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Homemade induction boilers. Induction heating boiler: advantages of application and do-it-yourself manufacturing technology. Video: The master shares the secrets of making an induction boiler on his own

Unprecedented savings, super efficiency, incredible service life and even a new principle of energy transfer. This is how the sellers of induction boilers characterize their product. It's time for us to join the high technologies of the future and find out if it is really so beautiful, it induction heating.

Induction heating, flies and cutlets

Our task in this article is to separate flies from meatballs, advertising tricks of marketers from the harsh truth of life. Let's start with the fact that the expression "induction heating", which has become popular on the people's Internet, which we deliberately placed in the title of the article, is nonsense. This, of course, will be about electric induction water heaters, which are used in conventional water heating systems. We will try to give them an objective assessment, talk about the real pros and cons of these still quite new for our market. heating appliances.

How an induction water heater works

Especially for those who counted the raven in physics lessons in the 9th grade:

Video for curious dummies: what is electromagnetic induction in simple words

Structurally, the water heating part of the induction boiler is similar to a transformer. Its first, outer contour is the winding coils connected to the power supply. The second, internal, is a heat exchange device in which the coolant circulates. When voltage is applied, the coil generates an alternating magnetic field, as a result of which currents are induced in the heat exchanger, causing it to heat up. From the metal, thermal energy is transferred to water or non-freezing liquid.

The device of an induction water heater is as simple as five cents. In this regard, craftsmen who have access to a cheap element base assemble induction heating with their own hands at home. For those who are not familiar enough with safety precautions in the energy sector, we do not recommend repeating their experience: the voltage is high, dangerous!

The work of kitchen induction cookers is based on the same principle, only there the dishes themselves serve as a secondary circuit, which must be made of specially selected metal. Such electric stoves are twice as economical as conventional "pancakes" due to the fact that there are no losses in the transfer of thermal energy from the heating elements to pots and pans. The high efficiency of such kitchen appliances attracts citizens so much that topics like “heating with an induction cooker” are seriously discussed on the forums. Yes, and some of our readers ask the question of how to organize heating with an induction stove in a private house. We answer: theoretically, this is even possible, but it is extremely inconvenient: you have to constantly run and pour water into the pan so that it does not boil away. In addition, only the kitchen will heat up, there will be a lot of steam, it’s a pity for the dishes.

In order for the water heater to turn into a full-fledged heating boiler, it must be equipped with control devices that allow maintaining the temperature of the coolant at a given level. Simple automation is offered by many manufacturers of induction boilers, but a competent electrician will be able to independently assemble the circuit.

Electrical control diagram for an induction boiler connected to a 220 V line

Same for 380 V

Who invented it

Let's leave aside those sellers who talk about the "new principle of energy transfer" that is allegedly used in induction boilers. These people are blatantly illiterate or lie shamelessly, looking at buyers with innocent eyes. Let's see how much innovation is in this device and who can be considered its creator.

The honor of discovering electromagnetic induction belongs to Michael Faraday, it happened in 1831. Inductive heaters went beyond laboratories in 1900, when the first industrial induction steel furnace was launched in Sweden. Since then, to this day, such heaters and furnaces are widely used in production, but until recently they were not used for heating. Of course, well-known manufacturers of heating equipment explored the possibility of heating the coolant due to electromagnetic induction, but the use of this technology was considered inappropriate. So, small domestic enterprises that have established small-scale production of such devices are “ahead of the rest”. But we can confidently say: the inductive heating boiler does not carry any new technical ideas.

How economical is a super-economical boiler

To begin with, let's say that heating with electricity is initially the most expensive. In terms of cost, electric heating cannot compete not only with cheap natural gas and solid fuel, but even with liquefied gas and diesel fuel. The only way to reduce costs is to install a heat accumulator in the house and heat it mainly at night, when there is a preferential tariff for electricity.

To put it simply, a heat accumulator is a large, well-insulated reservoir of liquid that will store reserves of "cheap" nighttime energy during the day.

Sellers claim that induction water heaters for heating have fantastic high efficiency- one hundred%. And this is true. However, it should be noted that all heating systems have exactly the same efficiency. electrical devices, regardless of their type. Consumed electric power completely converted to heat. However, it should be taken into account that not all energy is transferred to the heat carrier, part of it is dissipated from the heat exchanger in the boiler room. Which, in general, does not matter, because it should also be warm in the furnace. But in ordinary electric boilers the heating element is completely immersed in the liquid and the energy of the heating element is used more fully.

