Electric boilers in a private house. How to choose electric heating boilers: boiler type, power and other parameters. Electrode heating boilers

The device and principle of operation of the EPV boiler

Most owners of private houses make a choice in favor of heating equipment with a flow-through water heater. Such devices make it possible to obtain heated water. But at the same time, we must not forget that if the water intake is large, then the electricity costs will be appropriate.

The best option is a boiler: it allows you to save and store heated water in case the system fails. And at the same time much less power is spent.

Read about how to properly arrange and conduct - all the subtleties and features of communications are described in detail.

What is the best way to insulate a house from a bar outside? The answer to the question can be found.

The procedure and nuances of do-it-yourself roof insulation of a house are described in the article at:

Savings methods

The main question that torments the owners of electric heating boilers is how to save electricity in order to reduce the cost of paying heating bills. There are several recommendations from people who use such boilers and manufacturers of heating equipment.

In the event that different tariffs are set in your region (at night - one, during the day - another), you should try to save on this moment. For this purpose, heat accumulators are installed and included in the piping of the heater. At night, the electricity tariff is lower, the electric unit will heat a large container of water, and during the day it will be used to heat the home.

If it's not too cold outside, you can use air conditioners for heating. The air conditioner converts 1 kW of electrical energy into 5 kW of heat: it takes heat from the outside (this is due to the difference in power).

Such an air conditioner is economically feasible to use for heating premises in southern latitudes with a mild climate. In order to heat an 80 sq. m, located, for example, in Sochi, three air conditioners are enough; the power of each should be 3 kW. This heating option is the most profitable for homeowners in the southern area.

Knowledge of the features of electric boilers and the principles of their operation will help you choose the right heating equipment.

Video

Below we suggest watching a video review on how to choose the right electric boiler for heating a private house:

Today, the problem of selecting a heating system for a private house is becoming more acute and urgent. Electric boilers for heating a private house in recent times begin to enjoy great popularity. Many reasons contribute to this, such as, for example, a low level of security or the absence of a gas pipeline near the house. Modern technologies do not stand still, so today you can find a great variety of various heating electrical appliances on sale. Thanks to a wide range, you can choose the most suitable device model, with which you can create the most optimal temperature conditions in the house.

Not only the microclimate in the house depends on the choice of the heater, but also the convenience of its use, and the reliability of the entire system.

Types of heating electric boilers

An electric boiler for heating a private house consists of several main components, such as:

• Housing. All its constituent parts are collected here.
• Heat exchanger. It contains a heating component and a coolant tank.
• Regulation, control and monitoring units.

Modern electric boilers for home heating, in addition to the main components, are also equipped with various sensors and valves, as well as a built-in circulation pump.

Thanks to modern electric boilers for home heating, you can not only heat water, but also provide a safe and economical operating mode. Regardless of the manufacturer, all units work according to the same principle of operation. The heating component, which is located in the heat exchanger, converts electrical energy into heat energy. Due to it, the coolant is heated, which is transferred to the heating radiators through pipes.

Electric boilers for heating a house can be electrode, induction and with heating elements. The latter have recently become increasingly popular. Regardless of the manufacturer, domestic or imported, such boilers practically do not differ in design features. The difference can only be observed in terms of additional functions or security level.

Electric boilers for home heating can be divided according to the operating voltage category. Thus, there are the following types of boilers:

• Electric boilers for home heating 220v;
• From a voltage of 380V. Typically, such boilers are three-phase and have a minimum power of 12 kW.
• Mixed boilers.

Also, boilers may differ in such a criterion as the installation method. Boilers can be floor-standing or wall-mounted.

Pros and cons of eclectic boilers

Electric heating boilers for private houses have both their own advantages and disadvantages. Among their advantages are the following:

• Electric boilers do not need a time-consuming and laborious installation.
• There is no need to connect a chimney or pipe to an electric boiler. All that is required is simply to connect it to the network.
• Compared to a gas boiler, there is no need to look for a separate room for an electric boiler.

