Radena radiators are just the case when it is not clear what category to classify them into. The owners of the company are Italians, the head office is in Italy, and they are produced at the WANGDA Group plant, which is located in China. So whether the radiators are Chinese or Italian, decide for yourself.
Regardless of geographic location, the quality of these radiators is decent. This is talked about not only by consumers, but also by people who do installation. Not a single negative review from them. A little about what makes these Italian-Chinese radiators so good.
Technical characteristics of Radena radiators
Raden radiators are made using injection molding and treated with an anti-corrosion compound.
Brand products are manufactured using high pressure casting technology. This method allows you to create strong and durable radiators. After testing each section for leaks, it undergoes anti-corrosion treatment and is coated with epoxy powder paint in several layers. The result is a smooth surface, the color does not change over time. Individual cells are assembled into batteries with different numbers of sections. Steel nipples and paranitic gaskets are used for connections.
The effective number of sections depends on the area of the heated room. The manufacturer offers from 4 to 12 elements. By special order, batteries of 35 sections are manufactured.
Raden heating radiators are equipped with shut-off valves that regulate the heat supply. The design helps control heating costs.
Advantages and disadvantages
Raden radiators are primarily attractive due to their aesthetic design. Even without knowing about their technical characteristics, buyers stop at the products, attracted by the smooth surface and thin lines. The sections have vertical fins that enhance convection currents. Among the main advantages of the products:
- Cast radiators are reliable. They have one weld seam.
- The internal and external surfaces of the products have undergone corrosion treatment and two-stage painting.
- Materials safe for human health are used in production.
- Aluminum and bimetallic batteries provide high heat transfer.
- The equipment is resistant to pressure and water hammer.
- The durable coating allows the batteries to be used in heating systems with a pH value of 6.5-9.
- Painting is carried out in an even layer, it does not fade under the sun's rays.
Raden radiators can be installed in a central heating system instead of cast iron ones, where water hammer is possible.
At the factory, products are packaged in plastic film and cardboard boxes. Goods are transported to stores without damage.
Flaws:
- Aluminum models are sensitive to the condition of the coolant. They are not recommended for multi-storey buildings with central heating.
- The cost of Italian brand products is not available to all buyers.
Heating devices have received many positive reviews. They are recommended by experts and homeowners.
Radena products are radiators that can be installed in residential, commercial, industrial or office spaces. They comply with safety standards adopted in Europe and Russian standards. Sectional batteries are designed for installation in single-pipe and two-pipe closed heating systems.
Features of Raden technologies
First, let's talk about aluminum radiators. Their first and very important feature is the shape of the horizontal and vertical collector - a wide ellipse. This shape creates the least resistance to the flow of coolant, so a lot of it passes through, and the heat transfer of the sections is good. At the same time, the collector itself experiences less load, which helps to increase reliability and service life.
The second feature is the thickness of the walls of the vertical tubes: for this manufacturer it is always more than 1.9 mm, which is comparable to the thickness of the pipes for supplying coolant. And this is another plus for strength and reliability.
They guarantee warmth and comfort for many years
Radena bimetallic radiators are no less reliable. It is full bimetal, with thick-walled steel manifolds. Moreover, high-carbon steel is used, which is why the pH value can vary within very wide limits: pH from 6 to 10.5.
Third feature: two-stage painting. First, all sections undergo pre-processing. They are cleaned, then treated with degreasing compounds, preparing the surfaces for painting. Next, each section inside and outside is covered with a layer of paint (anaphoresis technology). This is protection against corrosion. Please note that all surfaces are treated. Inside too. Finding a second company that paints the inside of radiators will be very difficult. Then another layer of epoxy powder paint is applied to the outside. Spraying occurs in an electrostatic field, which ensures high durability of the coating.
All reviews are positive. It's just hard to believe
The painting is very reliable, does not fade over time and does not change color, does not peel off, there are no defects - this is according to the installers. The painting is uniform on all sides. Sections can be disassembled and reassembled, the appearance does not suffer, chips and cracks do not form.
