What is the difference between radiators of heating bimetallic and aluminum

Making the right heating system choice is essential to keeping your house warm during the cold months. While radiators are essential for distributing heat throughout your room, not all radiators are made equally. Indeed, bimetallic and aluminum radiators differ greatly, with each having advantages and disadvantages of its own.

Bimetallic radiators are made of two different metals, usually aluminum and steel. Strength and heat conduction are balanced by this combination. Durability and stability are provided by the steel core, and effective heat transfer is ensured by the aluminum outer layer. Bimetallic radiators use less energy because of their design, which enables them to heat up rapidly and evenly, providing warmth throughout the space.

Aluminum radiators, on the other hand, are extremely responsive to temperature changes and lightweight because they are composed entirely of aluminum. They are a popular option for contemporary homes due to their streamlined appearance and quick heat conduction. Aluminum radiators heat up quickly, giving the space almost instantaneous warmth. However, they might need more frequent maintenance and their lightweight design might not be as strong as bimetallic radiators.

The ability of bimetallic and aluminum radiators to retain heat is one of their main distinctions. Longer heat retention times are typical for bimetallic radiators, even after the heating system has been turned off. This implies that they can keep your home warm day and night even if the heating system is not actively operating.

Making an informed choice when choosing the best heating system for your house can be aided by knowing the distinctions between bimetallic and aluminum radiators. Considerations should be made for elements like maintenance requirements, heat conduction, and durability. You can make sure that your house remains warm and cozy regardless of the outside weather by carefully considering the advantages and disadvantages of each choice.

Bimetallic Radiators Aluminum Radiators
Built with two different metals for durability and efficiency. Constructed solely from aluminum for lightweight design.
Stronger and more resistant to corrosion. Prone to corrosion over time.
Can withstand higher pressures, making them suitable for larger heating systems. Suitable for smaller heating systems due to lower pressure tolerance.
More expensive upfront cost but may save money in the long run due to durability. Generally cheaper upfront but may require more frequent replacements.

What is the difference between the bimetallic radiator and aluminum?

Aluminum heating batteries

In order to establish a cozy microclimate, every room in a private home or public apartment has a heating system, of which a radiator is a necessary component. One way to connect such a device is to an independent boiler or the central heating network. Convection or heat radiation, on the other hand, heats the rooms as a result of coolant moving through pipes and radiators and heating the surrounding air.

Aluminum heating batteries are currently the best option in terms of both quality and cost. Additionally, they can be utilized for both individual home heating and the centralized heating of multi-story buildings. However, aluminum radiators are extremely susceptible to the coolant’s acidity and alkalinity levels.

Panel or sectional aluminum radiators are both structurally possible. Products are typically arranged on store shelves in sections that are connected by nipples. To create tightness, special gaskets are installed in the joints between adjacent elements.

The working pressure of the aluminum radiator is another crucial indicator. The maximum pressure that a typical aluminum battery can tolerate is 18 atmospheres. Manufacturers are working hard to improve these devices, though, and they have reached a maximum pressure indicator of 25 atmospheres. This factor is particularly important to consider when selecting radiators for homes with central heating.

Positive aspects of the aluminum battery

An item made entirely of aluminum alloy is an aluminum battery. Because such materials produce finished goods that are incredibly strong and light, they are simple to transport and install. However, in addition to this, they offer several other benefits:

  • compact sizes – in comparison with cast -iron analogues, aluminum batteries are much smaller in width;
  • the maximum level of heat transfer, which is inherent in all aluminum products;
  • a high working pressure indicator, which is very important for the quality of the heating system;
  • The ability to gain a battery from individual sections – the more such elements in the battery, the more space it can warm;
  • high level of economy, which is achieved due to the effective heat transfer of the material;
  • the ability to adjust the temperature indicators due to the equipment of the device by the thermostat;
  • aesthetically attractive appearance of painted aluminum.

If the price of the product is the primary factor in selecting a good battery, then an aluminum radiator is significantly less expensive than a bimetallic analog.

