Power of bimetallic heating radiators 1 section

A dependable heating system is essential for keeping your house warm and comfortable throughout the colder months. Bimetallic heating radiators have drawn attention due to their efficiency and effectiveness among the available options. This article explores the functionality and power of bimetallic heating radiators, with a particular emphasis on the effects of using only one section.

A lot of homeowners prefer bimetallic heating radiators because of their creative design and effective heat distribution capabilities. These radiators are made of two separate metals that are bonded together, usually steel and aluminum. As a result of this special combination, your home will remain warm for many years to come thanks to ideal heat transfer and durability.

The adaptability of bimetallic heating radiators is one of their main benefits. These radiators can be tailored to match your unique heating requirements, regardless of the size of your living space—small or large. Bimetallic radiators are an affordable way to heat your house because they can provide steady, dependable warmth even with just one section.

Bimetallic heating radiators are not only eco-friendly but also highly efficient. These radiators use less energy than conventional heating systems because they make use of cutting-edge materials and technology, which helps you minimize your carbon footprint and cut your utility costs. Their long-lasting design also reduces waste and environmental impact over time by requiring fewer replacements.

To sum up, bimetallic heating radiators provide a strong heating option for any kind of house. These radiators offer unparalleled performance and efficiency, whether you’re looking to heat a single room or your entire home. For homeowners looking for dependable warmth and comfort, bimetallic heating radiators are a wise option because of their creative design, adaptability, and eco-friendly advantages.

Power 1 section of bimetallic heating radiators

Any heating battery’s primary function is to heat the space. Heat transfer is the primary factor that should be taken into account when purchasing because of these reasons. Heat transfer values vary for every model of heating device, including bimetallic ones. The number of sections and volume have an impact on this parameter.

What is the power of one bimetallic heating radiator section, then? You can accurately determine the required size of the device by knowing the value.

What is heat transfer

Heating radiator made of two metals

Heat transfer can be summed up in two words: the quantity of heat released by a radiator over a predetermined period of time. Watts are used to measure radiator power, thermal power, and thermal flow, which are all synonyms for the same idea. 200 watts is the equivalent of this figure for one section of the bimetal radiator.

Heat transfer table for heating

Certain documents contain heat transfer values that are computed in calories per hour. To ensure clarity, the simplest calculations can be used to convert calories to watts: 1 W = 859.8 cal/h.

Three processes result in the room being heated by the heat from the battery:

The act of warming the space

All forms of heating are used by each model of heating device, albeit in varying amounts. For instance, those batteries are thought of as radiators that radiate 25% of their thermal energy into the surrounding area. However, regardless of the primary heating method, the term "radiator" has now come to refer to any heating device.

Section dimensions and capacity

Bimetallic radiators because of the more compact aluminum, cast iron, and steel models with steel inserts. This is somewhat advantageous because the smaller the size section, the less coolant is needed for heating, making the battery more energy-efficient when it comes to heat consumption. But garbage and trash, which are unavoidable satellites in contemporary heating networks, clog pipes too quickly.

Dirt and trash inside the heating battery

Good models of bimetal radiators have steel cores that are the same thickness as the walls of a regular tap pipe. The capacity of the battery’s sections determines how much heat it can transfer, and the center distance has a direct impact on the capacity’s parameters:

It is evident from the data that bimetal radiators need a small amount of coolant. For instance, only 1.6 liters are contained in a heating device with ten sections that are 35 cm high and 80 cm wide. In spite of this, there is sufficient heat flux force to warm the air in a 14 square meter room. It is important to keep in mind that this size of battery weighs nearly twice as much as its 14 kg aluminum equivalent.

The majority of bimetal batteries are available in single sections at specialty stores, and they can be used to assemble radiators that are precisely the right size for the space. While some whole models have a set number of sections (usually no more than 14), this is still convenient. There are two entrance and two day-off holes in each section. They might not be the same size as the model of the heating device. Two holes with right thread and two with left thread are made in bimetall radiators to facilitate assembly.

