Tubular electric heaters(TENY) are used practically in any heating equipment. In most cases standard tubular heaters can be used, for special applications technical tasks special types of heating elements are possible. For example, tubular heating elements based on nichrome wire, filled in powder with magnesium oxide, which has good thermal conductivity (at high temperatures), are ideal for use as heating elements.

Modern man has long been accustomed to the convenience of the things around him. Various water heaters, like the other Appliances, provide our comfort, and therefore it is much more correct to approach their choice with all seriousness. The company "Mir Heating" will help you make the right choice by providing an extensive range various models industrial water heaters and other liquids. We work only with those manufacturers whose products have high technical characteristics and reasonable competitive prices.

Heating elements industrial heaters of water and other liquids

Undoubtedly, there is no need to argue about the most important function of electric water heaters. Of course, this is the main, but far from the only scope of such equipment, because, among other things, water heaters are successfully used when working with other liquids used in industrial processes. Mobile, easy to operate and reliable, these systems have proven themselves the best way in many areas, and therefore, before making the final choice of a model, think about where else this equipment can serve you.

The basis of any industrial electric water heater is a tubular heating element. It depends on its quality how long the purchased device will serve you, therefore, when choosing, stop your attention on its characteristics. We offer wide choose models of flow and storage water heaters.

Screw-in heating elements tubular electric heaters

screw-in tubular heaters, made in the form of a solid block or separate sections, are a tubular heating element that operates by consuming electricity. They are optimal solution for heating various liquids, gases and are used in water heaters.

Flowing industrial heating elements electric water heaters

Flowing water heaters have a number of differences from storage water heaters. One of these differences is higher power consumption. The block of the electric water heater itself is made of of stainless steel. A tubular or screw-in heating element is mounted in its body. The power consumption of such a heater ranges from 3 kWh to 12 kWh. Case sizes can also vary. The body length of the instantaneous electric water heater is from 320 mm to 1020 mm. Depending on the goals and objectives, the customer can choose the optimally suitable tubular heating element.

TEN tubular heater - storage water heater

Storage water heaters (boilers) with a copper tubular heating element can be of different volumes and are irreplaceable devices both for industrial and domestic use. The power consumption of such water heaters is 1.8 kWh - 2.2 kWh, but it can be different, depending on the needs of the customer.

We are asked questions about heating elements:

Nikolai, St. Petersburg: We need heating elements 220 C 13 / 2.0 T 220 Form U, R 70 mm, m4 thread outlet, stainless steel body. Will they overheat when spaced 30mm apart? They will be turned on by a star of 3 heating elements per phase. With this application, on heating elements made of ordinary steel with a power of 2.5 kW, after 1.5 hours, a breakdown occurs on the furnace body with the circuit breakers turned off. Therefore, it was decided to replace them with heating elements of lower power and made of stainless steel.

Having suffered with the heating of the moonshine still on gas, it was decided to transfer it to "electric traction". This will be discussed in this material.

A heating element made of stainless steel 1.5 kW was purchased on the market. It also came with nuts, washers and gaskets.

I chose the place for the tie-in so that the heating element and its conclusions would not create inconvenience during operation. After that, carefully mark the holes and drill. I didn’t have a drill of a suitable diameter and I drilled a smaller one, and then expanded the side of the drill at high speeds of the drill to the desired size.

Having made and expanding both holes, you need to process their edges from burrs and scuffs. I carefully cut off all the excess with a knife, and then cleaned it with fine sandpaper.

It's TEN's turn. We take a fluoroplastic plumbing winding and wind a decent layer on the thread. This layer, when the nuts are tightened, will be tightly compressed between the wall of the moonshine tank and the limiters on the heating element and will create an excellent seal.

We insert the heating element into the prepared holes and, if it is not possible to immediately put the washer under the nut, we tighten the nuts without washers in order to “pull out” enough threads. Then we unscrew the nut, wind a little more fluoroplast between the tank wall and the washer and now tighten the nuts tightly with the washer.

Here's what it looks like now:

It remains to connect the heating element and you can test alcohol mashine on electricity. To connect to the network, I took a copper stranded cable with a cross section of 1.5 mm2. We clean, connect the plug from one end, and throw the other to the heating element. At the same time, to connect the heating element, the stripped ends of the cable are folded into rings, which are placed between two washers on the heating element.

It remains to securely insulate the connections with blue electrical tape, check for breakdowns on the body and you can connect the electric moonshine to the network.