Disadvantages of aluminum radiator

Since nothing is perfect, aluminum radiators were also impacted. If you take into account the drawbacks of aluminum batteries. I want to be mindful of the following parameters:

  • In the aluminum battery, the coolant with neutral indicators of acidity and alkalis should circulate;
  • Each radiator must be equipped with an air vent to remove air plugs;
  • The connection of aluminum radiators should be carried out by pipes of the same material;
  • the possibility of the appearance of leaks in places of docking of individual sections;
  • The uneven distribution of heat, since its main part is concentrated on the ribs of the product;
  • relatively small operational resource up to 15 years.

Because of the material’s fragility, installation errors also frequently result in radiator breakdowns. It is therefore preferable to assign professional installation work to others.

Bimetallic heating radiator

The primary characteristic of the bimetallic battery is its manufacturing process, which employs a special technology that enables the blending of materials with various compositions and properties. These metals are aluminum and steel. The heating device has integrated the advantageous features of both steel and aluminum radiators because of this combination. These batteries are thought to be the best options for usage in both autonomous and centralized heating systems.

Such a product is constructed structurally from steel pipes that are strung with aluminum sections. The application of a bimetallic radiator in any system heating system was made possible by this technology. The steel interior of the device can sustain any pressure applied by the central heat network, and the aluminum sections heat the space rapidly.

Taking into account the manufacturing process, the cost of this product is slightly higher than that of an aluminum equivalent due to the complexity of the bimetallic radiator technology. Well-known producers employ high-pressure technology. Point welding may not be utilized in order to lower the final product’s cost, but this has little impact on the battery’s strength.

What is the advantage of the bimetallic battery?

The product’s negligible internal volume is the first item I would like to draw attention to. which reduces the need for coolant when heating the space somewhat. Additionally, bimetallic radiators offer the following benefits:

  • the possibility of using a coolant with any level of acid-base balance;
  • The bimetallic battery is able to withstand very large pressure;
  • To connect the sections, only reliable paronite seals are used;
  • The bimetallic radiator has a high margin of strength;
  • Thanks to the use of special staining technology, the finished product does not lose its external attractiveness throughout the entire service life;
  • long -term operational resource, which may exceed 25 years through the use of steel pipes;
  • high level of heat transfer, achieved by using aluminum ribs in the design of the heating battery.

Easy installation These radiators, along with aluminum products, are popular because of their attractive appearance, the ability to add additional sections directly at the installation site, the bimetallic battery’s slight weight, and other features.

How to distinguish a bimetallic radiator from aluminum?

Despite appearances, the aluminum battery and its bimetallic counterpart are nearly identical. However, this assertion is untrue and may influence the selection of an inappropriate radiator. Additionally, there is a chance that the heating device won’t last very long if you choose to purchase the least expensive model in an effort to save money. As a result, you must comprehend how a bimetallic radiator differs from an aluminum battery.

  1. First of all, I would like to focus on the external similarity of the bimetallic and aluminum products. In shape, they resemble a flat rectangular battery painted white. If we consider the number of sections, then both batteries can be equipped with the necessary number of elements depending on the area of the heated room.
  2. The main difference between the bimetallic and aluminum radiator is concluded inside the device. Aluminum is metal, light enough and soft, so the batteries made from it can be destroyed in conditions of constant stresses. Simply put, the pressure of the coolant inside the system should not exceed 12 atmospheres. In turn, bimetallic radiators are able to withstand almost 3 times more pressure.
  3. Also, such batteries differ in weight. The mass of steel slightly more aluminum and therefore 1 section of the bimetallic radiator by about 500 grams is heavier than an aluminum analogue. This difference is particularly noticeable in products with a large number of sections.
  4. Well, the main difference between the bimetallic and aluminum battery is the service life. Aluminum radiators are significantly inferior in this matter by bimetallic batteries. The service life of the aluminum product reaches 15 years. In turn, the combined unit has an operational resource for more than 25 years, which is important for any heating system.

From the foregoing, we can infer that aluminum batteries are the most cost-effective and high-quality option for building private homes, while bimetallic radiators are appropriate for residential buildings. plus contemporary goods complete with all the components needed for a do-it-yourself installation, including wall brackets and an air vent. As a result, you can install aluminum and bimetallic radiators yourself without the assistance of a professional.