Next are the “little things” that add advantages in favor of radiators:
- Intersectional gaskets are graphite, self-centering. Therefore, during assembly/disassembly, the radiator is always level. Never leaks.
- The carving is deep and smooth, not filled with paint.
- The ends are always already cleaned. Take it out of the package and you can assemble it.
- The unwinding force is stable, above 50 Nm. Very reliable and high quality build.
- The radiators are packed in bubble wrap, the boxes are reinforced on the sides and corners, so damage during transportation is very rare.
All these nuances seem insignificant, but speak of high quality. And all the “little things” give the burst pressure for aluminum radiators - 52-55 atmospheres. The result is a stable clientele and no complaints.
Scheme of coolant flow in bimetallic radiators with bottom connection
It looks a lot like a promotional article, but the quality is really high. The information given above is not on the official website (some of it is about painting, but not all of it). Apparently, they are trying to protect subtleties from competitors. Data taken from installers' reviews (on third-party resources).
The popularity of Rodena heating radiators is evidenced by the considerable number of fakes on the market. If you decide to buy this particular brand, either find an official representative, or pay close attention to the details of packaging and appearance. This includes stickers in the right place and matching the barcode.
Types of Raden radiators
Aluminum radiators are often installed in residential buildings.
The company's heating battery models are divided into two types:
- aluminum;
- bimetallic.
Aluminum products are used mainly in residential buildings, and bimetallic structures are universal.
Aluminum
The best option for using aluminum radiators is heating a private home and low-rise buildings. The batteries are characterized by maximum heat transfer, low weight and reliable operation. Design features are:
- thick walls of the vertical channel;
- cross-section of the collector in the form of an ellipse;
- smooth fin profile.
The batteries are designed for a coolant temperature of 110°C, pressure up to 16 atmospheres. They are sold with an even number of sections.
Bimetallic
The operating pressure of bimetal radiators is 25 atmospheres.
The product is characterized by increased strength and resistance to high pressure - the operating pressure is 25 atmospheres. The outer part of the structure is made of aluminum, and the inner part is made of steel alloy. This combination makes the product resistant to corrosion and stress, increases heat transfer, and improves appearance. The basic color option is white, but you can order the supply of the desired shade.
The products are developed according to European standards and are recommended for installation in multi-storey buildings.
Radena bimetallic radiators require additional equipment upon purchase. To operate them, you will need a passage plug, a plug and a plug with a valve to release air.
Bimetal equipment
Area of use: systems where water is used as a working fluid. This may be equipment for residential or administrative buildings. The same goes for industrial enterprises or public buildings.
The Radena bimetallic radiator consists of sections connected using steel nipples and paronite (non-asbestos) gaskets.
The versatility of the products lies in the possibility of operating the products either in autonomous systems (low-rise construction) or in “high-rise buildings” where there is centralized heating. The increased thermal output possessed by Raden bimetallic heating radiators goes well with other devices for working in low-temperature conditions.
Production and price
Each radiator includes a number of sections that are connected to one another by steel nipples. Additionally, paronite gaskets that do not contain asbestos are used. Two pipes are inserted inside the equipment - vertical and horizontal. They are needed for the normal passage of coolant.
The steel radiator frame is enclosed in a special shell made of an aluminum-based alloy. Production method: injection molding. The thermal fluid does not come into contact with the aluminum body, which extends durability.
Main parts of the radiator.
Since the frame is made of steel and certain rules are followed during its manufacturing process, it is highly durable and resistant to corrosion. The aluminum component solves two problems. Firstly, it increases thermal output. Secondly, it reduces inertia.
The painting method is no different from aluminum products without the use of bimetal. The cost depends on the model. As in the previous case, the products are divided into several types - Bimetall 350 and 500. The price of the first is approximately $13.3 per section, the second - $14.
Main technical properties
Here we will again take one model as a basis, that is, bimetallic heating radiators Radena Bimetall 350, and in case of any discrepancies, we will focus on the differences. The operating pressure is 25 atm, the test pressure is 40, the tensile pressure is 90. Thermal output for Bimetall 135–350 W, Bimetall 185–500 W.
