DIY electrode boiler. Electrode boiler - what is it and how to install it yourself Electrode heating electric boilers

This is what an electrode electric boiler looks like.

Such a boiler is also called an ion boiler. This is due to the principle of converting electrical energy into thermal energy. The electrode boiler itself is quite small. An electrode electric boiler for heating is installed on a pipe and does not even need to be additionally attached to the walls. He is supported by the American women with whom he is assigned, this is quite enough.

The body of an electrode electric boiler for heating is similar to a piece of pipe, about 40 cm long. A metal rod is screwed into one of the ends. The second end is either sealed, or a pipe for coolant circulation is welded into it. In total, the heater body has two pipes for supply and return. They can be located:

one at the end, the second perpendicular to the side;
both in the side part are perpendicular to the body and parallel to each other.

The operating principle of an electric heating boiler is that ions move between the cathode (positively charged electrode) and the anode (negatively charged electrode). They, in turn, can also be either positively or negatively charged. In this case, their polarity constantly changes; the same ion changes plus to minus 50 times per second. Because of this, the movement of ions is chaotic, because plus attracts minus, and when a constant change in polarity occurs, the particles, accordingly, change the vector of movement.

As a result of fast, chaotic movements of ions, friction occurs, due to which the coolant for electric heating boilers quickly heats up. The reaction speed is so high that a segment of 40 cm is enough to heat the liquid circulating in the boiler. The cathode is a metal rod to which the phase, that is, plus, is supplied. Zero, also known as minus, is connected to the body, while the rod has no contact with the body except through the coolant. They are isolated from each other. If there is no coolant in the electrode electric heating boiler, the reaction stops.

Disadvantages of this heating method:

the coolant is under voltage;
salt preparation of the liquid is required;
can not use .

Heating of the coolant occurs due to contact of the liquid with electrical charges. Water is the best conductor and, due to its resistance, boils quickly. Therefore, it is necessary to change the composition of the coolant in such a way as to reduce it resistivity. In this case, the operating current level in amperes must be observed. For each heater, the starting and maximum current values are indicated in technical documentation. To achieve the required current strength, add table salt to the liquid, the same one used in everyday life.

An electrode electric heating boiler works only with specially prepared coolant.

The amount of salt in the water should be appropriate state standard No. 2874–72. In practice, everything happens by measuring current strength. If its value is insufficient, more is added to the liquid. salt, if the value exceeds the permissible standards, then distilled water is added to the coolant. There are practically no metal and salt impurities in distilled water, while tap water contains a lot of such impurities, especially in water from a well or borehole. The coolant temperature is controlled by special sensors. When the set temperature is reached, they turn off the boiler and turn it on when the water cools down.

Operating principle of an induction electric boiler

Induction heating electric wall-mounted boilers heat the coolant magnetic field, which is created by electric current. Electric heating boiler design:

sleeve (body);
insulation;
coil;
the core through which the coolant circulates.

The coil in induction electric boilers for home heating is isolated from the liquid, that is, the current does not penetrate the coolant.

The copper winding is connected to the network through the control unit. Due to this, a magnetic field is created inside the coil. It contains the core (roughly speaking, the pipe through which the liquid flows). The magnetic field heats the pipe, which, in turn, gives off heat to the water. The heater body remains cool, as it is protected by a layer of insulation. This method is good because the coolant is not energized, so it will not shock you.

To increase the residence time of the coolant inside the boiler, the core (pipe) is not made straight, but has a labyrinth design, as shown in the figure:

A visual diagram of the design and principle of circulation in an induction boiler.

As you can see, first the liquid enters the induction electric boilers to heat the house through the return pipe, it makes several 180-degree turns and tends to the exit. In this case, heating begins from the first second of coolant entering the unit. The design of an electric heating boiler does not have any movable elements, scale does not accumulate on the windings, and, in fact, there is nothing to break. Unless the inner walls of the heat exchanger in which the coolant is heated may rust over time. But due to the fact that fairly thick metal is used for production, this process stretches for more than a quarter of a century.

The operating principle of a heating element electric boiler for heating

Tens come in different shapes and sizes, but the principle of operation remains the same.

A wall-mounted electric boiler for heating a private home is cheaper than all its counterparts operating from the network, and replacing the heating element costs mere pennies. Heating water with heating elements is practiced not only in boilers. This method is widely used:

in boilers;
in baseboard water heating.