  • Author: Leonid Grigoryevich Chernukhin

How aluminum radiators differ from bimetallic and which?

23 September 2016

The topic of replacing radiators becomes prominent after the heating season ends. If the batteries in your apartment are cast iron, it’s time to replace them with more contemporary models and give them a well-earned rest. When installing a heating system, private developers frequently struggle to choose between cast iron, aluminum, or bimetallic radiators because each model has pros and cons of its own. When a customer follows the advice of salespeople in stores that sell the related goods, he might not know what to do. It makes sense to compare radiators made of aluminum and bimetallic materials if you also resolve this problem.

It comes down to durability versus efficiency when deciding which type of radiator to use for heating your home: bimetallic or aluminum. Bimetallic radiators are a good option for long-term use because they are resilient and can tolerate significant pressure and temperature fluctuations. However, compared to bimetallic radiators, aluminum radiators may not last as long because of their lighter weight and faster rate of heating. Thus, aluminum radiators are excellent at providing quick and effective heating, but bimetallic radiators are the better choice if longevity is your top priority. Selecting the heating system for your house should take your needs and budget into account.

Comparison of aluminum and bimetallic batteries

Aluminum radiators are attractive and well-maintained; they consist of several sections joined by nipples. Gaskets in between the sections give the appropriate tightness. The heat area is increased to 0.5 m 2 by the ribs, which are located from the inside. These batteries are produced using one of the current technologies. For instance, the extrusion process yields lighter, less expensive products, but their quality isn’t up to par. In Europe today, this methodology has already been abandoned.

If you are thinking about the question of how bimetallic heating radiators differ from aluminum, then you should pay attention to the fact that the latter can be performed by the method of casting. Products are more expensive, but will last a longer time. Bimetallic batteries are made using two different metals. The case has ribs based on an aluminum alloy. Inside the body contains a core of pipes, hot water flows along them. Such pipes are made of copper or steel, but the first option is less and less today. Many consumers also think about how to find out the radiator aluminum or bimetallic in front. The diameter of the latter is less compared to aluminum models. Therefore, there is a higher probability of their clogging. When consumers consider the advantages of bimetallic radiators over aluminum, they primarily note a more attractive appearance. After all, all the components of such products are hidden inside, so the design is able to satisfy the most exquisite requests.

Which batteries are better in the issue of heat

In order to answer the question of how aluminum radiators differ from bimetallic ones, it is important to compare the intensity of the heat returns as well. In this case, aluminum radiators move forward. A single section has a thermal energy capacity of at least 200 Watt. Radiation is how half of heat is released. A second component is convection. You can raise the amount of heat returns with battery ribs. Aluminum is unmatched in this regard. Its minimum heat inertia is one of its many characteristics. After 10 minutes, the interior of the house or apartment will be warm if you turn on these batteries.

When it comes to private construction, aluminum radiators are a cost-effective option. These days, bimetallic and aluminum heating radiators are becoming more and more common; the article explains their features. The latter vary in heat depending on the model and manufacturer. Comparing this parameter to an aluminum radiator, it will be lower. This is because, in comparison to an aluminum battery of the same size, heat transfer is reduced by 1/5 in the steel core.

Differences in aluminum and bimetallic batteries in terms of the ability to undergo hydrouches

Aluminum is on the second together in this situation. Its working pressure ranges from 6 to 16 atmospheres, and in certain models, this parameter hits the mark at 20 atmospheres. It is not a very high working pressure. Installing these radiators as part of a central heating system may cause products to break down due to the high pressure. Hydrodar has the ability to cause the battery to burst, resulting in a hot flood in the apartment. As a result, don’t take a chance when installing an aluminum radiator in a multi-story apartment.

If you’ve ever wondered how bimetallic radiators differ from aluminum, it’s important to compare how well these products can withstand heavy loads. Strong steel cores that are ready for extreme pressure characterize bimetallic batteries. These goods are resistant to pressures ranging from 20 to 40 atmospheres. Thus, when there is a possibility, it can be claimed that bimetallic radiators are more dependable at unstable pressure.

