Electric energy-saving heating boilers

Tips & Tricks

• Two-circuit devices (both wall-mounted and floor-standing) are recommended to be installed using the three-phase method. In this way, many problems that may arise in the future will be avoided.
• Wall units can be installed anywhere. As for floor-standing powerful devices, it is advisable to install them in separate rooms.
• If you decide to install a heating electric boiler in a very spacious house, then be prepared for significant spending on electricity. That is why experts do not advise using such units for heating large-area buildings.
• Double-circuit units, as a rule, do not have equipment in the form of a boiler.In this they differ from single-circuit instances.

For information on how a double-circuit boiler works, see the video below.

Types of energy saving boilers

When choosing a device for heating private houses, summer cottages, offices, shops, pharmacies and other industrial, non-residential and utility rooms, energy-saving electric heating boilers are increasingly preferred. And this is justified - the cost of energy resources is constantly growing, so the use of economical energy-saving cats will save on paying bills for electricity.

The demand for them is constantly growing, as well as for economical gas boilers. Heating electric boilers are easily and simply connected to various heating systems (storey, central, individual), while it can be of a mixed or storage type. Save on electricity consumption Energy-saving electric boilers will also help if you turn them on at night using a two-tariff electricity meter (the cost of 1 kW of electricity at night is much lower).

With the help of this video, you can learn a lot about heating boilers powered by electricity:

Energy-saving heating electric boilers are usually classified according to the following criteria:

• type (electrode, induction, heating elements);
• installation site (floor and wall);
• power in kW (from 2 to 120);
• the number of circuits (single, double circuit);
• power supply (single-phase, three-phase).

Energy-saving electric heating boilers are used only where it is possible to connect to electric power sources. Economical gas boilers are used if it is possible to connect to a gas main.

Heating of premises with the help of electric energy-saving boilers of the electrode type (they are also called ion or ion-exchange boilers) is carried out due to the flow of electric current through a liquid heat carrier, which is water (most often), electrolyte, oil.

Heating is carried out due to the disordered movement of liquid ions moving from the cathode to the anode, while their chaotic movement leads to a rapid increase in the temperature of the coolant. Electric energy-saving boilers for an ion-type house take up little space and are considered the best when it is necessary to heat areas up to 250 m2 or 750 m3, while the temperature at the outlet of the boiler can reach 95 0C.

The video shows a mounted heating economical electric boiler, which is considered the best:

The photo shows induction energy-saving electric boilers, which have an inductor in their device. With its help, the coolant is heated efficiently. It differs from other types of heating electric boilers in the absence of heating elements, which has a positive effect on its operation, it, in principle, cannot break down and does not require maintenance during operation.

In addition, microvibration occurs inside the electric boiler during operation, which prevents the formation of scale on the internal elements of the boiler. Such a heating boiler does not have detachable elements, which significantly extends its service life.

The price of energy-saving electric boilers of this type is quite high and exceeds the cost of economical electrode electric boilers of other models by several times. But the price is justified, because.such an electric boiler has a long service life and does not require maintenance during operation.

The photo shows an ion economical electric boiler, the boiler attracts with its design.

In heating elements of electric cats, the coolant is heated from the heaters in the device, which are connected to a power source.

The photo shows the appearance of the most common electric boiler with tubular heaters (heaters). The price of heating elements boilers is not high, because they are produced by many manufacturers and competition forces us to look for ways to reduce the cost of products that do not affect the quality of the electric boiler.

Pros and cons

Today, electric energy-saving boilers are very popular. First of all, this is due to the rise in the cost of utilities. But electricity is still cheaper than gas. And if in high-rise buildings, such readings can be shared between all apartments, then the owners of private houses have a somewhat more difficult time. They pay for themselves, so even a small house is extremely expensive to heat with gas in winter.

But besides such savings, electric boilers have a number of other positive features:

unlike their gas counterparts, the efficiency of electric models reaches almost 100%, which allows you to save resources (the same electricity);

• despite the simple design, such units are distinguished by reliability and a long service life (provided that the installation and use itself takes place in accordance with the instructions and requirements of the manufacturer);
• since the operation of electrical models is based on the principle of an electric circuit, if a leak suddenly occurs, the device will open the circuit on its own, due to which the unit will turn off - but this is provided that the boiler was installed and connected according to all the rules;
• manufacturers provide units of completely different sizes and shapes to the market;

• despite the fact that such equipment depends on the availability of electricity, the boiler itself is not susceptible to current fluctuations, therefore, even if there are drops in the network, high-quality equipment will not fail;
• during operation, the boiler does not produce any extraneous noise, thanks to which it is possible to install the device in any living space, and not just in the basement or in the attic;
• the operation of electric boilers is such that their active state does not affect the environment in any way, which means that there is no harm to the health of households;
• autonomy allows installation in any type of private house, while the owner himself does not need to constantly monitor the device;
• energy-saving models in their design have a relay that controls the set temperature, due to which the house is always warm, and the whole process occurs automatically and, again, the owner does not need to constantly check the unit;

installation of the device does not require any permits, moreover, such devices do not need a chimney or a vent.

