From induction hob

An induction boiler can also be made on the basis of induction hob... To do this, disassemble the heating element of the tile and use copper wire for winding on a core made in the above way.

The tile control unit is used to power the resulting winding by setting required power on the touchscreen control panel.

However, this method has significant drawbacks:

• For the successful operation of such a homemade boiler, you need to calculate the parameters of the inductance of the newly assembled coil. They may not match those for which the tile electronics are designed, as a result of which the control unit may fail. For calculations, you need to have good knowledge in the field of electrical engineering and be able to understand the connection diagram;
• Most stove models are equipped with an automatic shutdown 2-3 hours after the start of the burner. This will lead to regular shutdown of the boiler;
• Induction-type tiles usually have a power of no more than 2.5 kW, therefore, they are suitable only for conversion to a low-power boiler.

Errors in the device induction boiler from tiles are shown in the video:

An easier way to use an induction hob, excluding disassembly of the device and installation of a new circuit - install a sealed stainless steel tank on it suitable size with inlet and outlet fittings and connecting it as a boiler to the heating system. Almost everyone can handle such a connection scheme.

In the presence of necessary knowledge and the ability to understand the schemes, you can follow the example of the author of the video and assemble a functional induction boiler from a tile, modifying its scheme.

Dry type heater

The principle of operation of an induction boiler involves the use of water or other liquid not only as a heat carrier, but also to cool the core. But the heating of the secondary winding, the role of which in this device is played by a pipe with water, will also occur if it consists only of metal.
The degree of heating in this case depends on the ratio of the strength of the electromagnetic field created by the winding and the mass of the core metal. Having made the calculations, you can create a dry induction heater with your own hands from metal pipes and copper windings, as shown in the video.

The use of an induction boiler is cheaper than a conventional electric boiler with heating elements, and homemade construction will significantly reduce the cost of its installation. Similarly, you can assemble a water heater flow type for installation in the country, choosing a device of the required power.

Today we will talk with you about induction heating... Many are trying to present induction boilers as something innovative, which supposedly will save our money and ensure the existence of our heating system. What is it really?

In fact, induction boilers are very expensive units, large-sized, inconvenient to use and not endowed with a sufficient number of properties and qualities that are necessary for the normal operation of a modern electric heating boiler.

Those people who invent these boilers and try to sell them to you do not tell the consumer anything about these aspects of their products, but only expose them to the light. positive traits... Here we will display all the pros and cons of induction heating at home.

Most often, manufacturers of induction heating boilers are compared with traditional ones, and traditional ones are 99% of all electric boilers on the market.

Boilers are always compared according to the following scheme: the imaginary flaws of the heating elements and the positive qualities of induction heating of the house are highlighted.

For example, such indicators:

• There are a lot of heating elements;
• That supposedly one or even several heating elements can fail;
• It is said that the boiler may lose its working capacity;
• They pay special attention to scale, which can appear as a deposit directly on the very surface of the heating elements;
• The complexity and cumbersomeness of the design is due to the sufficient big amount electrical contacts;
• The creators of induction boilers claim that their boilers last longer due to the fact that they can soften the water;
• Absolutely unfounded and unfounded assertion that periodic replacement of gaskets, heating elements and risers is required.

Criticism of the wrong heating boilers

It is indicated that there are no heating elements in a high-quality induction heating boiler. Of course, this is not so, because without a heating element, we would have nothing to heat the water with, that is, it is always there in any boiler!

In the overwhelming majority of installed electric boilers, the heating element does not fail almost the entire service life of the boiler.

If the heating element still fails, then we can easily change it, since it is under the flange or on the thread. If suddenly, for no reason at all, the unit breaks down during induction heating, then it is almost impossible to replace it.

Now about the scale ... It exists in a kettle, but in home heating systems it does not exist, because there water does not boil at all, deposits are present always and everywhere, in any systems: on gas, diesel, wood-burning, electric, heating, electronic, induction boilers. It doesn't matter which boiler. Sediments will always be present as these are deposits that are always present in the water. This is not a disadvantage or an advantage, but a reality.