• Compared to gas boilers, 220V electric boilers for heating houses are lighter and not so large. Also, during the operation of the boiler, it is not necessary to carry out special measures and additional costs are not expected.
• An electric boiler is the safest from an environmental point of view, since no carbon monoxide is emitted during its operation.
• An electric boiler has a fairly high efficiency rate, from 95 to 98%.

In order to connect an electric boiler to the heating system, you need to choose the wiring with the most suitable cross-section. This will not only allow the system to run smoothly, but also minimize the risk of short circuits.

Electric boilers have their own disadvantages, which are shown by reviews:

• In order to connect an electric boiler, it is necessary to calculate as accurately as possible how much electrical cable is required.
• To provide power to the device, a separate line must be drawn from the shield.
• Electricity is a more expensive source of energy than gas, for example.

When buying an electric boiler, various factors can influence its choice. From conditions such as the type of heating system, the area of \u200b\u200bthe room that needs to be heated, the level of efficiency of heating radiators and batteries, it depends on how many kilowatts per month will be required to heat a house. Boilers are different in power, which means that their electricity consumption will be different. For example, a wall-mounted electric boiler for heating a house is more compact than a floor-standing one, and it will consume power from 2.5 kW per hour. Boilers with a higher power can consume up to 20 kW per hour.

With a wall-mounted electric boiler, you can heat a room or house with an area of \u200b\u200bno more than 25 square meters. meters. In rooms with a large area, it makes no sense to connect it, since it will not be effective. It is also impractical to connect a boiler with high power for small rooms.

In order for the house to be heated not only in the most optimal way, but also without overpaying extra money, you need to measure the power of the electric boiler for heating the house in parallel with the area of \u200b\u200bthe house.

There is a formula to be guided by when choosing an electric boiler. The power of the appliance should be about 10 times lower than the area of \u200b\u200bthe house. For example, if the area of \u200b\u200bthe house is about 100 sq. meters, you will need an electric boiler with a capacity of 10 kW. These figures are approximate, as there are other factors that can affect the efficiency of the heating system. These include the presence of thermal insulation, the location of the wind rose and others. From these factors, the required power of the heating boiler can be slightly reduced.

A good solution would be to install a multi-tariff meter. The boiler can be turned on at a time when the electricity tariff is at its minimum.

The cost of electric boilers for the heating system

A small device with a minimum number of parameters and functions will cost about 2,000 rubles. Such a boiler will be of the wall type and will be able to heat a small private or country house.

A powerful device with a large number of functions and capable of heating a large mansion or cottage will cost 50,000 rubles or more.

The manufacturer's brand will not necessarily affect the price of an electric boiler, its parameters and equipment will be more important. The wider range that the devices possess makes them a higher price point.

Also, the cost of an electric boiler can be affected by the presence of another circuit. Such a boiler can heat not only the coolant, but also the water in the water supply system. Such a boiler would be an excellent solution for those private houses that do not have access to central hot water supply. Although it will cost a little more, it will be more useful and more effective.

The boiler can be equipped with a component such as a magnesium anode. It is necessary in order to soften water if it has high hardness values. Also, electric boilers for heating a private house can be equipped with various sensors, such as: a temperature sensor, a pressure sensor, a liquid level control sensor and others.

A modern boiler with a large number of functions will make the heating of a private house with an electric boiler practically autonomous. It is enough to set the required operating parameters just once and the program will maintain the set temperature regime. In this case, in the process of heating the house, a person will practically not take part.

A striking example of such a boiler is the Protherm Skat 9K device, which has a power of 9 kW and is capable of heating a house with an area of \u200b\u200b80-90 sq. meters. Efficiency indicator this device is 99.5%. Such a boiler is in rather high demand among the owners of private or country houses.

Another striking representative, which falls into approximately the same price category, is the boiler from the German manufacturer Vaillant eloBLOCK 9KVR14. It has similar power parameters and is an efficient and reliable heating device.

Among domestic brands, such models of electric boilers as Evan and RUSNIT are popular.

The correct choice of a boiler can be made only when its parameters are selected based on specific factors, such as thermal insulation, house area and calculation of an electric boiler for heating a house.

