How much electricity an electric boiler consumes: how to make calculations before buying

Factors that affect consumption?

The basis is power. For household electric boilers, it varies between 12-30 kW.But you need to take into account not only the power, but also the specifics of your electrical network. For example, if your real voltage does not reach 200 volts, then many foreign models of boilers may simply not work. They are designed for a voltage of 220 volts, and a difference of two dozen volts can be critical.

Even at the design stage, you need to take into account many nuances:

• what boiler power do you need;
• Do you plan to install a single-circuit or dual-circuit system;
• what area needs to be heated;
• what is the total volume of coolant in the system;
• what is the magnitude of the current;
• period of operation at maximum power;
• kilowatt-hour price.

The heat loss of the house is also taken into account. They depend on the materials on which the building was built, the availability and quality of insulation, climate, the size of windows and doors, and other things. With this information, you can more accurately calculate how much heating with an electric boiler costs.

What you need to know before installing heating

The power of the line brought from the power line is limited. According to Decree No. 334 of the Government of the Russian Federation, which entered into force in April 2009, power grids are required to allocate 15 kW per household. At first glance, a lot: on average, an electric boiler of this power can heat a house up to 150 square meters. m.

But after all, there are other energy-intensive receivers in the dwelling and on the site: a boiler, a washing machine and a dishwasher, an oven, a microwave oven, equipment in the workshop, etc. It is necessary to assess the level of consumption and calculate how much is left for heating.

If you apply with an application to Rostekhnadzor, the limit may be raised. But in some regions, the state of networks does not allow this.There is a solution, but it can be expensive: sometimes a homeowner has to pay to replace a transformer at a substation in order to connect a powerful heater.

When heating with electricity becomes more economical than gas

Assume that the distribution network that feeds a private house with electricity has sufficient reserve. Electricity is converted into heat almost 100%. Therefore, energy can be lost only on the heat loss of the house. It is with the heat loss indicator that all calculations begin. In practice, a block insulated cottage with an area of ​​120 m2 has a heat loss of 8-12 kW. It follows from this that the boiler needs to be bought with the same power plus the energy that will go to heat the water.

And now let's calculate how economical it will be to heat a private house with electricity at a reduced rate and make a comparison with the cost of a gas system. For convenience, we will use one of the ready-made calculators, of which you can find a lot on the Internet.

We proceed from the fact that the heat loss of the house is 8 kW, and the heating season lasts 7 months. The cost of 1 m3 of gas is 0.119 BYN, and the tariff for 1 kW of electricity is 0.0335 BYN.

Screenshot from the cost calculator

As a result, electricity consumption is 23,387 kWh for the heating season, or 783 BYN. This is +/- 111.8 BYN per month. You will use gas for 295 BYN or about 42.1 BYN per month. Plus, in the case of an electric boiler, you need to add the cost of heating the water in the system - this is 4 kW daily or 808 kW for the entire season. It turns out 783+26.8=809.8 BYN per season.

There are ways to reduce the cost of heating with electricity:

1. Installation of automatic power control.You will set a lower temperature, for example, at night or turn the boiler on at minimum power while no one is at home.
2. Warm up the house. So, in modern energy-efficient buildings, heat losses do not exceed 3 kW. In this case, you will spend 183.8 BYN per season.

Comparison of maintenance and connection costs for gas and electric heating

We would not confidently declare that an electric boiler is cheaper than a gas one. Yes, the simplest electric boilers are inexpensive, but their energy consumption is higher, since there is no power control system depending on the desired room temperature. Here you can only set the temperature of the water in the system.

Electric heating connection

In a house for which we considered energy costs, we would choose a medium-class electric boiler Proterm Skat12K kW worth 1560 BYN. You need to buy a boiler for it for 800 BYN and a module for connecting to the boiler for 297 BYN. As a result, the amount of 2657 BYN accumulates.

To install an electric boiler, you need to get permission from the power grid. It does not require mandatory maintenance. You will pay a one-time fee of 70-80 BYN for connection and adjustment.

To pay for heating with electricity at a reduced rate, you need to install an additional meter costing from 126 BYN, you need a shield for it, which will cost 70 BYN.

Gas heating connection

We would buy a Bosch 6000 for 1260 BYN, a boiler for 800 BYN and a sensor for it for 110 BYN. It turns out only 2170 BYN.