About electrical contacts. Manufacturers write that there are no electrical contacts in an induction heating boiler. But in fact, electrical contacts are always and everywhere. And if we talk about heating boilers, then electrical contacts, terminal blocks. absent there for many years. There are electrical contacts under the screw connections that do not require tightening, and there are spring clips which are also not worth servicing.

About the service life of the heating element and the numbers arguing this period. It is not clear where these figures are taken from and how they are confirmed. In addition, here the authors confuse water supply and heating systems. The heating system does not have as many impurities as there are in the water supply system. Water softening in the carrier of the heating system is not required.

It should be noted that in an induction heating boiler, the replacement of units is practically not possible at all, because everything is in a sealed flask and it must be cut in order to pull something out of there.

We reveal the main myth of induction heating

Recently, they have already stopped saying that the efficiency at induction heating higher than the efficiency of a heating boiler 2-3 times. But the supporters of the induction boiler argue that the heating boiler quickly loses its properties and goes out of service, because scale builds up on it!

It is said that the power of the heating boiler decreases by 15-20% during the year. Is it really?

Yes, deposits are not really present, but the heating system and the water supply system should never be confused. For example, scale actually forms in the water supply system, just like it forms in the kettle that we see in the kitchen every morning. This never interferes with our work, we know, and there is no doubt that water boils in a kettle anyway.

On the contrary, in the heating system known to us, impurities rarely enter the water. The deposition layer is very thin and does not pose any significant obstacle to heat transfer.

If the energy has gone somewhere from the network, it does not completely disappear anywhere. It turns into absolute heat and the heat carrier is heated, which, in turn, heats up with exactly the same efficiency as it was heated before and as it will always be heated. If it were not so, the ten would have burst with surplus energy.

As soon as scale appears, heat exchange takes place at a higher temperature. There can be no talk of any decrease in efficiency, no matter what temperature is in the heating element.

Cost and maintenance of induction heating boilers

Induction heating boilers are 2 times more expensive than heating boilers. Despite the fact that they are qualitatively lower, as we saw from a critical analysis of their so-called "advantages".

They also weigh 2 times more than heating boilers, have large bulky dimensions, and all the electronic filling is outside. While in heating boilers, it is hidden in the boiler itself. And here there is an additional box, which sometimes there is nowhere to place, especially when it comes to a very small room for a boiler room.

In induction boilers there is no automatic power selection, that is, only a heating element boiler can choose itself at what power it needs to work at the moment.

With induction heating at home, there will be constant voltage surges and overloads, and in heating boilers, the relay works very quietly. And you can only notice it as quiet clicks, being next to a working boiler.

Even in induction boilers, thermal protection for overheating and freezing is completely absent, which is available in heating boilers.

There are no sensors in induction heating boilers low pressure water. There is no error indication that allows you to accurately establish the malfunction due to which it got up (the corresponding indicator will blink on the display of the heating boiler).

But the most important thing that induction boilers do not have is the ability to connect a boiler!

To buy or not to buy an induction heating boiler?

Of course, you yourself must make a decision for yourself which boiler you should buy: a high-quality heating element or still a more bulky, less efficient and expensive induction boiler.

But you must consider the following: an induction boiler is not a unit for heating systems, especially if they are individual and do not require large capacities. Of course, it is impossible to do without induction heating in some industrial areas of technical production, but this applies to production tasks.

Still, there is nothing to drag a complex, heavy and expensive unit into your house. You can get by with a more elegant solution - a heating boiler.

Manufacturers of induction heating boilers deliberately give incomplete information about their products, which misleads those who make a choice in the direction of one or another boiler. It is important here to tell the truth and show your product from all angles so that people know what they are buying.

An expert review of an induction heating boiler

One of the leading Russian experts in the field of boiler installation and maintenance in Russia Vladimir Sukhorukov in one of his YouTube programs "Induction boiler - a big misunderstanding", released on December 12, 2017, he proved in detail and in detail that induction heating boilers are inferior to traditional heating boilers.

Vladimir Sukhorukov found no reason to use an induction boiler in a boiler room. Moreover, he strongly advises not to buy induction boilers under any circumstances when there are high-quality heating boilers that work stably and smoothly.

