Selection Guide
Why do people choose these devices? Obviously, it's all about the advantages over gas and wood counterparts.
Advantages of an electric heating system:
- There is no need to install a chimney to remove combustion products, to connect additional ventilation. Accordingly, there are no restrictions on installation and coordination with housing and communal services.
- Ease of control and programming modes. Devices for heating allow you to set the required temperature of the coolant or air on an external sensor.
- Opportunity to use a differentiated tariff scale. That is, during the day the cost of electricity is more expensive, at night, when the peak of consumption passes, it is cheaper by 40-60%. If thermal accumulators are purchased as a set for the boiler, it will save money by storing heat at night and spending it during the day.
- Safety. The risk of system boiling and explosion is reduced to zero.
Heating a house with an electric boiler has the following disadvantages:
- High cost of electricity.
- Constant power surges disable automation. As a result, rapid defrosting and damage to the entire heating structure.
We list the main parameters and technical characteristics of boilers for heating systems, on which the choice depends:
- Manufacturer. It is better to consider products of famous brands. Concerns have an extensive network of service centers that will provide fast and high-quality repairs.
- Power. Before you go to the store, do not forget to correctly calculate it in accordance with the level of heat loss at home.
- Efficiency - not less than 95%. Electricity is the most expensive fuel, so performance must be maximized.
- Security group. Mandatory: limiting the temperature of the thermal carrier (up to +85 ºC), protection against overheating, dry running, pressure sensors and others.
- The number of contours. Single-circuit boilers should be used strictly for their intended purpose, and for hot water supply, purchase separate storage boilers or indirect heating.
- Optional equipment. A heat accumulator, a stabilizer must be included in the piping of a high-power boiler, and if electricity is often cut off in the area, then generators running on diesel or gasoline fuel. The risk of failure of the heating system is reduced to zero.
To paraphrase well-known authors, we can say that electric boilers are not a luxury, but a means of heating in the harsh Russian winter.
Video instruction for installation of an economical boiler Galan
The undeniable advantages of such a boiler is fast heating. high fire safety, no connectors. due to which leakage often occurs. At the same time, the boiler works even at low power, which other types of boilers cannot. Unlike conventional heating elements, scale cannot be deposited on such boilers.
And what is very important, the performance of such a boiler does not decrease over time. And their service life reaches 25 years or more.
The organization of heating by means of a gas boiler is considered the most economical and convenient. However, for people living in areas where there is no central gas pipeline, other options have to be found. In particular, a solid fuel or electric boiler, and more and more people are leaning towards the latter. This is due to the fact that in the first case it is necessary to purchase fuel and be able to properly heat, because with a small amount of firewood or a bad angle, this is a real science.
The only disadvantage of electric heating is dependence on energy supply and increased power, which also causes increased costs.Therefore, the question arises, which is the most economical electric heating boiler? The household category of products includes models with a capacity of 3-60 kW, although in most cases it is already impractical to install boilers with more than 10 kW due to a possible overload of the network. Thinking about how to choose the most economical electric heating boiler, we can say that a power of 5 kW is enough to heat an area of 80 squares, i.e. for a large three-room apartment or an average house.
For people who have the opportunity to choose between several ways of organizing heating, the question involuntarily arises, which boiler is more economical - gas or electric? It can be unequivocally said, estimating the current prices for energy resources, that gas heating will be much more economical. If only an electric option is considered, then it is necessary to highlight several ways to increase its efficiency:
• purchase a modern, more expensive model with a built-in thermostat, which allows you not to "overheat" the room when the weather conditions improve;
• ensure high-quality thermal insulation of the house by making an outer coat, installing dense sealants on windows and doors, etc.;
• install a two-zone meter that counts electricity consumed at night at a rate 5 times less;
• organize a system with forced circulation of the coolant.
What gives an electrode boiler
The very idea of an electrode boiler is that. to refuse the use of TEN. If you now look at the diagram of the electrode boiler, you will see that the electric current passes through the coolant from the electrode, which is energized to the boiler body, which is also a conductor.