In conclusion, I want to add that 1.5 kW is not enough, the output fell by 1/3 compared to working on three gas burners. In the future I plan to supply 2 kW + 0.5 kW for.

You can get acquainted with the designs of moonshine stills, and you will find recipes alcoholic beverages based on good moonshine

When looking for optimal heating schemes, proven ways to maintain a comfortable temperature in the house are often forgotten. Along with traditional solid fuel boilers in some cases, it is optimal to use heating elements for heating a house with your own hands: batteries, radiators, boilers can include this heating element. However, before you start installing equipment, you need to weigh the pros and cons.

When is it appropriate to use heating elements

First of all, it should be clarified that it is not recommended to make a home-made heater for a heating battery. This is due to the observance of safety regulations. V similar structures difficult to prevent short circuit when electricity penetrates into the coolant. Therefore, do-it-yourself heating on heating elements should be done only using factory models.

The heating element is a metal spiral with high rate electrical resistance. It is enclosed in a metal shell that is filled with oil. This ensures the best heat transfer coefficient during operation of the device. When connected to electrical network the spiral begins to heat up, transferring thermal energy on the surface of the shell. She, in turn, is a heat exchanger between the heating element and water.

Heating coils for heating are important to use in the following cases:

• Creation of heating systems without a pipeline. To do this, you need a heating element for a heating radiator with the ability to control power;
• Included in electric boilers. If factory models are too expensive, you can make an analogue with your own hands. As the main heater it is recommended to use a special heating element for a heating boiler. It is characterized by increased power, in most cases it is designed for a mains voltage of 380 V;
• For rapid heating premises. Unlike solid fuel gas boiler heating with electric heaters has a minimum time for heating the coolant. If necessary in short time raise the temperature in the room - it is best to use this type of heating.

In addition, electric heaters are small in size. They are successfully integrated not only into boilers and heating radiators, but also directly into the pipe. Due to this, the dimensions of the entire system are reduced, which is important for small houses and apartments. The disadvantage of heating on do-it-yourself heaters can be attributed to high operating costs. In a comparative analysis of various energy carriers, electricity will be the most expensive.

Is it really effective to use heating elements for heating radiators? Reviews often contain conflicting information. This is mainly due to the life of the heater. The reason for this is incorrect installation and operation of the device.

Inserting a heating element into the heating system can be done on your own. Manufacturers often include installation instructions with the device.

Rules for installation and operation of heating elements

One of the main parameters for each electrical appliance is its rated power. Correct installation of the shade in the heating system is carried out only after calculating this value. To do this, you need to use a simple formula:

P=0.0011*m(Tk-Tn)/T

Where m– energy carrier mass, kg, Tk and Tn- the value of the water temperature after and before heating, T is the required time to raise the temperature to the optimum Tk.

For a 6-section aluminum radiator, m will be equal to 0.45*6=2.7 kg. Let's pretend that Тk=80°С, a Тn=20°С. The heating time should be 10 minutes. In this case, the optimal power that electric heating elements for heating radiators should have will be:

P \u003d 0.066 * 2.7 (80-20) / 10 \u003d 1.06 kW

This takes into account that the coolant is water. With the use of antifreeze, the rated power of the heater for the heating battery must be increased with an adjustment 1.44 - 1.06 * 1.44 \u003d 1.52 kW.

Then you need to familiarize yourself with the installation rules electric heaters for home heating.

The outer sheath must always be in water. If this is not done, the heat from the coil will not be compensated by the low water temperature. As a result, the heating element will quickly fail due to overheating. Therefore, the ten for heating the house is mounted at the lowest point of the radiator. In this case, it will not be in the possible zone of the formation of air pockets.

Coolant quality

It is best to use distilled water, as it contains a minimum% of impurities. When heated, they form a scale layer on the surface of the protective shell. This leads not only to a loss of efficiency of the device, but is also the main cause of corrosion.

Joint sealing

When installing the heater in the heating system, you must first read the instructions from the manufacturer. If it indicates that the end joints of the electrodes must be additionally sealed, this must be done. Otherwise, if water gets on the surface of the heating coil, the danger to those living in the house increases. Having familiarized yourself with these rules, you can proceed with the installation of a heating element for heating.

Not every heating element is suitable for a heating radiator. Only special models with the appropriate mounting diameter should be selected.

Radiator electric home heating

Before inserting a heating element into the heating system, the parameters of the radiator are needed. The main one is the diameter of the connecting pipe. Currently, manufacturers produce products with two standard sizes - 1/2 and 3/4 inches. Then a comparative analysis of the heating parameters before and after the installation of the heating element is carried out.

