Electric heating convectors: finding the point of optimal use. Heating a country house with electric convectors - theory, experience of the portal craftsmen Heating electric convectors

Electric heating convectors: finding the point of optimal use. Heating a country house with electric convectors - theory, experience of the portal craftsmen Heating electric convectors

Heating convectors today are recognized as one of the most common types of heating devices, the use of which is recommended by experts for basic and also additional heating premises.

Wall-mounted steel water heating convectors Universal

Steel wall-mounted heating convectors with a safety housing of the “Universal” type KSK 20 are used for two-pipe and single pipe systems water heating of premises and buildings itself for various purposes with maximum permissible temperature coolant at 150 0 C and overpressure up to 1 MPa.

Heating devices successfully passed tests at the Plumbing Research Institute Russian Federation by determining the nominal heat flow, tightness, strength, and hydraulic resistance. Based on test results, they are recommended for use.

Heating convectors have been certified and comply with TU 4935-001-42227798-03 and GOST 20849-94, as well as state sanitary and epidemiological rules and regulations.

Convectors have simple design: heating element and casing with air valve, which is necessary to regulate the heat flow.

Water convectors of shallow depth Universal KSK 20M consist of one heating element, medium depth - KSK 20S of 2 heating elements, which are connected to each other by a plate and a roll.

There are two options for heating elements of convectors that are produced today: pass-through and end. The pass-through heating convector is equipped with straight pipes of the heating element, as well as connecting pipes on them on both sides. For a medium-depth pass-through convector, there are four heating element pipes, which are connected in pairs using junction boxes. At the end convector, the connecting pipes are located on one side and, thus, the coolant passes in turn through all the pipes of the heating element, connected to each other by rollers.

Depending on the location of the connecting pipes can be right-handed (nozzles on the right side) or left-handed (nozzles on the left side).

The casings of the convectors are standard, that is, they are made according to the overall dimensions and connecting dimensions and differ only in depth - 95 mm for the “M” model and 156 mm for the “C” model. The height of the casing is unified - 400 mm.

To reduce injury and comfort, the housings are designed without sharp corners and the air valve control handles are completely recessed.

For automatic maintenance in the room at a given temperature along with basic models For convectors, our company offers convectors of shallow depth “Universal” KSK 20MT and medium depth - KSK 20ST, which instead of an “air” valve are equipped with built-in thermostats.

Thermostats are installed on the heating element of the heating convector instead of the roller and serve to regulate the heat flow through the coolant (water), providing high level temperature comfort in rooms and optimal energy consumption.

Our company also offers convectors Universal KSK 20 with the device individual accounting heat INDIV 5R to save consumer energy costs.

Floor-standing steel heating convectors KPVK and KPNK

High floor heating convectors type KPVK - 20 and low convectors type KPNK - 20 according to GOST 20849 are intended for water heating systems of residential, public and industrial buildings with coolant temperature up to 150 0 C and excess pressure up to 1 MPa with the possibility of installing devices under windows with low window sills.

Convectors KPVK and KPNK consist of a heating element, support and casing.

The SOTIS company offers buy heating convectors wholesale and retail: wall convectors “Universal” KSK 20 and floor heating convectors KPVK and KPNK. The convectors supplied by our company not only meet the requirements of projects capital construction, but also easily fit into almost any interior thanks to modern design, in various ways installation and a large number standard sizes.

Prices for heating convectors from the SOTIS company

We invite you to familiarize yourself with our prices for the Universal convectors KSK 20, KPVK and KPNK:

Product photo Name of product Price, rub.

Convector "Universal" KSK-20-M

Convector "Universal" KSK-20-M on thread

from 1052,58

Convector "Universal" KSK-20-S

Convector "Universal" KSK-20-S on thread

from 2236,69

Convector "Universal" KSK-20-MT-1

Convector "Universal" KSK-20-MT-2

from 1414,31

Convector "Universal" KSK-20-ST-1

Convector "Universal" KSK-20-ST-2

from 2299,05

Convector "Universal" KSK-20-M MINI

Convector "Universal" KSK-20-M MINI on thread

Convector "Universal" KSK-20-S MINI on thread

from 1288,86

One of the options for organizing a heating system is to use autonomous sources heat not connected by a common line. If previously these were mainly oil radiators, today electric convectors are becoming more common. Among FORUMHOUSE members This method is also quite popular not only at dachas, where people visit on weekends, but also in permanent residences.

