The sizes of steel heating radiators

Maintaining the ideal level of warmth and comfort in your house requires selecting steel heating radiators in the proper size. An important factor in your heating system’s efficiency is these radiators. You can guarantee efficient and even heating of your house without wasting energy or going over budget by choosing the right size.

It’s critical to comprehend the variables that affect steel heating radiator sizing. The size of the room, the required heat output, the kind of heating system, and the insulation level of the home all influence how big of a radiator is needed. These considerations will help you choose the right radiator size to maintain a warm and comfortable home.

The size of the room in which steel heating radiators will be installed is one of the main factors to be taken into account. Bigger radiators are needed in larger rooms to provide sufficient heat distribution. On the other hand, smaller rooms require smaller radiators. Finding the ideal balance is crucial to preventing either under- or overheating.

Determining the required size of steel heating radiators involves calculating the necessary heat output, which is another crucial step. This computation is influenced by variables like the intended temperature, insulation, and the size of the room. You can make sure that your heating system runs effectively and gives you the comfort you require without wasting energy by precisely estimating the amount of heat output needed.

Moreover, the size of radiators required depends on the kind of heating system in your house. Radiator sizes will vary depending on whether your system runs on steam or hot water. It’s imperative to take these distinctions into account to guarantee efficiency and compatibility.

Finally, the amount of insulation in your home has a big impact on how big steel heating radiators you need. Because heat loss is reduced in well-insulated homes, fewer radiators are typically needed. On the other hand, larger radiators might be needed in poorly insulated homes to make up for the heat loss. Making the best decision requires an understanding of your home’s insulation.

Room Size (Square Feet) Appropriate Radiator Size (BTU)
100-150 4,000-5,000
150-250 5,000-7,000
250-350 7,000-10,000
350-450 10,000-12,000

Steel panel radiators: types and power determination

Steel panel radiators are a rival to the typical sectional heating units. Their greater heat transfer coefficient makes them more appealing than all sectional models with smaller dimensions. consist of panels where the formed strokes allow the coolant to flow. One, two, or three panels are possible. The second part consists of the corrugated metal plates, also known as the nut. A high degree of heat transfer of these devices is achieved at the expense of these plates.

Steel panel radiators come in various power and size ranges.

Multiple versions of the panel and nuting are combined to achieve varying thermal powers. Every choice has a distinct power. You must be aware of each of them in order to select the appropriate size and power. The following types of steel panel batteries are used in structures:

  • Type 33 – three -panel. The most powerful class, but also the most dimensional. It has three panels, to which three laying plates are connected (therefore 33 is indicated).
  • Type 22 – two -panel with two laying plates.
  • Type 21. Two panels and between them one plate with corrugated metal. These heating devices with equal dimensions have lower power compared to type 22.
  • Type 11. One -panel steel radiators with one layer of nuting. Have even lower thermal power, but also less weight and dimensions.
  • Type 10. In this type there is only one panel with the coolant. These are the smallest and lightest models.

Each of these varieties may vary in length and height. It goes without saying that panel radiator power varies depending on type and dimensions. Each manufacturer creates the tables in which the test results are entered because it is impossible to calculate this parameter independently. Each room’s radiators are chosen for these tables.

Steel panel radiator types

Determine the power

The heat loss of the room where steel panel radiators will be installed must be taken into consideration when calculating the radiators’ power. You can start with the SNiP norms, which standardize the amount of heat needed for a 1 m 3 heated area, for apartments housed in typical houses:

  • Premises in brick buildings require 34W per 1m 3 .
  • For panel houses for 1m 3, 41W goes.

Calculate the amount of heat needed to heat each room based on these norms.

For instance, the ceiling height in a 3.2 m by 3.5 m panel house room is 3 m. Find the volume: 3.2 * 3.5 * 3 = 33.6 m. 3. 33.6*41 = 1377.6W is the result of multiplying by the NRP norm for panel houses.

The average climate zone’s SNiP norms are shown. There are suitable coefficients for the remaining ones based on the typical winter temperature:

It is evident that the more external walls there are, the more heat escapes, so we must address heat loss based on their number. As a result, we consider the following: a coefficient of 1.1 for a single wall, 1.2 for two, and 1.3 for three walls.

You must compute the room’s heat loss in order to accurately calculate the panel radiator’s power.