Of course, any competent electrician will say that there is no movement in reality.
But it doesn't matter to us right now.
And what is important is that the losses in this case are minimized. And thanks to this, the electrode boiler has an efficiency of up to 97 percent
Where do these same 3 percent of 100 go, I wrote to you a little higher.
It is important for us that, other things being equal, the electrode boiler will have slightly less electricity consumption than a classic boiler with heating elements. This time
Secondly, the process of heating the coolant itself is faster, because during the operation of the electrode boiler, the entire volume of water is heated at once, and not just the layer next to the surface of the heating element.
But in such a scheme there are not only pluses, but also minuses. You can read about them below, in the "Reviews" section.
Alternative sources of electrical heating
Sometimes for peak loads it is advisable not to increase the power of the boiler, but to install additional sources of electrical heating. They may be:
Underfloor heating from heating cable or infrared mats for kitchens, bathrooms and other areas of a private house.
Infrared heaters installed under the ceiling and heating horizontal surfaces: floors, furniture. This creates a feeling of warmth even at low temperatures in the house.
Convectors. They can be installed in areas of the house that are used periodically: an office, a library, a gym, and turn on as needed.
Thermal curtains installed above the entrance or balcony door and allowing you to cut off the wave of cold air.
When installing additional heating sources, the nominal temperature on the boiler control panel can be set 3-5 degrees lower, which will ultimately lead to savings.
Heating with electricity is not cheap, but it is reliable and fully controlled by a pre-set program. The choice of a suitable boiler and its subsequent reasonable use will allow you to enjoy the heat in a private house at a relatively low cost.
https://youtube.com/watch?v=2M_qMJoszUs
Electric boilers are useful in areas deprived of gas supply. They are light in weight, compact in size, and do not harm the environment.Such devices have a number of positive qualities:
- They are arranged quite simply, provide a minimum of heat loss and a high efficiency during the heating season - about 99.5%;
- There is no need to place the equipment in a separate room of the building;
- The energy carrier does not need to be stored;
- Absolutely safe during operation: in the event of a water leak, the boiler simply turns off;
- It is not required to equip a chimney, since no substances are released into the environment during operation.
When compiling the rating of the best electric boilers designed for heating a private house, we took into account a large number of different kinds of factors - the manufacturer, performance, the ability to provide the house with hot water, and not just heating, efficiency
In addition, when developing this top 10 rating, we took into account user reviews. So we can say with confidence that only the most popular and functional models were included in the review, which, moreover, are quite affordable.
When is an electric boiler the best solution?
Gas is not available to everyone: some settlements are located too far from the highway, and sometimes installing a gas boiler is not at all appropriate. For example, for a country house that is heated several times during the winter, it makes no sense to purchase an expensive set of gas equipment.
Solid fuel boilers also have a number of disadvantages: it is necessary to harvest and store fuel, and most solid fuel units cannot work for a long time, more than 4-5 hours, on one load of fuel. In addition, they are inertial and do not allow precise temperature control. In this case, the electric boiler is able to solve the heating problem quickly, reliably and at no extra cost.
Advantages of electric boilers for a private house:
- easy to install, connect and maintain;
- have a high level of automation;
- allow you to accurately set the desired temperature;
- work silently;
- no need to connect to a chimney;
- do not require a separate room, most household models are mounted on the wall with their own hands.
Flaws:
- require connection to the shield with a separate cable;
- boilers with a power of more than 9 kW are produced only for a three-phase voltage of 380 V;
- due to high electricity tariffs, heating costs several times more.
Number of circuits
The device of a double-circuit boiler.