Connecting the heating element to the existing heating

If it is to be used as additional way heating water - you need to take into account the change in hydraulic pressure when passing through the radiator. Since the passage diameter of the system will be smaller this month, it is recommended to install a pump with a larger capacity.

When connecting a radiator to the system, installing a heating element for heating a house will not be possible. To do this, you must either change the connection scheme to the top, or install a heating element on the top of the battery, which is not recommended by experts.

Often they make installation in old cast-iron batteries. Before performing work, you must first check the thread direction of the pipe (right or left) and also measure its diameter. Then you should follow this scheme:

• Coolant drain. It is forbidden to install a heating element in a heating radiator if there is water in it;
• Checking the battery level. Even with a slight angle of inclination, the likelihood of air pockets is significantly increased;
• Installing the heating element in the pipe. To seal the holes, you must use the gaskets supplied with the heating element or make them yourself;
• Installation of a unit with a thermostat, if one is included in the kit.

After that, it is necessary to fill the system with water. Via installed crane Mayevsky, possible air locks. Before switching on, to ensure safety, a tester checks a possibly occurring heating coil-battery circuit. If it is, you need to dismantle the heating element and install it again, improving the sealing.

Radiator electric heating

When organizing heating on heating elements made by oneself, the installation of a pipeline is not necessary. A heating element must be installed on each radiator. At the same time, it is possible to mount models of different power depending on the thermal regime in a particular room of the house. The advantages of such a system are as follows:

• Savings on the purchase of materials and reducing the complexity of installation work;
• If a heater with and a temperature sensor connected to it is used, the degree of heating of the room will be adjusted automatically;
• Minimum heating inertia of the system.

But all these positive traits can cover the total cost of maintenance. Therefore, before heating with electric heaters, it is necessary to calculate not only the cost of purchasing materials and components, but also the subsequent costs of electricity. Only after that to introduce a heating system of this type.

It is recommended to purchase factory radiators with installed heating elements. The efficiency of their work is higher than that of home-made ones, since special oil is used as a coolant. Even with the heating element turned off, it will give off heat to the room for some time.

Do-it-yourself electric boiler

Is it possible to make a boiler that uses electric heaters to heat a house on your own? First you need to familiarize yourself with the design of factory models.

They consist of a block with an installed heating element, a control and safety system. Unlike traditional boilers, it differs small size and the ability to install almost anywhere in the system. For manufacturing, you will need the following tools and materials:

• Ten block. It is best to use this type of heaters, as they have maximum power;
• Thermostat and temperature sensor;
• Steel body, divided into two zones. One will house an electric heating element with a thermostat for heating, and the second will install a control and protection unit.

Since the heater in the heating system must always be in the water, it is recommended to install a liquid level sensor. Fluid circulation occurs through the inlet and outlet pipes. To improve this process, a connection block is provided. circulation pump. But it should be noted that it is not recommended to make such boilers with a power above 9 kWt for a private house. This is due to the maximum load on the power grid and high overhead costs.

Installed additional heater with a thermostat in heating can be used as a way to prevent the coolant from freezing. To do this, the device can operate at minimum power.

How to choose heating elements

How to choose the right heater for the heating system? Currently, there are many manufacturers that offer similar products. However, the quality is not always technical specifications match the requirements. Therefore, before purchasing, you need to pay attention to the following performance characteristics of the heater:

• Rated and maximum power. If a heating element is needed in a heating boiler, its power should be enough to operate the system. The simplest way calculation - per 10 sq.m. houses need 1 kW of thermal energy;
• Mains type. For models up to 3 kW, you can use home network 220 c. If it is planned to install a heater for a heating system of greater power, a three-phase 380 V network should be installed. This may be due to difficulties in paperwork;
• The presence of a thermostat. For radiator system electric heating this is the main selection factor. If you purchase a ten without the ability to adjust the power, it will constantly work at maximum mode. Thus, electricity costs will rise sharply;
• Price. The average price of a 2 kW model starts at 900 rubles. The cost of more powerful ones can be up to 6,000 rubles. Often they are made to order.

The appearance of the heating element can also affect its performance and efficiency. The best option there will be a purchase of a ribbed heating element for a heating boiler. It differs from the usual ones in that additional heat exchange plates are located on the protective shell.

