler body, receives eddy currents and transfers energy directly to the coolant.
2. Inverter. This component of the boiler unit can also be called a converter. In other words, the main function of the inverter is that it takes ordinary household electricity and converts it into high-frequency current, which is supplied directly to the primary winding of the inductor.
3. A heating element. This is the same core, which can be represented in the form of a metal pipe.
4. Pipes. One of them is designed to supply coolant to the boiler, and the other supplies heated water directly to the heating system.

Specialist's note: The inductor is calculated depending on how much boiler power is needed to heat the home.

As a rule, the boiler power is calculated according to the following formula: 1 kW per 10 m2 of room, provided that the ceiling height does not exceed 3 meters. For example, if the total area of ​​the house is 130 m2, then, accordingly, you will need an induction boiler with a power of 13 kW.

Principle of operation

To understand how an induction unit functions, you need to familiarize yourself with the following important points:

• water enters the boiler unit through the inlet pipe;
• the inverter turns on and high-frequency current is supplied;
• vortex flows begin to first heat the core, and then the entire heating element as a whole;
• the resulting heat is transferred directly to the coolant;
• The heated coolant is transferred to the heating system through the outlet pipe using hydrostatic pressure.

Expert advice: The coolant in an induction boiler can be water, antifreeze, oil and other petroleum-based liquids.

Analyzing the design and operating principle of a boiler of this type, one can involuntarily come to the conclusion that an induction boiler unit can be completely constructed with one’s own hands, without having too deep knowledge of physical phenomena.

Materials and tools

Before you start assembling an induction boiler, first of all, you need to make sure that you have all the necessary materials for its manufacture, as well as that you have the tools required for the job at hand.

For construction you will need:

• a piece of plastic pipe that will serve as the body of the unit;
• steel or stainless wire, which will serve as a kind of heating element;
• copper wire is necessary to create an inductor;
• ball valves and adapters will be needed to connect the induction boiler to the heating system;
• inverter, preferably from a welding machine;
• wire cutters;
• pliers.

When everything is ready from the above list, you can proceed directly to assembling the boiler unit.

Operating procedure

The design of an induction unit comes down to the following main and sequential manufacturing steps:

1. Steel or stainless steel wire is cut with wire cutters into lengths from 3 to 7 cm.
2. The plastic pipe is tightly filled with cut pieces of wire. It is important to know that the wire must be laid in such a way that no voids are formed inside.
3. A metal mesh is attached to the ends of the pipe to prevent pieces of wire from spilling out.
4. Nozzles are cut into the top and bottom of the pipe. The lower pipe is needed to supply coolant to the boiler, and the upper pipe is needed to supply it to the heating system.
5. Copper wire is wound over the pipe, and the condition must be met that the number of turns is at least 90.
6. The ends of the wire are connected to the inverter connectors.
7. Using adapters and ball valves, the boiler is connected to the heating system, and a circulation pump is also installed, if one was not included in the heating circuit.

Important point: The supply of high-frequency current to the induction boiler should be done only after the circulation pump is turned on and the unit is completely filled with coolant!

Advantages

A boiler unit assembled by yourself will have a number of advantages, among which the following important points can be highlighted:

• rapid heating of the coolant in the boiler in 3–5 minutes;
• the minimum heating temperature of the coolant is 35 0C;
• the magnetic field, in addition to creating thermal energy, creates vibrations that perfectly prevent the appearance of scale;
• the efficiency is close to 100%, in other words, all electricity is converted into heat with virtually no losses;
• during operation of the unit, no combustion products are emitted, as a result of which there is no need to construct a chimney, as well as frequent maintenance;
• The period of uninterrupted operation of an induction boiler can reach up to 30 years due to the fact that the design of the unit does not provide mechanical movement parts, and as a result, there is no wear or damage to components.

Thus, we have revealed all the characteristics of an induction boiler unit, and also pointed out all the nuances of making a boiler with your own hands. We sincerely hope that all our tips and recommendations outlined in this article will become a desktop guide for you when assembling an induction unit with your own hands.

Watch the video in which advanced user demonstrates the design and operation of a homemade induction heating boiler: