Inexpensive heat for every home electric heating energy saving boiler

How to choose

The main criterion is power. It is calculated using mathematical formulas, but very often average values are taken as the basis. Based on them, the power of the electric boiler must be at least 1 kW per 10 m².

But these data are accepted only for single-circuit boilers. if it is necessary to prepare hot water, the value must be increased. Also, the possibility of connecting it has a great influence on the choice of model.

If the power of the boiler is small, then it can operate from a single-phase network.

More powerful devices require three-phase equipment, but there are also samples that can be connected to any of the available ones. There is a difference between different models in the configuration and, accordingly, the price.

Ion electric heating boilers are in the greatest demand; they are economical and equipped with:

circulation pump
Security systems
Remote programmer
expansion bottle

The presence of nodes that expand the capabilities of the boiler during the off-season can significantly reduce the electricity consumption of an electric boiler. which makes such models the most economical. Consider the functional features of devices from various manufacturers and determine which electric boiler is the most economical.

Protherm products are the most famous. It is represented by a wide range of models and is characterized by an ideal combination of price and quality.

These boilers are one of the most reliable and are in demand not only in Russia, but also in Europe. Most devices are designed for use in residential buildings. They have technical stability and original design solutions. All devices have an intuitive control panel, compact dimensions and can be installed in any room.

Protherm boilers can be connected not only to heating systems, but also to underfloor heating. They are available in wall and floor versions, the latter having a 110 liter boiler.

The power range varies from 6 to 28 kW. Most of the models operate on a 380 V network, but there are also those optimized for 220 V. The boiler is equipped with a pump and an automatic diagnostic system, there is an input for the boiler and a convenient LCD display.

The Russian manufacturer offers an economical electric boiler of the Evan brand. It has high reliability and quiet operation. The control of heating elements in them is carried out with the help of a seven-stere block. High reliability and complete absence of leaks are guaranteed by the unique design of the heat exchanger. It is made in the form of a single, seamless part.

Equipping the boilers with circulation pumps and an expansion tank significantly increases their capabilities, and a modern microprocessor unit and a multi-level security system make their operation reliable and completely safe. Heating modes are selected according to external conditions, which allows reducing the load on the electrical network and reducing heating costs.

Another fairly well-known brand is Dakon. An economical boiler from this manufacturer has a power of 4 to 60 kW. Their standard package includes a multi-stage circulation pump made in Germany.

Each device has:

Water pressure sensor
Safety valve
Filter

Some modifications have a built-in expansion tank; samples with a power of up to 12 kW can be connected to both a 380 V and 220 V network.

Having considered models of heating devices from different manufacturers, we can conclude that there are no big differences in their design.All of them are equipped with modern security systems and are multi-stage, which allows them to be used most rationally and economically when heating small rooms.

Positive features of EPO-9,45220V

Economical electric boilers have many advantages over more powerful equipment. For example, they are easy to operate, because they have a control panel. This makes the device safe and easy to use. The boiler body is durable, because in the factory it is coated with a composition that prevents the formation of corrosion and provides protection for the components, as well as a long service life of the unit itself. Such economical electric boilers can be used without making additional expenses. After all, you do not have to clean the chimney, as well as unload and load fuel.

Installation and maintenance are not accompanied by difficulties: the chimney does not have to be installed, as well as the coal bunker, as well as the fuel tank. During operation, the device is silent and environmentally friendly. Its work does not depend on external factors, and the functioning will be carried out automatically. There is no need for constant monitoring, as well as in the boiler room.

Economical electric boilers with high efficiency for heating a private house modern models

November 11, 2016

The consumer has long been accustomed to the fact that in each store he is offered discounts and promotions that help save money. This fully applies to real life, when property owners are trying to reduce costs when choosing a heating system. This can be said about heating equipment, including electric boilers.

Despite the fact that network units are “gluttonous”, and their work is accompanied by high electricity bills, on sale today you can find very economical equipment that will have a high efficiency. Such devices will be discussed below. The article will consider several models of electric boilers, one of which you can choose for heating your house or apartment.

Advantages and disadvantages

The heat-transmitting, heat-accumulating parts of the PHE equipment are cast from alloys that heat up quickly and cool down slowly. The technical characteristics associated with calorific value are greatly enhanced by the special arrangement of large electrodes. The rate of the ion-exchange process is monitored by a set of "smart" sensors. A significant minus one: contrary to the assurances of the manufacturers, when warming, this technique takes more current. Hence the extra spending.

EOU, protected from power surges by powerful controllers, boil only with poor adjustment, careless maintenance. They are ready to heat any mixture corresponding to the salt composition, from salted distilled water to prepared antifreeze. It is not in vain that manufacturers emphasize that the cost of operating these devices is comparable to the cost of using solid fuels. But suppliers talk about resistance to rust in vain, because after 2-3 years the critical blocks begin to slow down due to corrosion.

Single-phase and three-phase electric boilers

The choice of a boiler should be taken responsibly, since you need to take into account all the nuances regarding the electrical service of your home. Power lines are not always able to cope with the load that increases after the installation of the boiler. To avoid such problems, visit the power distribution department to which you belong and specify (or ask for a calculation) the maximum power that they can provide. When calculating the required kilowatts, do not forget about household electrical appliances in your home.

Scheme of the structure of a single-circuit wall-mounted electric boiler: 1 - electrical cabinet; 2 — control lamps; 3 - temperature controller; 4 - thermometer/pressure gauge; 5 - power switches; 6 - main switch; 7 - expansion tank; 8 - cable entry; 9 - safety valve; 10 - pump; 11 - return line of the boiler; 12 - plug connection of the control circuit; 13 - safety temperature limiter; 14 - control system fuse; 15 - air valve; 16 - lining of the boiler with thermal insulation; 17 - water pressure switch; 18 - heating rods; 19 - boiler supply line

The electric boiler is quite simple: it contains a heat exchanger and a control and adjustment unit. There are understaffed models that are equipped with an expansion tank, filter and pump.

For heating private houses, small-capacity electric boilers are used: single-phase and three-phase.

Scheme of cascade connection of an electric boiler

Single phase electric boiler

A single-phase boiler is considered to be powered by a 220 V network. It will not be difficult to connect it, since all houses are equipped with the necessary voltage. The power of the device varies from 6 to 12 kW. It is advisable to use such a boiler for an area not exceeding 100 m². Features of an electric boiler for heating a house (220 V):

works on the principle of a water heater (boiler, kettle);
a conventional network (220V) is sufficient for operation;
no special permission is required to install it.

Electric boiler for use in a private house

Three phase electric boiler

A three-phase boiler is more powerful than a single-phase one and is suitable for installation on an area of more than 100 m². In order for the network to withstand the load during the operation of the boiler, they are produced three-phase, that is, they are connected to a 380 V network. Features of a three-phase boiler:

powerful

It is necessary to take into account the heated area. For 10 m², 1 kW + 10-20% is required (for reserve);
operates from three phases (380 V), it is necessary to increase the power supply of current in the house;
it is necessary to obtain a special permit in the power supply to increase the power consumption and install the boiler;

Electric boiler for heating a private house, prices and types. Features of electric boilers for heating a private house. Calculation of power and connection of electric boilers.

the rated current that should be in each of the three phases varies from 6.1 to 110 A. This indicator affects the choice of the circuit breaker, wiring, its cross section (permissible indicators are indicated in the table below). Proper selection of the necessary elements will eliminate the possibility of fire.

Table "Values of cable cross-section and current of circuit breakers":

Boiler power (up to the specified value)

Current value of safety circuit breakers, for single-phase boilers

Current value of safety circuit breakers, for three-phase boilers

Cable cross section for single-phase boilers

Cable cross section for three-phase boilers

Types and features

You should start with the fact that such boilers have a lot of advantages.

Firstly, it is very convenient with its light weight, you do not have to spend a lot of time installing it, since it is quite simple.
Secondly, it does not take up much space. And, plus everything, it is a very inexpensive form of heating.
Another plus in its high security

If we take into account gas boilers, then they are still not so safe, there is a threat of explosion.
The electric boiler, on the other hand, is safe, does not emit odors and does not create noise. It is noteworthy that it has a temperature controller, that is, another plus is convenience and comfort.

As for efficiency: it depends on the type and model. There are so-called heating elements boilers. They work on the principle of a kettle, heating water. They stand out for a fairly low price. There are models that can be installed on the floor, there are also wall-mounted. But it has long been known that scale accumulates on teapots. TENs are no exception. As a result, electricity consumption is greatly increased.

Some electric batteries work on the principle of heating elements. Their heating covers a smaller area, but they are convenient with simple installation and beautiful design, they create an excellent warm climate. They do not heat the air itself, but the walls and interior items. But a warm floor from such batteries can no longer be carried out. Such electric batteries have different capacities, therefore, for greater efficiency, you need to calculate the quadrature of the house and, depending on this, choose what power the device should be placed in which room. Plus, it is better to choose liquid-free radiators, with the ability to regulate the heating temperature.

There are also automated electric batteries in which you can set the daily rate of electricity consumption, and they will work in the specified mode. For a private house, they are not so convenient to use.

There are also induction boilers.According to the principle of operation, they are comparable to heating elements, but their advantage lies in the fact that they do not have heating systems. They work according to the following principle: An induction coil is located above the boiler system, which heats the water with the help of current. Thus, the boiler becomes universal in that it rarely breaks - simply because there is actually nothing to break. Plus - in economy. It can work even at low voltage. And it also has a high level of security, so you can install it in any corner of a private house. The downside is its rather high price compared to the previous model. It is also a rather heavy construction, so they put such a boiler mainly on the floor

And, it is important to note that the principle of the model is based on magnetic inertia, so it is better not to put household appliances near

The third type is the electrode boiler. In it, the heating system is built on letting current through the entire coolant. It heats water much faster, which gives it the title of "most economical electric boiler". It is very compact, which allows you to install it without problems and save space. But it also has its drawbacks.

You should pay attention to the fact that there are many factors that affect energy savings using such a boiler. It is necessary to choose the right radiator for it

There is also a phenomenon called electrolysis, that is, over time, the power decreases, and the system is aired with rather poisonous gases. A rather complicated installation, so it is better to call a specialist. Well, in order to regulate the temperature, you will have to install additional equipment.

This type of boilers includes "scorpion". Its principle is just built on the efficiency of electricity. Having collected the necessary energy, the "scorpion" automatically turns off, and gets back into operation when the energy starts to fall. It can have both minimum and high power - this is also its advantage. In addition, the "scorpion" is silent and does not require any technical intervention. But such an instance costs accordingly. If we compare electric batteries with a scorpion-type boiler, then, in terms of savings, there is not much difference. Is it that with one boiler it is much easier and easier to monitor the temperature and power, and, accordingly, the funds spent on electricity. In addition, the "scorpion" has a high coefficient of conversion of energy into heat.

The main advantages and features of the model

Today, more and more consumers are purchasing an electric boiler for heating a private house. The prices for such equipment are reasonable. Such devices are discussed in the article. But if we consider the EKCO.R1 18 model in more detail, then we can say about it that it is distinguished by reliability, comfortable control and safety. The first factor is confirmed by the fact that the power unit consists of electronic semiconductor switching elements, which ensures silent and reliable operation. If the mark of the permissible pressure in the heating system is exceeded, the safety valve will work, so you can not worry about the safety of the equipment.

It is very convenient to control the boiler, the whole set is complemented by a regulator, with which you can set a certain temperature regime inside the premises. This economical electric heating boiler is designed to be connected to heating systems. The kit is completed with a circulation pump, a pressure gauge and a safety group. For even greater savings, you can reduce the power of the equipment by 2/3 of the nominal, while you will achieve a reduction in electricity consumption. Voltage fluctuations during the operation of the equipment are excluded, because the power is pumped as smoothly as possible.The heating block and heating elements are made of high-quality stainless steel, which prolongs the life of the equipment.

Device and principle of operation

Most electric boilers are built according to the heating element scheme. Inside there are heating elements connected to automation units that heat the coolant that transfers heat to the heating system. Power is supplied from single-phase and three-phase electrical networks. Due to their high efficiency, electric boilers almost completely convert electrical energy into thermal energy - their efficiency reaches 99%.

Double-circuit electric boilers are mini-boilers that provide your home with both heat and hot water.

Classic boilers have minimal dimensions and do not clutter up the space. But they do not solve the problem of lack of hot water - as we remember, centralized hot water supply is available only in cities, in multi-storey buildings. Owners of suburban housing have to heat water manually or use electric instantaneous and storage water heaters.

Double-circuit electric heating boilers are no more complicated than their single-circuit counterparts. But they know how to prepare hot water using a separate heat exchanger with a heating element. That is, inside we see two heating elements, an expansion tank, a safety group (or just a safety valve) and a circulation pump. The main heating element that feeds the heating circuit is switched on in accordance with the set temperature parameters. As for the heating element for the DHW circuit, it turns on only when the hot water tap is opened.

Other schemes for the internal arrangement of double-circuit heating boilers have not received much distribution due to the imperfect design and many shortcomings. For example, one of these schemes provides for the heating of water in the DHW circuit from the heating circuit.

Electric double-circuit boilers for heating a private house are presented in two types:

For wall mounting;
For floor mounting.

Floor-mounted models are the most powerful, so they are used to heat large households. But even in this case, they take up a minimum of space, differing in miniature. For a small home, a small wall-mounted electric combi boiler is best suited - some ranges include quite powerful wall-mounted models that can heat even large households.

Also on the market there are electric heating double-circuit energy-saving boilers. They are endowed with alternative heating elements. For example, there is a whole niche of electrode boilers, for example, Scorpion electric boilers. Being equipped with automation, they provide fast and economical heating of housing. As for induction boilers, they are distinguished by increased safety and a long service life.

An electrode boiler is a more efficient heating agent than boilers with a heating element.

In fact, the savings effect of energy-saving boilers is quite small, and most manufacturers' assurances about efficiency are most often a marketing ploy.

Direct and indirect heating systems

The type of heating, in which the main source for heating is electricity, is considered promising. But before you replace the existing heating, you need to understand the following:

Which option is right for your home?
what budget are you willing to invest in order to save in the future;
what power source of electricity is already in the house.

The choice of heating system will depend on these factors.

The method of heating a house with the help of electricity has gained great popularity.

Direct heating system

Direct heating is implemented by using electric heaters: convectors, underfloor heating. electric oil coolers.Using this option, there is no need to lay pipelines, install a boiler, or buy radiators. All devices are connected independently to the cabling. The temperature in each heater is regulated separately, which makes it possible to control the consumption of electricity.

Important! The use of direct heating is the most costly heating method. The advantages of such a system include savings on capital (equipment costs) and operating (repair) costs.

Scheme of a heating system with a direct radiator circuit, an underfloor heating mixing circuit and an indirect heating boiler

Indirect heating system

Cheap heating of the house with electricity is indirect heating. It consists in the fact that the classic water heating remains unchanged, the coal or gas boiler is simply replaced with an electric one. They come with the following types of heating:

inductive - an economical option, here heating is carried out due to high-frequency current (radio frequency waves);
electrode or ion exchange - this type of heating uses open electrodes, which are supplied with current (50 Hz);
direct - water is heated through a heating element. This type consumes much more energy, and also fails faster, however, the cost of such a boiler is several times less than that of a unit with inductive or electrode heating.

Comparison of the efficiency of boilers: electrode and shadow

The advantages of an electric boiler include:

small sizes;
low cost;
fast installation;
operational and environmental safety;
noiselessness.

Useful advice! Although the prices of induction boilers for heating a private house “bite”, the electricity consumption in such models is one of the most economical. To really feel the savings and see it on your energy bill, it is advisable to install a three-phase boiler.

Home heating project with electricity

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, so 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.

Cost of equipment

The cost depends on the power and the manufacturer.

Energy-saving electric boilers are the best option that allows you not only to heat the room with high quality, but also save resources.