What are convectors

Unlike oil radiators and similar devices, convectors heat the air not only directly around them, but throughout the entire room due to convection - the cyclical movement of cold and warm air masses. Cold air from below enters the device through the lower grille, heats up passing through the heating element, exits through the upper grille and rises to the ceiling, cools down, falls again and enters the heater. Some models also have a fan that forcibly accelerates the circulation process.

Device

The convector is based on a tubular, needle or monolithic type, located at the bottom of the aluminum or steel housing. Despite the fact that the heating element itself can heat up above 100⁰ C, Maximum temperature case 60⁰С - hot, but does not threaten burns. This feature significantly expands the scope of application: even walls made of timber or logs are not an obstacle to installing the heater. The device is configured and controlled using a mechanical regulator or electronic display, mechanical option less reliable, but cheaper, electronics more expensive, but more advanced.

Convectors are characterized by a maximum coefficient useful action(about 100%), which is explained by direct heating of the air without intermediate energy consumption for heating the coolant.

alex157 Member FORUMHOUSE

All devices have efficiency, since you have decided on electric heating, then take into account the losses:

  • Electric boiler -> coolant -> wiring -> radiators -> air heating.
  • Oil radiator-> coolant -> radiator -> air heating.
  • Convector -> air heating.

The choice is yours.

The power of the devices varies over a wide range, which allows you to select a suitable unit based on the capabilities of the network and the square footage or volume of the room. As in the situation with any other heat sources, it is advisable to get 1 kW of heat per 10 m², provided that the house is well insulated.

Varieties

Another advantage of the devices is their versatility - they can be wall-mounted, floor-mounted or even built-in. The latter are less popular and are most often used to create a thermal curtain over the entrance or panoramic windows. Some models of wall-mounted convectors can function as floor-mounted ones if you purchase and install additional legs. They also produce miniature baseboard heaters, the height of which is around 15 cm. Regardless of the type, all modern convectors have a presentable appearance, there are even original, black devices, but the bulk are still white. The most common form is a thin, smooth rectangular panel with straight, beveled or rounded corners. The location of the mechanical relay or display varies by manufacturer.

Installation and operation

Consumers are attracted not only by high efficiency, big choice modifications and decorativeness, but also ease of installation and maintenance. Even wall-mounted appliances do not require wall slitting and global transformations, but are mounted on ordinary brackets; floor-mounted ones can be moved throughout the house.

AndreyZabolotky FORUMHOUSE Member

If necessary, you can mount it 10 cm from the floor. It’s just that the lower you hang the convector, the greater the discrepancy between the readings on the convector thermostat and the actual room temperature. The only thing is that there is no need to install it “in the floor” - the air intake from the convectors is implemented from below.

Despite the fact that the power is selected based on the quadrature (in country houses– from volume), it is more efficient to use several devices to cover the needs of the room.

AndreyZabolotky

For a room of 20 m², two kilowatt convectors will be more effective - they will work in pairs, and each will be temperature-oriented environment in your installation area.

As for control, it’s not a problem to set up two or three convectors by periodically tightening the regulator or setting a program on the display, but when there are more than a dozen of them, different rooms or even on different floors, it is advisable to consider group control.

EnstoBT FORUMHOUSE Member

If you need regular group control, then you can connect the convector power line through a contactor of the appropriate rating, a 220 V coil, supplying it with control voltage from a thermostat with the necessary sensors and the necessary control. In the rooms, convectors will maintain the temperature in accordance with the setting on their thermostat.

Since suburban electrical networks are even less likely than urban ones to boast a stable voltage, and convectors, especially those with electronic “filling”, for normal operation you need 220 V, and not as much as the socket will squeeze out, it’s worth connecting them through stabilizers.

