Heating boiler

How to choose the right economical electric boiler

To choose the right model when buying, you should pay attention to the following nuances:

unit dimensions and compliance with the selected installation area;
lack of vibration during operation;
the presence of intelligent automation;
efficiency of the system. To reduce the cost of electricity consumption, the possibility of adjusting the temperature regime must be present;
the ability to install additional devices for temperature control in each room.

Important criteria are the cost of the equipment itself and its installation.

If ease of maintenance and low price are important to you, then you should pay attention to the heating element boiler. Heating elements will have to be changed every 5 ÷ 10 years.

The most compact devices are electrode and induction. Induction units can work with oil products and with any other coolant. Electrode boilers are more demanding in operation.

The electric boiler is recommended to be installed in a separate room.

How to save money in traditional systems?

Since the middle of the twentieth century, water heating technologies have been used to heat a private house and multi-storey buildings. A properly designed system allowed for manually adjusting the heat dissipation of each battery and thus ensuring energy savings. But with cheap fuel, when overheating, they opened the window, and did not twist the valve on the battery.

The energy crisis has led to a manifold increase in fuel prices. Instead of a manual valve, thermostatic valve technology was used. They themselves maintain the desired temperature of the radiator. When the room overheats, the valve will reduce the water supply to the battery, and its excess will go through the bypass - the bypass pipe. This method will increase energy savings and reduce heating costs by 1/5 or even 1/4.

An even greater effect is obtained by connecting all thermostatic valves when automating the control of the heating system.

Benefits

Energy efficient heating equipment is becoming more and more popular. This happens, first of all, because the population today has to reduce the consumption of fuel resources, taking into account the increasing tariffs for their use every year. During the Soviet period, few people were worried about this problem, since the cost of the same electricity was cheap. Under these conditions, citizens are trying to be more prudent, and manufacturers help them save money by creating devices with less fuel consumption, while maintaining comfortable temperature conditions.

For energy efficient electric boilers, additional benefits are:

compactness;
aesthetics;
the possibility of installation in living rooms, and not just in separate rooms;
cleanliness - absence of carbon monoxide and ash;
the uselessness of the chimney device;
noiseless operation;
minimum maintenance costs;
maximum comfort in operation;
Fire safety.

Energy efficient boilers really deliver real energy savings. And this happens due to the special design of the main components of the equipment and the physical and chemical reactions taking place inside the circuit. Such electrical appliances are allowed to be installed not only on new, but also on previously installed systems.

Until recently, gas boilers for autonomous heating systems were consistently considered the most profitable.But the highways, unfortunately, are not laid everywhere, and even at peak loads, the pressure of blue fuel in the networks can drop significantly, which leads to poor heating of the premises. Power surges, on the other hand, do not have such a detrimental effect on energy-saving electrical appliances. In addition, a permit for their installation is not required to be taken, as when installing gas boilers. By the way, the permitting procedure can take quite a long time, and end with a negative result.

Main technical parameters of energy saving electric boilers

There are several criteria to consider, you do not know which is the most economical electric boiler to choose for your home. Here they are:

unit dimensions and installation area;
the boiler must be equipped with an automatic system that saves energy. In this case, as much heat will be produced as required for a particular room;
the functionality of the device is the rapid heating of the liquid that passes into the chamber. This parameter determines the efficiency of the unit;
the manufacturer's guarantee is the efficiency and reliability of the equipment. Depending on the manufacturer, this period can last up to 30 years;
manufacturers can be not only foreign, but also domestic.

Power is an important indicator. Depending on it, the connection can be carried out both to a 220 V source and to 380.

Example of technical characteristics on selected models

Some nuances of choosing a water heater for heating

When deciding what is the most economical electric boiler to choose for the house, you need to decide with what intensity it is supposed to work. If this is only additional heating, then 2-3 kW of power will be quite enough. You should also think about the need for a second circuit. If you need hot water in the house, then it will be much more profitable to purchase a double-circuit water heater for heating than to buy a separate one for hot water supply. And in the process of operation, obvious savings will be noticeable.