Thanks to them, the heating area increases. This design is typical for heating elements in larger diameter heating radiators. Reviews about them speak of increased heat transfer even with a minimum operating mode. But they are not always dimensions allow installation in a battery. Therefore, most often they purchase simple tubular-type heaters. To increase the efficiency, you can buy a block of heating elements with a thermostat. It differs from traditional ones by the presence of several heating elements on the same basis.

Prevention of breakdowns of heating elements

Even after being able to professionally embed heating systems heating, you must follow the rules of operation. First, the ability of the power supply to withstand maximum loads. To do this, it is necessary to sum up all the power of electrical appliances in the house and add a factor of 1.2 to the resulting figure for the power reserve. The cross section of the electrical wiring must withstand the rated power without overheating or short circuit.

The operation of the heating elements in the device consists in the gradual destruction of the heating coil. Therefore, the heaters intended for radiators must have maximum term operation for at least 10 years, which is confirmed by the manufacturer. In addition, you must follow these rules:

• Do not add tap water into pipes or radiators. This can lead to the formation of scale on the surface of the heating element. Use only distilled water;
• Installation of RCD (device protective shutdown) is required. One or more heaters can be connected to it. In the event of an emergency, this device will cut off the power supply;
• Frequent switching on and off of the heater when heating the house reduces its service life;
• If static electricity is observed on the surface of the battery, it is urgent to check the tightness of the heating element;
• Installation of a heating element in a heating boiler or radiator without grounding is prohibited.

It is impossible to install ten in the heating system without first checking the grounding. To do this, it is best to use the services of an electrical laboratory.

Broken heating element in the boiler or boiler

Despite its reliability, the failure of heating electric heaters is quite common. If this is a factory model - do self repair only possible if there is confidence in own forces. It is best to contact a specialized company, since in addition to the heating element, other important parts of the system can be damaged during unqualified repairs.

If a decision is made to independently restore the boiler's performance, you first need to familiarize yourself with its design. To do this, you can use the data from the passport or look at the data on the manufacturer's website. Before dismantling the heating element, the device must be provided. Then the coolant is drained. You can check the performance of the heater using the indicator. The passport must indicate the resistance indicator when the circuit is closed. If the indicators do not match the original ones, a new heating element is installed. The best option– installation of a similar device from the same manufacturer.

Before you embed the heating element in the heating system, you need to make good thermal insulation in the apartment or house. This will reduce the current electricity costs, which in turn will increase the life of the heating element.

The onset of cold weather always makes heating issues especially relevant. In the chilly off-season centralized systems often they don’t turn on “until the last”, and then they come to the aid of the freezing townsfolk alternative systems heating elements, such as heating elements for heating radiators.

It's simple and enough effective option helping to support comfortable temperature. Let's talk about it in more detail.

Like any other heating element for heating, the radiator is designed to heat the coolant and maintain it. operating temperature. The instrument can be installed in almost any heater, which has an internal cavity filled with liquid. Due to this, its scope is quite wide.

Radiator heating elements can act as the main or additional source of heating. They are very good as heat sources for rooms with a relatively small area, which are periodically used during the cold season. For example, various utility rooms or garages. In this case, the heating element is mounted in an autonomous radiator, usually it has impressive dimensions.

A radiator with a built-in heating element outwardly practically does not differ from traditional batteries. During the off-season, while the central heating is not yet turned on, it will help residents not to freeze

The battery is not connected to the heating system and is filled with coolant, which circulates exclusively within the radiator housing. In such cases, technical oil with a reduced viscosity is chosen as a coolant, which allows you not to be afraid of the radiator completely freezing during off hours. It turns out an analogue of an oil-type radiator, only of a larger size.

Radiator heating elements have proven themselves quite well as the main source of heat for country houses which are heated periodically. The system is equipped similarly to the one described above, but only the heating elements are mounted in batteries installed in each room.

It is possible to organize such heating for houses with permanent residence. In this case, the batteries can be filled with ordinary water, since it is not planned to allow the system to freeze. True, such options are used extremely rarely due to the high cost of electricity.

More widely radiator heating elements are used as additional heat sources. They can be built into an existing heating system with a liquid heat carrier and turn on when the main heating is not working for some reason. This solution is especially successful for houses with central heating. During the period when it is turned off, the heating elements literally save the residents of the apartment from freezing.

The so-called heating registers are very popular among home craftsmen. They can be easily assembled with your own hands and equipped in this way. practical heating for garage or utility room

Another good option- connection of devices to an autonomous heating system with a solid fuel boiler. This will allow maintaining a comfortable temperature in the rooms even at a time when the owner is unable to supply fuel on time.