Alexey Glukhov Member of FORUMHOUSE

A constant problem is voltage drop in winter, in frosty conditions, when everyone turns on powerful boilers, dropped below 100 V. Even if there is 150-160 V in the outlet, the convector begins to work worse, the wire and plug get very hot. It turns off less often because it is more difficult to warm up the air with a reduced voltage, that is, it threshes almost constantly. That is why I installed three stabilizers - one per phase, operating from 90 V.

Some models have built-in stabilizers, but they cost more than installation external device to a budget device.

Flaws

Like all other heating systems, heating with convectors has its drawbacks. The fact that heating with electricity is one of the most expensive methods has been discussed more than once, but the real costs of heating will depend not only on the price of 1 kW of heat. Considering that convectors do not require the creation of piping, like an electric or solid fuel boiler, the costs of their purchase and installation will be significantly lower. In a well-insulated house, even heating with convectors will not require exorbitant costs, and if there are drafts, you can actually “fly out of the pipe” with gas. To verify the possibility or impossibility of heating with convectors, it is worth making a heat calculation based on your specific conditions, as well as estimating all the costs of creating various systems.

Heating systems are used for housing, differing in the energy carrier used and design. Heating systems for private homes in the form of electric convectors are also popular. How are they different from other heating devices?

Heating is the physical process of transferring heat from a hot environment - the heater material - to the cold internal air in a room. Heat transfer occurs in several ways: radiation, conduction and convection. In building heating systems, convection and radiation are relevant, since thermal conductivity in pure form occurs only upon contact solids between themselves.

With convection, heat is transferred by moving particles of a substance; it occurs when warm flows of liquid or gas move into a cold environment. Radiation - heat transfer is present during the operation of all types of heating (the larger their area, the more efficiently they radiate heat), but reaches a maximum value in infrared heaters. In other systems, heat transfer occurs by convection and radiation in varying proportions. Since in electric convectors the main heat transfer occurs through the phenomenon of convection, and radiation does not play a role significant role, then they got their name in tune with the process.

Models and varieties of electric convectors for heating

Electric convectors for heating a private home are produced by many companies. They differ not only in design, but also in the principle of regulation, security and power of heating elements. In general, any electric convector, both for a private home and for other premises, consists of several elements:

  • frame;
  • heating elements;
  • protection and regulation devices;
  • air intake and supply grilles.

The main difference is the use of different heating elements and regulators.

There are several types of electric convectors. Depending on the type of thermostat used, they are:

  • with mechanical thermostat;
  • with electronic thermostat.

By type of heating element:

  • with open heating element;
  • with protected heating element.

Depending on the thermostat used, the accuracy of temperature maintenance varies. Electronic ones are more accurate, but more expensive. In addition, they have a larger number of settings and additional functions (for example, a timer).

An open heating element is a needle heater or spiral in direct contact with air. It must not be used when high humidity and the risk of droplets. In a closed heating element, the conductor is protected by a layer of dielectric and placed in a radiator (aluminum is most often used).

Comfort when using electric convectors

How safe and effective is it to use electric convectors for heating in a private home? A very common misconception among users is the belief that convectors “burn oxygen” during their operation. This is wrong. Only devices with open flame: fireplaces, wood stoves, gas convectors and fan heaters. In this case, oxygen from the air is used for a chemical oxidation reaction.

When heating the heating element of a convector or other electrical appliance chemical reaction does not occur (for example, the filament in an incandescent lamp “burns” even in a vacuum and inert gas). So the appearance of “safe” electric convectors that do not consume oxygen is an invention of marketers.

The story is approximately the same with the confidence of some users that electric heaters dry the air, unlike other devices. This is also not entirely true. Relative air humidity does decrease when heated, but it is not affected in any way by the type of convector. Both when using a water radiator and in the case of electric heater relative humidity will decrease equally as equal temperatures air.

Choosing a convector for a private home

To select in a private house model of an electric convector, we determine the following characteristics:

  • heater power;
  • heating element type;
  • working conditions;
  • installation location.

The remaining characteristics of the device depend on your personal preferences (case design, type of mounting, etc.).