Summing up the advantages of electric energy-saving boilers, one cannot fail to note another significant plus - the price.For example, a single-phase model costs in the range of 6000-7000 rubles, and two-phase models cost from 10,000 rubles. And if you still choose equipment for the holidays or discounts, then it can cost an order of magnitude cheaper, and together with the installation.

But in every barrel of honey there is a fly in the ointment. The same applies to electric energy-saving boilers. Firstly, as the name implies, such a technique is powered by electricity, that is, if there is no current, then there will be no heat at home. Secondly, whatever the manufacturers say, these boilers are not designed for too large rooms. Therefore, many consumers who installed such a unit in an apartment are more satisfied than those who installed it in a private house. And the last drawback - hot water will be either in batteries or in a tap. At the same time, only two-circuit models can cope with these tasks, and they are more expensive.

Nevertheless, there are still more positive aspects, so the popularity of energy-saving electric boilers still continues to grow.

Rating TOP-5 wall-mounted double-circuit boilers

Of the huge number of double-circuit wall-mounted boilers, it is worth highlighting:

Buderus Logamax U072-12K

Wall-mounted double-circuit unit, designed specifically for operation in Russian conditions. Able to effectively heat a room with an area of ​​​​100-120 square meters. m., as well as provide hot water for a family of 3-4 people.

According to the manufacturer, the boiler can withstand voltage drops from 165 to 240 V, although practice does not confirm this. The unit is equipped with a pre-mix burner that can be adjusted to a specific heating mode.

Main characteristics:

• coolant temperature - 40-82 °;
• hot water temperature - 40-60 °;
• pressure in the heating circuit (max) - 3 bar;
• pressure in the DHW line (max) - 10 bar;
• dimensions - 400/299/700 mm;
• weight - 29 kg.

The boiler is easy to install and quickly set up, as it is sold already prepared for operation.

Navien DELUXE 13K

The Korean company Navien positions itself as a manufacturer of high-quality and inexpensive heat engineering.

The DELUXE 13K boiler with a power of 13 kW is capable of heating an area of ​​up to 130 sq. m., which is suitable for a small house or apartment. The model has a low gas consumption, which is not typical for dual-circuit devices.

Characteristics:

• temperature in the heating circuit - 40-80 °;
• hot water temperature - 30-60 °;
• pressure in the heating circuit (max) - 3 bar;
• pressure in the DHW line (max) - 8 bar;
• dimensions - 440x695x265 mm;
• weight - 28 kg.

Korean boilers are criticized because of the high noise level, but the low price and reliability more than compensate for this shortcoming.

Vaillant turboTEC pro VUW 242/5-3

There is no need to represent Vaillant - one of the leading manufacturers of heat engineering is known to everyone. Vaillant boiler turboTEC pro VUW 242/5-3 with a power of 24 kW is intended for private houses or offices medium size - up to 240 sq..m

Its capabilities:

• temperature in the heating circuit - 30-85 °;
• hot water temperature - 35-65 °;
• pressure in the heating circuit (max) - 3 bar;
• pressure in the DHW line (max) - 10 bar;
• dimensions - 440x800x338 mm;
• weight - 40 kg.

Vaillant products are rightfully considered one of the benchmarks in terms of quality and durability. Specialists and ordinary users note the reliability and stability of these boilers.

Bosch Gaz 6000W WBN 6000- 12C

Double-circuit gas boiler of convection type. With a power of 12 kW, it is able to heat a room up to 120 sq.m., which is suitable for an apartment, office or small house.

Boiler parameters:

• temperature in the heating circuit - 40-82 °;
• hot water temperature - 35-60 °;
• pressure in the heating circuit (max) - 3 bar;
• pressure in the DHW line (max) - 10 bar;
• dimensions - 400x700x299 mm;
• weight - 32 kg.

Bosch is widely known throughout the world, but recently there has been a noticeable decline in the quality and reliability of its products.

This is due to the dispersion of production, the discrepancy between the parameters and quality of parts, and other organizational reasons.