Perhaps you need to heed the advice of an expert.

Autonomous heating in a private house is a very difficult and important task that can be solved by using electric boilers. Currently, there are not only models on heating elements, but also more economical products - electrode and induction. The induction electric boiler is very popular due to its high efficiency and, accordingly, less energy consumed to heat the room. Let us consider in more detail the possibilities of induction boiler equipment, its advantages and disadvantages.

The principle of operation and design of the induction heater

Induction is a physical phenomenon based on eddy currents, which was discovered and investigated by the French physicist J. BL Foucault. Induction boiler equipment in his work, he uses Foucault currents, functioning according to the principle of that very electromagnetic induction.

An alternating voltage is applied to the coil, an electromagnetic field is formed, which provokes the appearance of eddy currents that heat the metal. Water is heated in a heat exchanger and, circulating through the system, heats the premises in a private house.

Modern heating units based on induction consist of the following elements:

• heat exchanger or core;
• terminal box;
• inductor;
• control cabinet;
• conductors;
• inlet and outlet branch pipes.

For ease of operation of the equipment, its design may include additional elements... In fact, a boiler of this type is an inductor that is housed in a small but very heavy iron alloy casing.

At the same time, instead of the core, in some devices, a conventional metal tube with a coolant is mounted. However, the presence of a core increases the heat transfer area.

Such a system has a high degree of reliability, since the induction coil is firmly sealed in a sealed case, without contacting directly with the coolant. The occurrence of holes in the turns is almost impossible, since they are not wound too tightly, and in addition they are filled with a special insulating compound.

All this is enclosed in a thick-walled massive case, which guarantees long term exploitation. Manufacturers give a 5-10 year warranty, but boiler equipment sellers claim induction electric boiler can last about 30 years without Maintenance.

Design features of two types of boilers

Before purchasing an induction electric boiler for autonomous heating at home, you need to decide which type of equipment is most suitable for your case.

There are two types of eddy current-based electric boilers used to heat the coolant - SAV and VIN (vortex), which have characteristic differences.

• The SAV electric boiler does not require an inverter for its operation. In this case, the voltage from the network of 50 hertz is supplied directly to the winding (kutushka). As a result, the secondary winding, which is a system of metal pipes of the heat exchanger, is heated by Foucault currents, rapidly heating the water. The heat carrier with the help of a circulation pump moves forcibly along the heating system circuit.

Induction boilers SAV types are produced for voltages of 220V and 380V. Equipment with a power of 2.5 kW can heat a room up to 30 m2. You can purchase this SAV boiler electric unit together with automation and a control unit for 27,000 - 32,000 rubles.

• Induction electric boilers of the VIN type (vortex). These are models of the new generation, for which a special inverter is required to convert the frequency. electrical network... This technical solution allows to make structures smaller and lighter than SAV equipment. In this case, the heat exchanger is made of a ferromagnetic alloy, and the magnetic core and the secondary winding are not only the heat exchanger, but also the body of the unit.

An induction boiler of the VIN type with a power of 3 kW will easily heat a room with an area of ​​40 m2. An electric boiler VIN in a complete set with an automation unit, a pump and a circulation pump costs a little more - from 37,000 to 40,000 rubles.

Advantages of electric induction boilers for heating

Boiler sellers are in full praise for the exceptional performance of induction units. Some of the words are really true, the other part is fiction. For example, consultants state that induction devices save up to 30% of electricity in comparison with electric boilers on heating elements. However, the statement is somewhat exaggerated.

The fact is that both types of boiler equipment consume approximately the same amount of electricity. But induction boilers heat up the coolant faster than the heating element, including due to the less inertia of the system. Therefore, if you turn off the unit in time, when the room has warmed up enough, then the electricity bills will really be less. In this case, it is better to equip the heating system with automation with a control unit.

The efficiency of an induction boiler is really very high and is close to the indicator of ± 98%, like that of heating elements or electrode devices. However, induction electric boilers for heating a private house cost more than conventional heating elements. The control unit and automatics, the special alloy of the body and the winding increase the cost of the equipment. At the same time, like others technical devices, induction heating boilers have advantages and disadvantages.

