Do-it-yourself inductive heating boilers. Should I buy an induction electric boiler for home heating? Why choose an induction boiler for home heating

Induction water heaters they are good because they consume the least 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. It is connected with high price 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 plastic pipe net and fall asleep inside the chopped wire. The amount of material should be such that the volume of the homemade product is completely “clogged” with wire. Then the other end closes metal mesh, which will prevent the spread of wire 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.

launch homemade heater it is necessary to make only after connection to the heat carrier - 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 exposure to 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 of metal pipe of different diameters;
  • 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 nozzles into the supply container cold water and output hot to the heating system.

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

Simple and at the same time powerful electric boiler

How to make homemade tiles

So we provided 2 design options for a home-made induction boiler that heats water due to the influence of an electromagnetic field. We hope that you now know how to make a heater from improvised means at home, because. both technologies were "chewed" from A to Z!

Today, almost everything is only becoming more expensive, and traditional energy carriers are no exception. House owners, apartment residents, business owners - everyone has to look for a more profitable way to heat their premises. And in order to more rationally distribute costs and achieve the maximum value of the coefficient useful action, many put an induction heating boiler with their own hands.

One of the main advantages of such a boiler is that this system can be built by yourself. To do this, you only need minimal knowledge and skills. It is only necessary to study in detail what such a boiler consists of and how it works.

Before you assemble an induction heating boiler with your own hands, you should understand what principles are laid down in its functioning, what it consists of and how it works.

Note that such devices are quite similar to heating elements responsible for converting electrical energy into thermal energy.

Installing an induction boiler does not require the owners of the house to completely rebuild the heating system.

Most simple models boilers operate on the principle of an electric inductor, which consists of two windings:

  • primary;
  • Secondary.

The primary circuit is mainly used to convert electrical energy into eddy current. The magnetic field that they create is directed to the secondary winding.

The secondary winding is the heating component, as well as the boiler body, it generates heat, which is transferred to the liquid heat carrier circulating in the heating system.

The body contains the following components:

  • Core;
  • Outer contour;
  • Electrical insulation.
  • Thermal insulation;

Note that it is precisely such a nuance as the boiler body that is the most important element, which distinguishes home-made and industrial induction boilers heating. Industrial boilers have a cylindrical winding, while home-made boilers have a toroidal one. It is made of copper wire, surrounds the body of ferrimagnetic steel, the wall thickness is more than 1 cm. This design allows you to significantly reduce the weight of the device and its linear dimensions, but at the same time increase the efficiency.

The heat carrier receives approximately 97% of the heat energy, and this affects the economy of the system and performance.

If we compare a homemade induction heating boiler and a traditional boiler that runs on gas or liquid fuel, there are a few things to note:

  • Double heating of the heat carrier;
  • Reducing the heating time by half;
  • Low inertia;
  • The magnetic induction that appears prevents scale from forming on the walls;
  • No specialized cleaning or maintenance required.

Let's start working!

So, to make homemade induction heating boilers, you must first collect everything you need:

  • Tools;
  • Wire rod or steel wire up to 7 mm in diameter;
  • copper wire;
  • Plastic thick-walled pipe;
  • metal mesh;
  • Welding inverter machine.

To make a body for our boiler, you need to either buy or find at home a thick-walled plastic pipe with an inner diameter of 5 cm. Such a pipe will not only serve as a base induction coil, but also be a section of the heat pipeline.

The heating scheme, which is better to put in front of your eyes, will also help you a lot. Based on such a diagram, you can determine the additional characteristics of the device.

In the electromagnetic field, pieces of steel wire cut into lengths of about 5-7 cm will be heated. Their diameter should not be more than 7 millimeters.

You will also need special adapters, they will connect your boiler to the pipe system. On the one hand, the heat carrier will go in in a cold state, and on the other hand, it will come out warm with the help of induction.

When you make induction heating boilers with your own hands, the first adapter must be welded, and the second one can simply be threaded.

Completely filled with cut pieces of wire inner space in the pipe. After that, the device must be securely closed from both sides.