First of all, we calculate the required power of the convector. For her precise definition find heat loss at home. This takes into account the location of the building, the material of walls and windows, climate zone and several other factors. But there is an easier and faster option. There is no need to study textbooks on thermal physics for it - calculating power using a simplified formula. The accuracy of the method allows you to determine the approximate power of heating devices for rooms.

For a private house, the value of heat loss in watts is determined by the formula:

Q = a ⋅ Vin ⋅ q(tin – tn), Where:

  • a = 0.54 + 22/(tв – tн) – coefficient for taking into account the climatic region;
  • q = 1.16(((1+2⋅d) ⋅ A + Sin)/Vin) – specific characteristic heat loss (W/M3 ⋅ K);
  • d – glazing coefficient, take 0.2–0.3;
  • Vzd – volume of the building limited by enclosing structures;
  • Szd – area of ​​the building in plan;
  • A – area of ​​external walls;
  • tв, tн – design temperatures inside and outside the building.

The power of heating devices is taken to be no less than the total amount of heat loss.

To select an electric convector model for each room, we divide the total power by the sum of the areas of the rooms in a private house. Based on the obtained specific value, it is easy to find a model of the required heat output for each room. When calculating, keep in mind that corner rooms and rooms with increased area of ​​external walls and windows require 20-30% more energy consumption.

Sometimes a very simple calculation method is used - 1 kW heating power per 10m2 of space, but this method is completely inaccurate and is more applicable to rooms in apartments.

The type of heating element matters only when installing the convector in wet rooms. In this case, we choose a convector with a closed heating element and a protection class of at least IP24. All convectors are equipped with an overheating sensor and automatic protection.

A separate convector is installed in each room.

Features of installation and operation

Electric convectors for heating a private house need correct installation. After choosing a model, we decide on the installation location. Heating devices work more efficiently when installed under a window, since the flow of air rising from them warm air heats the glass and prevents condensation from accumulating on it. If there is no window in the room, then it is better to hang the convector on the outside wall.

When installing, please take into account minimum distances to building structures and furniture. You will find the exact restrictions in the instructions for the specific model. Approximately the following distances should be adhered to:

  • from the floor to the bottom of the device at least 8 cm;
  • to the side surfaces from 5 cm;
  • to the window sill 12–15 cm;
  • from the front panel of the electric convector to the furniture is at least 50 cm.

During installation, all installation standards are taken into account electrical appliances. The heating system is connected to the power supply panel via separate wiring through circuit breakers.

Electric convectors are often used as main or additional heating devices, especially in non-gasified populated areas. Using these devices, you can set the desired temperature in your house, apartment or country house without much expense or hassle. What you need to consider when choosing an electric convector will be discussed in this article.

Electric for heating: how to choose a good unit

Design, advantages and disadvantages of electric convectors

The operating principle of electric convectors is based on the physical process of the same name - air convection. This process involves the ability of warm air to rise upward, displacing colder air masses. To move air, it does not require the installation of a fan or other mechanism; this is completely done.

The convector device is extremely simple: metal case with holes, a heating element and a control unit installed inside. Cold air is taken in through holes in the bottom of the case, and released through holes in the top of the front panel. There are models equipped with a switchable fan, which is designed to quickly warm up the room and accelerate the convection of air flows.

Electric convectors have a whole list of advantages:

  • rapid heating of the room;
  • high efficiency – up to 96%;
  • safety in use;
  • silent operation;
  • high level of automation;
  • large selection of models various sizes and power;
  • long service life.

The disadvantages of electric convectors include high cost electricity compared to other coolants and certain power requirements for the home electrical network.

The choice of a convector for heating a cottage or apartment is carried out taking into account several criteria:

  • thermal and electrical power;
  • installation method;
  • shape and dimensions of the body;
  • heater type;
  • type of temperature control in the control unit;
  • availability of necessary protective functions;
  • degree of automation.

Some characteristics of convectors, such as power and installation method, directly depend on the size and type of the heated room. The rest affect the reliability, durability and ease of use of the device, as well as its safety.

Electric convector power

The efficiency of electric convectors is quite high, it reaches 96%, so the value of thermal power is almost equal to the value of electrical power. These parameters are measured in kilowatts. The calculation of the required power is carried out for each room separately, taking into account the area of ​​the room and the height of the ceilings.