Additionally, connecting a gas boiler to the gas pipeline pipes will cost approximately 1600 BYN, provided that gas communications are connected to your site.The cost of start-up and adjustment will be about 70-90 BYN, plus calling a specialist to check ventilation costs 40 BYN. Connection to the gas pipeline costs another 100 BYN. And every year the boiler will require maintenance, the cost of which is 50-80 BYN. Here we will include digging trenches for pipes. In total, 2500-3000 BYN is added to the cost of equipment.

There are other nuances in connecting the gas heating system to the mains. Because the section of the gas pipeline can be both state-owned and cooperative. In the latter case, you sometimes have to pay several thousand USD for a "tie-in" into the system. of course, due to the cheapness of gas in the Republic of Belarus, all costs will pay off over time, but it will take not a year or even two.

How much does an electric boiler consume

Electric boilers are installed in houses for heating and water heating. However, behind the simplicity of the design and ease of operation lies a high power consumption. Models of electric boilers differ in power, design, number of circuits and the method of heating the coolant (heating elements, electrode or induction heating). Double-circuit boilers are used for heating and water heating. Boiler models are more economical than flow models.

The choice of the boiler is made on the basis of the required power, which it must have in order to provide heating of the premises of a given area. When calculating, it should be taken into account that kW is the minimum power of the device required to heat 10 sq.m. of the room area. Additionally, climatic conditions, the presence of additional insulation, the condition of doors, windows, floors and the presence of cracks in them, the thermal conductivity of the walls are taken into account.

Note! The final power of the electric boiler is influenced by the method of heating the coolant, while the electrode devices are able to heat a large area, while spending less electricity.

To determine the electricity consumption of an electric boiler, it is necessary to calculate the mode of its operation. It should be borne in mind that the device will operate at full capacity for half the season. The duration of his work per day is taken into account. Thus, to determine the total electricity consumption per day, it is necessary to multiply the number of hours by the power of the device.

Double-circuit boilers consume electricity both in winter and in summer.

To reduce the cost of energy consumption of the boiler, a two-phase meter should be installed, according to which the calculation of electricity at night is carried out at a reduced rate. It will also save the use of an automatic control device for electrical appliances, which will control the operation of the device based on the time of day.

Methods for determining the power of an electric boiler

You can make calculations in different ways. It is necessary to calculate all the little things, using different methods. This way you can guarantee the accuracy and error-free calculations. The main task that the equipment must cope with is heating the entire room, and not just individual rooms.

Basically, two methods of standard calculations are used:

• by the volume of rooms and premises;
• by the area of ​​living rooms and houses that are connected to the main source of heating.

You also need to make sure not only the power of the boiler itself.May not withstand electrical wiring with too much power and fail

For this reason, it is very important to calculate all the parameters in several ways.

Calculation of boiler power according to the area of ​​\u200b\u200bthe house

This method is basic and is used quite often. A room of 10 sq.m. is taken as a basis. But the coefficient does not take into account a lot of important parameters. For example, the thermal conductivity of the walls of rooms is not taken into account. To heat 10 sq.m. need to spend 1 kW of power. Based on this, calculations are made.

The heat loss coefficient is also taken into account, which is equated to a value of 0.7. For example, the area of ​​​​the premises is 170 sq.m. Without taking into account the coefficient, the number 170 must be divided by 10, you get 17 kW. This value is multiplied by 0.7, the result will be the required power - 11.9 kW.

Not suitable for calculation in the following rooms and premises:

• if the ceiling is higher than 2.7 meters;
• in the case when there are plastic or wooden windows with double glazing;
• lack of thermal insulation or the presence of an attic without heating;
• the presence of additional thermal insulation with a thickness of more than 1.5 cm.

Calculation of boiler power by room volume

In these calculations, the volume of the room plays a key role. For this method, the following formula is used:

(V*K*T)/S

V is an indicator of the volume of the house;

K is the correction factor;

T - temperature difference inside and outside the room;

S is the area of ​​the room.

Such an indicator as a coefficient is individual for each building. It all depends on the purpose of the rooms, the footage and the materials from which the building is made. The value is distributed in the following categories:

Coefficient	Purpose
0,6-0,9	Brick buildings with good insulation.Double-chamber windows can be installed, a heat-insulating roof is used.
1-1,9	Double brick buildings with built-in timber windows and standard roof
2-2,9	Poorly insulated rooms that allow heat to pass through
3-4	Houses made of wood or metal sheets and panels with a slight layer of thermal insulation

The calculations result in values ​​slightly larger than the standard ones. This will help to avoid consequences: in case of severe frosts, there will be enough heat to warm the entire room. This formula does not take into account the required power to press water into the taps or for an additional source of heating.