In modern electric heating boilers, the coolant is heated using heating elements. They are completely immersed in liquid and this is prerequisite for their work. The fact is that if the heating element does not come into contact with the liquid, it will burn out. Water cools it, taking away heat. If the heating reaches a critical level, the material cannot withstand it and burns out.

The heating element consists of a metal tube bent in any shape. These can be round or oblong spirals with different quantities turns. Inside the tube is quartz sand. It is an intermediary between the heating element body and its heating element. All the heating work is done by a thin tungsten filament twisted into a spiral. In essence, there is nothing complicated. Let's summarize how an electric heating boiler with heating elements works:

current is supplied to the tungsten filament;
the thread heats up itself and transfers heat to the quartz sand;
sand conducts heat to the heating element body (metal tube);
the tube comes into contact with the coolant and heats it.

In this case, voltage should not enter the coolant. If the liquid produces an electric current, this may be the result of a heating element failure, or problems with grounding. Because of heating elements constantly in contact with liquid, and hot liquid at that, scale appears on them. This is where particles of metal, salts and minerals settle, which are found in any water, except distilled water, of course. Therefore, in order for heating element electric boilers to serve longer, it is better to pour distilled water into the circuit. You can buy it or get it yourself.

There are several ways. Can be assembled rainwater or cut the ice on the river with a chainsaw and melt it. As a last resort, you can stand with ordinary water so that everything unnecessary settles, and then use a hose to drain a third of the liquid from the bottom. But even if you don’t use distilled water, you shouldn’t worry too much about replacing heating elements. They are inexpensive and you can find them in many places, there are no problems with these.

Another advantage of heating element electric boilers is a wide range of models. There are floor-mounted electric heating boilers and wall models, which can be connected to a 220 and 380 volt network. Some copies are equipped with a switch and are universal. And there is no difference in the design of the 220 and 380 volt heater, it’s all about the sequence of connecting the heating elements. Two independent connection schemes are made in the control unit, and the user selects the one he needs.

The operating principle of all types of electric boilers

Simple control unit with display for an electric boiler.

It is clear that manually controlling the operation of the heater is nonsense, after all, during high technology we live. Therefore, almost all types of electric heating boilers are equipped with electronic controls with a different number of options. The “brains” of the device may not be provided by the manufacturer. Some models have the simplest and necessary sensors, in expensive devices the number of functions is much wider. What should be in the control unit of all types of electric heating boilers:

temperature sensor;
separate fuses;
time relay;
load relay;
two-tariff meter.

It is better to install a temperature sensor to control the air in the room than to control the coolant.

Depending on the temperature outside the window, with the same heating of the coolant, the house will be either warmer or colder. It is more convenient when the room temperature is kept at the same level by increasing or decreasing the heating of the liquid in the circuit.

The load relay will prevent the heater from turning on when the home network is overloaded. For example, when the washing machine is running. Thus, the wiring will not be overloaded and will not burn out. To save on electricity bills in houses that are heated by electrical appliances, you need to install double tariff meters.

They calculate how much energy is spent during the day and night, and divide the cost per kilowatt used. Electricity is cheaper at night. The installed time relay will turn on the heater when it is more profitable, that is, at night. While during the day the boiler will work as little as possible.

If serial models of heaters do not suit you in terms of their functions or are too expensive, then you can buy the simplest boiler and assemble the control unit yourself. This is convenient because you can determine for yourself which features you need and which you don’t. In addition, everything can be done in stages, so you don’t need to shell out a decent amount right away.

When considering various heating options for a private home greatest number owners give preference gas boilers as the most economical systems. But what should those owners do if their houses are located in secluded places, for example, deep in the forest, where there is no central gas pipeline? This issue can be resolved by purchasing an electrode boiler for heating a private house.

Boiler characteristics

Energy saving electrode heating boiler

Electrode boilers belong to direct heating heating devices, where heat is sent directly to the energy carrier. This allows you to immediately increase the power of the unit, since there is no barrier during the heat transfer process.

Heating occurs due to electrodes immersed in a container with coolant. The current is conducted through water with a frequency of 50 Hertz, which eliminates the phenomenon of electrolysis, which means that the inner surface of the boiler will be free from scale formation. The process of heating the coolant is carried out due to the resistance that arises, and this happens instantly. As a result, the tank can be small in size since there is no need to wait for the element to heat the water.