BAXI LUNA-3 COMFORT 240 i

The brainchild of Italian engineers, the BAXI LUNA-3 COMFORT 240 i boiler has a power of 25 kW. This is suitable for heating rooms up to 250 sq.m.

The copper heat exchanger allows to receive the maximum efficiency of work. The efficiency of the boiler is 92.9%, which is a very high figure for double-circuit models.

Unit parameters:

• temperature in the heating circuit - 30-85 °;
• hot water temperature - 35-65 °;
• pressure in the heating circuit (max) - 3 bar;
• pressure in the DHW line (max) 8 bar;
• dimensions - 450x763x345 mm;
• weight - 38 kg.

The boilers of the Italian company demonstrate high performance and reliability. The only drawback is the low organization of service maintenance.

The principle of operation of electric boilers

Heating boiler wiring diagram.

The electric boiler can be connected everywhere, it works normally where there is power supply, it does not need to purchase and store fuel or equip a special room. It is enough just to connect to the mains and remove the pipeline. For many people, such boilers have become an indispensable tool.Due to its compact size, the electrode boiler can be installed even in a very small room, while the modern design of the equipment will allow it to fit seamlessly into any interior. The basic equipment includes an expansion tank, a heating element, elements for regulating and controlling the operation of the heat generator.

The principle of operation of the equipment is extremely simple: a coolant is supplied to the expansion tank, which is heated by electricity and then distributed through radiators and pipes. Heating electric boilers are distinguished by high efficiency, which often reaches 100%, ease of operation, affordable cost of units, silent operation, safety and environmental friendliness are also undeniable advantages of such heating equipment. Of course, in addition to the advantages, heating boilers powered by electricity also have certain disadvantages, which are largely related to the domestic organization of the electrical system. It is necessary to remember about the cost of electricity, which is increasing all the time, about frequent interruptions in the supply of electricity, power surges that adversely affect the functional part of the equipment and its service life.

Electric boilers for heating are endowed with a stylish and modern design, ease of maintenance and step-by-step power switching. Equipment can be connected in cascade to create a powerful installation. Electric boiler: advantages and disadvantages

Scheme of the device of the electric boiler.

Like any other equipment, an electric boiler has its advantages and disadvantages. Among the indisputable advantages, one can single out, first of all, compactness.This equipment is really very compact and almost imperceptible in the overall design of the system. Such boilers are low cost, have a smooth output to the rated power and, among other things, the peculiarity of their operation eliminates the possibility of an emergency in case of water leakage. If water suddenly disappears in the system, the equipment simply will not work.

Among the shortcomings are the following points:

• the need for water treatment. The equipment will work effectively only if certain values ​​​​of water resistivity are provided, which very often cannot be measured and brought into line with the standards;
• ensuring optimal circulation of the coolant. Under the condition of weak circulation, the water in the electric boiler can boil. If the forced circulation is too fast, the equipment may not start;
• non-freezing liquids cannot be used as a heat carrier.

Thus, having become acquainted with the principle of operation of an electric boiler, everyone will draw conclusions for themselves: to buy it or not.

Peculiarities

In order for the dwelling to be comfortable and livable, it is necessary to install a high-quality heating system in it. To date, there are several options for such equipment. One of the most popular and common units in this case is a double-circuit boiler.

This effective device is turned to when the gas main is too far from the home.In addition, double-circuit boilers are mounted when the owners do not have the opportunity to use solid fuel to heat the living area. High-quality double-circuit units are good because they perfectly warm housing. In addition, with their use, people have the opportunity to use hot water.

The operation of a double-circuit boiler is based on the conversion of electricity into heat. In this case, the carrier itself goes through the heating unit in a natural way or by force. Then it moves into the piping of the entire structure.

A distinctive characteristic of double-circuit boilers is their safety. That is why they are so often installed in country and country houses / cottages. According to experts, such a unit is a whole mini-boiler room.

TOP 5 best electric boilers

Vaillant eloBLOCK VE 12 12 kW

Electric boiler in white. Including three-phase mains voltage, additional functions in the form protection against overheating and freezing.

An external control connection is possible. Mounted on the wall.

Characteristics:

• boiler type - heating element;
• contours - single-circuit;
• power - 6-12 kW;
• Efficiency - 99%;
• control - electronic;
• installation - wall;
• the number of power steps - two;
• mains voltage - three-phase;
• circulation pump - yes;
• expansion tank - yes, 10 liters;
• coolant temperature - 25-85 degrees;
• overheating protection - yes;
• auto diagnostics - yes;
• frost protection - yes;
• power indicator - yes;
• White color;
• weight - 33.1 kg;
• dimensions - 410 * 740 * 310 mm;
• price - 40300 rubles.