For many, the most important quality indicator is the brand, but you should not blindly trust what is written on the package. In our time, there is a lot of falsification. But even if all the documents and certificates are in order, perhaps there is an electric boiler next to it on the counter with the same characteristics and not worse quality, but at a lower cost. This happens because of the overpricing "for the brand". The more it is promoted, the higher the cost of the goods will be, which is not always justified by the quality and equipment.

Some electric boilers are so compact that they practically do not differ from main pipes.

Heating element

The most popular type of boilers due to its compactness, low cost, the ability to work with any coolant and ease of operation. Heating elements electric boilers are equipped with a protective block that allows the boiler to work in automatic mode.

Let's consider their structure and principle of operation. Main working blocks:

Heat exchanger - a tank with heating elements (heating elements) fixed in it;
Circulation pump (creates the required pressure in the system);
Air valve;
Heating agent pressure sensor with safety valve;
Control unit with temperature sensors and indicators;
Expansion tank (only for energy saving models).

Diagram of a heating element electric boiler
The coolant enters the heat exchanger, where it is heated with the help of heating elements (TENs), and then is distributed to the heating system. The pressure required for the circulation of the coolant is generated by a circulation pump. When the maximum pressure mark is exceeded, which is controlled by the sensor, the safety valve is triggered.To protect the coolant from boiling, the system is equipped with an emergency temperature sensor that turns off the boiler when the temperature reaches 95 degrees. It is possible to regulate the boiler power by turning on / off the heating elements.

With the help of a control unit equipped with thermostats, control over the entire system is carried out in automatic mode. Depending on the boiler model, temperature sensors are of two types - controlling the temperature of the coolant or the temperature of the air outside the installation. The second type of sensors is located outside the boiler. When the coolant (or room temperature) cools, the circulation pump is turned on, then the coolant is heated to the set temperature, fed into the system and the boiler is turned off.

A little more complicated is the system with an expansion tank, which allows you to accumulate the heated coolant and gradually use it in the system, without restarting the boiler. This saves a lot of energy, but requires additional tank space.

The main disadvantage is that when using a coolant with hardness salts (hard water), scale gradually forms on the heating elements. With a scale thickness of 2-3 mm, the heat transfer of the heating element sharply decreases, and its efficiency is about 30%. At the same time, energy consumption remains at the same level, which leads to excessive consumption of electricity.

The main purposes of infrared ceiling heaters

This type of device is the most convenient, since it does not take up much space and the range of its radiation is very extensive.

Available for sale pendant models, which are attached to the ceiling using special brackets. With this installation, the distance from the installed structure to the ceiling is about five centimeters. Or you can choose a recessed device for a false ceiling.

Due to their safety, infrared heaters can be installed in children's rooms. They will not raise dust and dry the air in the room.

IR heaters can be used in homes with a large number of indoor plants that require stable, comfortable conditions to grow. In the fight against ice, devices can be installed on the surface of glazed balconies or loggias.

For a country house, it is recommended to choose longwave infrared heater ceiling type, which has a built-in heating element as a heating element. Such a device heats up to two hundred degrees and is fireproof. However, the distance from it to objects located in the room should be at least one and a half meters.

For an area of ten square meters, a device of a thousand watts is suitable. For a country house of thirty squares, you will need two such heaters.

Features of installation of electric boilers

High-quality installation of electrical equipment requires special materials and tools. These are electrical wires, cables, fasteners, metal pipes and fittings. The factory unit usually comes with a special installation diagram.

Alternatively, the device can be installed in a separate room, where children or strangers will not enter. Heating elements can also be installed in the kitchen.

Equipment installation diagram

It should be mounted so that there is free space on the sides and above the top. The following distances must be respected:

to the ceiling at least 80 cm;
up to the floor covering at least 50 cm;
to the surface of the walls at least 5 cm.

Before installation, you need to do the markup. The device must be placed in a horizontal position

Before choosing a cable size, it is important to determine the capacity of the equipment. When installing floor-standing boilers, you can use a standard stand

Installation with safety group

During installation, the following safety rules should be observed:

it is important to turn off the electricity; do not install the device near a water supply line; it is necessary to observe the recommended distances between the device and different surfaces; the boiler must be connected to the grounding circuit; the equipment must be mounted on a wall made of non-combustible materials.