Such design features electrode boiler significantly reduce energy costs in the heating system.

Note! On average, similar equipment for heating the same area of the house will consume 40% less electricity than others electrical devices. According to consumers, this is the most important advantage of the equipment.

The device is quite sensitive to the composition of water, so the usual tap water cannot be used to operate an electrode boiler. It is necessary to carry out special water treatment first. It is ideal when antifreeze recommended by the manufacturers is used.

It is worth noting another feature of electrode boilers - after some time the electrodes dissolve. This process is natural, and its acceleration or deceleration depends solely on the intensity of use of the heating system.

About the benefits

Before talking about the advantages of an electrode boiler as a heating system at home, it should be noted that this option is only possible if there is reliable electrical wiring and a stable network condition. When frequent power outages and sudden voltage drops occur, it makes no sense to install such equipment, since the unit will not be able to function normally.

But even here you can find a way out if you promptly purchase a diesel generator or a UPS - an uninterruptible power supply. It accumulates a certain amount of electricity, and it can be enough for several hours of operation of the electrode boiler in the event of an accident. Some UPS models can regulate voltage using a built-in stabilizer.

In addition, in small suburban villages there is a certain quota for electricity consumption by a private home. Otherwise, special permission will be required, provided that this issue is resolved from the technical side.

If the described problems do not concern the owner, he will be able to appreciate all the advantages of an electrode boiler:

High level of security. The equipment is designed in such a way that there is no possibility of leakage electric current, which means sparking and other similar phenomena. During operation, the occurrence of a dangerous fire situation is almost impossible, which allows the unit to be used to support minimum temperature without outside supervision.
Compact dimensions and the ability to be integrated into a heating network running on gas. As a result, the electrode boiler comes into operation when the gas supply stops.
Fast heating of the heating system, silent operation of the unit and the ability to replace heating elements without changing the entire device.
Installation in residential premises is possible without installing a boiler room or chimney. In addition, installation of the unit is very simple and can be done by hand.
High efficiency - up to 96% during operation, and when heating, about 40% of electricity is saved. There is absolutely no contamination - soot, fumes, ash or smoke.

Disadvantages of electrode boilers

Electric heating of a private house

The disadvantages of such a device include the too high cost of electricity. But if the house is used from time to time and is located far from the populated center, then an electrode boiler will be a good solution for heating the house.

In addition, electrode devices do not fit well with some types of pipes and batteries. For example, when using cast iron radiators in a heating system, problems arise due to their uneven internal surface and large volume of coolant. Typically one section cast iron battery holds up to 2.5 liters of water.

Problems can also arise due to the use of metal-plastic pipes. In this case, when choosing an electrode boiler, it is better to use polypropylene products.

Another nuance that can be attributed to a disadvantage is the need to maintain a constant coolant resistance. It can be adjusted by adding special additives that prevent scale formation. In this case, soda, as some craftsmen advise, will, on the contrary, contribute to this process.

Installation and operation

When installing an electrode boiler, a prerequisite is the presence of air vents that operate automatically, as well as a safety valve and a pressure gauge. In addition, shut-off valves should be located near expansion tank.

A prerequisite for installing the boiler is its vertical position. This is very convenient to do thanks to the special surface mounting included in the kit.

It is also very important that the first 1200 mm of the heating system pipes must be metal, and the rest may contain pipes made of other materials.

Electrical double-circuit boilers heating - installation

It is better to entrust the installation and installation of elements such as a climate control sensor or thermostat systems to specialists from the service center.

Before installing an electrode boiler, the heating system must be washed with water with the addition of special means described in the device passport. If the system is poorly cleaned and the coolant is of poor quality, the efficiency of the boiler will be significantly reduced. According to the manufacturers' recommendations, the best option The coolant is distilled water.

The choice of radiator for such a heating system largely depends on the total volume - that is, the displacement of all pipes and radiators. The optimal displacement should be about 8 liters per 1 kW of unit power. If this figure is exceeded, the boiler will operate longer, which means energy consumption will increase.

Radiators must be aluminum or bimetallic. The use of cast iron products in this case is unacceptable, since they are characterized by a large amount of impurities in the coolant and reduce the operation of the boiler. Besides, cast iron radiators have a significant volume, which increases energy consumption.