Electric heating boilers are in stable demand among owners of private houses, since it is not advisable to use powerful heating equipment in all rooms. And also quite often any other sources besides electricity are simply absent - and then it is much easier to provide the cottage with electricity than to supply gas to it. You can also choose a solid fuel boiler, but solid fuel requires both storage and delivery space, while electricity is always at hand.

You can buy an electric boiler "Proterm" or any other popular and reliable manufacturer in our company. Here you will find many types of heating equipment, as well as quality service, a full guarantee for all goods and fast delivery.

Advantages and disadvantages of electric boilers

The main advantages of electric heating boilers are the following factors:

• relative cheapness and easy access to an energy source;
• a minimum of mechanical parts, due to which the maintenance of such a boiler is easier than a gas or any other;
• the possibility of automatic operation, which allows you to turn on the heating at any time convenient for you according to a given program;
• lack of noise during operation. An important feature for a residential building, as well as compactness and low weight, which allows you to install electric boilers almost anywhere;
• no harmful emissions into the atmosphere and the need for additional installation of the chimney.

Among the disadvantages of electric heating boilers are low power. For heating rooms over 300 sq. m of such equipment is not enough. Another disadvantage is low efficiency, due to which they consume quite a lot of electricity.

Features of electric boilers

Due to the ability to heat relatively small areas, electric heating boilers are used in apartments, as well as private houses and medium-sized industrial premises. Often, such equipment is installed as additional to the main one (gas or solid fuel). Thus, the possibility of shutting down the heating system due to the temporary lack of other types of fuel, except for electricity, is prevented.

The main requirement when using an electric boiler Galan, Vaillant and other brands is the technical possibility of installing equipment of similar power in the room, that is, it is necessary to provide for the presence of an appropriate power supply system in advance.

Electricity is the most common type of energy carrier, which predetermined its mass use for heating, despite its higher cost than gas. The task of heating a private house can be realized with the help of an electric boiler, but it is necessary to choose it correctly.

Electric boiler for heating a private house: the main advantages

An electric boiler for heating is a device that converts electricity into thermal energy and circulates the coolant in a pipeline heating system. The use of such devices has a number of advantages over their counterparts that run on solid fuel or gas:

• ease of use (switching on, off and adjusting the temperature of the coolant is carried out by pressing several buttons);
• absolute environmental friendliness (during operation they do not produce smoke, ash or noise);
• the ability to install in houses of any size and architecture;
• low cost;
• minimal fire hazard;
• do not require the connection of additional lines and pipelines to the house;
• full automation of heating.

In addition, electric boilers are characterized by a fairly high efficiency: depending on the model, the efficiency of such devices varies within 95-98%.

The main types of electric boilers and their characteristics

Electric boilers differ from each other in the following ways:

• by the mechanism of heating the coolant;
• by the number of contours;
• by power;
• at the place of installation.

Wall or floor

First of all, when choosing an electric boiler, you should pay attention to the place of its installation, whether it is suitable in size for the room, will it hang on the wall or stand on the floor. Wall mounted boilers lighter and more compact, however, to provide heat to large houses of 2-3 floors, it is better to give preference to floor-standing heat generators. In addition, many units are double-circuit and immediately with built-in boiler systems, this is very convenient, but this affects both the dimensions of the device and its weight.

Selection by power parameter

The power of such units directly depends on the boiler power supply circuit, it can be of two types - single-phase or three-phase. In the first case, the heat generator operates from a common network (220V), and its power does not exceed 5 kW. Three-phase ones operate from a power voltage (380V), that is, they require an additional cable of a larger cross-section, in such models, the power of heat generators is 15 kW or more.

By the number of contours

Electric boilers are divided into single-circuit and double-circuit. A heat generator of the first type can only heat private house, providing hot coolant to the pipeline heating system. And the second one is connected to two lines and also provides hot water for domestic needs.

Choosing an electric boiler for heating based on the heating principle

According to the mechanism of heating the coolant, electric boilers for heating a private house are divided into three main types:

• electrode;
• tenovye;
• induction.

This parameter seems to be the most interesting, therefore, we will analyze each type of heat generators in more detail.