Let’s modify for the sake of our example. There are two external walls, and the average winter temperature is around -25 o C. As it happens, 1378W * 1.3 * 1.2 = 2149.68W, or 2150W rounded.

It is also necessary to consider the kind of material, roofs, and which rooms are above or below, among other things. See the article "How to calculate the number of radiator sections" to find out the coefficients for this.

And we’ll use this figure as an example. As long as the house and windows have average insulation, the figure discovered is fairly accurate.

Calculation of Kermi radiators

Prior to calculating power, you must select the steel panel battery brand. Leaders are, of course, trustworthy. German steel radiators Kermi are nearly unbeatable today. As a result, we compute the power using the manufacturer’s tables.

Let you decide to install one of the new Kermi Thermi X2 Plan models. According to the table in which the capacities of all existing models are indicated, we find suitable values. You should not look for an accurate coincidence, look for a value that is slightly more than calculated (in heat engineering it is better to have at least a small reserve “just in case”). In the table suitable for our case, options are marked with red squares. Let the height of 505mm (indicated at the top of the table) is more acceptable for us). More than others are attracted by less long (1005mm) panel radiators 33. If you need even shorter, you can pay attention to models with a height of 605mm.

The thermal power calculation table for steel radiators by Kermi (Click to make the size larger)

Recalculation of the power of panel radiators depending on the temperature regime

However, the values in this table are reasonable for the system, which has the following parameters: feed temperature of 70 °C, return temperature of 65 °C, and room temperature of 20 °C. The temperature delta is computed as follows for these values: (75+65)/2-20 = 50 o C.

You must recalculate if your system’s parameters have changed. The Kermmi created a table containing corrective coefficients for these situations.

Recalculation table based on the heating system’s temperature (click to enlarge)

Assume a low-temperature system with the following parameters: 60 O C for the feed, 50 O C for the return, and 22 O for the room’s support. (60+50)/2-22 = 33 o C is the temperature delta that we count. The temperature of the water is found in a string in the table. Next, we find the temperature of the diverted water and finally arrive at the room’s temperature, which in our case is 22 o. A coefficient of 1.73 is present in this cell (highlighted in green).

We multiply the heat loss calculated for our location, which is 2150 W * 1.73 = 3719.5 W. Right now, we’re searching the power table for appropriate choices in this scenario (highlighted in green). Although there is a more limited selection, much more powerful radiators are still needed.

This is the entire process for figuring out how powerful panel radiators are. You can select steel panel batteries for any system and any room on it.

The room’s heat loss, the brand whose goods you wish to purchase, and the specifications of your heating system (feeding temperature, return temperature, and room temperature) are required to determine the power of panel radiators. You can identify the models that meet your requirements based on these data and power tables. Next, select the option with the best parameters (height, length, and depth) from these available options. That is the entire method.

The sizes of radiators of heating bimetallic. Heating radiators: height and length

September 14, 2016

These days, bimetallic heating radiators are typically found in country homes and apartments. This particular range of batteries stands out for its low price, outstanding performance, and attractive appearance. Residential buildings may occasionally be heated by steel, aluminum, or cast iron models. One important consideration when purchasing a heating radiator is its dimensions; pay attention to this.

Advantages of bimetallic heating radiators

This variety’s popularity can be explained in a very straightforward way. Although cast iron radiators are not very attractive, they are very dependable. It is also challenging to mount them. Aluminum batteries have a sleek, contemporary appearance. Nevertheless, this metal does not react well to oxygen contact in the coolant. As a result, aluminum radiators leak and fail quickly. Steel batteries have a longer lifespan. They do not, however, appear particularly attractive at the same moment.

The benefits of steel and aluminium radiators are combined in bimetallic versions. These batteries are ideal for today’s interior. They contain aluminum sections. Additionally, because the steel pipes that the coolant passes through them are long-lasting, they function for a long time.

What should be considered when choosing the size of the battery

Install radiators for heating, usually beneath windows. With this configuration, you can use the coolant’s energy as sensibly as possible. In light of this, selecting the size of heating radiators is standard.

The battery is positioned with at least 10 cm separating its upper edge from the protrusion. In this instance, the radiator should be positioned 8–12 cm above the floor. There is no efficient air exchange if these rules are broken in the vicinity of the battery sections. As a result, the radiator’s potential is not fully utilized. So, the height is the first thing you should consider when selecting a battery. Less than 20 centimeters should separate it from the protonal protrusion’s floor.