To make an induction coil that will serve as the main heating element, enameled copper wire should be prepared. We wind about 90-100 turns on the plastic case, but the same distance must be observed between the sections. When we have assembled such a homemade inductor, we need to connect it to the system. Such a boiler is installed anywhere in the pipeline.

The coil is connected to a high-frequency inverter. Remember that in no case should you turn on such a device if it does not have enough heat carrier inside! After all, the plastic case can simply melt due to high temperature.

So, a self-made induction boiler is almost ready. It is only necessary to secure its operation. For this we must all open areas copper wire is insulated with special materials that have good thermal and electrical conductivity.

Or is it still better to buy?

On the modern market heating equipment you can find many models of induction boilers. If you do not want to bother with its creation yourself, just purchase an induction boiler to heat your home or industrial premises.

Despite the fact that this species boilers are not yet included in the list of traditional boilers - there are many types on the market that differ in price. Household models can cost from 25,000 rubles, industrial ones - from 100,000 rubles.

If this cost scares you, then just make an induction boiler yourself. After all, most of the components and materials necessary for this are always available from the owner and home master.

If you explore the domestic market of induction boilers, then they are represented by such manufacturers as SAV, VIN. As for power, single-phase boilers have a range from 2.5 kW to 7 kW, and more powerful three-phase ones - up to 60 kW.

It should be remembered that when you select the necessary parameters of the induction boiler, the power of the device will not decrease throughout the entire period of operation. The standard ratio is 60 W per 1 sq.m of heated area. But in order to more accurately calculate the power, it is necessary to take into account the parameters of the room, that is, the place where this boiler is located. If the thermal insulation leaves much to be desired, the insulation also, then the calculated ratio should be greater. That is why it is best to entrust such a calculation to specialists.

Induction boilers can maintain a stable temperature regime in buildings that are not constantly used.

So, you don't need too much powerful model, you will need to put a 6 kW boiler for a room of 100 sq.m and for a temperature of about 15 degrees. The maximum allowable pressure in the system will be a pressure of no more than 0.3 MPa.

It is worth noting that the block of the electronic programmer of operating modes can also be additionally supplied to the basic configuration. Such a device programs the operation of an induction boiler for a period of a week, or is used to remotely control the entire heating system.

When choosing a boiler, you also need to pay attention to such a thing as the parameters of the thickness of the steel core. How more thickness walls, the longer it will not corrode.

Results

So, the efficiency of induction boilers is approximately 99%, they work silently, on any liquid heat carrier, they do not need service maintenance and also it is safe and practical. Although such a boiler is quite expensive, such costs are paid off. And if you create it yourself - it will be even more profitable.

Of course, the choice is yours, but it’s better to contact specialists who will tell you if such heating is right for you. But, in general, induction boilers are great alternative traditional systems 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 used in the production of generators and electric motors, transformers.

But only after some time did human thought reach the point that this principle can be applied to. Only in the nineties of the XX century began to produce the first induction electric boilers for home heating.

Boiler design

Boilers of this variety have very complex structure. The design is a multilayer mechanism.

  1. Its first layer 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 consists of ferrimagnetic steel pipes (two pieces) with a wall thickness of 10 mm. These pipes have different diameter and insert into each other. The inner tube is surrounded by a winding, this tube has the function of a core, and the outer tube is a heating element.

Principle of operation

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

Why choose an induction boiler for home heating

  1. The coolant undergoes double heating;
  2. Scale does not form on the walls of pipes, because magnetic induction creates vibration at high frequencies. The boiler will last a very long time;
  3. Minimum heating time even in comparison with heating elements. This is due to a lower degree of inertia;

How to choose an induction boiler

There are two types of induction boilers:

  • single-phase,
  • three-phase.

Many devices have special remote control management. It allows you to set the temperature parameters of the room.

When 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 figure can be reduced.