We list the main advantages of electric induction boilers:

• high reliability, however, it must not be allowed that there is no liquid in the system;
• any type of coolant can be used;
• there is no need to replace any elements of the device;
• scale is not formed due to constant high-frequency vibration;
• long service life of the boiler up to 30-35 years;
• saving resources up to 25%, thanks to the heating rate;
• monolithic body made of ferroalloy eliminates the possibility of leakage;
• do not require a separate room and arrangement of ventilation;
• small size - a pipe section from 40 cm to 1 m in length;
• silent during operation;
• does not need service;
• the coolant heats up very quickly - in 5-7 minutes;
• autonomous system of work;
• simple installation.

The disadvantages of these units can be called a large weight with small dimensions - from 30 to 40 kilograms, as well as the high cost of equipment. In addition, for cottages with 2-3 floors, it will be necessary to install an additional high-power circulation pump.

Features of installation of induction heaters

Current induction electric boilers for heating should only be installed with a closed circuit with a membrane expansion tank and a circulation pump. Forced circulation is needed primarily due to the fact that intense heating and a small volume of the heat exchanger prevent the creation of natural circulation water will boil before conditions for gravitational circulation are created.

In the event that an induction heating electric boiler is used as a heat generator, then it must be used in the circuit plastic piping whether to isolate metal pipes from the boiler by installation plastic fittings... The boiler must be provided with mandatory and high-quality grounding.

Installation requirements, as for all electric boilers: from the floor or ceiling surface - 80 cm, from the wall - 30 cm Installation of a safety unit, which includes a pressure gauge, air and safety valves, is mandatory as for everyone closed systems heating. In private homes, they usually use typical system connections.

Installation of induction boilers must be carried out in accordance with the instructions or the requirements specified in technical passport... The device should be located strictly in a vertical position, the lower inlet branch pipe is connected to the return, the upper one, respectively, to the supply. For this, only metal or metal-plastic pipes should be used.

If you decide to install an electric boiler yourself, you must remember about grounding. In the immediate vicinity, it is necessary to install a safety group, a control cabinet, at the inlet - filters and a flow sensor.

At the time of purchase, you need to carefully look at the power of the equipment, which does not decrease during use. The optimal ratio is 60 watts per square meter. In order to calculate this characteristic, it is necessary to take into account the dimensions of all rooms.

If there is not enough thermal insulation, you need to take a more powerful heating boiler. Today's induction units can keep temperatures low in rarely used rooms. Accordingly, an electric boiler of 6 kW is quite suitable for a house.

Thus, the simplest and most optimal solution for heating is the installation of an electric boiler. They are really more economical due to the lower inertia of the system, reliability (if you use a well-thought-out technology and quality materials) and good work of the automation, which includes only the system for maintaining the temperature. This equipment is installed as a backup in private houses and for heating offices and trade pavilions.

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

It will be more difficult for those people whose housing construction is located in places far from the gas supply lines, and the purchase of cylinders is intermittent. 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 invaluable service in the study and selection of the 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 generated around the device. If you put a ferromagnet (an attractive metal) inside, it will heat up very quickly.

The simplest heating is a wire coil with a dielectric tube, inside which is a steel rod. By powering the device from the electrical network, we will get the heating of the core. It remains only 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 it, the high temperature is transferred to the coolant (water or antifreeze). Intense heating of the liquid creates convection currents. Their power is sufficient for productive work a small heating circuit. In systems with long pipelines, it is recommended to install a circulation pump.

Internally device

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

Please note that an induction hob heating boiler does not fundamentally differ 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 differs from the induction heating boiler. User reviews indicate that such units work equally effectively at any current frequency. That is, the 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 drops and monitor heating indicators.

Induction heating boilers: reviews and complaints

Lack of information about the device and the principles of operation of heat generators creates many questions. Having consulted a specialized store, you can sometimes hear the extremely positive characteristics that induction heating boilers are awarded. Reviews of trade managers are often sly, because there are no ideal devices in the world.