When installing a heating boiler, you can provide the house with an uninterrupted supply of hot water, but the equipment for this must be chosen especially carefully. In this case, it is necessary to make a choice between devices with one or two circuits. Single-circuit devices allow you to organize only a heating system, since they are not designed to heat water that is supplied to the user in the taps in the kitchen or in the bathroom. If there is a need for this, it is necessary to choose double-circuit gas boilers. There is a separate classification here: wall-mounted, floor-mounted, flow-through gas boilers and with large storage tanks are produced.
Which boiler should you choose? You must first determine what functions are required from the equipment. For example, single-circuit devices are able to supply coolant for underfloor heating.
Flow type equipment is used when almost instantaneous heating of water is required, while they pump 10-15 liters through themselves in a minute, heating this volume to the set temperature.
Heating double-circuit boilers have additional tanks with a certain capacity. They have a volume of already hot water, but when it is supplied, it cannot always be hot right away, and this leads to fluid consumption. Therefore, the choice must be made based on how economical and effective the equipment is, whether it fully meets all the requirements of operation.
Which company's electric heating boiler is better
1. Good inexpensive electric boiler RusNIT 209M
Photo: www.teplosila.ru
Rating: 9.9 out of 10.
Average price: 16279 rubles.
A compact, lightweight electric boiler of domestic production can be called the best among inexpensive ones. The total power of the boiler is small, 9 kW, but this is enough to heat rooms with a total area of 70-90 m2 (residential area of a medium-sized house or cottage, country house). At the same time, the quality and set of functions are no worse than those of expensive imported models: the operation is fully automated, you can adjust all the main indicators (power in three steps, air temperature, coolant temperature).
From the reviews of the RusNIT 209M electric boiler:
“I have had an electric RusNIT in my dacha for 2 years now. Haven't let me down yet. The house is still warming up perfectly. It is good in it that when turned on, the system does not immediately load, it distributes the load evenly over each phase. And this means that, including other devices, you can not be afraid that they will burn out.
It is only important that the boiler is installed by specialists, and service maintenance must be carried out on time.”
- low price
- easy installation
- smooth power adjustment
- precise temperature setting (+/- 0.5 °C)
- air heating within 5-30 °С
- overheat protection
- coolant presence sensor
- body is splash resistant.
Cons of the model:
not suitable for a large house.
2. The best electric boiler-mini-boiler house EVAN Warmos QX-18
Photo: warmos.ru
Rating: 9.8 out of 10.
Average price: 31400 r.
The best among powerful Russian-made electric boilers. It can be safely called a mini-boiler room: heating elements (material - stainless steel), a membrane expansion tank, a circulation pump are assembled in one housing - all this saves space during installation and reduces time. The LCD display is located at the bottom of the case. The convenient control panel is hidden behind a special door. The microprocessor controls the operation, the control is fully automatic, but you can switch the device to manual mode and adjust all the parameters to your liking and needs. It works stably with voltage drops, but still it is better to connect the boiler through a stabilizer. Universal. Suitable for heating residential premises (houses, apartments) and industrial facilities (warehouses, shops, etc.)
From reviews of the electric boiler EVAN Warmos QX-18:
“I bought Varmos, put it in the country parallel to the old solid fuel. Installation is elementary. It has been working for 5 years, no problems"
- runs quietly
- built-in expansion tank 12 l
- 3 power settings
- microprocessor control
- smooth power adjustment
- control panel at the bottom of the case
- thermostat (air temperature adjustment for 7 days)
- manual adjustment available
- built-in pump
- overheat protection, short circuit protection
- coolant level sensor
- pressure meter
- emergency condition indication (light, sound).
Cons of the model:
- bulky and heavy
- weak point - capacitor
- you need to install a voltage stabilizer
When choosing heating equipment today it is easy to get confused, as there is a very wide selection of models on the market. There are both simple boilers for an apartment, and more sophisticated equipment designed for installation in a large country house or in the country. All of them are different in terms of power, additional features, connection technologies.
In order not to make a mistake with the choice, you need to pay attention to the rating, which clearly demonstrates which equipment is optimal in certain conditions.