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

Advantages of induction heating boilers

Boilers do not require a special room for the installation and installation of the chimney
  • Operates on both AC and DC. Low voltage ratings are allowed;
  • Heating elements, which often fail and require replacement, are absent in this type of boiler;
  • The chance of leaks is minimized by general design boiler. It is welded hermetically and reliably;
  • In boilers of this type, scale is completely absent;
  • High category fire safety, as well as electrical safety. No need to install the boiler in a special room, does not require the installation of a chimney;
  • Efficiency is 100% and this indicator does not decrease over the years;
  • The manufacturer's warranty on the core is a quarter of a century;
  • The coolant can be not only water, but also oils, antifreeze. The requirements for the quality of the coolant are rather 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 species boilers for heating houses;
  • Suitable only for closed heating systems;
  • At a distance of several meters, this boiler can create wave interference. It is not recommended to place near household appliances;

Economy of use

Compared to heating elements, induction boilers are much more expensive. But, you need to understand that the colder it is outside, the faster the new induction heater pay off. Heating element 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 of half a millimeter reduces heat transfer by 10%. The larger the layer of scale, the worse the heat transfer of the boiler will be.

Induction boilers can save up to 30% of energy

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

Induction boilers - perfect solution for heating houses. Despite the initial high cost, these devices practically cannot fail. Because they do not have a heating element. And the absence detachable connections completely eliminate the leakage of the system.

The principle of operation of an induction heating heating boiler is based on the use of eddy currents, discovered and studied by the French physicist Foucault. A modern electric induction boiler used for heating water in heating circuits can be represented as a transformer consisting of an induction coil, a core, a primary and secondary winding, which is inner tube through which the heated fluid passes.

Two types of boilers are known that use eddy currents to heat the coolant. If for the first type, a mains voltage of 220 to 50 hertz is applied to the primary winding, then for another type, the voltage is supplied through an inverter that converts the mains voltage into high-frequency currents, of the order of tens of kilohertz. There is a difference in the material used. For example, if the SAV induction boiler has a heat exchanger from a closed system steel pipes, then a heat exchanger made of ferromagnetic material is used for vortex induction boilers.

Why you need an inverter

Many people still remember color tube TVs, the weight of which reached 60 kilograms. It was possible to reduce their dimensions and weight thanks to the use of inverters in power supplies. The inverter converted the mains voltage with a frequency of 50 hertz into a high frequency voltage of several tens of kilohertz. This voltage was supplied to the transformer, distinctive feature which was a core of a special ferromagnetic alloy. Physical properties the applied ferromagnetic material made it possible to significantly reduce the dimensions and weight power transformer. The conversion of mains voltage of 50 hertz to high frequency is used in vortex induction boilers - these are new generation induction boilers for home heating.

Voltage is supplied to them from the inverter, the transformer coil is a winding on the central pipe made of a ferromagnetic alloy, and the secondary short-circuited winding is a pipe and an induction boiler body. This technical solution made it possible to make the boiler compact, reliable and economical. But on the other hand, the use of expensive copper for winding and special alloys for heat exchangers, an automation unit and an inverter made the cost of the product high. Therefore, for any induction boiler, the price will be much higher than for an electric heating element boiler.

Features of the installation of induction boilers

Modern induction electric boilers for home heating are designed for installation only in closed circuits, with a circulation pump. Forced circulation is necessary, first of all, because the small volume of the heat exchanger and intense heating prevent the creation natural circulation. The water will boil before the conditions for gravitational circulation are created.

If an induction electric boiler for heating is used as a heat generator, it is recommended to use plastic pipelines in the circuit or isolate it from the boiler by installing plastic fittings. The boiler requires mandatory and high-quality grounding. Installation requirements are common for electric boilers: from the floor or ceiling - 0.8 m, from the wall - 0.3 m. Installation of a safety block, which consists of a pressure gauge, air and safety valves, is required as for any closed heating system.

Advantages of electric induction boilers for heating

The efficiency of the induction boiler is very high and close to 98%, as with heating elements or electrode boilers. It is no secret that the price of induction electric boilers for heating a private house is higher than for conventional heating elements boilers. The cost of materials, the automation unit and the inverter increase the cost of the unit. Like any technical devices Induction heating boilers have advantages and disadvantages.