Radena Bimetall 350.
The maximum temperature that the coolant is allowed to reach is 110 degrees. Per liter of working medium, 0.02 mg of oxygen is allowed. As for pH, the value level ranges from 6–10.5. One section of Bimetall 350 holds 0.16 liters, and of Bimetall 500 – 0.22 liters.
Section weight is 1.52 kg and 1.95 kg for each model, respectively. Height – 403 mm or 552 mm. The center distance is indicated directly in the model name - 350 mm and 500 mm. The depth of the radiator section is 85 mm, width is 80 mm. The diameter for the inlet type hole is standard - 1 inch. The color is made white, which suits almost any interior.
The right choice of radiators
The number of sections required to heat the room area
When choosing heating system devices, several significant factors are taken into account:
- Maximum operating pressure - the value is indicated in the product data sheet.
- Type of heating system - autonomous or centralized. It should be taken into account that the centralized system is subject to pressure surges.
- Heat transfer of one section - this characteristic allows you to calculate the number of sections required to heat the room.
- Coolant acidity indicator - the composition of the coolant affects the life of the batteries. Hard water with a high salt content accelerates corrosion processes.
- Appearance of radiators - devices should fit organically into the interior of the room.
When choosing a product, you should pay attention to the markings on the packaging. There are many fakes of the Italian brand on the market. The original products have a barcode of the country of origin, a label indicating that they have passed the quality control department, and information about the type of radiator.
Rifar radiators reviews
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Sectional bimetallic radiator Rifar Monolit 500 reviews
Denis P. ★ Advantages:
Only appearance
Disadvantages:
They lasted an average of just over 5 years.
We are extremely disappointed with these radiators. We installed batteries in 4 rooms in the fall of 2012: One 12-section radiator only warmed up to half. In two rooms, 12-section radiators began to leak after 4 years. After a week, the water stopped flowing. In one room, a fountain started leaking in a 10-section radiator in January 2021. That is. as of January 2021 The only thing left “alive” was the 4-section battery in the kitchen. Comment:
To return radiators under warranty to the manufacturer, you will need to collect, among others, the following papers: - copies of the act of putting the radiator into operation indicating the test pressure value, - copies of the permit from the operating organization responsible for the system in which it was installed device to change a given heating system.
Konstantin P. ★★ Advantages:
Pleasant appearance. Connection directly to 3/4″ without adapters. After installation, the brackets are not visible.
Disadvantages:
Sharp aluminum flash remains in places. High percentage of defects.
Comment:
Of the two radiators, one turned out to have defective threads in all holes - nothing can be screwed in. When trying to replace the radiator in a store, it turned out that all the 12-section radiators that are available have the same flaw. I had to return it.
Buy at a good price
Sectional bimetallic radiator Rifar Base 350 reviews
[email protected] ★★★★★ Pros:
Heat dissipation, declared characteristics correspond, appearance.
Disadvantages:
Probably only the price, but you have to pay for quality.
Comment:
We bought it on the recommendation of a plumber, installed it instead of the standard ones installed by the developer, the difference was immediately noticeable, it holds pressure, better heat transfer and a stylish appearance. The price is justified by the quality, we are happy with the purchase.
Buy at a good price
Sectional bimetallic radiator Rifar Base 500 reviews
Evgeniy L. ★★★★★ Advantages:
Good heat dissipation
Comment:
Fast and free shipping. Brought in original packaging. It warms up great.
Andrey S. ★★★ Advantages:
Not a bad price
Disadvantages:
Arrived damaged, packed in 2 factory films, the top one is intact, but the bottom one is scratched, and this scratch is also on the front side, it is also clear that the radiator fell at the factory...
Buy at a good price
Sectional bimetallic radiator Rifar Forza 350 reviews
Leonid Filippov ★★★★★ Advantages:
1. High quality coating.
Very smooth, uniform, nice white color. The back and ends are well painted.2. Full bimetal. The steel tube inside is clearly visible.3. High quality casting, including internal elements. No burrs or the like.4. Good heat dissipation, correct shape.5. Easy to hang. Disadvantages:
Didn't notice any problems.