When determining the power of a convector used as the main heating device for rooms with different heights ceiling, you can use the data from Table 1.

Table 1. Determination of convector power depending on ceiling height.

Ceiling height, mConvector power per 1 sq. m., kW
2,5-2,7 0,1
2,7-3,0 0,11
3,0-3,3 0,12
3,3-3,5 0,13
3,5-4,0 0,15

For poorly insulated buildings and premises with two or more external walls, this indicator is increased by a factor of 1.3-1.5.

Calculation example: for a corner room with an area of ​​18 m2 with a ceiling height of 3.0 m, a convector with a thermal power of 18·0.11·1.3=2.57 kW is required. The resulting value is rounded to the nearest standard power. In this case, it is better to give preference to a more powerful device, if the parameters of the home electrical network allow.

If the convector is intended for additional heating of rooms with stove or water heating, it is enough to install the device with a power of 40-60% of the calculated one.

Note! IN corner rooms with two or more windows, it is better to use several convectors with the required total power.

Installation method

According to the type of design and installation, electric convectors are:

  • wall-mounted, they are attached to the wall with brackets;
  • floor, on legs or wheels;
  • universal– the delivery set includes both brackets and legs.

Wall brackets are convenient when using convectors as the only heating source or in combination with stove heating. In this case, the convector is placed under the window sill, like. The heat emanating from it not only warms the main volume of air, but also creates thermal curtain near the window, reducing heat loss. The wiring of wall-mounted convectors can be done hidden, which improves their appearance.

Floor convectors are more often used for temporary heating of a room: in the country or during severe frosts in addition to radiator heating. Floor-standing models are convenient due to their mobility, but they take away usable area rooms and sometimes interfere with free movement.

The installation method for universal convectors is chosen depending on their use and the characteristics of the room. There are also in-floor convectors that are installed at the stage of pouring the subfloor. It is built into the floor with a grille in the upper part, through which cold air is taken in and heated air comes out.

Prices for electric convectors

electric convectors

Case shape and dimensions

The shape of the convector mainly determines the ease of installation, as well as the appearance of the device. The shape can be square, rectangular or round. Round models are often equipped with a fan.

Geometric dimensions affect thermal characteristics convector. The rate of supply of warm air into the room depends on the height of the device; The optimal height is about 50 cm. In some cases, it is necessary to give preference to lower models, for example, when installing a convector under a panoramic window.

The thickness of the housing affects the heat transfer: the larger it is, the higher this parameter, as well as the efficiency of the convector. Wall and universal models usually thinner, floor ones can have a thickness of 10-15 cm.

Note! When choosing the height of a wall convector installed under a window, it is important to consider the minimum permissible distances to the floor and window sill. They are indicated in the documentation for the device.

Heating element type

An important characteristic that can be checked with the seller or looked at in the passport for the convector is the type of heating element; he can be:

  • needle;
  • tubular;
  • monolithic.

Needle heaters consist of a steel plate with a zigzag thread of nickel wire. Electrical varnish is used as electrical insulation on nickel wire. Heating of the nickel filament occurs very quickly, but convection in such devices is not high and is determined only by the design of the housing.

This type of heater is the most unreliable and short-lived due to the fragility of the nickel thread and rapid overheating. Such convectors cannot be used in rooms with high humidity and possible splashes or drops of water. The only advantage is low price, therefore, you can buy such convectors only in case of short-term use with constant monitoring.

Tubular heater is a sealed steel tube in which the nichrome wire. It is isolated from the tube by a layer of ceramic backfill. Aluminum fins are soldered onto the tube, improving heat transfer and air convection.

Convectors with heating elements are durable and reliable, but have one drawback: in the first minutes after switching on, they crackle due to the difference in thermal expansion of the heater materials. What's happened “, You can look in our article.

Monolithic heaters– the most reliable and silent. They are a ribbed plate made from a single piece of material, and therefore have high strength and durability. The price of such convectors is usually higher than their analogues; it is advisable to buy them for permanent use.