If it is possible to use a multi-tariff meter, it may be practical to switch to electricity at night when it is relatively cheap. In the afternoon, the boiler will work again.

Practice shows that it is economically unprofitable to use radiator heating elements as additional source heat for autonomous systems running on gas. This type of fuel is relatively cheap in itself, so it does not make sense to replace it with more expensive electricity. If the boilers operate on an expensive liquefied gas or on diesel fuel, the benefit will be obvious. But only if there is a two-phase electricity meter.

How is an electrical appliance

The design of the device practically does not differ from other heating elements. The body of the tubular electric heater is made of seamless or electric-welded thin-walled metal tube. Its diameter can vary, and the cross section can be flat or rounded.

Carbon steel is most often used as a material for the manufacture of the case, but stainless steel can also be chosen if the working surface of the device is heated to temperatures above + 450C.

To protect the metal from corrosion and extend the life of the heating element itself, steel body chrome or nickel plated. A nichrome wire coil is used as a heating element. The item has a high resistivity which heats up quickly. The spiral is placed inside the body, in the remaining free internal cavity - a filler.

In the design of the radiator heating element, there is always a spiral, which is responsible for heating the device. It has a high resistance, so when the current passes, it quickly heats up.

The case has high electrical insulating properties and at the same time transfers heat well. Purified quartz sand or periclase can be used as a filler - this is the name of a mixture of crystalline magnesium oxides. After the body is filled with filler, it is pressed and bent, giving the required shape. All insulators are coated with an organosilicon moisture-proof compound.

Such a device can be installed in any type of radiator: copper, cast iron, bimetallic, etc. The device is capable of generating up to 2.5 kW of power. Models designed for industrial use deliver up to 6 kW. The design of the electric heater is such that the device converts all the incoming electrical energy into heat without a trace, while there are practically no losses.

The principle of operation of the device is extremely simple. When activated, it begins to heat up quickly, heating the coolant located in the immediate vicinity of it. According to the laws of physics, a heated liquid is lighter than a cold one, so it begins to move upward. In its place, a colder coolant falls. Rising up in upper part radiator, the heated liquid gives off its heat there, cools down and goes down.

The main enemy of heating elements of any type is limescale. It inevitably forms on the heating element and gradually causes the device to fail.

The cycle is repeated many times. Thus, the electrical appliance creates a unidirectional fluid current inside the battery. Its speed is higher, the greater the power of the device. Based on practice, one of the best views The coolant is transformer oil. The liquid heats up quickly and does not cool down for a long time, gradually giving up its heat to the radiator housing.

Cons and pros of a radiator heater

Tubular-type electric heaters make it possible to assemble a practical and fairly efficient heating system for the main or additional heating. The advantages of the devices include:

• Extreme ease of installation. Every novice master will cope with this work.
• The low cost of the device, however, refers to the price of one heating element, without additional equipment.
• Greater reliability compared to oil coolers. In addition, batteries with heating elements are maintainable. If the equipment fails, it will be enough to replace the heater.
• Availability of additional functionality.
• The possibility of automatic control of the heating system, but this will require additional equipment.

We have listed the main advantages of radiator heating elements, consider their significant disadvantages. There are quite a few of them. First of all, these are impressive operating costs, which is explained by the high cost of electricity. They can be reduced if the control of the heating system is fully automated.

In this case, the heating elements will be switched on only after the temperature in the room drops to a certain minimum value. And turn off when the temperature is determined as comfortable. Working in this mode is the most economical.

The simplest in design radiator heating elements are not equipped with automatic control. To automate such a system, you will need to purchase additional equipment.

However, automation equipment will require financial investments. If we consider the purchase of a heating element complete with a radiator and with automation, the cost of such a kit will be much higher than the price electric convector Or an oil cooler.

But at the same time, the latter are in no way inferior in terms of the level of comfort provided, and in some ways even surpass radiators with heating elements. For example, the latter require a fixed installation, while electric convectors and oil coolers more mobile and compact.

Moreover, like any other electrical appliance, during operation, heating elements generate a magnetic field. Its danger to the body has not been proven, as well as safety. Therefore, it is worth referring the presence of such a field to negative qualities devices, because they are mounted in radiators, that is, they are in close proximity to people.

In others heating systems powered by electricity, this disadvantage is to some extent leveled. For example, electric boilers are located in non-residential premises where the presence of a person is short-term.

One of the most significant drawbacks of radiator heating elements is their relatively low efficiency. When compared with the efficiency of traditional systems operating with a liquid heat carrier, it will be significantly lower. This is due to the fact that in the first case the coolant moves at a fairly high speed. Thanks to this, the radiator warms up quite quickly and completely.