Conclusion

Electrode heating equipment is a reliable, energy-saving and comfort-creating device that has a number of advantages and benefits. They will undoubtedly be appreciated by all users and their households. After all, the most important thing is warmth hearth and home, and thanks to modern equipment, providing it has become much easier.

Boilers that are gaining popularity electrode type is a conversion product. In the navy they were installed (and are still installed) on ships and submarines. Back in the days Soviet Union there were two factories that produced these.

One plant in Ukraine, one in Russia. Both countries now issue them to the public. The Russian electrode boiler is called “Galan”, the Ukrainian one is “Obriy”. Today, other companies producing boilers have appeared on the market. of this type. For example, the “Ion” and “Luch” models.

Principle of operation

The operation of an electrode boiler is based on purely physical laws. The coolant in it is heated not due to some heating element, but due to the breakdown of water molecules into differently charged ions.

Two electrodes are installed in the container where the coolant is located, and the electric current supply is turned on. Water molecules under the influence of a current with a frequency of 50 Hz (this is the number of vibrations per second) are divided into positive and negative ions. It is during the separation process that it turns out thermal energy. Each ion with its own charge moves towards a specific electrode.

The surprising thing is that heating is instantaneous due to the high resistance of the water. Plus, in such a system there is no electrolysis process, which contributes to the formation of scale on the metal walls of the heating boiler. This means that an electrode boiler is an almost always running unit.

The design of the device is quite simple. Firstly, this is a device of small overall dimensions.

Secondly, the boiler is a pipe that simply cuts into the pipe junction system by threaded connection with the help of Americans. Thirdly, electrodes are inserted from one of the ends of the device. The coolant enters through the side pipe, and exits through the free end.

The dimensions of the unit depend on its power. For example, “single-phase has a length of 30 cm (diameter 6 cm), three-phase - 40 cm. For a small private suitable for home first option. If the house is large enough, multi-story, then it is better to install a three-phase device.

Coolant requirements

Unfortunately, simple tap water cannot be used as a coolant in a system where an electrode boiler is installed. In order for ionization of the coolant to occur, a certain salt content in it is necessary.

Therefore, manufacturers recommend heating system in a private home, fill in antifreeze or add special inhibitors to the water. The Galan company produces special solutions called “Potok”, which can be added to water or used as a coolant.

Advantages and disadvantages

Like any electric unit for heating a private home, an electrode device has its own positive sides, and negative.

pros

The positive ones include high coefficient useful action– 98% with small dimensions. At the same time, due to the ionization of the coolant, energy consumption is saved. If we compare, for example, with heating element heating boilers, electrode boilers consume 40% less electricity.

Voltage drops are a natural state of Russian electrical networks in countryside villages. So here it is energy saving boilers Electrode-type heating systems do not respond to these changes. In addition, there is no need to coordinate the installation and connection of the boiler with the boiler inspection.

Minuses

The negative aspects of using an electrode heater include the impossibility of using it in a heating system where steel pipes and cast iron radiators. In the first case, there is a high probability of scale formation on the walls.

In the second, there is a large volume of coolant, which the electrode boiler may not warm up. Here we add the filling of antifreeze and inhibitors, as well as the high cost of electricity.

Characteristics

To understand the characteristics of the electrode boiler, it is necessary to consider domestic models of the Galan device. The company today offers four modifications:

"Hearth";
"Standard";
"Geyser";
"Volcano".

For private houses

The “Ochag” and “Standard” models are for private homes. Their power is 2, 3, 5, 6 kW. Accordingly, with their help you can heat houses with a volume of: 80, 120, 180, 200 m³.

These devices work from the network alternating current voltage 220 volts. For connection, it is recommended to use a cable with a cross section of 4-6 mm².

For large buildings

“Geyser” and “Vulcan” can be used for heating large buildings: residential and non-residential. The power of these devices is: Geyser - 9, 15 kW, Vulcan - 25, 36, 50 kW. Both models are three-phase analogues.

Non-freezing liquids such as “Tosol” and “Arctic” are not intended for electrode boilers.

Control and management

All models are equipped with temperature sensors and adjustment devices temperature regime. The electronic control unit is installed next to the boiler, usually on the wall.