Sanitary standards take as a standard indicator 41 kW per 1 cubic meter of water. It is also necessary to measure the height of the room and its area, adding to these values ​​​​the insurance coefficient for unforeseen life events.

Calculation for DHW

If a heating boiler is used at the same time as a source of hot water for the whole house, then many factors must be considered. These include:

• calculation of the allowable temperature and the amount of hot water that is necessary for the autonomous life of all residents of the house;
• the amount of water used daily.

The volume of hot water can be calculated by the formula:

(Vr * (Tr – Tx) ) / (Tr – Tx)

Vr is the desired volume;

Tr is the temperature of running water;

Tx is the required tap water temperature.

To correctly calculate the required volume of warm water, you must do the following:

• calculate the volume consumed for each family member;
• calculate the total volume of hot water consumed;
• using the formula to calculate the additional power of the boiler.

To correctly calculate the amount of water consumed per day by all family members, you need to know the following:

• in ordinary residential premises, no more than 120 liters of water per day per person are spent;
• the same premises, but with gas, are designed for 150 liters per user;
• if there is plumbing, bathroom, sewerage and water heater - 180 liters;
• premises with centralized hot water supply - 230 liters.

Thus, it is necessary to calculate the power of the boiler before buying, since it depends on the force with which the heating of the room will be carried out. The parameters are the area of ​​​​the room, the coefficient of error, the volume and sometimes the height of the ceiling. The indicators vary depending on the calculation method. It is necessary to use several calculation methods before proceeding with the selection of a water heating boiler.

Helpful2Useless

How much electricity does the kettle use

An electric kettle is a convenient household appliance that can provide the owners with boiling water in a matter of minutes.

It is necessary to calculate how many kilowatts the kettle consumes, taking into account the power of the device and the maximum volume of liquid that it can bring to a boil. The larger the volume of the device, the more time it will take to heat the water, and the amount of electricity consumed increases accordingly. On the other hand, the high power of the kettle contributes to its fast operation. However, it requires a sufficient amount of electricity.

All electric kettles are different in their parameters and, accordingly, in terms of energy consumption.

To calculate how much a kettle consumes, you should perform the following calculations:

• the power of the device is taken from the passport;
• the time taken to boil water in the kettle is calculated;
• the consumption of electricity per unit of time is determined;
• the resulting value should be multiplied by the number of times the water is boiled;
• monthly electricity consumption is determined.

Based on the table, the power of the appliance is in the range of 700-3000 W, which depends on the volume of the bowl, body material, displacement, type of heating element, and the chemical composition of water. The heating element can be open (spiral) or closed (plate) type. The first option provides a high rate of water heating, respectively, uses less energy.

The material of the housing also affects the power consumption of the device. In a metal bowl, water heats up faster. However, an additional amount of electricity is spent on heating the case. Glass also heats up quickly, but retains heat worse. Ceramics have a slow heating rate, but the water in the kettle will stay hot for a long time.

Note! Boiling water in an electric kettle is less expensive than using an electric stove.
If you fill the kettle with a minimum amount of water without a reserve, then you can reduce the waste of both water and electricity. To reduce the energy consumption of the kettle, unplug the appliance when not in use.

It should be filled with water of the required volume, without a reserve. You should monitor the condition of the heater, regularly cleaning it from scale

To reduce the energy consumption of the kettle, unplug the appliance when not in use. It should be filled with water of the required volume, without a reserve. You should monitor the condition of the heater, regularly cleaning it from scale.

Ways to determine the consumption of electricity by household appliances and tools

The average electricity consumption in citizens' apartments per month is the sum of the total electricity consumption by all electrical appliances used by its residents. Knowing the electricity consumption for each of them will give an understanding of how rationally they are used. Changing the mode of operation can provide significant energy savings.

The total amount of electricity consumed per month in an apartment or house is recorded by a meter. There are several ways to get data for individual devices.

A practical way to calculate electricity consumption by the power of an electrical appliance

The average daily electricity consumption of any household appliances is calculated by the formula, it is enough to recall the main characteristics of electrical appliances. These are three parameters - current, power and voltage. Current is expressed in amperes (A), power - in watts (W) or kilowatts (kW), voltage - in volts (V). From a school physics course, we recall how electricity is measured - this is a kilowatt-hour, it means the amount of electricity consumed per hour.
All household appliances are equipped with labels on the cable or on the device itself, which indicate the input voltage and current consumption (for example, 220 V 1 A). The same data must be present in the product passport. The power consumption of the device is calculated by current and voltage - P \u003d U × I, where

• P - power (W)
• U - voltage (V)
• I - current (A).