The dimensions of bimetallic heating radiators: height

In the manufacture of heating batteries, like any other equipment, of course, certain standards are observed. Bimetallic radiators (depending on the modification) according to the passport can have a height of 200, 350 and 500 mm. All these options are quite popular, and you can purchase them if necessary without any problems. However, the numbers are 200, 350 and 500 mm by the actual radiator height, but indicate only the distance between the centers of the input and output pipes. But the batteries themselves usually have a slightly larger length. What sizes of heating radiators in height will be the most convenient, you can find out if you add 8 cm to the center distance. Thus, a 350 battery with a marking will take approximately 430 mm under the windowsill, the model is 500 mm – 580 mm, 200 – 280 mm.

The width of radiators

By this indicator, the battery should be chosen as close as possible. The width of the radiator depends on the number of sections that can be different. The required number of such elements for one battery is calculated according to a special formula. It is believed that for heating 10 m 2 rooms required 1 kW of radiator power. The calculation formula for the required number of sections, so it looks like this: n = s x 100/q. In place S, you need to substitute the total area of the room in which the radiator will be installed. Value Q is the power of one section. The last indicator is not difficult to determine. The manufacturer usually indicates the power of one section in the technical passport. This indicator can be different, but most often its value is close to 180 watts (for models of 500 mm). 8 cm is a width that in most cases has one heating radiator section. The dimensions of the battery, thus, directly affect its power.

For example, we will calculate the heating radiator for a room of 30 m 2. In this case, the formula will be like this: 30 x 100/180 = number of sections. That is 16-17 pieces. The width of the radiator will be large – 16 x 8 = 128 cm. Radiators are installed under the windowsill usually in a special niche. Such a wide radiator may not fit in it. In this case, you just need to purchase two batteries for 8 sections. Each width will be 64 cm. When choosing the number of sections, among other things, it should be taken into account that in length the radiator should overlap at least 70-75% of the window opening.

The thickness of the battery

As a result, bimetallic heating radiator sizes can vary. Typically, they are 80 or 100 mm deep. There are occasionally 90 mm options available as well. The decision in this instance is based only on the owners’ individual preferences. A thicker radiator can be bought if the battery niche is very deep. It makes sense to purchase an 80 mm radiator if the wall and the window sill edge are in the same plane. In this instance, it will be simpler to cover up if needed.

The dimensions of cast -iron radiators

Standard Soviet batteries of this type had a height of 580 mm, rib width – 94 mm and a thickness of 140 mm. Many owners of houses and apartments still consider such models the most reliable. Therefore, cast iron radiators are still in demand today. Manufacturers, of course, noticed this and began to supply cast-iron radiators in retro-style to the market, which are distinguished by a very attractive design. If desired, you can buy, of course, such batteries. Their dimensions can be different. There are low, standard and high models of this type on the market. The approximate dimensions of cast -iron heating radiators of different types can be viewed in the table below.

The dimensions of batteries made of cast iron

Stylish cast-iron retro radiators frequently have short legs. Naturally, in this instance, their is taken into account when calculating height.

What are the sizes of steel heating radiators

These batteries are structurally distinct from bimetallic and cast iron batteries. Are steel radiators made up of a single rectangular panel? It has coolant-directed channels inside of it. Additionally, there are tubular steel radiators. They have an appearance similar to cast-iron models. Likewise, tubular batteries can be whole or divided into sections.

Steel heating radiators come in a range of widths and heights. Consider the thickness of the radiators before selecting any of them. The battery is more powerful the larger this indicator is. The number of panels and rows of nuting determines the thickness of the steel radiators. The final indicator may vary between 0 and 3. As a result, the typical thickness of a steel radiator is between 61 and 170 mm.

The number of sections used in a tubular heating radiator determines its width. Because of their unique design, these models are typically only found installed in offices or other administrative spaces.

Choosing the appropriate steel heating radiator size is essential for both heating and insulating your home. These radiators are essential to keeping your home at a comfortable temperature. Making the right size choice will guarantee that your house is heated effectively and won’t waste money or energy. The dimensions of the room, the insulation level, and the ideal temperature all affect how big of a radiator you need. Radiators that are too large may waste energy, while those that are too small may not adequately heat the space. You may attain maximum heating efficiency and save money on energy expenses by precisely determining the size of steel heating radiators needed for every room.