Temperature controller type

The regulator in the control unit is designed to automatically maintain the room temperature. Based on the readings of the sensor installed in the lower part of the convector body, the regulator turns the heating element on and off when the set temperature is reached.

There are two types of temperature controllers:

  • mechanical;
  • electronic.

Mechanical regulator made on the basis of a step switch, it has the most simple design. The disadvantage of mechanical control is low accuracy with an error of 1-3 degrees, as well as low reliability. When the mechanically controlled heater is turned on, a distinct click of the relay is heard.

The advantages of this type of switches include resistance to voltage surges in the network. If a mechanical regulator fails and fails, it can be quickly and inexpensively replaced.

Electronic control unit– more complex device, allowing you to set the temperature with an accuracy of 0.1 degrees, as well as different modes use: night, day, plus temperature maintenance mode. The heater switches on and off silently. Electronic regulators are often equipped with an LCD display that displays the room temperature, as well as mode parameters when programming it.

Electronic regulators are generally more reliable, but they fail when the voltage drops by 15-20% of the nominal value. Repairing and replacing an electronic unit is expensive, so it is better to install the device together with a voltage stabilizer or a protective voltage relay.

Note! For heating rustic or country house It is better to choose models with a mechanical regulator, since in rural networks voltage drops occur quite often.

Protective functions

Almost all modern convectors are equipped with built-in overheating protection. It is triggered when the temperature controller fails or when the convection openings in the housing are closed, for example, when drying clothes on a convector. The protection turns off the heater when it reaches a temperature that is dangerous for the insulation of the device or people.

Protection against splashing water is provided by the design of the housing, the size and location of the holes. It can be determined by the IP index indicated in the passport. For bathroom or kitchen minimum value this index should be 24.

Many floor-standing and universal convector models are also equipped with tip-over protection. If the convector falls and changes its position to horizontal, the protection ensures quick shutdown of the heater.

Like all other devices household use, convectors must have a degree of protection against damage electric shock no less than "2". This means that the power cord and plug of the device have a built-in ground, so the metal case does not need a separate ground.

Note! The convector only needs to be connected to a socket with a grounding conductor.

Degree of automation and additional functions

Convectors with an electronic control unit can be equipped with additional functions:

  • “restart” – the ability of the regulator to remember the last switched on mode and reproduce it even after the device is completely de-energized;
  • “anti-freeze” – when the air temperature in the room reaches +5°C, the convector will automatically turn on and maintain it at this level;
  • “ionization” is a relatively new function that allows you to clean and improve the air in the room; in most convectors it works even when the heater is turned off;
  • control panel - allows you to turn the device on and off, as well as change the mode remotely.

The choice of feature set depends on your needs and financial capabilities. At the same time, you should not overpay for additional functions that are unlikely to be useful to you. For example, the “anti-freeze” mode is relevant for a dacha or country house with periodic residence, in a city apartment with central heating it's practically useless.

Wiring Requirements

The standard power of convectors, depending on the model, can vary from 0.5 to 3 kW. Electrical wiring and protective equipment in houses old building unable to bear maximum power device.

In this case, you can focus on the following conditions:

  • a convector with a power of up to 2.0 kW can be connected to any standard home wiring with an input circuit breaker rated at least 10 A;
  • for a device with a power of 2.0-2.5 kW, electrical wiring with a cross-section of 2.5 mm 2 for aluminum or 1.5 mm 2 for copper, a 16 A socket and a rating of an input circuit breaker of at least 16 A are required;
  • a convector with a power higher than 2.5 kW must be connected with a separate cable with a cross-section of at least 2.5 mm 2 for copper through a separate circuit breaker with a nominal value of 16 A.

Important! You cannot use extension cords of dubious quality to connect convectors; they often use wires of small cross-section, which can melt under load.

How to choose a convector - step-by-step instructions

Choosing a convector is not the most difficult task, but to ensure it is efficient and safe work It is important to follow the recommendations of experts.

Step 1. Determine why you need a convector: for constant full heating or as a source of additional heating, and calculate the power of the device accordingly.