Bimetallic heating radiator assembly

How to choose the right number of sections

The technical passport includes information on bimetallic heating device heat transfer. All of the required computations are done using these data. If the heat transfer value is not stated in the documents, you can view the data on the manufacturer’s official website or use the calculated value in your calculations. It is necessary to perform its computation for every single room.

You must consider a number of factors in order to determine the appropriate number of bimetal sections. When considering the same operating conditions, bimetal has slightly higher heat transfer parameters than cast iron. For instance, if the coolant temperature is 90 °C, one bimetal section’s power would be 200 watts (180 watts from cast iron).

Table for Calculating Radiator Heating Power

In the event that you decide to switch from a cast-iron radiator to a bimetallic one, a new battery of the same size will provide slightly better heating than the old one. And that’s a good thing. It should be remembered that as blockages occur inside the pipes, the heat transfer will gradually decrease. Deposits form in batteries as a result of metals coming into contact with water.

Thus, take the same number of sections calmly if you still decide to replace. Install batteries in one or two sections occasionally leaving a tiny margin. This prevents heat transfer from being lost as a result of clogging. However, you cannot purchase batteries for a new room without making calculations.

Calculation on dimensions

The volume of the room that needs to be heated determines how much heat is transferred by radiators. You’ll need more sections in a larger room. The room’s area is therefore the easiest to calculate.

Particular standards apply to plumbing, and SNiP is tightly regulated. This also applies to batteries. The standard heating power for buildings in a temperate climate strip is one hundred watts per square meter of space. After calculating the room’s area by dividing the width by the length, the resultant number still needs to be multiplied by 100. This will reveal the battery’s total heat transfer. All that’s left to do is split it into the bimetal’s heat transfer parameters.

Formula to determine how many sections based on the room’s dimensions

For a 3 by 4 m room. This is how the calculation will appear: 3x4x100/200 = 6 pieces is K. Although the formula is maximum, it only allows you to get an estimate of how many bimetall sections there are. These computations do not account for crucial factors like:

  • ceiling height (formula is more or less accurate with ceilings not exceeding 3 m.);
  • location of the room (northern side, corner of the house);
  • the number of window and doorways;
  • The degree of insulation of external walls.

How much warmth is appropriate for the battery

Calculation by volume

A little more work goes into calculating the battery’s heat transfer in relation to the room’s volume. You will need to know the room’s length, width, and height in addition to the heating standards, which are set at one meter squared to forty-one watts.

For a 3 by 4 m room, what kind of heat transfer should bimetallic radiators have? Considering the 2.7 m ceiling height, we get V = 3x4x2.7 = 32.4 m 3. It is simple to determine the battery’s heat transfer after receiving the volume: 1328.4 W = 32.4 x 41 = P.

Consequently, K = 1328.4/200 = 6.64 pieces will be the number of sections (accounting for the battery’s thermal power in the high-temperature mode of 200 W). If the final figure is not a whole, it is always rounded up. More precise computations indicate that seven sections, not six, will be required.

CoEfficients of the amendment

As operating conditions change, radiators’ actual heat transfer can change even though their technical passport values remain the same. It is necessary to modify the calculations under different conditions because the above formulas are only accurate for houses with average insulation indicators and for the local climate.


To do this, the coefficient is additionally multiplied by the value that was obtained during the calculations:

  • Corner and northern rooms – 1.3;
  • regions with extreme frosts (Far North) – 1.6;
  • screen or box – add another 25%, niche – 7%;
  • For each window in the room, the total heat transfer for the room increases by 100 watts, for each door – 200 watts;
  • Cottage – 1.5;

Crucial! Due to their high cost, bimetallic radiators are hardly ever used in private homes, making the final coefficient in the calculation incredibly rare.

Batteries with bimetallic heating

Effective heat transfer

Thermal return values for radiators are indicated in the technical passport or on manufacturers" sites. They are suitable for specific parameters of heating systems. The thermal pressure of the system is an important characteristic that cannot be ignored when conducting the necessary calculations. Typically, the heat transfer value of 1 section is given for thermal pressure of 60 ° C, which corresponds to the high -temperature regime of the heating system with a water temperature of 90 ° C. Such parameters are now found in old houses. For new buildings, more modern technologies are already used, which no longer requires high thermal pressure. Its value for the heating system is 30 and 50 ° C.