To increase the heat transfer of radiators equipped with heating elements, you can cover the wall, on which the device is fixed, with a reflective foil screen. thermal radiation will only move into the room

The functioning of the heating element is not able to provide such high speed. As a result, the heating of the battery case will be uneven. At the bottom, the temperature will be much higher than at the top.

Considering that, for safety reasons, the battery should not be allowed to warm up above + 70ºС, such a temperature will be present only in the lower part of the radiator, where the heating element is located. Therefore, in order to prevent overheating of the equipment, it will be necessary to reduce its power by about a third.

Varieties of tubular heaters for radiators

Despite the simplicity of the design, on sale you can find various variations radiator heating elements. First of all, the power of heating devices varies. Models with a minimum power "give out" about 0.3 kW, with a maximum - 6 kW. The devices differ in case design. Considering that the configuration and location of radiators can be different, there are heating elements with left or right threads.

The diameter of the device may also vary. This is due to the cross section of the radiator cap plug, in place of which the device is mounted. Standard size- 40 mm. The fundamental difference between devices designed for installation in radiators made of various materials, No. Their design is similar, only the diameter may differ. On sale you can find single and double heating elements.

Double heating elements are more convenient to use. They allow you to significantly increase the rate of heating of the coolant, but at the same time they differ from single counterparts in a higher price.

The latter is more convenient to use. At the moment of switching on, both elements are activated at once, due to which the coolant heats up as quickly as possible. After that, one of the elements is turned off, which saves energy. Some models are equipped with additional functionality. The manufacturer uses only two functions:

• Turbo heating. It makes it possible to force the increase in temperature in the room as much as possible. A thermostat is necessarily built into the device, which allows you to change the intensity of heating.
• Antifreeze. This mode prevents possible defrosting of the entire system when the temperature drops to negative values. The heating element automatically maintains a minimum allowable temperature while consuming a small amount of electricity.

In addition, heaters for radiators differ in length and the presence or absence of a thermostat.

How not to make a mistake in choosing

Radiators for heating elements are quite simple to choose, since they do not imply a special variety of designs and specifications. Before buying, please consider the following points.

Calculation of the power of the electric heater

In order to properly define required power devices, it is desirable to know the heat engineering standards in force in the area. In extreme cases, you can use the average indicator, which can be used in middle lane Russia and make any amendments if necessary.

Based on this, for 10 sq. meters of heated area, provided that the heater will be used as the main heating, 1 kW of its power is needed.

If heating elements for radiators are chosen as the main heating for the house, it is highly advisable to purchase models with a thermostat. Thus, it will be possible to regulate the power of the device and thereby reduce energy costs.

If the device is used as additional heating, the required power will be 3-4 times lower. In addition, when choosing a device, one should take into account the specifics of the radiator heating element. By virtue of their design features it will be able to work smoothly only at 75% heat transfer of the radiator. With more power, the device will overheat, and it will constantly turn off.

Based on this, the power of the device is calculated. The exact values ​​​​of heat transfer of a particular radiator can be found in its technical documentation. However, on average, one section of an aluminum battery has a heat dissipation of 180 watts, a cast-iron battery - 140 watts.

For example, let's calculate which heating element is suitable for a 10-section radiator. We multiply the data by 10 and we get that it is worth taking for an aluminum battery TEN power up to 1.35 kW, for cast iron - up to 1 kW.

Design features of the device

For each radiator, it is necessary to select the heating element suitable for it in size and direction of thread. The equipment has a different length of the rod, which may affect the efficiency of its operation. With an insufficient length of the heating element, the equipment is not able to provide a sufficiently high circulation rate of the coolant, as a result of which the heating of the radiator will be uneven and insufficient.

The length of the device, perhaps, is one of its most important characteristics, which directly affects the efficiency of work. Before buying, you should measure the radiator and calculate the required length of the built-in heating element

The optimal option is when the heating element rod does not reach the inner wall of the opposite edge of the radiator by 60-100 mm. It is also important to choose the right shape of the case and the diameter of the device. At different models plug material may vary. For right choice you should study the manufacturer's recommendations, where he describes the types of heaters suitable for use with a particular heating element.

Availability of automatic control

Devices with built-in automatic control or without it go on sale. The first variation is the most convenient and does not require the cost of purchasing additional equipment. In this case, in lower part in the body of the heating element, a thermostat is built in with a sensor that measures the temperature of the coolant.