Aluminum models

There are heating radiators made of aluminum that come in various length and height measurements. However, these batteries with an interdose distance of 350 and 500 mm are the most popular choice. This is the height of about 80% of all aluminum models that are currently on the market. However, radiators with an interface distance of 20 to 80 cm are occasionally available for purchase.

Lately, producers have started to create highly intriguing aluminum battery skirting models. These types of heating radiators are incredibly small in size. It’s all about how insignificantly tall they are. These models can, however, be quite lengthy. If desired, there are some extremely intriguing vertical aluminum radiators available on the market right now. These models have a maximum height of two to three meters and a minimal width.

Radiators of this type, such as bimetallic ones, can have a depth of 8 or 10 cm. Most of the time, the aluminum battery section is 8 cm wide.

Features of installation of radiators

The sizes of bimetallic heating radiators, as well as cast iron or aluminum, thus should be selected as thoroughly as possible. Whatever dimensions, however, have a battery, of course, you need to install it correctly. To the wall, heating radiators are usually attached to the brackets. Before installing them, markings are made without fail. Mount radiators either strictly horizontally, or with a small slope in the direction of the coolant current. In the latter case, it is easier to remove air traffic jams from sections. Batteries can connect to the highways in three ways: from below, diagonally and side. In any case, an individual valve should be placed on each radiator. This allows you to repair the battery without the need to turn off the entire heating system in general. Also, the Maevsky crane (or some of its modern analogue) is also mandatory for each radiator).

How to choose radiators of steel heating

In the twenty-first century, steel-type heating devices are becoming more and more common. Essentially, steel heating radiators are installed in all owners’ homes, cottages, and individual projects.

Furthermore, steel radiators are a fantastic option for anyone needing to replace their heating system or construct suburban real estate. The decision in favor of these heating systems can be attributed to their high heat supply requirements and relatively low cost when compared to aluminum devices.

The popularity of devices

The majority of people inquire about selecting the best heating radiators prior to installation. What is the primary duty while selecting them? There are many different kinds of such systems in the modern world. This is fantastic because there is a wide range of options, but the buyer may feel uncertain due to this variety. Since most of these products are produced by numerous manufacturers, they differ in terms of design, color scheme, and other unique categories.

It is now acknowledged that steel radiators are the most widely used type in heating structures.

The equipment in steel heating radiators, which are used to warm and insulate apartments and homes, consists of two heated stainless steel sheets with a water space or waterplane for water. It is not advisable to place steel batteries in damp environments. This equipment cannot be installed in bathrooms or bathtubs as it will corrode.

The steel radiator apparatus

The choice of the manufacturer

Because these products can be bought and set at the best price with a unique design, the best steel heating radiators can be seen in almost all places of stay, including shopping centers and individual real estate. If you must choose a radiator manufacturer, you ought to ascertain the material from which the device was constructed.

A particular manufacturing process is preferred for equipment creation, including packaging, design, painting, and other materials.

Steel radiator prices are determined by their technical attributes; however, because of the manufacturer, there may be variations in other aspects as well, like size and brand. Although domestic steel battery systems will cost less than foreign ones, given that their operating parameters are nearly identical, is there really any reason to pay more?

To choose wisely when purchasing a heating radiator. The following details need to be noted:

  • The uniformity of heating depends on the depth and height of the heating device;
    is equipped with a Maevsky crane, which serves as an airborne heating system. It will also help to prevent various dangerous situations, accidents in which this crane will be welcome. Also the need for hook water descent;
  • If the installation under the windows, then the size is shorter than the window opening within 70%;
  • If there is a desire in the practicality of equipment, you need to purchase an apparatus with an option of a temperature regime regulator. This criterion turns on either manually or automatically for the temperature of the radiator .

The steel radiators’ dimensions

Types and types

Steel radiators come in two varieties, the most popular of which is the panel radiator. less common radiator made of tubes. Panel radiators are those that are mounted on the wall or on the vaginal surface. In addition to having higher heat supply factors, this kind of steel radiator is very aesthetically pleasing.

A specific process is followed in the manufacturing of panel radiators: two plates are cooked simultaneously, creating a heat stream in the process. The primary welding and production moment in this production is spot welding since the thickness reaches 2 cm. The system’s benefit in selecting an appropriate size. Benefits from connecting radiators as well. This relationship is distinct, with just three being the most well-known: standard installation done from the side and below.