If we delve into the topic of savings, it should be said that the most economical type of electric heating is warm cable or film floors. Greater efficiency is achieved due to the optimal distribution of temperature in the room and the absence of losses for the operation of mechanical devices. Unlike water heating, there are no circulation pumps.

With heated floors, the temperature in the room is optimally distributed: feet are warm, head is cold. Radiators give the opposite picture. In a room with warm floors you can maintain a lower average temperature (and use less energy), while the person will feel even more comfortable than usual

Conclusion: in terms of efficiency, an induction water heater is no better and no worse than other electrical appliances intended for heating, it has standard characteristics.

How long will an induction boiler last?

Manufacturers claim that the induction boiler will last at least a quarter of a century. And this may well be true. There are no moving parts in the device, there is no mechanical wear. If the copper winding and coil are made properly, they can last for many decades. The coolant core will be constantly eroded by the coolant, but being made of good steel and having sufficient thickness, it is also able to work for a very long time. True, a prerequisite for the "longevity" of the water heater is its operation in the recommended temperature regime, and automation is responsible for this. We can say that a potentially induction boiler can serve its owners without breakdowns much longer than other types of heat generators for heating, and the real numbers depend only on the level of quality at which it is made. We produce and install such water heaters not so long ago, so long-term statistics on equipment have not yet been developed.

Conventional electric boilers cannot boast of such reliability. With constant operation, the heating element or the anode will last 10-15 years. They are easy to replace, but this is an additional cost and hassle.

A variant of the heating scheme for a private house based on an induction boiler. 1 - cabinet with automatic control and protection; 2 - induction water heater; 3 - hydraulic safety block (pressure gauge, valves); 4 - shut-off valves; 5 - circulation pump; 6 - filter; 7 - membrane expansion tank; 8 - heating circuit; 9 - make-up and drain line

Buy or not

So, does it make sense to buy an induction boiler for heating? Alas, we cannot give a definite answer to this question. Stories about its super-economical turned out to be a myth, reliability can be high. It may not be. The noiselessness that they say is inherent in all electric heaters, the pump can make a sound. Compactness is highly debatable.

At first glance, an induction boiler (right) is much more compact than a heating element boiler (left). However, in the case of the latter there is a bunch of necessary equipment which will be needed for induction too. And it’s not a fact that located at random, it won’t take up more space on the wall.

Otherwise, we do not see the advantages of an induction boiler over conventional ones. But there is a drawback: it costs more. Or, to be more precise, they ask for more money. Moreover, a good heating element boiler for its money is a balanced device, completely ready for installation and operation. And the induction heater still needs to be completed additional equipment. In our opinion, marketers and sellers, presenting us with an ordinary product as an exclusive, are trying to “remove chips”. Get more profit than other products. Although, the downward trend in prices has already been outlined and it can be expected that over the next few years induction boilers fair prices will be set. Or they just stop making them.

If you are considering purchasing an induction water heater for heating your own home, we recommend talking to professional heating engineers, both designers and practitioners. Experienced specialists monitor trends and have the opportunity to evaluate new types of equipment based on their own practical experience. Equipment vendors are also worth listening to, but what they say should be taken with a grain of salt.

Video: induction boiler

A do-it-yourself induction heating boiler is a profitable option that help to save heat private house, apartment or non-residential building.

Such devices have high performance and uncomplicated design. The principle of operation of this system based on induction electricity.

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

The device of an induction boiler for heating a private house

The equipment is intended for converting electricity into heat energy with the device.

Induction units able to quickly increase the 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 formed inside, which has a vortex type, then the energy is supplied to a short-circuited coil, which simultaneously serves as a housing. When the secondary winding receives enough energy, which instantly converted into heat, heating the coolant.

Inductor

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

inverter

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

A heating element

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

Photo 1. DIY induction boiler. A heating element is located inside the structure.

Branch pipes

One branch pipe serves for the supply of coolant to the boiler, second to supply hot water to the heating system.

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

The mechanism of action of heating from an induction hob

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

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

Transfers generated energy to the heating system coolant. In the role of heat carriers intended for such boilers, special oil, purified water or non-freezing liquid are used.

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

How to make a device yourself

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

You will also be interested in:

Necessary tools and materials

  • Nippers, pliers.
  • circulation pump.
  • inverter welding.
  • Ball valves and adapters will be required when installing the unit to the heating system.
  • Copper, steel or stainless wire. It is better to purchase new materials, since it is better not to use winding from old coils. The cross section of the wire that is suitable for winding the nozzle is 0.2mm, 0.8mm, 3mm.
  • Piece of plastic pipe frame designs.