If there is no built-in automation, the appliance does not have a thermostat. In this case, it is advisable to connect using a detector that measures the air temperature in the room.

It must be admitted that this equipment is not so popular and in demand that large European companies are engaged in its production.

In stores you can find radiator heating elements made by Turkish, Polish and Ukrainian brands. In terms of quality and functionality, they are approximately the same. It is difficult to say which company's products should be preferred. But you need to be wary of Chinese heating elements, as it is often possible to get a poor quality product.

Features of installation of radiator heating elements

Installing the device is quite simple. In order for the operation to take place without any difficulties, you should also familiarize yourself with its equipment in the store. V ideal together with the heating element, all the elements and fasteners necessary for safe connection will be placed in the box. If any parts are missing, you need to buy them immediately.

Heating elements with thermostats are more functional than their standard counterparts. At the same time, their installation, in fact, is no different and is just as simple and fast.

Another important point: before installation, make sure that the system is free from water. For this reason, in apartment buildings it is optimal to carry out work in the summer, when the central heating is turned off.

The installation itself consists in dismantling the plug located at the bottom of the radiator, and then installing a heater in its place. To make the joint tight, a rubber gasket must be installed. It will not be superfluous Preliminary processing joint area with sealant.

The heating element can only be installed in the lower part of the radiator so that the liquid can circulate freely. The part is inserted into the battery strictly horizontally, otherwise there may be problems with operation. To connect the heating element, it is allowed to use a socket with grounding. It is advisable to install a voltage stabilizer to protect the device from power surges.

You can turn on the device in the network only after filling the radiator with liquid, otherwise the device will fail. The design with a heating element is maintainable. If necessary, the device can be easily removed and repaired, and more often replaced with a new one. Given the hardness of industrial water, experts recommend regularly cleaning the heater from scale. To do this, the device is removed from the battery, after which cleaning is carried out.

A radiator with a built-in heating element will serve for a long time and without problems, if you do not forget to maintain it regularly, namely, remove the heater and carefully clean it from scale

You can use the mechanical method, when the scale is carefully removed sandpaper or with a stiff metal brush. This should be done very carefully, since heating elements are very sensitive to mechanical damage and can fail.

In addition, you can use chemical method. In this case, the device is treated with special substances. It is very important not to damage the rubber gasket.

Conclusions and useful video on the topic

The videos show rational advice on the use and connection of heating devices.

How to independently install the heating element in the radiator:

We offer an overview of the heater for a cast-iron radiator:

Heating element for aluminum radiator:

Radiator electric heaters - good way arrangement of additional heating for the premises of the for various purposes. They are relevant for cottages, garages and buildings that are used from time to time. Such heating elements are rarely recommended as the main heating. Still, they consume a lot of electricity, so you can find another, less expensive way to heat your home.

TEN - an electric liquid heater in the form of a metal tube, inside of which there is a spiral. Lots of designs and variety. Heaters are manufactured for both large and small industries.

These heaters are mass-installed, for example, in electric boilers and electric boilers, therefore they are also produced by well-known manufacturers.

But in any market you can find heating elements intended for installation in heating radiators. These devices are made more often in Poland, Ukraine, China. They can be equipped with built-in thermal sensors, i.e. operate in semi-automatic mode, monitoring the degree of heating.

Based on such electric heaters, you can easily create a heater with your own hands. This is what home masters use, designing the simplest heating and “saving” at the same time, as they think, a fair amount of money.

But is it profitable to use heating elements?
Where usually, in what situations, these electric water heaters are used? How to install and use heating elements ...

How big is the benefit from heating elements

If there is an old battery, then why not turn it into a heating system with a heating element for a small utility room - a chicken coop, a workshop, a garage ...

There are even myths that it is profitable to heat with shadows. But "dreams are shattered by harsh reality" - heating with electricity is the most expensive thing. Since the most expensive energy source is used.

It does not matter whether there is a branded programmable electric boiler, or a barrel with a heating element lowered into it on a wire is installed - the efficiency of such electric heaters is about 97%. And then we pay according to the meter ...

Get warm at night

But there is a loophole - a cheap overnight electricity rate. You can find out exactly about the current tariffs and the possibility of connecting the night, in the local power grid.

True, nighttime electricity cannot be called cheap, but in combination with the “Comfort” indicator, nighttime heating becomes very attractive to the user.

But the price of the heating system itself with electric heating can vary considerably.

Heaters in batteries

When in apartments with central heating cold, then they are heated additionally with electricity, as well as gas cooker or column.