For reference

When selecting a battery for an apartment that is heated by a central heating system, the aforementioned parameter is crucial. This parameter cannot be referred to as a negative if you intend to purchase a radiator for a private residence because the local network is not under excessive pressure.

Which radiator to choose from the point of view of the coolant

Property and apartment owners frequently want to know how aluminum radiators are different from bimetallic ones. It is important to examine this matter from the perspective of the coolant as well. Water is just a treasure to aluminum because it can participate in chemical reactions. It has so many chemical impurities in it that when batteries are operating, the walls may become exposed to corrosion. It is therefore wise to wait for problems if the pH level of the water flowing through the system is higher than 8 units. However, it is just not possible to keep an eye on these parameters when using the central heating.

Aluminum can release hydrogen even in the midst of a chemical reaction, which can lead to the formation of a fire hazard. As a result, periodically setting out the air from such radiators is required. The steel pipes found in the bimetal product’s core are less picky about the water’s quality. Steel is not as chemically active as aluminum alloys, which explains this. Such materials will eventually experience corrosion, but not very quickly. Manufacturers apply a protective layer to the surface among other things. Stainless steel is occasionally used in the manufacturing process, although this raises the cost of the radiators.

Selection of radiators by the temperature of the coolant

These days, bimetallic heating radiators made of aluminum are installed fairly frequently. Before making such a purchase, you should find out which of these products can withstand exposure to extremely hot water. An average of 110 °C is all that aluminum can tolerate. This feature reaches 130 ° C for bimetallic radiators, so these goods prevail.

Reliability and durability

In order to answer the question of how aluminum radiators differ from bimetallic ones, you must first realize that hydraulic jackets, corrosion, and sudden, drastic temperature changes will all damage aluminum products. As a result, leaders in the reliability category are once more products of two metals, combining the best attributes of each. These products are built to last longer than 20 years, of course; in this instance, we are discussing high-quality items from well-known brands. The difference in service life is half for aluminum radiators. They are prepared for ten years of service following installation.

Comparison on the simplicity of installation

Aluminum and bimetallic are lighter than cast iron and require less effort to install comfortably. Strong brackets are not necessary for fastening because the plasterboard wall can support the small weight. If the summarized pipes are composed of plastic, installation can be completed with just shaped components and a set of keys. However, experience has shown that bimetallic batteries are still simpler to install because steel is a hard metal, unlike soft metals like aluminum, which can be bent.

Completion on prices

It is worthwhile to take these products into account when comparing prices if you have any questions about the differences between aluminum and bimetallic radiators. The second choice is 1/5, and occasionally 1/3 is more expensive than items made of aluminum. Due to this notable distinction, Bimetall is currently less common among private consumers because it is not widely accessible. Because bimetallic devices have a higher hydraulic resistance, more energy is needed to pump water, which raises operating costs.

The selection of a radiator for a specific heating system

After looking at the radiators’ primary features, we can determine which model is best for a given system. When using the central heating, the pressure inside can fluctuate significantly; occasionally, the mark reaches unaffordable levels and the hydraulic boards happen. Throughout the heating season, the temperature will fluctuate and may even change in a single day. There is no need to discuss an acceptable pH level because the coolant’s composition is the same, containing both abrasive particles and chemical impurities. On the basis of all of this, one could argue that in such systems, it is preferable to reject aluminum batteries.

In the church, never do this! You most likely do not behave in the same way as expected if you are unsure of whether you are acting appropriately in church. This is the list of appalling.

Put an end to all stereotypes: a girl who suffers from a rare genetic disorder succeeds in the fashion industry. Melanie Gaidos is this girl who made a big splash in the fashion industry by upending silly stereotypes and shocking and inspiring others.

This is really amazing people, these are 13 signs that your husband is the best husband ever. Unfortunately, decent husbands do not appear out of nowhere. You can with if your second half makes these thirteen things.

15 cancer symptoms that most women overlook Since many cancer symptoms are mistaken for those of other illnesses or ailments, they are frequently disregarded. Observe your body. If you become aware of it.