Panel radiator made of steel.

Types of connection of the radiator

If the radiator’s lower connection is made. It will have a unique thermoregulation valve installed, which will instantly supply the required temperature.

A typical heat circulation circuit in the space is utilized to connect a steel radiator; this type of connection is inexpensive, undetectable, and unnoticeable.

A larger supply of heat will result from creating multiple panels. It is also possible to mount a range of metal alloys to them; this will increase the base’s size and produce heat.

Types of battery connections

These heating systems do, however, have some unique characteristics, such as weight. This criterion indicates that they are capable of being fairly heavy, on par with cast-iron attitudes. Additionally, since the volume of water will be negative, there will be less thermoregulation and consequently less heat transfer. The radiator is thicker than cast iron, with a maximum thickness of 160 mm. Additionally, it is challenging to clean the pollution from the inner shell of these batteries.

Reminiscent memories of cast-iron batteries are aided by pipes. Their external parameters are comparable. Most often, Stalin-era residential and administrative buildings are where cast-iron battery installations take place. Resistant to intense atmospheric pressure up to ten times its own weight, with a maximum width of two centimeters and a reach of over one hundred centimeters. can also be peculiar and sectional.


This heating system was created by Robert Zender. Originally intended to serve as a cooling base for automotive motor components, it evolved into heating equipment over time as a result of technological advancements. These products started to be used in industry and in this field of human endeavor decades later.

It’s important to pinpoint the special requirements and technical details of steel heating batteries.

  • For the production of such heating, high -quality metal and solid metals are used, which can give resistance to various shocks and loads. Such equipment is most successful for private construction plans, the service life in this case increases, since in individual buildings less stops and loads than in multi -storey buildings;
  • Simple technologies and techniques are used, thanks to this, the price of such products is optimal, which allows you to purchase any type of discretion, which is suitable for various types of buildings;
  • The possession of stability to various attacks, because welding occurs openly, without different chemicals, therefore, hydraulic loads are not terrible;
    The outer shell is the main distinctive feature of such batteries, since iron can be painted in various color scheme, which is sold in stores, can be compacted by sections, thanks to the steel, a building of various scales can be heated;
  • a universal tool can be mounted on any mounts, but they are present in the kit, so this equipment can be independently and clearly mounted on your own.

Keeping your house cozy and energy-efficient requires selecting steel heating radiators that are the proper size. It’s important to get the radiator size just right because it directly affects the amount of heat it produces. If it’s too big, you’re wasting money and space, and if it’s too small, your house won’t be warm enough. The dimensions of the room, the insulation, and the ideal temperature are all important considerations when choosing the right size.

The size of the room is one of the main factors to be taken into account when choosing steel heating radiators. Bigger radiators are needed in larger rooms in order to heat the area sufficiently. It is important to determine how much heat each room needs. This can be achieved by determining the room’s volume and heat loss while taking into account factors like the quantity of windows, doors, and insulation in the space. You can choose a radiator that best suits the unique heating requirements of every room in your home by being aware of these factors.

When choosing the size of steel heating radiators for your home, insulation is an important factor to take into account. By minimizing heat loss, well-insulated spaces enable you to use fewer radiators to achieve the desired degree of warmth. On the other hand, larger radiators might be necessary to make up for the increased heat loss in your house if it has inadequate insulation. Thus, making an investment in adequate insulation can potentially save you money over time by increasing energy efficiency and influencing the size and number of radiators needed.

The ideal temperature for every room is another important consideration when choosing the size of steel heating radiators. The amount of heat that the radiator must produce depends on the temperature you wish to keep. There might be variations in the required temperature in different rooms. For instance, you might prefer the living room to be warmer than the bedroom. You can select radiators that best suit the temperature requirements of each room in your house by taking into account the ideal temperature for each space.

Overall, maintaining a cozy and energy-efficient home depends on selecting the proper size for steel heating radiators. You can choose radiators that provide the required heat output without wasting energy or space by taking into account factors like room dimensions, insulation, and desired temperature. Long-term energy bill savings can be achieved by taking the time to estimate your heating needs and select the right radiator size, in addition to keeping your house toasty warm.

What type of heating you would like to have in your home?
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Anna Vasilieva
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