This is where a couple of heavy cast iron batteries with heating elements. Compared to branded electric convectors, they have a much higher heat capacity, so they can be turned off for a longer time and not monitor their work. But the heating is correspondingly longer.

Craftsmen install such radiators mainly in garages, where they like to spend time. Or, for example, for heating animals in cold weather on small farms.

Heating systems equipment

It happens that in a dacha, in a garage, etc. there are remnants of the former heating system, for example, a couple of radiators with steel pipes. The easiest way to bring the system back to life is by inserting electric heaters into it ....

But heating elements can also create auxiliary heating in home system heating. Electric heating perfectly complements the solid fuel boiler. Especially at night, with a cheap fare. And here " homemade production” is also in demand.

If big enough metal pipe fix a couple of heating elements of 2 kW each, you get a 4-kilowatt electric boiler. The nuance is that at night it can be connected to a low-power 220 V network, since other consumers are “sleeping”, except for the refrigerator, for example.

Such a “creation”, in practice, can become the main heating during the season in an insulated house, if, of course, a buffer tank is used - a heat accumulator.

What power will be needed

In the heating system of the whole house, it is better to use 2-kilowatt samples of electric heaters.

But in individual radiators of home-made registers, cuttings of heating in garages ... it is impossible to use too powerful heating elements.

Therefore, the power of the ten should not be more than the thermal power given off by the device at +70 degrees. This is approximately 75% of the nameplate power of the radiator.

One section and cast iron and aluminum radiators(500 mm between pipes) has a heat transfer capacity of 170 W at 90 degrees of liquid and 20 degrees of air. At +70 deg. heating - one section - 140 W, 7 sections - 1080 W, 10 sections. - 1400 W.
Thus, for a radiator of 7 sections, the power of the heating element should not be more than 1 kW. And for a radiator of 10 sections - no more than 1.4 kW.

The situation is more difficult with self-made registers - their heat transfer is unknown. It remains only to start using the least powerful heaters.

What shades for the radiator to choose

Heating elements for radiators are made on the basis of a plug (base) with a standard thread diameter of 40 mm. It remains to unscrew the bottom plug from the radiator, screw the heater in its place.

The selection of these heaters in terms of power for radiators was mentioned above. Do not take more powerful devices, in order to avoid emergencies. No need to overheat the radiator, achieving greater heat transfer.

But these heaters also differ in length. For separately standing radiator, no fluid movement, longer shadows are preferable. Then the heating will be more uniform.

In a flow electric boiler, another selection priority is lower hydraulic resistance. Minimize the effect of heaters by properly piping and configuring their location to home craftsman no problem.

The manufacturer - the "Chinese", as before, is scolded the most, the best heating elements are considered to be local spills - Russian-Ukrainian.

How to apply

Heating elements can turn on room thermostat. Then they are controlled by the set air temperature.

But in most cases, heaters with built-in temperature relays are used - heating according to the temperature of the coolant.

Liquid expands when heated. You can not separate radiators, and others closed systems heating, fill with liquid completely. In heating systems, an expansion tank is used to compensate for expansion.

In the case of a separate radiator, it is enough to leave at least 10% of the internal volume unfilled - fill the radiator up to the top plug.

The installation of the heating element is as follows. The system is drained, the radiator cap is unscrewed, the ten is screwed in. In this case, flax with lubrication is usually used as a sealant (metal-to-metal).

The heater is connected to the mains in accordance with the PUE, with the appropriate insulation of the contacts.

Oil not allowed

You can come across recommendations to fill the radiator with oil - supposedly it will turn out to be an analogue of an “oil heater”. Before you follow similar advice, it is recommended to study the experience of the "pyrotechnics" who poured oil on cardboard, set it on fire, and then tried to extinguish it.
Oil-filled industrial generating sets (for example, high-voltage oil disconnectors) are operated with special fire safety measures.

If the system freezes, you must use antifreeze liquids, for one radiator, you can use the same automobile Antifreeze. Flammable liquids are not allowed.

There are also other violations.

Do-it-yourself construction - profitable?

Self-construction of electric heaters is not welcome for safety reasons.

Much better to buy ready-made electric heater for rooms, for example, an electric convector that meets the requirements ... The manufacturer is responsible for its performance.

Economic feasibility in heating elements may arise, as was said, when there is an “abandoned” and “free” shell for it.

But security issues are actually much more important than the benefits obtained in this way.
Now this is understood more often, because heating elements are less and less interested.