And the connection to the heating system is carried out as follows:

pipes to the return and flow pipes of the heating circuit are fixed to the inlet type branch pipes. They are connected using ball valves;
a mud filter and a membrane-type expansion tank are mounted on the return line.

Installation in a private house
Installation of an induction or electrode boiler is carried out using a centrifugal pump piping and a safety group. In some cases, an electric boiler is used as an additional device together with a solid fuel unit.

An important step is also connecting the equipment to the electrical network. It is imperative to take care of grounding.

Electrical connection option

Overview of the main manufacturers and models of energy-saving electric boilers

Let's take a look at the major manufacturers of energy efficient equipment.

Galan

Galan is a Russian company that produces heating electrical installations for residential and non-residential premises. The company was established in 1994. It produces energy-saving boilers of electrode and heating elements, automation devices and a ready-made heat carrier. The company produces all electronic controls independently.

Galan model connection

Such equipment allows you to set a constant temperature and maintain it. In boilers of this manufacturer, antifreeze is used as a coolant. Careful handling is necessary when filling such a liquid, as it is quite aggressive. The most popular models include "Geyser", "Ochag" and "Volcano".

The units have the following advantages:

high quality level;
small size;
practicality and reliability

Savitr

occupies one of the leading positions in the electric heating systems market. It not only manufactures equipment, but also develops innovative devices. This brand specializes in the production of units with a capacity of 4 to 240 kW.

All boilers are equipped with switching power supplies and reliable operation in case of voltage drop. The presence of a built-in controller allows connecting a GSM module. The products are represented by a large number of models of various configurations and various power ranges. The company offers customers an effective warranty and post-warranty service.

Savitr offers boilers for heating large rooms. Models are great for northern regions.

Reliable equipment

Before installing the equipment, it is necessary to test the quality of pipes. They should be free of rust.

Energolux

Devices from Ukraine are also popular. The equipment has a function such as climate control. Models are available with wireless temperature sensors and a range of different programs. This technique is not recommended if voltage fluctuations occur frequently.

It is worth noting such models of energy-saving equipment as Elite and Premium.

How to choose an economical electric boiler

When buying a device, you need to pay attention to:

The dimensions of the boiler and their correspondence to the area of the future installation site.
Environmental safety of the device.
The need to supply additional paths for the removal of products from the boiler or ventilation.
Design.
No vibration during operation of the Pibor and its complete noiselessness.
Boiler performance. It should be appropriate for the size of the system in which it will need to work. A low-power device will quickly fail.
Safety and efficiency of the device.
Intelligent automation.
The rate of heating the liquid entering the boiler chamber.
Energy consumption for a month of continuous operation of the device.
Availability of additional functions and modifications.
Manufacturer's warranty and quality certificate.

Types and their features

Types of electric economical boilers:

Electrode.
Ionic.
Ion exchange.

The principle of operation for all types of economical devices is similar, only the process of converting electricity into required heat differs.

Energy savings are achieved through:

Heating inertia reduced by an order of magnitude.
The special physics of converting electricity into heat.
Smooth start.
The use of automated control of the temperature of the coolant and air.
Two-pipe system (not to be confused with two-circuit).
Constructions made of modern materials.
Increased operating efficiency, which reduces energy consumption if the system uses high-quality radiators.

Heating devices powered by electricity are:

Single-circuit.
Double-circuit.

A double-circuit boiler has two functions: heating the coolant and instantaneous heating of water for domestic purposes. If the device is used for two purposes at once, the energy consumption does not increase during the heating season.

Energy-saving boilers are divided according to the type of fastening during installation:

Wall mounted.
Outdoor.

Requirements for modern boilers

When choosing heating equipment, consumers pay attention to it:

environmental friendliness;
security;
functionality;
profitability during operation;
ease of maintenance.

All of the above requirements are met by energy-saving heating boilers that operate on electricity. Such devices compare favorably with their gas counterparts, which until recently were considered the most optimal option for private households. The disadvantages of electrical appliances are: their dependence on an uninterrupted supply of energy resources and the high cost of equipment, which, however, tends to pay off quickly.