Step 2. Determine the installation location and required mobility. Wall-mounted convectors are usually installed under a window or on a wall that has direct contact with the street. Floor convectors can be installed in any place where there is an outlet designed for the rated current of the device.

Step 3. For wall models it is necessary to measure the distance from the floor to the window sill and select the height of the device in order to ensure required distances for air intake from below the convector.

Step 4. When purchasing, it is important to clarify the type of heater. For wet rooms, you can use convectors with heating elements or a monolithic heater; models with nickel filament are not suitable for this.

Step 5. Select the type of control knob. For a country house and dacha, models with mechanical controls are more suitable, for a city apartment - with an electronic unit. If you have a voltage stabilizer, you can use electronic control in the country.

Step 6. Define a list necessary functions, as well as the shape of the device, its color and other external characteristics.

Note! When choosing, it is also important to take into account the manufacturer, its reputation and availability service centers– in case of minor malfunctions, it will be easier for you to find components and parts for repair.

Video - Choosing an electric convector

Electric convectors are quite common devices. They are characterized by high efficiency and miniature size, making it possible to heat rooms for various purposes. When using electric convectors to heat a private home, the price of heating can be quite high. Is it worth using this heating equipment at all and how justified is it when heating private households?

In our review article we will cover:

  • about the costs of electric heating using electric convector heaters;
  • on calculating the number and power of convectors for a particular area;
  • about the choice of electric convectors and adjustment of heating costs.

After reading this material, you will get an idea of ​​the feasibility of operating electric heating using convector heaters.

Economic benefits from using electric convectors

Using electric convectors to heat a private home, the price of heating will consist of the initial costs of purchasing the equipment and the cost of electricity required to operate the equipment. Can electric heating be called profitable? Compared to classic heating systems with electric boilers, heating radiators and pipes connecting it all, the benefits are obvious:

  • no need to buy an expensive boiler;
  • no need to buy temperature control equipment;
  • there is no need to buy and lay pipes.

By choosing heating with such devices, you save yourself from purchasing all this expensive equipment and laying pipes.

Thus, the main benefit of using convectors is the absence of the need to purchase additional equipment. Considering the high prices for the same batteries, where one section costs from 500 rubles, the savings will be decent.

Another factor that makes electric heating of a private house with convectors more profitable is the lack of costs for the work of specialists. Laying pipes, connecting radiators, installation and configuration heating boiler- all this requires serious costs. As for the installation of electric convectors, in this case the costs will be minimal, since installation requires only suitable fasteners.

What else are the benefits of heating? electric convectors? Yes, at least with less heat loss - it is lost in electric boilers and pipes. In the case of electric heaters, there are no special losses, since the heating elements are located directly in the heating equipment. In addition, convection reduces required power for heating 1 sq. m - many manufacturers talk about this.

Despite the fact that manufacturers of electric convectors give different recommendations for calculating power, for the Russian climate it is better to use the standard calculation formula based on 100 W per 1 sq. m.

Reviews about heating a private house with convectors indicate that such heating has high efficiency and comparatively high speed warming up. The set temperature is set in the rooms 1.5-2 hours after turning on the equipment electrical network. For more economical energy consumption, it is advisable to buy electric convectors for heating a private house with electronically controlled.

In terms of heating rooms with high ceilings electric heaters they fold a little. In this case it is better to use the auxiliary heating equipment, For example, infrared heaters– they are well suited for heating high rooms and spaces.

We calculate the number of convectors

By placing appliances under windows, you prevent cold air from entering from them.

Are you planning to buy convectors for heating your home, but can’t figure out how many there are? In many cases, one heater is enough to heat one room. For example, for a room of 15 square meters. m in a well-insulated house, you should purchase a model with a power of 1000 W (as manufacturers advise, but we remember the need for a reserve and climatic features our country). Therefore, the recommended power will be 1500 W.

The optimal place to place a convector is under a window from which the cold comes. In order to protect yourself from the cold, we place devices under the windows. Accordingly, if there are three windows in a given room, we hang one under each heating device. In total, we will need three electric convectors with a power of 500 W each. The area of ​​the room is 25 square meters. m, but it only has two windows? In this case, two convectors with a power of 1 and 1.5 kW are needed.