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

Key points

Innovative development

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

Profitable acquisition

We are assured that an induction heating boiler can save up to 30% of electricity. Reviews of 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 effective work heating device. As much as we would not like it, but the facts confirm the large amount of electricity consumed by an induction heating boiler. The reviews of any person, even a little familiar with the laws of physics, agree with the obvious fact: to obtain one kilowatt of heat, you need to spend the same amount of electricity.

Third, some of the heat generated is wasted. For the sake of justice, it is worth noting that she still remains in the house, and does not fly into the chimney.

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

Durability

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

First, induction appliances are incapable of mechanical wear. There are no moving parts in them, so there is simply nothing to break.

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

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

Fourthly, the quality of the transistors affects the duration and reliability of the heater. It depends on them how long induction heating boilers will serve flawlessly. Feedback from grateful owners confirms the fact of a ten-year warranty. In practice, cases have been noted when heat generators have worked without interruptions for more than thirty years.

The above arguments unanimously recognize the actual durability of induction boilers. This advantage looks especially convincing against the background with heating elements, in which replacement is required. internal parts after several years of operation. It is not uncommon for heating elements to not even reach their end of life.

The invariability of the parameters of work

Furnaces based on heating elements gradually lose power due to the formation of scale on the heating elements. In this, 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 so true.

The great influence of scale on the reduction of 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, the formation of a large scale layer is impossible in a closed water heating ring.

In induction appliances, the formation of deposits is completely excluded. Even if the core comes into contact with the liquid heat carrier, it still will not overgrow limescale... Deposits simply physically cannot be held on the surface of the rod due to its constant vibration under the influence of the electromagnetic field. In addition, water bubbles are constantly formed on the hot core, which destructively affect any scale.

Thus, the immutability statement technical characteristics in induction appliances quite rightly. As for heating boilers, here the thesis is not entirely true.

Quiet operation

Sales agents are quick to assure us that induction appliances do not make any sounds when switched on. Is this really so?

There are no sound vibrations in any electric heaters. Minor noise levels may be generated by additional devices - circulating pumps. Modern market proposes big choice coercive devices, among which you can find completely silent. So, the statements of the sellers can be considered fair.

Compactness

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

Security

It is not worth arguing that the heat generator is absolutely safe. In the event of a coolant leak, the heating of the core will still continue. If you do not turn off the device, then it will melt very quickly. In order to exclude such situations, you need to take care of the installation during installation additional device, which 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 effective heating of a house with minimal costs for arranging a heating system pushes many consumers to think about making their own equipment. Having examined carefully the workers and constructive principles devices, you can assemble a homemade induction heating boiler. The main assistant in the matter will be a schematic image of the heating piping, which must be constantly kept near you, checking and specifying the installation on it.

You do not 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 able to provide rooms with a temperature of 20 degrees. An electronic programmer of operating modes can be purchased for a home-made boiler. 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 regime from a distance.

Where to begin

Getting started, you need to prepare necessary materials and suitable tools. For the convenience of manufacturing, it is advisable to prepare an apparatus for welding inverter type... With its help, the seams in the generator body will be connected and the pipelines will be attached. Also, a high-frequency converter (inverter) is needed in the heating circuit device.

From materials you may need:

• pieces of stainless steel wire or wire 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 inner diameter of up to 50 mm - the basis for the boiler body;
• enameled copper wire - the main heating element;
• adapters - connecting fasteners;
• metal mesh - a barrier between the coil and the walls of the case.

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 the homemade heat generator, it is advisable to insulate open areas coils. When choosing a material for protecting a copper wire, you need to take into account its electrical and thermal conductivity.

The considered scheme of an induction boiler, made with his own 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 the nondescript appearance.

The second option for installing the boiler

You can try to do heater increased power. His device will cost a little more than the first option, but later all costs will be fully paid off. excellent quality and high work efficiency.

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

Features that must be taken into account when installing a boiler.

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

Time-consuming installation process induction circuit as a result, it will result in high-quality heating of the house. A homemade heater will serve you for at least two decades without causing any worries.