Work order

To assemble a simple induction boiler, you do not need to use complex tools and expensive materials.

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

  1. Cut steel or stainless wire with wire cutters into segments from 5 to 7 cm.
  2. Plastic pipe for assembling the body of the apparatus 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 inside.
  3. On the end parts of the pipe, a small-frequency metal grid.
  4. Short pipe sections are attached to the bottom and top of the main pipe.
  5. Wrap the pipe tightly with copper wire, the number of turns at least 90. Between the turns should be the same distance.

Important! All open sections of copper wire should be insulated with special materials that have good electrical and thermal conductivity. induction boiler requires mandatory grounding.

  1. Special adapters are connected to the body part of the heater, designed for insertion into heating or plumbing structures.
  2. The circulation 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 plastic material body will start to melt.

The result is an inexpensive, uncomplicated unit that will effectively heat the serviced premises.

A heating system is suitable for installing an induction system. design closed type 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 keep a distance from objects that are nearby. According to the safety rules, from the heating unit to other objects and walls should be 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 closed space and a manual air vent at the outlet pipe.

How to connect the boiler with your own hands, diagram

  1. DC source 220 V.
  2. Induction boiler.
  3. Group of safety elements (device for pressure measurement liquid, air vent).
  4. Ball valve.
  5. Circulation pump.
  6. Mesh filter.
  7. Membrane tank for water supply.
  8. Radiator.
  9. Filling and draining line indicator for the heating system.

Today it is hard to believe that heating can be economical. We either pay for electricity and gas, or we burn a huge amount of natural raw materials. But there is a design that can save our wallet - an induction heating boiler, which will also be cheaper to do with your own hands.

Is it difficult to understand how it works?

For the operation of such a boiler, electricity will still be needed, but the bill will no longer be so frightening. The main advantage of such heaters in their device. They convert electricity into heat very profitably (the working environment takes almost 97%). This gives fast heating at minimal cost. working environment or the coolant for an induction boiler is most often untreated water, which is heated and carried through the heating system of the house. But for this purpose, oil or antifreeze is quite suitable.

The power conversion system consists of two windings. The first one receives current from the network, creates vortex flows that cause an electromagnetic field. It is sent to the external winding, which is also the boiler body. It is here that the heating of the coolant that goes through the pipes takes place.

The induction unit must have an inlet pipe cold water and exit hot. Usually, the input is welded from the bottom of the case, and the output from the top. The carrier is fed inside, flows around the body, heats up due to good thermal conductivity and leaves through the upper hole into the heating system. The main difficulty in creating your own boiler is to properly position the outer winding and core so that the vortex flows and the generated field effectively heat the boiler. To do this, it is important to disassemble the above scheme, accessible to the understanding of a person with an average knowledge of physics.

In addition to the beneficial conversion of electricity, such boilers also break down less often, because there is no individual static heating element. Scale does not settle on the case either, because the winding system is constantly in a state of slight vibration. The induction boiler works quietly and does not produce harmful emissions. Also, leaks of such a system are unlikely, because there are a minimum number of welds, if not none at all. The main disadvantage of the induction heater will be its price, so there are more and more homemade schemes, we will consider one of them. Also, it cannot be located near the constant presence of people, because it is a source of EMP, which means that you will need a separate room in the far corner of the house.

We collect the simplest induction boiler

The simplest heater will simply replace part of the pipe in the heating system. How realistic it is to assemble such an induction boiler with your own hands, evaluate according to this instruction.

How to assemble an induction boiler with your own hands - step by step diagram

Step 1: Choose an energy converter

At the entrance, electricity will be met. Only very advanced users can make it on their own, since we called this scheme the simplest, we assume that you simply purchase it in the appropriate store. Which of the proposed there to take? It depends on the power you expect to get from the future induction heater. On average, a 15 A high-frequency welding inverter is suitable for a small house. It is desirable to have a smooth current change function.

Step 2: Heater Body

We will not make anything complicated inside our boiler, let the water run through a heated steel wire. To do this, we take a rolled product with a diameter of at least 7 mm. Cut into pieces 5 cm long. The quantity is determined by the size of the body where we will fill them. We will make it from a plastic pipe with thick walls, and in the future we will wind an induction coil on it. Naturally, the plastic must be heat resistant. It is undesirable for the pipe diameter to exceed 50 mm. We will find out its length after we wind the coil, so take it with a margin.

Step 3: Induction coil and connection

To create a coil you need copper wire, it evenly wraps our plastic pipe. It is enough to make 90-100 turns. It is important to maintain the same indents between them. When you get the desired result, step back from the extreme turns of 10 cm and cut the pipe.