Advantages of induction boilers:

The disadvantage is considered to be a lot of weight - from 30 to 40 kilograms and the fact that induction prices for electric boilers are much higher than for heating elements boilers.

The main types of induction boilers

Before you buy an induction electric heating boiler for your home, you need to choose which type is the most suitable.

There are two varieties on sale - SAV induction boilers and vortex boilers (VIN), which have characteristic differences.

Induction heating boilers SAV

Boilers of this type do not require the use of an inverter. Mains voltage of 50 hertz is applied to the winding (inductor). Secondary winding as a system metal pipes heat exchanger is very quickly heated by Foucault currents. The heated coolant moves in the circuit forcibly with the help of. Boilers are produced for voltages of 220V and 380V. A 2.5 kW boiler heats a room up to 30 m2, and you can buy an induction electric heating boiler complete with a control and automation unit for a price of about 30 thousand rubles.

Induction boilers VIN (vortex)

These are induction boilers of a new generation; an inverter is required for their operation - a frequency converter electrical network. This technical solution made it possible to make the device compact and lighter than SAV type boilers. The heat exchanger is made of ferromagnetic material, and the magnetic circuit and the secondary winding are not only the heat exchanger, but also the boiler body.

A VIN-type boiler with a power of 3 kW can provide heat for 40 m2.

The kit includes an automation unit, a pump and circulation pump, therefore, the highest price for an electric induction heating boiler is about 38 thousand rubles.

Induction boiler - the best source of heat

From any point of view, there is nothing simpler, more reliable and better for heating than an electric boiler. The reviews found on the network for induction boilers for heating a private house emphasize only one drawback - the price of electricity, if it were comparable to the price of gas, 99% of the population would forever abandon the use of gas boilers. In addition, many are afraid of the possibility of a sudden power outage. But a modern induction electric heating boiler finds its buyer. Electric boilers are installed as a reserve in private houses and for heating in offices and trade pavilions.

During device planning heating system at the cottage or country house many are trying to solve the problem of excessive energy costs by installing an induction heating boiler. In addition to saving electricity, its design is such that it allows you to do without harmful emissions in 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 consider what an induction heating boiler is: everything about the principle of operation + 2 do-it-yourself device options. In addition, its advantages over conventional electric boilers and gas units.

The device of induction boilers

The basis internal device such a boiler includes an inductor (transformer). Ordinary household induction boilers are slightly different from similar industrial boilers with a cylindrical winding system. AT compact boilers household purpose applied copper winding toroidal type.

The outer casing of the unit is made of painted metal, then goes thick layer thermal and electrical insulation, inside which there is a core with a double wall. 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 conversion takes place. electric field into a magnetic one, which creates eddy currents. Already their energy is transferred to the secondary winding. The body of the circuit acts as a secondary winding, which, under the influence of this energy, releases a large number of heat transferred to the coolant. Toroidal winding allows you to create units with low weight and dimensions.

The principle of operation of induction boilers

AT standard equipment usually the boiler itself is included, an absolutely necessary semiconductor converter called an inverter, circuit breakers, electronic thermostat. The temperature sensor itself is located inside the boiler body.

The operation of induction boilers is based on the principle of electromagnetic induction. Its essence is that the electricity consumed from the network creates an electromagnetic field. The heat carrier is fed into 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. At the same time, the steel core heats up to a temperature of 750 degrees in just 7 minutes.

The generated heat 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 the full-fledged operation of a domestic boiler with an average length of the heating circuit to take place. This method allows you to quickly heat the entire system, but for better circulation, you must additionally install a conventional circulation pump.