We substitute the numerical values ​​\u200b\u200band get 220 V × 1 A \u003d 220 W.

Further, knowing the power of the device, we calculate its energy consumption per unit of time. For example, a conventional liter electric kettle has a power of 1600 watts. On average, he works 30 minutes a day, that is, ½ hour.We multiply the power by the operating time and get:

1600 W×1/2 hour=800 W/h, or 0.8 kW/h.

To calculate the costs in monetary terms, we multiply the resulting figure by the tariff, for example, 4 rubles per kWh:

0.8 kW / h × 4 rubles = 3.2 rubles. Calculation of the average fee per month - 3.2 rubles * 30 days = 90.6 rubles.

In this way, calculations are made for each electrical appliance in the house.

Calculating electricity consumption with a wattmeter

The calculations will give you an approximate result. It is much more reliable to use a household wattmeter, or an energy meter - a device that measures the exact amount of energy consumed by any household device.

digital wattmeter

Its functions:

• measurement of power consumption at the moment and for a certain period of time;
• measurement of current and voltage;
• calculation of the cost of electricity consumed according to the tariffs laid down by you.

The wattmeter is inserted into the outlet, the device that you are going to test is connected to it. The power consumption parameters are shown on the display.

Measure current strength and determine the power consumed by the household appliance, without turning it off from the network, current clamps allow. Any device (regardless of the manufacturer and modification) consists of a magnetic circuit with a movable disconnecting bracket, a display, a voltage range switch and a button for fixing readings.

Measurement order:

1. Set the desired measurement range.
2. Open the magnetic circuit by pressing the bracket, put it behind the wire of the device under test and close it. The magnetic circuit must be located perpendicular to the power wire.
3. Take readings from the screen.

If a multi-core cable is placed in the magnetic circuit, then zero will be displayed on the display.This is because the magnetic fields of two conductors with the same current cancel each other out. To obtain the desired values, the measurement is carried out on only one wire. It is convenient to measure the consumed energy through an extension adapter, where the cable is divided into separate cores.

Determination of energy consumption by electricity meter

A meter is another easy way to determine the power of a home appliance.

How to count light by counter:

1. Turn off everything that runs on electricity in the apartment.
2. Record your readings.
3. Turn on the desired device for 1 hour.
4. Turn it off, subtract the previous readings from the received numbers.

The resulting number will be an indicator of the electricity consumption of a separate device.

What determines the amount of energy consumed?

From an economic point of view, electric models are best installed in small houses. But in order to determine how much you have to pay for the energy consumed, it is necessary to calculate the heat loss of the building, taking into account:

• total area
• ceiling height
• Wall and ceiling material
• Number of windows

However, not only these factors affect which electric boilers have the lowest power consumption and how to calculate it correctly. The operating time of the temperature maintenance equipment must also be taken into account.

In this case, the inertial heating system wins, the boiler included in it does not work constantly, but at certain intervals.

All kinds of electronic devices can also reduce electricity consumption:

• Room thermostat
• Control device
• Programmable sensor

They allow you to reduce or increase the intensity of heating at certain hours.The amount of energy consumed also depends on the outside temperature, at a lower temperature they will be the highest.

How much gas / electricity does the boiler consume.

The easiest way to measure the amount of gas consumed by boilers per hour is to multiply the boiler capacity by 0.12 cubic meters. This figure is necessary to create and maintain heat in 1 kW. A 10 kilowatt boiler consumes 1.2 cubic meters, for example. If the expense has to be calculated by day, then other formulas and input data will have to be applied.

If the burner does not work for a full day (not 24 hours), then the downtime and the working period are equal to 50%. Consumption time - 12 hours. Then, the daily intake will have to be increased by 12.

To calculate boiler gas consumption per month you need to multiply the consumption per day for days per month (28/29 or 30/31, usually the average value is taken - 30). For example, a boiler of 10 kilowatts will consume 432 cubic meters.

Consider the types of gas boilers

1. Automation. In gas-consuming boilers, specific automation and a timer are installed, which allow you to control the device. Thanks to this automation system, you can use the boiler as comfortably and efficiently as possible and control fuel consumption.
2. Condensing boiler. This type of gas boiler is one of the most economical, since its gas consumption is several times less. Such a boiler uses heat energy, which is formed due to the condensation of vapor from water (hence the name). Such a unit perfectly warms up the room, and thanks to a well-designed design, you can economically use all the available functionality. The principle of operation is quite simple. Water is heated under the influence of gas and further heated by a gas burner.This type of boilers is more expensive than standard ones, but it saves the lion's share of fuel.