Step 4: Adapters

Now we organize the supply and output of the coolant. To do this, you need to attach the appropriate adapters. On both sides of the pipe we have a metal mesh, it will prevent pieces of wire from spilling out. From below we attach an introductory adapter through which water will flow. Then we tightly and completely fill the case with wire and close the outlet adapter from above. It is advisable to provide the inlet and outlet with a ball valve in case you decide to dismantle the boiler, then it will not be necessary to drain the water from the pipeline.

Step 5: Connection

The ends of the coil are output to the inverter, but it is still too early to connect. First, the resulting unit must be embedded in the heating system. To do this, we saw off in a suitable place a part of the pipeline of such a size that the home-made boiler located instead of it becomes without gaps. Through the adapters we fix the inlet and outlet. Now you can connect the coil to the AC inverter. It remains to put water into the system and turn on our boiler.

What conditions are necessary for the safe operation of the boiler?

It was not so difficult to assemble an induction boiler on our own, but there are several circumstances without which we will not achieve its correct operation. Such a heating unit will not function if your heating system no forced circulation of the coolant. That is, it must be a closed network with a pump that will drive water around the circuit. Also, you must be able to ground the inverter, otherwise fire safety will be in question. This unit must be connected to the network through the device protective shutdown(RCD).

It is essential that there is water in the system. Without it, it is strictly forbidden to turn on the boiler. After all, the coil is wound on plastic pipe, which is unable to withstand the temperature of a hot metal wire. Therefore, the body will simply melt, and further consequences are unpredictable.

There are no special requirements for the material itself, where the boiler crashes. It can be both plastic and metal. The main thing is that it should be a rigid structure, and not dangling hoses. Coil Location Considerations fire safety should be 30 cm from the walls and 80 cm from the floor and ceiling. If there should be some other appliances or furniture nearby, then it is also desirable to maintain a distance of about 30 cm from them.

It also does not hurt to install an automatic valve with a pressure gauge at the outlet of the boiler so that, if necessary, it bleeds the growing pressure, from which our body can crack. This will be needed if the forced circulation device needs to be turned off or the pump just suddenly breaks down. If you like this idea, then the adapter at the outlet of the boiler should be triple (two inlets for the possibility of draining water in different directions, the third for the valve). The body of the induction heater can be covered with insulating material. This will reduce heat loss and eliminate the possibility of touching the coil through negligence, which will shock. We would move this recommendation to the status of a mandatory condition.

Induction water heaters are good because they consume the least amount of electricity compared to other options for electric boilers for heating. However, not everyone can afford such pleasure, especially for use on summer cottages which are rarely visited. This is due to the high price of products, which can vary from 25 to 100 thousand rubles. In order to still please yourself with such an electric heater and at the same time save your own money, we recommend making an induction boiler with your own hands. Read on to find out how to assemble at home!

Idea #1 - Simple Vortex Heater

First of all, get acquainted with how this heating option works and what are its advantages over alternatives boilers. All questions will be answered by the video below!

Description of the advantages and principle of operation of induction water heaters

From the materials for making homemade products you will need:

  1. Plastic pipe with an inner diameter of not more than 50 mm.
  2. Steel wire, with a diameter of not more than 7 mm.
  3. 2 adapters for connection to the heating system (pipes).
  4. Metal mesh with small cells.
  5. Enamelled copper wire.
  6. High frequency inverter.
  7. insulating material.

Having prepared all the materials, you can proceed to the assembly of the induction boiler with your own hands. First of all, cut the steel wire into 5 cm pieces. After that, close one of the sides of the plastic pipe with a mesh and put the chopped wire inside. The amount of material should be such that the volume of the homemade product is completely “clogged” with wire. Further, the second end is closed with a metal mesh, which will prevent the wire from spreading through the heating system.

When the filling is prepared, it is necessary to independently make connection points for a home-made whirlpool boiler to the heating main. To do this, adapters are fixed on both sides of the pipe by welding or threaded connection.

Next, you need to make the heating element of the device yourself - an induction coil. All that is needed is to wind about 90-100 turns of copper wire over the pipe. Be sure to observe the pitch between the turns so that the homemade induction boiler works evenly. After complete winding, the ends of the copper wire are connected to the inverter and, finally, the boiler body can be assembled and insulated with a suitable thermal and electrically conductive material.

Starting a home-made heater must be done only after connecting to the coolant - water. If you turn on the inverter without water in the case, the pipe will instantly melt and all your efforts will be in vain.