For more uniform heating of large rooms, you can increase the number of convectors by reducing their power - for example, in a room of 25 square meters. m, you can place two 1 kW convectors under the windows, and a third heater can be placed on one of the walls.

We calculate energy costs

Now we will try to calculate the power of the equipment necessary to heat the rooms. In our calculations we will use the standard formula, based on which for heating 1 sq. m we need 100 W of thermal energy. IN northern regions this figure increases to 150 W, and in the south it drops to 80 (it is best to focus on 100 W or check this figure with heating specialists in your region).

Remember a simple rule for calculating the power of a convector: multiplying the area of ​​the room by 100 you get the power required for heating it in W.

Let's say we need to heat a house measuring 50 square meters. m of living space. For this we will need electric convectors with a total power of 5 kW. If the devices operate around the clock, then daily consumption will be 120 kW. Based average cost 1 kW of energy costs 4 rubles (in different regions differently), daily costs will be 480 rubles, and monthly costs will be 14,880 rubles (for months with 31 days).

But convectors do not operate around the clock - they periodically turn on and off, maintaining the set temperature. Therefore, we can safely reduce the amount received by half - it will be 7,440 rubles. It should also be taken into account that winters can be warm, with big amount days with positive temperatures. In this case, heating costs will be lower. Electronic control, which provides more accurate support for the set temperature, will also help reduce costs.

How to reduce heating costs

We have written more than once that reducing heat losses helps make electric heating cheaper. How to reduce heating costs? Here are the basic steps to help reduce your energy costs:

The main indicators of heat loss in private houses. If you insulate the walls, floor and attic, and also install good windows and doors, you will save significantly on heating.

  • insulation of doors - if your house has uninsulated doors, feel free to throw them in the trash. Spend some money and buy a normal door with good thermal insulation;
  • triple glazing will help reduce heat losses by about 10%. Heat loss is also reduced by reducing the area window openings. This isn't always possible, but you can simply brick up a couple of unnecessary windows;
  • insulating the attic will provide another 5-10 percent savings;
  • creating additional thermal insulation of walls - for example, by lining a house with cement block brick and mineral wool, you will get significant savings.

Some of these tips are easiest to implement at the stage of building a home - do not create too wide window openings and once again review the number of windows, provide insulation with mineral wool or other thermal insulation, think about insulating the attic, immediately order triple energy-saving double-glazed windows.

Which convector to choose for a private home

When choosing a heater for a private home, you need to consider:

  • on equipment power;
  • on the brand;
  • on the type of control;
  • for additional functions;
  • for design features.

Electronic control of the connector will also help you save money, and bullets remote control will add ease of use.

We have already talked about equipment power and reducing heat losses. Concerning brands, then we recommend buying products famous brands– it’s better to overpay a little than to suffer from constantly breaking convectors from little-known manufacturers.

It is also advisable to choose electric convectors with electronic control. Mechanical control is not particularly accurate, which entails additional heating costs. As for electronics, it ensures compliance with the specified temperature regime with an accuracy of 0.5 degrees. Thanks to this, energy costs will be reduced.

Additional functions include timers, remote controls, a built-in humidifier, work according to a given program, and much more. All these options slightly increase the cost of the equipment, but provide comfort during its operation. If you plan to heat country house, we recommend paying attention to the presence of frost protection - this function will save energy on those days when you are not at home (for example, you live outside the city only on weekends).

Another recommendation - buy convectors with the ability floor installation. This way you can adjust the heating zone on particularly cold days with severe frosts. For rooms with designer finishing We recommend purchasing devices with attractive design, for example, with a glass front panel.

Device safety

When choosing a floor-standing electric convector, make sure that it has tip-over protection.

When purchasing convectors for a private home, you need to make sure that the following security systems are available:

  • rollover protection – will turn off the heating if the convector accidentally falls (relevant for floor-standing models);
  • overheating protection – ensures the safety of equipment when the critical temperature is exceeded;
  • protection against moisture – relevant for convector heaters that will be used in wet areas eg in bathrooms.

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