It is recommended to entrust the installation of equipment to specialists, since illiterate connections can lead to serious damage. It will not be superfluous to decide on the technical possibility of connecting an energy-saving boiler to the existing electrical wiring. It is possible that a separate cable will have to be laid to the device and a ground loop will have to be made.

Criteria and rules for choosing a device

When choosing heating equipment in the form of a heater for a home or summer cottage, it is very important to take into account the total area of the room in which the installation of such a device is planned. It is also necessary to take into account the need to transfer the heating device from one room to another. The basic selection rules are as follows:

if cost is considered as a determining factor, then it is recommended to give preference to fan heaters or convectors;
if necessary, create a local comfort zone in the room, you can use modern infrared emitters;
for use as the main heating, the best option would be to purchase film models or their varieties, mounted on the ceiling surface or under the floor covering.

Power ratings can also vary depending on the application. In addition to the main heating system, devices with a low power are selected. If the heater will be used as the main or backup heating of the house, then it is advisable to focus on indicators of 1 kW for heating every 8-10 m2 of the area in the room.Energy efficiency values may vary depending on the heat loss parameters.

dachadecor.ru

Single-circuit and double-circuit energy-saving electric heating boilers

Depending on the purpose, the 220 V energy-saving electric heating boiler can be of two types. Single-circuit models are used only for heating. In this case, the coolant circulates through a closed system and radiators. Dual circuit designs are more practical. They not only heat the room, but also supply it with hot water. In such equipment, electrodes act as heating elements, transmitting electric current to the coolant. Electrode double-circuit boilers most often have compact dimensions and can be hung on the wall.

For heating a house of 100 square meters or more, a single-circuit electric boiler is often used.

Scheme of operation of a double-circuit unit

Number of circuits in water heaters

Single-circuit electric heating boilers make it possible to heat only the coolant. They can heat the house, but with the hot water supply system, in this case, they will have to decide something. Typically, homeowners install a separate water heater that solves this problem. However, it is much easier to fix it in another way.
Double-circuit heating boilers are quite a convenient thing. It is especially pleasing that, in the presence of a second circuit for the device of a hot water supply system, there is no additional power consumption. This happens due to the fact that the water is heated from the heating medium of the heating system. Everything happens as follows. In the tank where the hot water is located, there is a coil through which the coolant, heated to a certain temperature, passes. At the same time, he gives up part of his heat to water, heating it. It turns out that if you install a single-circuit electric boiler for heating a house of 100 square meters and compare it with a double-circuit analogue that allows you to connect hot water supply, then there will be no noticeable difference in electricity consumption.

Electric boilers for heating can also be wall-mounted - they are more compact.

Coolant composition

The efficiency of the unit depends on the electrical properties of the fluid. Electrical conductivity is not provided by the water itself, but from the salts it contains.
In accordance with the instructions of the manufacturers, drinking water is used in accordance with GOST 51232, the resistance is 1300 Ohm per cubic centimeter. In practice, it also depends on the characteristics of the electrical network.

The required current parameters are indicated in the boiler passport. Deviations from these figures are compensated by the composition of the water:

at a higher current, distillate is added to the drinking water;
if it is too low, the amount of salts is increased. You can use baking soda, 30 grams per 100 liters.

Sometimes manufacturers allow the use of non-freezing liquids as a coolant. Their physicochemical characteristics are different, usually it is necessary to dilute the original composition with distilled water.

The design of the system (characteristics of the pump, pipes, expansion tank, etc.) also differs from the usual water circuit.

Advantages, disadvantages of heating elements of boilers

Benefits:

Compactness. The machine can be placed without worrying about the installation location.
Availability.
Ease of installation. Installation takes several hours.
Devices can be adjusted. Suitable temperature setting is possible.

Disadvantages:

The equipment is subject to frequent breakdowns. Heating element - heating element (thermal electric heater). The main part is a tube. May break if exposed to heat.

Design

The electrical appliance is not resistant to lime scale formation. If hard water is used as a heat carrier, then the device becomes covered with plaque.The heat transmission capacity is reduced, the temperature readings set on the sensor will differ from the real ones.