At thirty, what does a virgin look like? It’s interesting to note that some women did not engage in sexual activity until nearly middle age.

Why is a tiny pocket on jeans necessary? Although everyone is aware that jeans have a tiny pocket, not many have considered the potential use for him. Remarkably, at first he was just a location for XP.

Key differences of bimetallic radiators and aluminum batteries

Frequently, you have to watch as the customer stands in front of the rows of heating radiators, lost in thought and unsure of where to look. Then obnoxious sellers compliment pricey products and use technical jargon, perplexing the bewildered customer. Today’s consumers typically select aluminum or bimetallic radiators because they are affordable, small, and contemporary.

Aluminum batteries: for and against

There are two methods for making radiators. Casting sections under pressure comes first. The final products have different shapes, a consistent internal stress distribution, and can withstand mechanical loads and water drivers.

Squeezing blanks through the matrix (extrusion) is the second method. By pressing, a number of extruded blocks are joined to the battery. These products are inexpensive, but their operational indicators are significantly lower than those of cast. The extrusion method is not employed in Europe.

The size of batteries made of aluminum

Important information

An alloy is used in radiators to create silicon, or Silumin, and aluminum. Additionally, Russian manufacturers use alloys with reduced reactionary characteristics, taking into account the quality of the water in our heat systems. Compared to their import equivalents, these batteries have a far longer lifespan.

Please take note that public utilities add specific chemical additives to the water in an attempt to minimize heat loss and maintain the high temperature of the coolant in the centralized system. Batteries are quickly destroyed by the aggressive liquid’s active reaction with aluminium.

The second crucial detail is that reinforced polypropylene pipes should be used to connect the radiator to the heating system. When aluminum and another metal are directly connected in a pipeline, corrosion is intensified. This process is accelerated by hot water.

Vitting through plastic and metal pipes

Rubber seals are used to join radiator sections to one another. The gaskets’ composition is irrelevant if water serves as a coolant. However, rubber will rapidly lose its usability in an antifreeze system that uses glycerol, ethylene glycol, and propylene glycol (such as "Dixis," "Hot Blood," "HNT," and "AUT-EKO-30"). It is preferable to buy radiators in this situation along with a pair of parony.

Advantages of aluminum batteries

  • High heat transfer. Batteries quickly warm up the room.
  • The ability to add and reduce the number of sections (in cast radiators).
  • High operating pressure. In standard radiators, it is 7-18 atm. In enhanced models – 25 atm. For example, in private houses, the pressure in the system usually does not exceed 7 atm.
  • The ability to adjust the temperature – today many models are equipped with thermostats.

The aluminum radiator’s thermostat

  • Compactness and small weight. Batteries take up slightly space, they are easy to transport and install. The weight of one section does not exceed 1 kg.
  • Low price. The installation of new aluminum radiators or the replacement of old ones will cost a third cheaper than bimetallic.
  • Modern design. Aluminum batteries will fit into any interior.

The modern interior will look fantastic with an aluminum radiator.

The disadvantages of aluminum

  • Dependence on the quality of the coolant. If the level of pH of water is above 7-8, you can expect an ambulance of metal, especially in places of joints. When deciding to choose bimetallic or aluminum heating radiators, it should be considered which liquid will circulate through the system.
  • Leaks in sections conjugation sites.
  • The need to install an air vent. Hydrogen accumulates in batteries, which must be periodically launched. You can not check the presence of gas with a lighted match. If there is no polymer layer on the inner walls of the aluminum sections, it is strictly forbidden to close valves on the supply pipes.

Aluminum radiator with air vent

  • Short service life (maximum 15 years).
  • The installation of radiators should be made by experts, since the errors in the installation lead to the rapid failure of the devices.

Features of bimetallic radiators

Two metals are used in the production of these products: aluminum and steel (the word "bi" means "two"). The component is a steel pipe that has been forcefully poured into an aluminum shirt. Steel components are joined to the pipeline so they can withstand pressure spikes and effectively fend off corrosion. High heat transfer is provided by the aluminum coating. Nipples are used to connect different sections to one another.