It is extremely rare that gas boilers can be found in apartments. This is due to the fact that the installation of such a unit is quite complicated and time-consuming. However, sometimes such a boiler is simply necessary.

In this case, you will have to take care of many factors in order to reduce gas consumption:

1. The façade needs to be well insulated. This is a necessary measure in order to reduce consumption.
2. Carefully study the characteristics of the boilers. Choose the option that will be the most economical.
3. In order not to "warm the street" you should take care of installing plastic windows with double or triple glazing.

With good insulation of the apartment, you can reduce fuel consumption by more than 50%.

More often, boilers are found in private houses or premises. In this case, it can be connected to a heating system or a swimming pool.

However, to save gas, you have to follow some rules even in a private house:

1. Install counter. It is not always possible to independently control the fuel consumption in the boiler, so you can install a meter that will record the consumption. Initially, the readings will seem very conditional, since fuel consumption in a private house directly depends on weather conditions. After a year, you will be able to make the most accurate calculations on fuel economy. If you see that the consumption is too high, then you will have to take care of the insulation of the room.
2. Warm up the room. Try to cover as much as possible any openings in the walls that open to the outside. Spend a lot of your time on the insulation of the attic, roof, any technical premises, cellar, veranda.In short, you need to take care of warming the most “vulnerable” places in the house - places that release heat.

Consider one of the options for installing a gas boiler in a private house:

1. "Warm floor" with a built-in cast-iron heat exchanger with efficient settings and suitable power.
2. The boiler should be installed with indirect heating and a sufficient amount of water in the tank.
3. Install the programmer and thermostats. This will help keep all equipment under control depending on the schedule and time of day.

Do not be too lazy to study the list of the main reasons that affect fuel consumption. Often it depends on the power of the equipment. Never think that you can reduce fuel consumption by using incomplete functionality. This is not true!

Before calculating the costs, you must first determine the needs of the heating system that you have installed.

To do this, you do not need to be a great mathematician and know all the most complex formulas. Let's use the simplest proportion:

10 sq.m = 1 kW. During the frost period, add about 15-25%, that is, somewhere around 1.2 kW.

Let's see how this is applied in practice:

1. We calculate the exact area of ​​the rooms with the heating system connected. Corridors and technical rooms are also worth considering.
2. The resulting number is divided by 10 and multiplied by 1.2. This is the maximum possible energy consumption of the heating system. Divide the result by 10 and multiply by 1.2. We round the figure to the nearest to the power of the devices ai and we get the most profitable option for us.

Collection of initial data for calculation

For calculations, the following information about the building will be needed:

S is the area of ​​the heated room.

W_oud - specific power. This indicator shows how much heat energy is needed per 1 m2 in 1 hour. Depending on local environmental conditions, the following values ​​can be taken:

• for the central part of Russia: 120 - 150 W / m2;
• for the southern regions: 70-90 W / m2;
• for northern regions: 150-200 W/m2.

W_oud - the theoretical value is used mainly for very rough calculations, because it does not reflect the real heat loss of the building. Does not take into account the area of ​​glazing, the number of doors, the material of the outer walls, the height of the ceilings.

Accurate heat engineering calculation is carried out using specialized programs, taking into account many factors. For our purposes, such a calculation is not needed;

Values ​​to be included in the calculations:

R is the heat transfer resistance or heat resistance coefficient. This is the ratio of the temperature difference along the edges of the building envelope to the heat flux passing through this structure. It has the dimension m2×⁰С/W.

In fact, everything is simple - R expresses the ability of the material to retain heat.

Q is a value showing the amount of heat flow passing through 1 m2 of surface at a temperature difference of 1⁰С per 1 hour. That is, it shows how much heat energy is lost by 1 m2 of the building envelope per hour with a temperature drop of 1 degree. Has the dimension W/m2×h. For the calculations given here, there is no difference between kelvins and degrees Celsius, since it is not the absolute temperature that matters, but only the difference.

Q_common- the amount of heat flow passing through the area S of the building envelope per hour. It has the unit W/h.

P is the power of the heating boiler.It is calculated as the required maximum power of the heating equipment at the maximum temperature difference between the outdoor and indoor air. In other words, sufficient boiler power to heat the building in the coldest season. It has the unit W/h.