The heating system’s temperature graph

It is actually required to count the power of the sections due to the varying values of thermal pressure in the technical passport. It is typically less than what is declared. The real heat pressure value is multiplied by the heat transfer value, and the result is divided by the value specified in the documents.

How well heat is transferred by heating batteries depends on how they are installed and connected.

The dimensions and room-heating capacity of a particular section of the bimetallic heating battery are directly influenced by its recoil parameters. It is impossible to perform precise calculations without understanding the bimetallic heat transfer value.

Heat transfer of heating radiators using a bimetallic heating radiator table The method of heating the room’s debris and filth in the heating battery table used to determine the radiator’s heating power

Bimetallic heating radiator assembly Form for figuring out how many sections based on the room’s measurements. Coems Coems when figuring out how many heating batteries are needed. The way that bimetallic heating batteries are installed and connected determines how well the batteries transfer heat.

The heating system’s temperature graph

Calculation of one section of the bimetallic radiator

Steel pipes make up the inner layer of bimetallic radiators, while aluminum nuts make up the outer layer. Increased heat transfer, resistance to pressure spikes, and resistance to coolant additive additions are what define them. They are regarded as the best option for heating buildings as a result. It’s also crucial that they have a far more appealing and contemporary appearance than standard cast iron.

Bimetallic radiators are made of aluminum and metal pipes.

Upon choosing to change the batteries, the question of how many radiator sections each room in the apartment or house needs to have will undoubtedly come up.

If you are aware of the room’s dimensions, thermal properties, and the power of one section of the bimetallic radiator, performing this computation shouldn’t be too tough.

Some tips and preliminary comments

The coolant’s temperature determines how much heat the heating device can transfer. Two varieties of heating exist:

Diagram showing the connections between radiators.

  1. High -temperature. Plus one: heating devices can have small sizes. Cons – low efficiency, small supply of adjustment, the possibility of burns, decomposition of organic dust at high temperature. Then people breathe products of this decomposition. For these reasons, high -temperature heating is not recommended for use.
  2. Low -temperature. Squeezing, more economical, more comfortable. The conclusion suggests itself: a large and warm heating device is better than a small and hot. In calculations, they usually focus on a temperature of 70 ° C.

Installing multiple heating devices is preferable in rooms larger than 25 m³ as this will enhance air circulation and ensure that heat is dispersed more evenly throughout the space. Place heating devices beneath each window in the room if there are multiple of them.

A single section of a bimetal radiator typically has a power of 170–220 watts. The seller can provide the necessary information, or you can find out from the heating device’s passport.

The number of bimetal radiator sections

Too many variables need to be considered in order for a qualified specialist to accurately calculate this amount. Furthermore, approximate calculations are sufficient in practice rather than perfectly accurate ones. Here are a few methods for performing this kind of simplified computation.

Replacing cast iron radiators with bimetallic

The bimetallic’s heat transfer is equivalent to that of the cast-iron radiator’s section.

It is easiest to calculate the number of segments in this instance. The truth is that one section of the bimetallic radiator’s thermal return differs slightly from the same features of the most popular cast-iron battery, which has 500 mm between its axes. It is typically marginally greater than that of cast iron.

Since having too much heat is always preferable to having too little, replacing each cast-iron radiator with a bimetallic radiator with the same number of segments is the easiest fix. Additionally, you can easily adjust the heat transfer by installing radiator taps with thermal heads in front of heating appliances.

The standard calculation method

Construction standards state that about 100 W of heating devices are needed for every square meter of the dwelling. The formula n = s*100 / p, where P is the power of one section and S is the area of the room, can be used to determine the necessary number of heating batteries.

For instance, we figure out how many radiator segments a room with 22 m 2 would need, each with a power of 180 watts.

N equals 22*100/180, or 12.22 ≈ 12.

There is a formula that is even easier. Given that the ceiling heights range from 2.5 to 2.7 m, we can infer that one section is needed for 1.8 m 2 of the room’s area, which is where:

In our case, we obtain:

12.22 ≈ 12 = N = 22 / 1.8

The outcome is the same, as you can see: 12 segments are required. However, keep in mind that the second (simplified) method can result in a significant error if the heating device has low power.