Advantages:

• simple control;
• built-in expansion tank and pump;
• many additional features;
• uniform heating of the room;

Flaws:

high price;

EVAN Next 12 12 kW

Single-circuit electric boiler with heating elements with wall installation. Built-in mechanical control. Evenly heats a room of 120 m2.

Due to its low cost, it is an affordable device. It has a three-phase type of mains voltage.

Characteristics:

• type of device - electric, heating element;
• the number of circuits - single-circuit;
• thermal power - 6-12 kW;
• heated area - 120 m2;
• Efficiency - 99%;
• control - mechanical;
• installation - wall;
• mains voltage - three-phase;
• power steps - 2;
• coolant temperature - 30-85 degrees;
• additional functions - protection against overheating;
• dimensions - 205*600*105 mm;
• weight - 8 kg;
• White color;
• price - 10020 rubles.

Advantages:

• quality assembly;
• acceptable cost;
• reliable design;
• simple control;
• warms up well even in severe frosts;
• does not make noise;
• compact.

Flaws:

little functionality.

EVAN Next 7 7 kW

Heating copper of wall installation with heating elements. Single-circuit type with mechanical control. Heats a small area of ​​70 sq.m. Small dimensions allow you to install in a small apartment.

Characteristics:

• unit format - electricity, heating element;
• the number of circuits - single-circuit;
• power - 7 kW;
• heated area - 70 sq.m;
• Efficiency - 99%;
• control - mechanical;
• installation - wall;
• power levels - three;
• mains voltage - single-phase / three-phase;
• functions - protection against overheating;
• dimensions - 205*600*105;
• weight - 8 kg;
• White color;
• price - 8560 rubles.

Advantages:

• reliable design;
• good quality;
• durable materials;
• pleasant appearance;
• compactness;
• affordable price;
• stainless heating element;
• simple operation.

Flaws:

• small functionality;
• sometimes noisy.

EVAN Warmos-IV-9,45 9.45 kW

Heating boiler of single-circuit type with electric type of heating. Wall mounting with electronic display for management. Heats a fairly large area of ​​94.5 kW.

Options:

• type of device - electric, heating element;
• the number of circuits - single-circuit;
• thermal power - 9.45 kW;
• heated area - 94.5 kW;
• placement - wall;
• mains voltage - three-phase;
• control - electronic;
• Efficiency - 99%;
• equipment - display;
• frost protection - yes;
• connection of a warm floor - yes;
• thermometer - yes;
• overheating protection - yes;
• auto diagnostics - yes;
• White color;
• dimensions - 380 * 640 * 245 mm;
• weight - 27 kg;
• price - 18500 rubles.

Advantages:

• nice design;
• enough to heat a private house;
• many additional features;
• quality materials;
• affordable price;
• allows to use as a heat carrier for heating water;
• stable work;
• doesn't make noise.

Flaws:

It takes a lot of electricity and water for heating.

Skate RAY 12 KE /14 12 kW

Electric heating boiler with three-phase mains voltage. equipped with electronic control, good power for heating a private house.

It is installed on the wall of the required room or in the closet of the house. Includes many features such as external control.

Characteristics:

• unit type - heating element;
• the number of circuits - single-circuit;
• thermal power - 6-12 kW;
• Efficiency - 99.5%;
• control - electronic;
• placement - wall;
• power levels - two;
• mains voltage - three-phase;
• circulation pump - yes;
• expansion tank - there is 8 liters;
• temperature - 25-85 degrees;
• external level connection - yes;
• frost protection - yes;
• thermometer - yes;
• weight - 24 kg;
• White color;
• price - 36551 rubles.

Advantages:

• ease of use;
• compact dimensions;
• heats up batteries quickly;
• keeps the temperature for a long time;
• quality assembly;
• almost no noise;
• copes with an area of ​​100 sq.m.

Flaws:

• high power consumption;
• high price.

Design features

A double-circuit type heating boiler is distinguished by a simple device, although it performs the function of a mini-boiler room. Both of its circuits can work both separately and in pairs, heating the house and providing hot water at the same time. The considered equipment consists of the following components:

• heat exchanger;
• boiler;
• heating elements;
• expansion tank;
• circulation pump;
• air vent;
• safety valve;
• automation;
• control unit.

Electric double-circuit differ from single-circuit models by the presence of a built-in boiler in the design.

In appearance and the main design features of the model of electric boilers can be:

• wall-mounted - compact and relatively light;
• floor - massive, with a high power index (more than 60 kW).