Controversial issues

There is a misconception that electrode-type heating devices are divided into cathode and anode. The thing is that the cathode and anode can only be present when exposed to direct current. Electrode boilers use alternating current.

One could call electrode heating units operating according to single-phase circuit, cathode, because two tubular rods are installed inside the boiler. One is supplied with electric current, the second is the zero phase. In this case, the movement of electric current (negatively charged particles, that is, electrodes) occurs from the first rod to the second.

But it would be more correct to call the boilers ionic. It's all about the principle of obtaining thermal energy. This has already been discussed above.

The smaller the volume of coolant in the heating system of a private house, the more efficiently the electrode-type boiler operates. Therefore, it is recommended to use bimetallic or aluminum radiators and contour wiring made of polyethylene pipes.

Please note that it is best to create your own new heating for an electrode heating unit. Embed it into the old one, where a different type was used heating device, not worth it.

Thermal insulation and connection

Experts recommend thermal insulation of all circuits. The connection is best done with a separate cable from the distribution panel with the installation of a separate machine. IN electrical diagram connection, an RCD (residual current device) cannot be installed.

The installation must be grounded, as is the case with other models of electric heating units.

Increasing heating efficiency

If for heating big house If the power of one boiler is not enough, then you can install it in unified system several devices. They can be connected to each other in parallel or in series.

And one last thing. Heating boilers this type are installed only in closed system, where it is mounted circulation pump. The latter provides additional coolant resistance, which affects the quality of heat generation.

Energy-saving technologies remain a priority in all areas. They show the greatest efficiency in the field of heating. This approach is associated with a constant rise in fuel costs. Equipment manufacturers offer various options execution heating devices. One of them is anode heating boilers.

Design features

In order to understand what we are talking about, let us recall the student and/or military background of many of those who are now reading this article. We are talking about a method of boiling water, for which some used a boiler, while others used a simple homemade design. These are two blades, fixed at a short distance from each other and connected by a 220V power cord. When this “boiler” was placed in water, heating occurred literally within 2-3 seconds and violent boiling began. This is precisely the principle on which an anode heating boiler works.

Please note that conducting experiments with heating water is dangerous to life and health. On the one hand, a short circuit may occur, on the other hand, a person runs the risk of electrical injury (electric shock).

The convenience of using such devices lies in the fact that it is possible to install electrode heating boilers in parallel into an existing heating system that works, for example, with a gas boiler. The coolant in both cases remains the same. But manufacturing companies produce not quite standard heaters, in which water is simultaneously used as both a coolant and a heating element.

The main elements of the module are:

steel tube;
inlet/outlet pipes;
terminal for connecting wiring;
heating electrodes;
high quality insulation.

Cathode heating boilers have a powerful steel body on the outside. The walls are made of sheet metal up to 4 mm thick. Several electrodes up to 20 mm are located inside the household structure. They are made of a refractory alloy that has a long service life.

Modern electrode ion boilers do not have an intermediary material between the anode and cathode. Heating from both terminals occurs directly from the coolant itself, water. Accordingly, there is practically nothing to “burn out” inside the cavity. The scale that appears on the tubes in electric electrode boilers after long-term operation is cleaned off with ordinary sandpaper.

What is the difference between electrode and heating element boilers?

The individual characteristics endowed with electrode heating boilers allow them to be distinguished from heating elements:

in heating elements, at the initial stage of start-up, the working tubes are heated, and electrode boilers, made by hand or purchased in a specialized store, begin to heat the water immediately after start, which reduces inertia;
ion heating boilers have positive reviews, as they are 20-0% more economical than devices with heating elements;
thanks to alternating current with a frequency of 50 Hz, the electrodes move between the terminals and create a chaotic movement that promotes heating; this feature reduces the starting current for the electrode heating boiler, reducing the load on the electrical network

The difference between electrode boilers and heating elements

A do-it-yourself electrode boiler made or produced at a factory has smaller overall parameters than other household analogues.

Such features ensure significant distribution of this heating system.

What are the advantages of using

Homeowners do not have to completely give up gas if the premises already have wiring from radiators and mains installed. Often such ion heating boilers play a duplicate role in ready-made systems. Although, if the cost of gas rises faster, then they can be used as the main source of heating.