Efficiency - the efficiency of a heating boiler, a dimensionless value showing the ratio of energy received to energy consumed. In the documentation for the equipment, it is usually given as a percentage of 100, for example, 99%. In calculations, a value from 1 i.e. 0.99.

∆T - shows the temperature difference on both sides of the building envelope. To make it clearer how the difference is correctly calculated, see an example. If outside: -30C, and inside + 22C⁰, then

∆T = 22-(-30)=52С⁰

Or, too, but in kelvins:

∆T = 293 - 243 = 52K

That is, the difference will always be the same for degrees and kelvins, so reference data in kelvins can be used for calculations without correction.

d is the thickness of the building envelope in meters.

k is the coefficient of thermal conductivity of the building envelope material, which is taken from reference books or SNiP II-3-79 "Construction Heat Engineering" (SNiP - building codes and rules). It has the dimension W/m×K or W/m×⁰С.

The following list of formulas shows the relationship of quantities:

• R=d/k
• R= ∆T/Q
• Q = ∆T/R
• Q_common = Q×S
• P=Q_common / efficiency

For multilayer structures, the heat transfer resistance R is calculated for each structure separately and then summed up.

Sometimes the calculation of multilayer structures can be too cumbersome, for example, when calculating the heat loss of a double-glazed window.

What you need to consider when calculating the heat transfer resistance for windows:

• glass thickness;
• the number of glasses and air gaps between them;
• type of gas between panes: inert or air;
• the presence of a heat-insulating coating of window glass.

However, you can find ready-made values ​​\u200b\u200bfor the entire structure either from the manufacturer or in the directory, at the end of this article there is a table for double-glazed windows of a common design.

Home heating with electricity

Nowadays, heating the house with electricity is becoming more and more popular. Most often, this method is used in places where there is no central gas pipeline.

Despite the fact that electricity is still more expensive than gas, knowing the features of installing equipment for electric heating at home can save a lot.

Let's try to calculate the energy consumption for heating a house of 100 m² using a specific example.

Before starting heating installation

Practice shows that such an alternative source of heating for housing is the future.

Before you start installing such a heating system in the house, you need to decide:

• which method is best for you,
• how much money are you willing to spend on this venture, so that later you can save,
• how powerful the source of electricity is in the building.

It is these factors that should influence the choice of a home heating system.

Practical example

Let's give a practical example of consumption electricity for home heating 100 m².

1. The efficiency of an electric boiler is basically 100%. For 1 kW of heat energy, 1.03 kW of electricity is spent.
2. Take for example the electricity tariff for heating a house 4 rubles.
3. The coefficient of heat consumption for heating 10 m² is 1 kW, for this example, 10 kW of heat per 100 m² area.
4. The average daily rate of energy consumption is 1 kW / hour, from which it follows: 10 kW x 24 hours = 240 kW.
5. We take as a basis the uninterrupted operation of the boiler, that is, we consider for a month to the maximum: 240 x 30 = 7200 kW.

These are the maximum calculations, taking into account the constant operation of the boiler, which does not happen in practice. After all, heating the house to a certain point, it turns off and does not work, so energy consumption does not go. Therefore, the resulting value can be safely divided by 2 = 14,400 rubles / month.

Types of boilers

For heating a private house, single-phase and three-phase boilers are most often used. Their choice is a responsible matter, since your electricity costs depend on it.

After the installation of boiler equipment, the load on the power lines increases significantly. Therefore, first of all, you need to contact the company that supplies electricity to your site and find out the maximum current strength.

When calculating kilowatts of energy, take into account the presence of working electrical appliances in the house

Single-phase electric boiler for home heating

A single-phase boiler operates on a 220 V network. It is connected without difficulty, because the boiler power is in the range of 6 - 12 kW, so they are most suitable for installation in a house no more than 100 m².

The characteristics of a single-phase boiler are as follows:

• works like any simple electrical appliance;
• a 220V network is required;
• installation without permits.

Three-phase electric boiler for heating a private house.

Such a boiler has more power than a single-phase one, so it can be installed in houses larger than 100 m².

To operate the boiler, a 380 V network is required.

Characteristics of a three-phase boiler:

• power. For 10 m² you need 1 kW + 10-20% (as a reserve);
• operation from three phases 380 V, an increase in the power supply of current in the room is required;
• for installation, you need to take permission from the energy supply in order to increase the power used and install the boiler.