Aluminum-encased steel tube

The pluses of bimetallic batteries

  • Strength and long service life (more than 25 years) due to the internal steel pipe. This is the main difference between bimetallic radiators and aluminum.
  • High heat transfer. A small amount of energy is spent on warming up the radiator itself. Heat almost immediately begins to be transferred to the room.
  • Working pressure up to 40 atmospheres.
  • The maximum coolant temperature is 130 degrees (in aluminum batteries – 110).
  • Persistent coating. Staining is carried out in two stages: first the product is completely immersed in a coloring solution, after which a polymer layer based on epoxy resin is sprayed. Such processing not only gives the battery aesthetic appearance, but also increases its tightness.
  • Simplicity of transportation and installation. You can increase the number of sections on the spot.

Crucial! Certain bimetallic models are segment-free and feature a single steel core. These products have the benefit of not leaking and withstanding high pressure.

The disadvantages of the bimetal

The heat of the bimetal below is what distinguishes bimetallic radiators from aluminum radiators. This indicator is greatly decreased by steel core.

Bimetallic batteries are roughly 30% more expensive than aluminum. Increased operating costs: Since bimetall has a larger hydraulic resistance, more energy will be required to pump water.

Steel components corrode when batteries are not operated properly. This occurs if the system’s water supply is exhausted at the conclusion of the heating season. Steel rusts when it comes into simultaneous contact with air and water.

The product’s service life is shortened and the chance of clogging is increased due to the iron pipe’s narrow passage.

Because aluminum and steel have different coefficients of thermal expansion, the radiator will eventually start to make distinctive noises. There is no risk here.

Comparison of aluminum and bimetallic radiators

  • Externally aluminum and bimetallic radiators are similar – these are metal rectangles with flat ribs painted in neutral tones. The number of sections of both of them is from 6 to 12. The average heat transfer of the devices does not differ much – from 180 to 200 watts. But the use of devices has its own characteristics.
  • Aluminum batteries are installed where maximum heat transfer is required with low pressure and good quality of the coolant, namely in private houses. You can put in an autonomous system and bimetallic sections, but it will be an unjustified waste of money.
  • Bimetall devices were created taking into account the characteristics of domestic centralized heating systems. The steel filling of the batteries withstands frequent pressure drops in pipes, hydrodynamic blows, aggressive impurities in the coolant. Therefore, bimetallic radiators should be installed in the central heating system.

Lastly. When purchasing radiators, it is preferable to spend more money on well-known brands. The equipment won’t last long if the production technology is not followed. Since the correct installation of the batteries is essential to the operation of the entire heating system and the production of heat in the house, it is imperative that experienced specialists perform the installation.

For your home heating system to operate effectively and efficiently, selecting the correct radiator is essential. A few significant distinctions between aluminum and bimetallic radiators can be seen.

Bimetallic radiators are composed of two layers: an aluminum inner layer and a steel outer layer. They are strong and resilient due to their construction, which enables them to withstand extreme pressure and temperature changes. They are perfect for use in corrosion-prone areas or heating systems with harsh water conditions.

Aluminum radiators, on the other hand, transfer heat very effectively and are lightweight. They enable precise temperature control and energy savings because of their quick heating and cooling cycles. However, because they are more prone to corrosion, they might not be appropriate for systems with aggressive water or high pressure conditions.

Bimetallic radiators typically respond more slowly than aluminum radiators in terms of heat output. This implies that they take longer to heat up and cool down, which may have an effect on the house’s general comfort level. Aluminum radiators provide quick and even heating throughout the room because of their rapid heat transfer capabilities.

Both kinds of radiators are aesthetically pleasing and can be combined with any interior design thanks to their wide range of styles and finishes. While aluminum radiators frequently have sleek, contemporary designs, bimetallic radiators might have a more conventional appearance.

The decision between bimetallic and aluminum radiators ultimately comes down to variables like water quality, pressure levels, needed heating, and individual preferences. To choose the best choice for your home’s heating requirements, think about speaking with a heating specialist.

Video on the topic

Aluminum or bimetallic radiators for and against?

What type of heating you would like to have in your home?
Share to friends
Anna Vasilieva
Rate author
Add a comment