To choose the right boiler, you need to pay attention to the rating, which demonstrates all the advantages or disadvantages of the equipment. The choice of a gas boiler will be much easier if you know exactly what functions are needed, what design power can satisfy all heating and hot water needs.
The rating will help you understand all the intricacies of such installations.
The choice of a gas boiler will be much easier if you know exactly what functions are needed, what design power can satisfy all heating and hot water needs.The rating will help to understand all the intricacies of such installations.
Availability of automation
A boiler for heating a private house should have more complex automation.
The choice of boilers is a responsible matter, it is necessary to pay attention to the presence of automation. It should be noted that any type of equipment is designed to solve a certain number of tasks, its functionality will also be different.
For a city apartment, it is enough to heat the water to the required temperature, some models can supply coolant to the radiators. Complex automation is simply not needed here, since the functions of the boiler are rather limited. For such wall-mounted boilers, it is enough to have auto-ignition and draft sensors. This is not enough for a country house; to ensure high functionality and safety, it is necessary to have more advanced automation.
The rating of boilers is as follows:
Boilers with automation, which, depending on weather conditions, allows you to adjust the level of heating, are in the first place. Here sensors of external temperature, indicators of temperature in the house are installed. Such a system makes it possible to economically consume gas, since when the temperature rises in the street and in the house, its supply simply decreases or stops. The boiler turns on only when necessary, and this makes its work very efficient.
Often in spring and autumn, a situation arises when excessive overheating of the premises appears. This happens due to the fact that the coolant is supplied to the heating system at a constant temperature, and this is not always necessary.
Therefore, you should pay attention to gas boilers that have special programmable devices that allow you to adjust the heating according to the schedule. Automation includes many monitoring sensors, which, according to pre-set data, provide control
It is advisable to use such gas boilers not only for a country house, but also for a city apartment. Compiling the rating of boilers, it is necessary to send such boilers to the first places as the most efficient and able to create the most comfortable living conditions. But such devices are much more expensive than others, and this is also worth considering.
When making a choice among heating boilers, one must also take into account the presence of such automation, which allows hourly programming. Such automation gives a real opportunity to make settings literally for each day of the week separately. At the same time, there will be a decrease at night, and an increase during the day. This saves a lot of gas
Such gas boilers are not only efficient, but also economical, and this is very important today. When buying a boiler, all settings are simply entered manually at once or selected from an already installed list.
There is no need to control the temperature, gas boilers independently regulate the gas supply and the temperature of the coolant. Such equipment often tops a special rating of boilers, it is not only economically beneficial, but also beneficial to health, since the air temperature at night, slightly lowered to a certain value, has a positive effect on the general state of human health.
The rating of gas boilers is a real opportunity to correctly and quickly choose exactly the equipment that is best suited for specific conditions. According to the indicated data, it is possible to determine how much power is needed and under what conditions, what requirements are placed on the equipment itself, whether automation is so important and under what conditions it simply cannot be dispensed with. These tips will help you choose equipment that will work effectively for many years, providing comfort and coziness in the house.
EVAN S1 18
Russian single-circuit high power boiler. This model allows you to maintain a comfortable temperature in large areas.The retail price of the boiler ranges from 21,000 to 25,000 rubles.
Specifications
The main indicators of the equipment include:
- base power - 18 kW;
- required voltage - 380 V;
- Efficiency at the level of 93%;
- limiting temperature of the coolant - 85 0С;
- the minimum temperature in the system is 30 0С;
- heating area - 180 m2;
- limiting working pressure in the system 0.3 MPa;
- section of the circuit pipeline - 1 ¼ inches;
- expansion tank is missing;
- weight no more than 24 kg;
- body dimensions - 645x250x180 mm.
Model Features
This boiler is simple in design and unpretentious in operation and maintenance. It does not have an automation system, but the developers took care of the possibility of connecting its elements. So, connectors and sockets are built into the boiler circuit for connecting a circulation pump and an air temperature sensor, which are necessary to automatically maintain the set temperature level in the room.