The circuit for heating the coolant in an electrode boiler is not so easy to understand: the fact is that the electrodes themselves do not heat up during operation - they only transfer electrical energy to the water. Due to the work of electricity, water is divided into negative and positively charged ions, which move along their own electrode. The movement of ions leads to intensive heating of the coolant. The unpleasant moment of this scheme is that over time, salt precipitates on the electrodes, which reduces the efficiency of the device.

The negative features of such devices also include the following aspects:

• requires preparation before starting (works with water with a certain specific resistance value);
• it is necessary to control the level of the coolant in the system (an insufficient level can lead to boiling);
• as the electrodes fail, they will have to be replaced with new ones;
• it is impossible to use antifreeze liquid as a heat carrier.

Nevertheless, such a model of an electric heating boiler differs in a number of advantages, which include:

• low price;
• absolute safety;
• miniature sizes;
• gradual reaching the specified power.

The algorithm of operation of heating devices is much easier to understand, because the mechanism of its operation is somewhat similar to an ordinary electric kettle. Heating water comes from heating elements - hollow metal tubes that glow when electricity passes through them.

Heating units have become widespread due to their simplicity of design, miniature dimensions and unlimited customization options.

In such heat generators, the coolant temperature can be controlled in two ways:

1. First, the sensor takes the temperature of the coolant, and depending on this indicator, the device increases or decreases the heating power.
2. The second - the temperature sensor takes the air temperature in the room, and depending on its value, the device regulates the heating to the specified figure. In the second case, the temperature sensor will have to be taken out separately from the boiler, but such an arrangement will allow for more accurate regulation of the room temperature and reduce energy costs.

A significant disadvantage of a heating element boiler is the need to periodically replace the heating element (heating element) and clean it. The fact is that when heated, salts are deposited on the heating element, which are in the coolant. These salts impede heat transfer and significantly reduce the efficiency of the heat generator.

The operation algorithm of an induction boiler is based on the laws of electromagnetic induction: water circulates through tubes made of ferrimagnetic material. This piping is part of a secondary winding or core. Tubes of ferrimagnetic alloys, heated under the influence of an electromagnetic field, transfer heat to the water circulating through them.

An induction electric heating boiler has the following advantages:

• high level of security;
• high reliability (due to the absence of detachable elements, leakage is completely excluded);
• the ability to use any type of coolant.

At the same time, such a boiler model also has disadvantages, of which there are only two - too large dimensions and an extremely high price.

How profitable are electric boilers for a private house

It is impossible to answer this question with absolute precision. The fact is that this question has several aspects. Of course, the price of gas as an energy source is much lower than that of electricity. But do not forget that for gas heating it is necessary to equip an expensive chimney and piping, and an electric boiler for heating a house will not require these costs.

The area of \u200b\u200bthe heated housing and the degree of its insulation are of great importance. If you heat a small and well-insulated house with an electric boiler, the costs are unlikely to be too burdensome. While heating a large house can be quite expensive, since the energy carrier will be needed many times more. Then gas becomes more cost-effective than electricity, but if there is no gas supply pipeline and the installation of a gas tank is impossible, this is the only option.

In modern stores, a huge assortment of electrical devices of domestic and foreign production is presented, so you can choose absolutely any unit according to the principle of heating, power and the coolant used.

Outcome

To choose the most profitable heat generator model, you should not rely only on your intuition. Purchase electrical models of heating equipment in specialized stores, where professional consultants can determine optimal modelthat suits your needs. In order not to overpay, it is also worth calculating in advance the required boiler power for your home.

Using information about electric boilers and the recommendations of our specialists, you can choose as accurately as possible a model of an electric boiler for a private house.

The choice of an electric boiler is not difficult. You just need to know how to select the power of the equipment, the type of heating element and, no less important, a reliable company. Next, we will consider all the main nuances so that you know how to choose an electric boiler for heating a house, a summer residence or even an apartment. Which electric boiler is better, you can determine only yourself, based on the data provided and the distinctive features of the compared types of heaters.