Their positive properties include:

high degree of reliability;
temperature is controlled automatically;
real efficiency reaches 99%;
installation additional equipment may not be carried out;
startup and operation in systems designed to operate on gas;
increased efficiency.

An electric electrode boiler operates exclusively on alternating current. Go to constant pressure not allowed.

Thanks to the built-in automation, the exposed optimal temperature held for a specified time. You can increase energy efficiency by programming the system to lower the temperature on weekdays when no one is home, and raise it in the evening and on weekends.

According to reviews, electrode boilers have a good emergency shutdown system. If a possible coolant leak is detected, automatic shutdown device. Also in these heating devices no short circuit occurs.

The coolant for such equipment can be purchased directly from the manufacturer, who will provide the appropriate quality composition.

What are the disadvantages of using

In addition to the advantages, each system has its disadvantages. Ion electrode boilers have the following disadvantages:

increased requirements for electrolytic water quality;
it is necessary to carry out mandatory grounding of the device in order to reduce possible risks working with electrical appliances;
it is advisable to maintain the water temperature in the system no higher than 70-75 0 C in order to reduce energy consumption;
the cathode and anode need periodic descaling to ensure greater efficiency for the ionization process;
the system requires mandatory coolant circulation, so a water pump must be installed in it.

Voltage drops are not dangerous for the boiler itself, but they are necessary for the accompanying automation. A UPS or, at a minimum, a surge protector will help you avoid damage from an unstable network.

Rules for safe operation

The optimal water temperature for operation is 50-75ºС. This information is indicated in the device passport. In closed and open systems, expansion tanks must be used.

Exit from the boiler expansion tank V open system must not have any shut-off valves.

Do-it-yourself installation of an electrode boiler into the system must be accompanied by the installation of an automatic air valve, a pressure gauge for measuring operating pressure and an explosion safety valve.

It is possible to install it in the heating circuit as an additional heating source, but in this case it is necessary to bring the quality and type of coolant into proper condition.

Not all radiators can work with ion boilers, and the quality of the coolant suits the units. With very big reservations, cast iron radiators can be used.

When installing, one and a half meters of supply pipes to the boiler must be made of non-galvanized metal. After this section, the use of metal-plastic is allowed.

Grounding according to PUE standards is mandatory. The cable should have a cross-section of 4-6 mm. Minimum electrical resistance it must be no higher than 4 ohms.

If possible, the entire system of pipelines and consumers must be flushed before installation. clean water. It is allowed to use special chemicals, helping to clean highways.

After the coolant has been used up, it must be properly disposed of. It is not allowed to pour it into sewers, water bodies or into the ground.

When making calculations, they are guided by the following parameter: 8 liters of coolant must correspond to 1 kW. To operate in the 10 l per 1 kW mode, the device will be turned on almost constantly, which may negatively affect its performance properties.

Let's make a brief overview of the most popular models of electrode heating boilers, which have already been rated by consumers, identified their strengths and weak sides. In choosing such equipment the name trademark in itself means little. Only in operation can you understand how well the boiler copes with the task, how often it breaks down, and what problems there are in operation. The purpose of this rating is to name the best Russian and European brands.

The best Russian electrode heating boilers

The big advantage of domestic equipment is that it is perfectly adapted to real-life operating conditions - with voltage fluctuations, unstable current, etc. At the same time, in terms of price, maintenance costs, unpretentiousness and reliability, it will give a head start to most competitors.

The Galan company was one of the first to begin developing this family of heating devices, using developments in the military space industry and patented engineering solutions. For a quarter of a century, even the first line of devices has not failed and continues to function.

Model power 36 kW, suitable only for three-phase network. The maximum current for three phases is 27.3 A. The control is mechanical; the boiler is installed only on the floor.

This model “Vulcan” 36 has many advantages, let’s highlight the main ones:

ease of maintenance and operation.
safety and reliability - in the event of an electric short circuit, overheating of current supply wires, excess set temperature, due to a coolant leak, the boiler shuts down.
the coolant volume is 600 liters, the volume of the heated room is 1700 cubic meters.
affordable price - the average price is 11,000 rubles.

A safe and productive single-circuit electrode boiler, which is often preferred by owners of country property. Equipment power 15 kW, suitable only for three-phase network. The maximum current for three phases is 22.7 A. The control is mechanical; the boiler is installed only on the floor. As an additional option, it is possible to connect external control.