A volume method of calculation

Compared to the cast iron or steel radiator, the bimetallic radiator has a much more attractive appearance in the space.

The dwelling’s volume, rather than its area, may be the basis for the computation. In a panel house, 39–41 watts of thermal power are needed to heat 1 m^ of living space. Therefore, 4.5 cubic meters of air can be heated by a single section with 180 watts of thermal power.

For instance, we determine how many sections there are in a radiator for a room with a 20 m 2 area and a 2.7 m ceiling height, just like in the previous example. We estimate that 40 watts are needed to heat one cubic meter of air.

The following thermal power is needed to heat the room:

P is equal to 40 W/m^3 * V = 40 W/m^3 * S * H, where V is the room’s volume, s is its area, and h is its height.

P = 20 m 2 * 2.7 m * 40 W/m 3 = 2160 W

You can now determine how many segments there are: n is equal to p / p1, where p1 is the section’s power (180 T).

120 W/ 180 W= N = 2160 W

One twelve-segment heating radiator is needed. Fractional values are rounded to the nearest whole number in the larger direction upon receipt. As an illustration, n = 10.2 should be rounded to 11.

Several explanations can be added to the computations:

If the room has multiple windows, the heater’s segment count needs to be increased by 1.7 times for each window.

  1. If the temperature of the coolant differs from 70 ° C, the thermal power given by the heater will increase by 15-18%if the temperature increases by 10 ° C. With a decrease in temperature by 10 ° C, thermal power decreases by 15-18%. For example, at a temperature of 50 ° C, it decreases by one and a half times.
  2. If the room contains not one, but two ordinary windows, the value of the calculated number of heater segments should be increased 1.7 times.
  3. If the room is in the end of the house or is a corner, the estimated number of segments should be increased 1.2 times.
  4. If plastic windows with small thermal losses are installed in the house, and the walls are well -insulated, then for heating 1 m 3 of air you need no longer 40, but 34 W is needed. For residential premises built in full accordance with the latest building codes, even 20 W is enough.
  5. Do not forget that the heat transfer of radiators decreases over time, respectively, the power of their individual segments and heating in general decreases. For this reason, it is recommended to increase the number of segments in each room by 1-2 compared to their estimated number.

It is always possible to look for assistance from the relevant literature if it is preferred to obtain more accurate results. The temperatures inside and outside the room, thermal losses, material thermal conductivity, coolant temperature, etc.D. will all be considered in these calculations.

The accuracy of the bimetall radiator calculations provided in this article is more than adequate for practical purposes. However, since our winters are frequently extremely severe, it is preferable to buy radiators with a small margin.

Power of bimetallic radiators: heating features and calculation of batteries for one room

This material is primarily meant for people who have made the decision to heat their own homes themselves. It requires that the heater be calculated based on its power in a given room while accounting for the room’s temperature.

Naturally, these calculations will vary depending on the climate zone, the building’s insulation level, and the thickness of the double-glazed windows. However, since this is all too complicated, we will attempt to provide a straightforward explanation of how to perform these calculations on your own.

Distinctive dimensions of bimetallic batteries

As the most widely used type of radiator for autonomous heating systems, bimetallic radiators will be the focus of our calculations; among other things, this article will include a video.

Thermal power of radiators

Some features of heating

Heating system with one pipe and two pipes

  • When installing autonomous heating, the instruction allows you to mount both one -a -pipe and two -pipe circuit. But at the same time, the connection diagram will change, and this can affect the power of heating devices, so let"s find out what both of these options are.
  • Let"s start with a one -pipe system And here we see that the coolant moves along a thick pipe, from which there are more thin ones, through which the water under pressure enters the heater and returns back.
    The price of such a device is less, since you have to warm less water, but there is a serious problem-with each battery, the coolant is getting colder and colder, therefore, in such cases it is recommended to do with three or four radiators and nothing more, since they are in the order of removal losing their power.
  • The situation with the two-pipe system is in a completely different way – Here, of course, you have to warm much more water, but it, entering the radiators on the pipe of the supply, does not lose its temperature, since the cooled coolant is dumped into the return pipe. On such contours, the calculations of the power of radiators of different types will be the most accurate.