The equipment has not many drawbacks, mainly, they are related to the peculiarities of work. If you monitor the condition, use only soft settled water, errors can be leveled.

Otherwise - a decent option for heating the house. You can heat small rooms, large rooms.

The main types of energy-saving boilers

Consider the main types of energy-saving boilers:

Heating elements boilers are equipped with a tubular heating element that heats the water when driving;

Heating element new model

induction work thanks to the principle of magnetic induction. In this case, a ferromagnetic alloy is heated inside the coolant;

Induction design

the electrode unit heats up when current passes through the electrolyte. In this case, the molecules are transformed into anions and cations. As a result of this process, thermal energy is released;
molecular models are new to the boiler industry.

Electrode device
You can use any option to heat your home with electricity. Energy savings are cheap under the following circumstances:

by reducing the inertia of heating;
with a smooth start;
when using automatic temperature control;
due to the use of a two-pipe system with high-quality radiators.

Benefits

SLO has high physiological properties. Low-temperature film electric heaters have a maximum surface temperature of + (40-45) ˚С, which provides a soft long-wavelength infrared heat flux radiation. These rays do not heat the air, leaving its moisture content natural. They heat objects, floor, ceiling. In this case, the speed of movement of convective flows decreases by an order of magnitude. Getting on the human body, these rays activate the peripheral circulatory system of a person, which is the reason for the onset of a feeling of thermal comfort 2-3 ° C earlier than with convective heating. The rays emitted by heaters are the most useful part of the solar spectrum. They compensate for the "solar hunger" that occurs in the autumn-winter period in the Ural-Siberian region.

Confirmation of the positive physical properties is the information that such devices are used by British doctors to treat herpes, remove wrinkles on the face and for other cosmetic purposes. The high operational properties of the SLO are determined by the service life - more than 50 years. Almost no maintenance costs are required. The simplicity of the installation technology is ensured by the absence of metal-intensive structures.

The high design potential is ensured by the fact that the radiant heat generators located on the ceiling can be covered with any elements of the ceiling design. The presence of the heating system is "issued" only by programmable regulators located on the walls. The innovation process both in the Russian Federation and abroad is mainly associated with the expansion of the use of natural gas, the installation of autonomous boiler houses, and the use of radiant gas systems. The use of electricity is limited by its high cost, which is objectively manifested if electricity is used as fuel (electric boilers, electric radiators, electric panels).

The innovativeness (novelty) of the process under consideration is determined by the following components:

The use of a radiant film electric heater that converts electricity into a stream of soft infrared radiation, which has physiological properties favorable to humans.
The use of a regulator that provides a high-temperature regime (20 ° C or other required temperature) only when people are in the room.
The use of thermophysical properties of the building corresponding to modern SNiP, which allow the formation of pauses in the consumption of electricity

In essence, this is heating of a new level. One of the main advantages of the SLO is the practical absence of operating costs and a long service life - up to 50 years.

Energy saving electric boilers for home

Climatic offers a wide range of electric boilers of various capacities. Read the information or call our consultants to select the required boiler model.

An electric heating boiler consists of a heat exchanger, a block of heating elements, a control unit and control and safety devices. Some electric boilers are equipped with a circulation pump, expansion tank, safety valve and filter. The electrically heated coolant circulates through the system of pipes and radiators, providing heating of the premises, as well as heating the water in the boiler. An electric double-circuit boiler is used for heating and hot water supply, a single-circuit one is used only for heating a house, as well as for a warm floor.

Compared to boilers using other types of fuel, electric boilers are cheaper, more compact, safe and quiet. Connecting electric boilers is much simpler and more inexpensive than other types of boilers. Due to their compact size and low weight, electric boilers are wall-mounted, do not require a separate boiler room and installation is allowed in utility or utility rooms, storerooms, in the kitchen, in the basement, and even in living rooms.

Electric boilers are easy to operate and do not create harmful emissions and odors, do not require constant maintenance, expensive cleaning and regular purchase of fuel.

Dependence on the stable availability of electricity and high requirements for the quality and reliability of electrical wiring. You should also take into account the rather high cost of electricity. For an informed decision on the purchase of an electric boiler, it is recommended to make a preliminary calculation of the cost of electricity.