Induction boiler SAV - a well-known brand of industrial apparatus

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

SAV thermogenerators are successfully used in several types of systems:

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

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

Heat generators type VIN

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

Let's sum up

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

Today induction appliances are a worthy competitor to gas and heating elements boilers. The trading network 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 thermogenerating apparatus with your own hands will allow you to significantly reduce the cost of arranging home heating.

Induction electric heating boilers in many respects surpass the still more common boilers with. The English scientist Michael Faraday discovered electromagnetic induction. The principle of its operation began to be applied in the production of generators and electric motors, transformers.

But only after some time, human thought reached the point that this principle can be applied to. It was only in the nineties of the XX century that the first induction electric boilers for home heating began to be produced.

Boiler design

Boilers of this type have a very complex structure. The design is a multi-layer mechanism.

1. The first layer in it is outer case which is made of metal.
2. The second layer is insulation made in two layers (thermal insulation and electrical insulation).
3. The third element of such a boiler is core... It consists of two walls. It is a ferrimagnetic steel pipe (two pieces) with a wall thickness of 10 mm. These pipes have different diameter and are inserted into each other. Inner pipe surrounds the winding, this tube carries the function of the core, and the outer tube is the heating element.

Principle of operation

Heat carrier in induction electric boilers heating most often comes out water. It enters the pipe, which is welded to the bottom of the boiler. Water flows through the gaps between the outer pipe and the walls of the boiler drum. During this time, it heats up to the required temperature, after which it enters the core (its inner diameter). Then the water rises up the pipe to the outdoor heaters.

Why choose an induction boiler for home heating

1. The coolant is double-heated;
2. No scale builds up on the pipe walls because the magnetic induction creates vibration on high frequencies... The boiler will last a very long time;
3. The minimum heating time even in comparison with heating elements. This is due to the lesser degree of inertia;

How to choose an induction boiler

There are two types of induction boilers:

• single-phase,
• three-phase.

Many devices have a dedicated control panel. It allows you to set the parameters for the heat of the room.

Choosing a boiler of a certain power, it must be calculated as follows: for one square meter area will need 60 watts. If the tenants do not live permanently in the house where the boiler is planned to be installed, then this indicator can be shortened.

An induction boiler with a capacity of 60 kW is enough for a house with an area of ​​120 square meters.

Advantages of induction heating boilers

• Operates on both AC and DC mains. Low voltage values ​​are allowed;
• Heating elements, which often fail and require replacement, are absent in this type of boilers;
• The likelihood of leaks is minimized by overall design boiler. It is welded tightly and reliably;
• Boilers of this type are completely free of scale;
• High category fire safety as well as electrical safety. It is not necessary to install the boiler in a special room, does not require the installation of a chimney;
• The efficiency is 100% and this indicator does not decrease over the years;
• The manufacturer's warranty for the core is a quarter of a century;
• The heat carrier can be not only water, but also oils, antifreeze. The requirements for the quality of the coolant are quite mild. It is necessary to change the coolant no more than once every ten years;
• Simple self-assembly boiler;

Disadvantages of induction heating boilers

• High weight, a boiler with a diameter of 12 cm and a height of 45 cm will weigh 23 kilograms;
• High price. This is one of the most expensive types of boilers for heating houses;
• Suitable only for closed heating systems;
• For a distance of several meters, this boiler can create wave disturbances. It is not recommended to place it next to household appliances;

Economical use

In comparison with heating elements boilers, induction boilers are much more expensive. But, you need to understand that the colder it is outside, the faster the new induction heater will pay off. Heating elements boilers of the same quality and with similar operational properties fail faster. This is due to the fact that scale will form on the heating elements.

Scale in half a millimeter reduces heat transfer by 10%. The larger the scale layer, the worse the heat transfer of the boiler will be.

If we compare the power of heating elements and induction boilers, depending on the time of operation, then the first category will lose 40% of its power in four years of use. Induction boilers belong to energy saving equipment, they can reduce operating costs by 30% or more.

Induction boilers are an excellent solution for heating residential buildings. Despite the initial high cost, these devices practically cannot fail. Because they do not have a heating element. And the absence of detachable connections will completely eliminate system leakage.