The area beneath the window is the most efficient location for the radiator.

Note: The absence of warm air leaks in the room will ensure the most consistent microclimate and help determine the heater’s power requirements with the highest accuracy. Therefore, the radiators should be positioned beneath the window, as shown in the image above, because the hot air flows will rise and cause the cold air coming from the glass to penetrate, forming a "curtain."

How many radiators are needed per room

Installing a radiator made of two metals

Bimetallic heating radiator power table based on brand

It should be noted that when determining the power of heating devices for one or more rooms, the metal that the radiator is made of is completely irrelevant. The nominal power of either a single section or the entire device, in the case of a panel, is always indicated by the manufacturer in the documents that come with the product.

The manufacturer determines the bimetallic radiator section’s power.

Let us now attempt to compute the power of heating devices based on the area of the room. Using the S*100/P formula, we will utilize a room with a perimeter of 4.55 × 6.5 meters.It should be noted right away that these calculations are only accurate if the ceiling height does not surpass 2.7 meters.

Therefore, 4.5 * 6.5 = 29.25 m^2 will be the area of the room. Global Style 500 watts will be needed for the power of one section of the bimetal radiator (p), and 100 watts is the required amount of watts per m^2 for Moscow and the Moscow region.

Given the size of our room, we must determine the number of sections (k). This indicates that there are either one large or two medium-sized section radiators, or kcolism = s*100/p = 29.25*100/185 = 15.81 or 16 sections.

Let’s now determine the necessary number of sections made by the same manufacturer and powered by the same amount for a room of the same size that has ceilings that are higher than 2.7 meters. A height of 3 meters can be used for the calculated unit.

As a result, we must first determine the value of V, or the room’s cubature, which is equal to V = 4.5*6.5*3 = 88.5m3. Per cubic meter of space, 41 watts of thermal energy must be developed for the same Moscow and the Moscow Region.

For the room, this indicates that the total power required is p. = V*41 = 88.5*41 = 3628.5. This indicates that if the Global Style 500 185 W Bimetallic radiator has one section with power, then 3628.5/185 = 19.6 or 20 sections are obviously two radiators because one will be too heavy.

However, these calculations are only valid if the building is properly insulated and the room is free of drafts.

Brand/Model Power (Watts)
Brand A 1000
Brand B 1200

Selecting the ideal heating system for your house is essential for both efficiency and comfort. Bimetallic heating radiators are becoming a more popular option because of their capacity to distribute heat and their longevity.

The capacity of bimetallic heating radiators to keep your house at a steady, comfortable temperature is one of its main benefits. These radiators’ effective heat-transfer qualities guarantee that the entire space is sufficiently heated, creating a comfortable atmosphere even in the coldest months.

Bimetallic heating radiators are also long-lasting. These radiators, which are usually composed of steel and aluminum, have a high degree of corrosion and damage resistance, guaranteeing years of dependable operation with little upkeep.

The adaptability of bimetallic heating radiators is an additional advantage. These radiators are available in a range of sizes and configurations to meet your unique heating requirements, regardless of the size of your living area. They also offer flexibility and convenience of easy integration into both new and old heating systems.

To sum up, bimetallic heating radiators are a strong option for effectively and efficiently heating your house. These radiators offer comfort and peace of mind by distributing heat evenly, lasting a long time, and being adaptable. They also guarantee that your house stays warm and comfortable all year round.

Knowing the capabilities of bimetallic heating radiators is essential to our investigation into the heating and insulation of homes. These single-section radiators are strong, long-lasting, and reasonably priced. They warm your room effectively. Bimetallic radiators, in contrast to conventional ones, integrate several metals to maximize heat distribution and guarantee durability. Their ability to efficiently heat rooms is not compromised by their small size, which makes them an excellent option for any house looking for dependable warmth without going over budget.

Video on the topic

Calculation of the number of bimetallic radiator sections

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