Heater power

The first and most important selection criterion is the power of the equipment. This parameter is determined depending on the area of \u200b\u200ba private house or apartment. Usually, the following formula is used in the calculations:

W \u003d (40 * Vroom + Qwindow + Qdv) * k ,

• W is the estimated power of the electric boiler;
• 40 - the average value of the required equipment power per 1 m 3 of the room, W;
• Vroom - the total volume of heated space (of all rooms in a house or apartment), calculated as the total area of \u200b\u200bhousing multiplied by the height of the ceilings;
• Qwindow - heat loss on windows (100 W each);
• Qдв - heat loss on the door (200 W for each);
• k - coefficient of the location of the region (southern strip - 0.7-0.9; European and central parts - 1.2-1.4; northern and eastern - 1.8-2).

This formula is suitable if you need to choose an electric boiler for heating an apartment. As for a private house or summer house, then in the calculations you need to multiply the total value by 1.5. The additional factor takes into account the heat loss through the ceiling and floor.

Heating element type

The second, no less important criterion for choosing an electric boiler is by the method of heating water for heating. Today there are heating elements, induction and electrode boilers.

The former are most often found on display cases. They can be both floor-standing and wall-mounted (mounted). Equipment with a heating element inside is the cheapest and can be used both in private houses and in apartments with a voltage of 220v or 380v. The disadvantage of this type of electric boilers is the formation of scale on the tube heaters. In addition, the power of one electric boiler may not be enough for two-storey house, and it is not always possible to install several heaters due to their size.

In this regard, the choice of an induction boiler is a more reasonable decision. Due to their small dimensions (seen in the photo below), such heaters can be connected to one heating system, which will increase its power to the required value. The only obstacle is the higher cost of the equipment. An induction electric boiler can be chosen for heating a summer cottage of an impressive area. A very important advantage of induction appliances is that they are the most economical, which is especially important for spacious houses.

Well, the last type of heater is electrode. Such devices are considered the safest, but at the same time, the most whimsical to the coolant - water. At the cost, you may not feel much difference, but still most often the choice of an electric boiler with an ionic heating method is carried out for private houses and summer cottages.

Video instruction on how to choose an electric boiler and which one is better according to the main indicators:

Review from a specialist

Top firms

A lot will depend on the correct choice of the brand of the device - the durability of the heating system, the quality of work, safety and, of course, the cost of the electric boiler. Now we will tell you which electric boiler company is better to choose in 2017, so as not to overpay and be calm for the purchase.

Today, Bosch, Vaillant and Dakon are considered the best boiler manufacturers. A little cheaper, but still good quality equipment from Kospel and Protherm. The domestic leader in the production of wall-mounted electric boilers is the RusNit company, which specializes in the production of both household and industrial models.

From my own experience I would like to say that 4 years ago I was advised to choose a two-circuit electric boiler from Protherm. During this time, the device never failed, and at the same time it was one of the cheapest in the store for the price, so my review - "Proterm" is the best manufacturer of household heating units.

Additional features

If you decide to choose a good electric boiler for heating a private house or apartment, then pay attention to the presence of several very important functions:

1. The presence of a multifunctional control system, which is clearly displayed on the display. Your unit must be equipped with temperature and pressure sensors, as well as the ability to smoothly adjust the water temperature. If the pressure in the system drops, you will be able to notice this in a timely manner and correct the situation as soon as possible.
2. Possibility of automatic power selection for heating operation. To save energy, the boiler will be able to independently change the heating power during operation.
3. The possibility of using an electric boiler for hot water supply at home. Most modern models of equipment can be used not only as heating equipment, but also as a boiler. It is very convenient, but the consumption of electricity, as you understand, increases.

Consideration of the main types of devices

These are the parameters for the independent selection of electric boilers. We hope that now you know how to choose the right electric boiler for heating a house, apartment or summer cottage, and, no less important, which companies are better to give preference to in 2017!

Also read:

We recommend reading

Windows instructions

Cough after and during meals: reasons for what to do

Windows instructions

Useful properties and contraindications for the use of barberry

Android instructions

A wen appeared on the eyelid: causes, negative consequences and methods of treatment

Windows instructions

Total protein: what is it and its norm in a blood test

Android instructions

Uterine cancer: first signs and symptoms, early treatment

Windows instructions

Causes of coughing while eating