240 days X 8 hours a day X boiler power X cost of 1 kW of electricity

Electric boilers with power up to 12 kW are available in single-phase (220 V power supply) and three-phase (380 V power supply), and boilers with a power of more than 12 kW are only three-phase. Most electric boilers with a power of more than 6 kW allow multi-stage power regulation.

To select a specific model of an electric boiler, you can contact the consultants of the Thermomir company. Remember that in addition to the boiler itself, it is necessary to purchase other elements of a full-fledged heating and water supply system (radiators, pipes, pumps, thermostats, a boiler and much more), therefore, it is better to entrust the selection of equipment and its complete set to professionals.

The nuances of installing electric boilers for heating

Installing an electric boiler to heat your home is easy. This work is quite doable without the help of professionals with your own hands. You just need to follow the instructions, which must be attached to the technical documentation.

It's important to know! Before starting to connect the electrical equipment, it is necessary to remove the voltage from the supply wire from the input machine. Remember that electric shock can not only harm your health - it can be life-threatening!

When installing the boiler, you need to be very careful - the voltage must be disconnected

The only caveat can be called the fact that many manufacturers break off the warranty agreement when installing it yourself. Their main requirement is the installation of equipment by licensed specialists. If such products are purchased, it is better not to take risks and entrust all the work to professionals.

If you are not confident in your abilities, it is better to seek professional help.

Electrode boilers

Such models belong to energy-saving heating equipment. They can perform the function of both main and auxiliary devices, but they can be installed only on closed-loop systems. Electrode boilers can be mounted in cascades, which makes it possible to install mini boiler rooms serving several buildings.

The high cost of the equipment under consideration, in comparison with heating elements analogs, inhibits the rapid popularization of energy-saving boilers. Not everyone wants to look into the future, but the immediate benefit is noticeable immediately. Therefore, not everyone thinks about the further possibility of saving energy. But in vain.

Electrode boilers are:

high efficiency - up to 99%;
good heat dissipation at low power;
durability provided by design features;
maximum compactness;
modern automation responsible for safety and maintaining optimal temperature conditions in the house.

The quality of electrode boilers is confirmed by the use of their principle of operation in heating systems located at the objects of the defense industry. For example, such devices were installed on submarines and ships.

Electrode boilers have their disadvantages, including the requirement to constantly maintain the resistance of the energy carrier and poor compatibility with some materials for the manufacture of radiators and heating pipes. But according to the assurances of experts, these shortcomings are completely removable. So the "weak link" of the boiler is only its high cost, which will be recouped in the near future.

Electrode heating boilers and their features

This type is the most common, which is not surprising. In most old houses in the private sector, heating is done in an open way. And what is the point of remodeling the entire system for an induction heater, if you can only install electrode equipment.

Such a small electrode boiler has a power of 5 kW

Here electrolysis is used as heating. The boiler itself is connected to "zero", while a "phase" is applied to the electrode in the center (three electrodes at a voltage of 380 V). It turns out a kind of "student" or "army" boiler. Such systems are the safest in comparison with heating elements. Indeed, in the event of a water shutdown, a closed electric heating element (in the event of an automatic failure) can simply explode. Electrode equipment is free of these risks. The lack of liquid in the boiler entails a break in the contact, which means that the electric boiler will simply stop functioning.

We invite the dear reader to read one of the reviews about the electrode boiler for heating a private house.

Gvoz4D, Russia, Ussuriysk: For installation and commissioning, basic knowledge of physics at the 8th grade level and the ability to distinguish zero from phase are sufficient. First of all, do everything according to the instructions and, indeed, special attention to the coolant, compliance with its parameters. (...) I have been using the Galan electrode boiler from the end of December to the present, and I am absolutely satisfied with it. I anticipate an increased bill for electricity, but it will be more likely a consequence of playing with salt in water, since I set up the boiler "manually", that is, without a device measuring the load ... Now we have reached the calculated parameters, and now this coal has surrendered to me, this constant tension -to heat the stove for five months a year ...
More details on otzovik:

Disassembled electrode boiler - there is nothing complicated in it