As the name implies, the heating equipment of the first group is mounted on walls or on specially installed metal frames. The second group of boilers is placed directly on the floor in a specially designated place. It should be noted that modern electric boilers are quite aesthetic and in no way can spoil the interior of the room.

According to the method of heating can be divided into three groups:

• TENovye - highly reliable, having one or more heating elements inside the tank in the form of a metal tube;
• electrode (or ion) - warming up the coolant in the process of passing through the liquid medium of alternating current. They have the ability to self-shutdown in case of a short circuit, a maximum increase in temperature and a decrease in the volume of water to a critical level;
• induction - functioning thanks to inductors. They are energy saving devices.

The first option refers to indirect heating of the coolant, and the second is considered as direct heating.

By power, electric boilers intended for heating needs can be:

• single-phase (up to 12 kW);
• three-phase (more than 12 kW).

It is recommended to select power with the help of specialists, since only they are able to make a competent calculation. The method of choosing a boiler according to the area of ​​\u200b\u200bthe house is incorrect, since in addition to this parameter, a number of others are taken into account (wall thickness, number of openings, orientation to the cardinal points, etc.).

As a rule, household heating units operate from a 220V network.

Energy-saving electric heating boiler: working principle

Energy-saving electric boilers for the home are designed for closed heating systems. They can serve as both the main and auxiliary heat source. The device works with or without a water circulation pump. The operation of the system is controlled by a thermostat, which turns off or turns on the device during temperature fluctuations.

The operation of electric boilers is based on the process of ionization of the coolant. Depending on the method of converting electrical energy into thermal energy.Devices are electrode or induction.

In electrode models, the current moves between the electrodes. The body of the unit is used as the zero electrode. And the phase is inside the device. There is water between the wall and the rod, which is used as a heat carrier and as an element of the electrical circuit.

The diagram shows the differences in the operation of electrode and heating elements equipment

It is worth noting the principle of operation of an induction electric boiler, in which the method of electromagnetic induction is used. Voltage is applied to the induction coil. An electromagnetic field is formed, which heats the walls of the case and the core. These elements transfer their heat to the water.

Economical electric boilers can be the best solution if you do not know how to heat your house with electricity inexpensively. Their efficiency is 96÷98%. Energy savings can be approximately 30-35%.

Features of the device of an electrical appliance

A few words about electric boilers and the principle of their work

An electric heating boiler is a device that maintains a warm indoor climate due to the set temperature for the heat carrier located in a closed system. It is used in cases where it is not possible to install a circulation pump. Electric boilers easily cope with the territory up to 2400 sq.m.

The principle of operation of electric boilers is based on the ionization of the coolant. As soon as the device is connected to electricity, the current is directed to the coolant and passing through it, raises its temperature. This process, however, takes a matter of minutes. The process of heating water may differ slightly in each individual model, so the boilers have their own classification:

• TEN-ovy - this category of devices has a tubular-type heater that provides water heating while it moves in the circuit;
• electrode - here the water is heated by electrical impulses, and not by a heating element;
• induction - the work is based on the principle of magnetic induction, due to which the ferromagnetic alloy is heated, which in turn surrounds the water.

Depending on the principle of operation, the price of such products may vary. In addition, the number of contours also plays an important role. If this is a single-circuit boiler, then it will cost less, because such a device cannot simultaneously heat tap water and batteries. But 2-circuit ones are a little more expensive, but the comfort from them is better. So this is worth remembering.

Let's sum up

Having dealt with the device and the principle of operation of electrode boilers in detail, several important conclusions can be drawn.

The ability to economically achieve a high level of power and quickly heat large volumes of water has a great influence on the overall dimensions of heat generators. Compact devices with minimal weight can be easily installed anywhere in the house.

If there is a need to heat a room with a large area (500 or more square meters), it is quite possible to create a connection scheme for several electrode boilers. One more positive point should be noted - when installing ionic electric heating, permission and control of the boiler supervision inspection are not required.

Of all the heating devices that exist today, the electrode boiler seems to be the most acceptable solution.Simple and economical equipment is able to give warmth to our home and heat hot water for domestic needs.

I put a two-tariff electricity meter on a 220V network. It stands in the house along with the gas boiler "hearth - 3" (Galan). In the boiler control panel, I installed a 20A direct-flow ammeter. When the boiler is turned on from Tobratka, 42 degrees shows 6A of consumption, and on the meter at home it shows 13A, despite the fact that one Led light is on in the house and the TV is on and absolutely nothing else. I don't get what's funny? Tell me who knows.

Yuriy Yuriy Gorovoy May 18, 2017, 12:07 pm

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