It is bought due to the following advantages:

Simplicity and ease of use - even a beginner can understand the device.
light weight of the structure and compact dimensions - only 5.3 kg.
big square heating - up to 180 sq.m.
electronic automatic control - the presence of a control unit that allows you to create an interval for heating the coolant.
ability to connect to a room temperature indicator.
The average price of the device will be 7800-8000 rubles.

Manufacturer LLC "Plant RusNIT", Ryazan. Can be used as a main or backup source heat in the house or household premises area up to 80 sq.m. Power 8000 W.

Specifications:

three-stage power adjustment - 30%, 60% or 100%;
The heat exchanger and heating element are made of of stainless steel;
antifreeze or distilled water can be used as a coolant in the system;
the presence of a thermal switch that prevents heating of the coolant above 90°C;
can be connected to a circulation pump;
Manufacturer's warranty - 2 years.

Among the disadvantages we note manual selection power, difficulties when connecting, requiring certain skills.

The cost of the unit is from 15,000 rubles.

The best European electrode heating boilers

It so happens that European brands deserve more trust from us. Objectively, some models are indeed an order of magnitude better than domestic ones, but lack of adaptation to our conditions makes them fail very quickly, and repairing them is not always profitable.

A model from a famous German brand, which is traditionally distinguished by its impeccable performance, high quality, reliability and durability. Power 9.9 kW, recommended for connection to a three-phase network with a maximum current of 15 A for three phases. Wall installation. The package includes a circulation pump and an expansion tank.

Let us highlight the main advantages of this device:

light weight and compact dimensions.
easy installation- The kit includes brackets.
steel body with excellent thermal insulation.
Efficiency 99%.
The kit includes a 7-liter expansion tank, circulation pump, safety valve, pressure control sensor, blocking sensor that protects the housing from overheating.

Minus - Buderus Logamax E213-10, like all German equipment, is designed for a stable voltage in the electrical network. Therefore, for long-term operation of the device, you need to take care of purchasing a stabilizer.

The cost of the unit will cost on average 38,000 rubles.

One of the best electrode boilers of the Czech brand, the power of which is 24 kW. The single-circuit model for wall mounting is distinguished by functionality, safety in operation and durability. Can be connected to a “warm floor” system or a boiler for heating hot water. The package includes 4 heating elements, a circulation pump and a 7-liter expansion tank.

Let's highlight a few more advantages of the unit:

electronic control with power indicator, display and thermometer;
4 power levels;
Possibility of temperature control in the range of 30-85°C;
overheating safety system;
high efficiency - 99%;
soft start function;
presence of a safety valve and air vent.

Of the minuses, it is worth noting that the boiler is too noisy and needs to be connected through a voltage stabilizer.

Cost - from 43,000 rubles.

One of the best electrode boilers domestic production, which some users call a mini-boiler room - one device contains heating elements, membrane tank, circulation pump.

Note strengths device:

LCD display at the bottom of the case;
convenient control panel, which is hidden behind a special door;
the operation is controlled by a microprocessor, but the boiler can also be switched to manual control;
suitable for heating residential and industrial facilities;
silent operation;
emergency condition indication;
coolant pressure and level sensor.

Like any other device, the Evan Warmos QX-18 also has disadvantages - heavy weight, large dimensions, frequent capacitor failures, mandatory connection through a voltage stabilizer.

The cost of the device is from 49,000 rubles.

Polish-made electrode boiler with a power of 12 kW, capable of heating a room measuring 120 sq.m. The device is stylish and compact in size. Suitable only for a three-phase network with a maximum current of 20 A for three phases. A circulation pump is included in the package. Permissible coolant temperature 20-85°C, maximum pressure 3 Bar.

Let's note the advantages of the model:

Electronic microprocessor control system for the device.
Light weight - 18 kg.
Quality system protection - against overheating, safety valve, air vent.
Self-diagnosis system - in case of any malfunction, an error code appears on the display, which can be deciphered according to the instructions.
Affordable price - from 39,000 rubles.

Cons: no expansion tank included.

The manufacturer's warranty is 1 year.

VIDEO: Is it really possible to save money on an electrode boiler?