The small dimensions of the model allow it to fit into any existing circuit as an additional heating element, as well as to be used as an independent heat source. One circuit provides space heating, so a storage boiler must be installed to supply hot water.
All elements of the boiler are made of materials that are not subject to corrosion, which significantly increases the service life of the equipment. Power surge and pressure protection systems ensure trouble-free operation of the model.
Boiler installation
Installation of this model does not require special skills due to the simplicity of the design. But taking into account the requirements for the network voltage, it is necessary to draw up a project for autonomous heating and coordinate it with the electrical distribution organization.
The pipes must be connected in such a way as to ensure the natural circulation of the coolant. This connection reduces the load on the pump and contributes to a more economical operation of the equipment. The maximum level of the coolant in the pipeline should not exceed 30 m; at a higher value, the boiler pump will not be able to circulate it. The best option for working with advanced piping systems is the additional installation of a circulation pump.
It also requires the installation of an expansion tank, which ensures the discharge of excess volume of coolant or steam. It is not allowed to install shut-off valves at the junction of the circuit and the expansion tank. At the inlet and outlet of the circuit from the boiler, ball valves are installed for repair and dismantling.
On all sides of the body, clearances from obstacles of at least 5 cm are left along the side faces, at least 50 cm from the floor and ceiling, as well as the front surface of the boiler with the control unit.
Flaws
The biggest inconvenience in working with this model is the need to install a large amount of additional equipment. As a result, the total cost of the system increases by 20 - 35%.
Buyer Tips
When choosing an electric boiler for heating a private house, you should pay attention not only to reviews and electricity consumption, but also to other parameters. one
Mounting method. In an apartment or in a small private house, it is optimal to install a wall-mounted boiler. They look aesthetically pleasing, neatly fit into the interior of the home, and at the same time are able to produce a significant temperature. As for the floor options, they can be attributed to industrial or semi-industrial models. These are units for large households with a power of 24 kW.
1. Mounting method. In an apartment or in a small private house, it is optimal to install a wall-mounted boiler. They look aesthetically pleasing, neatly fit into the interior of the home, and at the same time are able to produce a significant temperature. As for the floor options, they can be attributed to industrial or semi-industrial models. These are units for large households with a power of 24 kW.
2.Method of connection to the mains. Economical electric boilers of low productivity are plugged into a regular 220 V outlet. But for units of medium or high power, it will be necessary to lay a three-phase 380 V network. A conventional 220 V network will not pull such a load.
3. Number of connections. Here is the standard classification: single-circuit and double-circuit models. The first ones are exclusively for heating, the second ones also heat water for plumbing.
4. And yet the main indicator is productivity. It determines the consumption of electricity and the heating area. Standard minimum - 100 watts per square meter
Pay attention to this point: the worse the thermal insulation of your house, the more power the boiler will have to buy, and, accordingly, you will have to pay more for electricity later.
A few more guidelines. In terms of current strength, it should be limited to a maximum of 40 A. Electric boiler nozzles - 1 ½ ″ or more. Pressure - up to 3-6 atmospheres. Mandatory power adjustment function - at least 2-3 steps.
Be sure to take an interest in the quality indicators of the local power supply - if the voltage drops to 180 V in the evenings, the imported model will not even turn on.
Before buying an electric boiler for 10-15 kW and above, find out if the transformer from which the house is powered will pull. And then you will have to lay an additional line to your estate.
As for specific models, the most popular are imported, as they provide high performance with minimal power. Among the most bought, according to sellers, are:
- wall-mounted, single-circuit Tenko KEM, 3.0 kW / 220V, cost around $ 45-55;
- wall-mounted, single-circuit UNIMAX 4.5/220, cost $125-200;
- wall-mounted, single-circuit Ferroli LEB 12, 12 kW, price - $ 350-550;
- wall-mounted, single-circuit Protherm Skat 9K, 9 kW, cost $510-560.