That's the whole instruction that allows you to make an induction boiler from improvised means at home. Such a homemade product can be installed on any part of the heating system, but because of the not very attractive appearance We recommend keeping it out of sight.

You can clearly see the principle of operation of the device in this photo:

As you can see, the core inside is red-hot, which is due to the influence of an electromagnetic field. We advise you to view the tests of the assembled device on a video example:

The action of the electromagnetic field

Idea #2 - More powerful machine

To make a powerful induction boiler with your own hands, you just need to be able to use welding. In fact, the assembly technology is not too complicated and any self-taught electrician can handle it, as you will see after reading.

So, from the materials you will need:

  • two pieces metal pipe different diameter;
  • copper enameled wire;
  • two adapters for heating pipes (for supply and return);
  • heat-insulating casing;
  • three-phase inverter.

A drawing of a homemade heater is as follows:

As you can see, one pipe must be welded inside the other to make a hollow tank in the form of a cylinder. Also, using a welding machine, you need to “embed” two pipes into a container for supplying cold water and outputting hot water to the heating system.

Next, as shown in the diagram above, it is necessary to wind the copper wire around the body of the induction boiler. The winding, as you understand, will serve as a heating element and, in contact with the coolant, will heat it up. On top of the created structure, it is necessary to pull a heat-insulating cover, then open the water supply and test the system.

In the conditions of modern market relations, the price of products and goods is growing quite quickly and regularly. Everything is getting more expensive, including energy resources. Owners of residential buildings and premises are forced to find profitable ways without losing the quality of the coolant. One of these methods is a do-it-yourself induction boiler. The principle of operation of such equipment is based on the simplest and most understandable principle of electromagnetic induction. In order to understand how this works, you can imagine a thick wire through which current passes. An electromagnetic field develops around this wire. If you direct the converted energy to a metal plate, you can get a heat-releasing surface.

The main advantage of an induction boiler is that it can be easily made with your own hands, even without the appropriate physical and technical education. It is enough to understand the principle of its work and collect all necessary materials. Which - in our article.

Device

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

Given that in this design it is the coil that acts as a 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 are called perhaps the most efficient and economical way of heating large and small rooms. Whether this is so, a video report will help to understand, where the most famous theses about induction boilers are discussed.

Before proceeding with your own assembly, 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 largely identical to the operation of a tubular electric heater (TENA), which also converts into thermal energy electricity.

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

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

The primary winding (circuit) is necessary for the formation of an eddy current from the incoming electricity. The magnetic field from the vortex flow is transmitted to the secondary winding, which already 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 body, and it is by its shape that you can determine a home-made boiler in front of you or an industrial one. The latter is always made according to the principle of cylindrical winding, which is rational in the conditions of the conveyor. Homemade winding is traditionally made in the form of a torus (torroidal) - w-shaped turns mounted on a core. This method is more rational, as it allows to reduce the weight and dimensions. finished construction, but at the same time increase the efficiency.

The IC body includes the following mandatory elements:

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

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

The advantages of such boilers

  1. The maximum simplicity of the design ensures its long-term operation - the minimum period is 15 years.
  2. There is no mechanical wear of both the entire boiler and its constituent elements. There are no dynamic parts here, so wear is basically impossible.
  3. A 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 detail is the core, which gradually breaks down over time, but this process continues for several decades.
  5. In industrial types of boilers, the warranty period applies only to transistors that provide electricity. The stated period 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 they win in comparison with heating elements.

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

  • 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 halved;
  • minimum inertial level;
  • there is no scale on the walls due to a closed whirlpool;
  • there is no need for regular maintenance and service.

How to DIY

Necessary materials:

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

In addition, you will need tools (pliers, 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.

The adapter on the receiving pipe is welded by inverter welding, the adapter on the supply pipe, through which the coolant exits, is put on the threaded connection.

To make an induction coil with your own hands, you will need copper wire. Wind it on 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 a high frequency inverter. The manufactured structure can be installed at any point of the pipeline, and for this there is no need to mount a separate system or make additional branching of pipes

After you have assembled the entire structure, it is necessary to isolate the open sections of the coil so that its operation is absolutely safe for others.

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

The advantages of induction boilers are undeniable - silent operation, the highest possible efficiency of 97%, low energy consumption, long service life, calculated in tens of years, and much more. The average price of a domestic industrial boiler is 20-25 thousand rubles, which pays off in 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 considering whether to make or buy, initially contact the specialists who will tell you if it is possible to install such a boiler in your system.

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