A wide range of such units is on sale. Most modern models are equipped with built-in circulation pumps. This significantly increases the efficiency and effectiveness of devices.

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Boiler selection

Buying a boiler will not be difficult, but choosing the most suitable model for a particular case is already a crucial step. For example, few people think about the fact that the quality of the coolant can greatly recoup on efficiency indicators. And here we mean not only the effect of the heat produced, but also the safety of operation. Another important point is grounding, because the device is electrical. That is why experts always strongly recommend calling the masters for the installation of boiler equipment. Firstly, this will allow you to be sure of the quality of the installation, and secondly, if something fails, then there is someone to blame.

Now, as for the purchase of the electric boiler itself. In order to rationally invest money and then not regret the purchase, you should think about the following points:

Boiler size and location. Despite the fact that the device does not require constant monitoring in operation, it must be freely accessible. In general, a separate room is allocated for such equipment - an attic, a basement, a closet, etc.This is very convenient, because the owner should be able to look at the boiler at any time, and, if necessary, clean or repair it. But if this is not possible, then any other corner can be selected, the main thing is that the boiler equipment fits there.
external parameters. Perhaps this point is important for those who, due to circumstances, cannot “hide” the device from prying eyes. Modern manufacturers have tried their best to create their products ergonomic and attractive. Well, as for the size, then everyone decides for himself how much free space he has for the boiler.

Performance. Many, when purchasing equipment, first of all look at the efficiency and safety level. Modern electric boilers have programs that automatically manage the safety of energy. That is, a person sets the desired temperature regime (and you can set your own parameter for each individual room), and the boiler already independently maintains the set figures. This helps to avoid such a negative phenomenon as heating innervation. That is why electric energy-saving boilers have an efficiency of almost 100%.
Connection. The single-phase power supply line is designed for a unit up to 6 kW. With new wiring, you can purchase products up to 12 kW, but three-phase current will be required for more powerful electric heating boilers (at 380V). Although there are models that are designed for voltages of 220 and 380V.
Functionality. Such models of boilers are characterized by a high heating rate of the coolant. In addition, many manufacturers are trying to keep up with the times, which is why their products receive more and more functions, for example, a timer that will start the boiler at a certain moment. But you should immediately be prepared for the fact that each "additive" will raise the cost of the product.
Guarantees. They have not yet come up with a technique that would serve forever. The same goes for boilers. Therefore, having settled on the model you like, you should ask the seller about the guarantees from the manufacturer. The buyer must know where to go in case of a boiler breakdown, and how much it can cost him. Usually, if the product is purchased in a store, then the warranty card is valid for 1 year + 2-3 years from the manufacturer itself. If the seller cannot clearly answer this question, then there are two options: a low-skilled employee or a fake in the window.

Brand. This factor sometimes takes half the cost of the boiler. For example, if it is a foreign company, then the manufacturer's fame and the finances spent on the delivery of boilers can be invested in the price. And here is a very interesting point: many foreign companies have representatives in other countries, that is, products can be assembled within borders. As a result, domestic assembly should cost a little less than overseas. But as practice shows, rarely do stores mention this. Today, some of the most popular brands of electric boilers are Galan, Savitir and Energolux.

Incidentally, all of the above factors affect the price category of the boiler. For example, the more famous the manufacturer, the higher the price will be. After all, the consumer has to give part of the money only for the promoted brand.

Therefore, you can not overpay extra money and pay attention to devices in a cheaper price segment.

Benefits of energy-saving heating systems

Leading experts consider energy-saving heating systems for a private house to be the best solution for many owners. Boilers not only have high performance, high quality and inexpensive cost, but also allow you to significantly save resources

And in the context of a constant increase in electricity prices, this property of the device is very important.

Among other advantages of energy-saving boilers are the following:

ease of installation, installation of the boiler is possible at any facility with electrification;
ease of operation;
attractive design;
the possibility of application not only in a private building, but also in a city apartment;
efficiency;
environmental Safety;
there is no need for a special room for equipment placement;
silent operation.

It should be noted that an energy-saving home heating system saves up to 30% of resources when compared with an installation with heating elements.