Due to the application of the principle of magnetic induction, the heating of the coolant in such boilers is 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 is because the eddy currents force the core to vibrate, preventing scale from forming. At the same time, bubbles boiling near his body clean the surface of the core. Due to the tightness of the entire system, the coolant takes 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 unconditional advantages over conventional boilers on heating elements:

  • Stable efficiency up to 99% for almost the entire period of operation.
  • The absence of heating elements, which significantly extends the life of the device.
  • The absence of moving elements, which completely eliminates mechanical wear and the need to replace components.
  • No detachable internal connections does not allow leakage.
  • Full availability of work even with DC or low voltage in the network.
  • Very fast heating up to the necessary temperature of the heat carrier (5 - 7 min.).
  • Enough high degree electrical and fire safety, corresponding to class II due to the use of a core that is not directly connected to the inductor.
  • No need to install a chimney and 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 outer seam and on thick metal pipes for the core. He does not need any preventive work during the entire period of operation.
  • The boiler can use all available liquid heat carriers: oil, water, antifreeze, ethylene glycol without any preliminary preparation.
  • You can change the coolant outlet only once every 10 years.
  • Good protection against overheating and various accidents, noiselessness during operation.
  • The boilers are equipped with electronic automated control systems.
  • There is no scale inside the circuit.
  • The ability to connect the boiler to any heating systems closed type.
  • The minimum possible heating of the coolant is 35°C.

But induction boilers have disadvantages, as before others. heating appliances, as well as individual specific parameters.

  • Such boilers can only be connected to a closed heating circuit, very often with forced circulation of the coolant.
  • Sufficiently large weight of the boiler with quite small sizes. The weight of a boiler with a power of 2.5 kW is at least 23 kg with full height 45 cm and 12 cm in diameter.
  • The price is higher than that of 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 bands. They do not affect the human body, but they are well felt by pets and electronic equipment.

Installation of an induction boiler and a control system for it

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

According to the instructions, the induction boiler is set strictly vertically. After that, 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 most special attention should be paid to the fasteners. They must be very reliable, taking into account the fact that during the operation of the boiler, 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 or less. An important and obligatory condition for the installation of such boilers is their grounding. With it, it is possible to use both metal and metal-plastic pipes.

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

The installation of the entire control system, as well as the boiler itself, must be carried out in accordance with existing rules and PUE norms, schemes and conditions contained in the supplied technical data sheet.

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 summer house or garage with it, then you can try to design it yourself. There are two options for how to do this.

First option

For its implementation, you will need pieces of plastic pipes and welding inverter. Having elementary knowledge in the field of physics and knowing how to use wire cutters, you can independently make an elementary 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. For heating large area it is better to choose a much more powerful device. You will also need a wire rod from of stainless steel or ordinary pieces of steel wire. This is necessary to play the role of 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 thematic store. Do not use winding from old coils. The case, which is the basis of the induction coil, is also part of the pipeline, so it can be made from a plastic pipe with thick walls. Its inner diameter should be 50 mm. Two outlet pipes are attached to this body for the inflow of cold and the return 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 enameled copper wire is gradually wound around a previously prepared plastic pipe. It will take about 90 turns. The resulting homemade device required to be connected to the pipeline network. Cut out of the pipeline small plot pipes, and instead they install a home-made induction boiler. It is connected through an inverter and just run the water.

Second option

This option involves the use three-phase transformer with possibility and 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 a section. This design performs both conductive and heating functions. Then they wind the winding directly on the boiler body in order to make it more effective work despite its small weight and size. Used here standard scheme heating the coolant: it receives a large amount of thermal energy in contact with the winding.

The manufacturing scheme of such a design is somewhat more complicated than in the first version. The boiler is equipped with two branch pipes, both for the inlet of the cold coolant and for the outlet of the heated one. If you invent and build yourself protective cover, the heat loss can be minimized.

Features of self-installation and operation of home-made boilers

As in the case of factory-made boilers, only a closed-type heating system can be suitable for installing a home-made induction installation. It must include centrifugal pump, which creates a constant circulation of the coolant inside the heating system. The plastic pipelines common today are the best suited for installing a homemade induction boiler. All regulations relating to the installation of store boilers must be fully observed in this case as well. If you install controls and safety devices on the system, then your homemade installation will not be much inferior to their factory counterparts.

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