The coolant in these boilers is heated due to ionization - the molecular splitting of the coolant into ions with positive and negative charges. The ions tend to the oppositely charged electrodes, releasing energy. The process of ionization and heating of the coolant occurs in a small chamber. The coolant can be an ethylene glycol solution or specially prepared water. The coolant resistance drops when heated, currents increase, and the boiler goes into overdrive. maximum power. The modes are set and controlled automatically, allowing you to set and maintain the desired temperature of radiators or room air. Used for control room thermostat"Comfort". The company's latest development is GSM module, with which you can control the boiler remotely.

Electricity consumption for electrode boilers is less than for other types of equipment, which is explained by the principle of their operation and control. Structurally, electrode boilers are very reliable. The only reason for failure may be a coolant leak - in this case the boiler will simply turn off.

Advantages of electrode boilers

efficiency (low power consumption);
large heating area with the same power as other types of boilers;
small dimensions;
high efficiency;
large working resource;
low cost;
fire safety;
noiselessness.

Models and prices for Galan electrode boilers

Electrode boilers Russian manufacturer"Galan" is the most popular among consumers. These are small flow-type units that do not require boiler inspection approval for installation. Galan boilers are represented by three groups of equipment of different capacities, designed for heating different areas.

Electrode boilers OCHAG series

Includes budget units low power for heating small areas:

boiler Hearth - 3 for an area of up to 120 m2 - length 275 mm, diameter 35 mm, weight 0.9 kg, power 2 and 3 kW, price 8,450 rubles;
boiler Hearth - 5 for an area of up to 230 m2 - length 320 mm, diameter 35 mm, weight 1.05 kg, power 5 kW, price 8,500 rubles;
boiler Hearth - 6 for an area of up to 280 m2 - length 335 mm, diameter 35 mm, weight 1.1 kg, power 6 kW, price 8,550 rubles;

Electrode boilers of the GEYSER series

Includes heating units for medium-sized rooms:

Geyser boiler - 9 for an area of up to 340 m2 - length 360 mm, diameter 130 mm, weight 5.0 kg, power 9 kW, price 12,100 rubles;
Geyser boiler - 15 for an area of up to 550 m2 - length 410 mm, diameter 130 mm, weight 5.3 kg, power 15 kW, price 16,000 rubles.

Electrode boilers of the VULKAN series

Includes powerful heating units for large areas:

Vulcan boiler - 25 for an area of up to 850 m2 - length 460 mm, diameter 130 mm, weight 5.7 kg, power 25 kW, price 16,200 rubles;
boiler Vulcan - 36 for an area of up to 1200 m2 - length 570 mm, diameter 180 mm, weight 11 kg, power 36 kW, price 23,500 rubles;
Vulcan boiler - 50 for an area of up to 1650 m2 - length 570 mm, diameter 180 mm, weight 11.5 kg, power 50 kW, price 25,700 rub.

According to customer reviews, Galan electrode boilers are inexpensive, economical and reliable. The units are quickly installed and operate silently. Infrequent problems relate mainly to automation and electrical parts (spontaneous boiler shutdowns, failure of automatic devices, etc.) and are eliminated warranty repairs. Customers are satisfied with the operating life of the equipment - many samples work reliably for more than 7-8 years. The vast majority of consumers believe that the choice of this equipment was made correctly.

The photo shows the Galan electrode boiler of the VULKAN series

Other popular models of electrode boilers

In addition to Galan boilers, on Russian market The following equipment is known:

EOU flow boilers. These single-phase 2-12 kW and three-phase 6-120 kW electrode boilers are designed to heat rooms up to 2400 m2. EOU boilers are highly efficient and can operate in closed systems without pumps. They have three stages of power adjustment and up to 9 electrodes. Cost 4,500 – 46,000 rubles.
Electrode boilers ION. Small units for areas up to 750 m2. The most expensive models have several power levels. The cost of single-phase boilers (2–12 kW) is 5,500 – 7,000 rubles, three-phase (up to 36 kW) 9,000 – 12,000 rubles.
Electrode boilers Obriy. Boilers with step-by-step power control 12/24/36 kW, heating area 40 - 750 m2, network 220 and 380 V. Coolant - water solution of caustic soda. The cost of boilers is 17,500 - 45,000 rubles.

conclusions

According to customer reviews, Galan electric electrode boilers are the most reliable and inexpensive equipment for heating private homes. A large selection of boiler models from this company allows you to select equipment that exactly matches the characteristics of your home.