Comment:
Good radiator, I recommend it.
Buy at a good price
Sectional bimetallic radiator Rifar Base Ventil 500 reviews
Anton A. ★★★★★ Advantages:
Prettier than the original batteries from the developer. The apartment became a couple of degrees warmer.
Buy at a good price
Sectional bimetallic radiator Rifar Forza 500 reviews
Ilya Kh. ★★★★★ Advantages:
Workmanship and appearance. The radiator is perfectly painted, even the fins inside are evenly painted.
The internal ribs are quite large and have a neat shape, not clumsy casting. Disadvantages:
during the first day the paint smells.
Comment:
they wrote here that they are partially bimetallic, but in my radiators you can clearly see the internal tube that goes along the section, from top to bottom. I am pleased with the quality and it’s nice to see the inscription made in Russia on such a product. written on the side wall of the radiator
Airat Ya. ★★ Advantages:
There are no mass complaints about this model.
Disadvantages:
The manufacturer presents this model as something that it essentially is not. This model is semi-bimetallic, that is, the vertical tubes are steel, and the horizontal ones are aluminum.
As a result, aluminum comes into direct contact with the liquid. The presence of antifreeze in the coolant will lead to corrosion and holes. Comment:
I bought this model under the guise of a bimetallic one, installed it, and only then realized my mistake. Over the course of a year of use in a multi-story building, no comments were identified.
Buy at a good price
Sectional bimetallic radiator Rifar Alp 500 reviews
Camu A. ★★★★★ Advantages:
Thickness, type
Disadvantages:
Painting on the ends of the plates chips easily
Vadim Z. ★★★★★ Advantages:
The quality of the radiators is excellent, they heat perfectly.
Comment:
I bought a lot of these radiators, I don’t regret it at all, I recommend it.
Buy at a good price
Radena radiator range
The company's catalog has a small selection of models, but the products presented are the most popular options for heating batteries. Their installation height is 350 and 500 mm.
Bimetallic models
CS 150
Raden bimetal radiator CS 150 has the smallest height in the line - 250 mm. The model fits easily under low window sills, saving space. One section produces 78 W of heat.
CS 350
Welded internal carbon steel frame ensures structural strength. The model is recommended for installation in high-rise buildings and administrative buildings. The weight of the section is up to 1.5 kg, height 403 mm. Heat dissipation characteristic 125 W.
CS 500
The frame of the structure is made of durable pipes with walls 2-4 mm thick. The radiators are designed for a pH value of up to 8. The battery provides a heat output of 135 W, its height is 552 mm. When choosing the number of elements, they are guided by the rule - the length of the battery is equal to 75% of the light opening.
Aluminum models
R 350
The packaging must have the original Italian barcode.
For one section with a height of 431 mm, 0.275 liters of coolant will be required. During operation, the heat transfer will be 165 W. Connection to the system is made through an inlet with a diameter of 1 inch. Radiators are mounted on special brackets. The packaging is not removed until the end of the work.
R 500
The heat output of the section is 192 W, its height is 581 mm, and the center distance is 500 mm. At a working pressure of 16 atm. the batteries can easily withstand the average pressure of a centralized system of 9 atm. When installing the battery, it is necessary to comply with the standards that ensure the designated heat transfer. The distance from the wall should be 25 mm, from the floor - 80 mm.
Radena's products are superior to competitors in several ways. These are the only radiators that are painted section by section, with the coating applied inside the structure.
Aluminum heating equipment
Although many experts suggest that buyers purchase Raden bimetallic heating radiators, this is not a mandatory rule. Aluminum as a manufacturing material is quite good in terms of thermal output and a number of other important characteristics. If the work environment allows, the application is justified. Some rules still need to be taken into account.
Aluminum radiators from Radena are used in systems based on water heating. Buildings – administrative, residential, public. Low-rise buildings are suitable.
Let's give a little advice. Before you buy a radiator, be sure to find out whether it is suitable for the main pipelines of the facility where installation is required. Failure to follow the rules of use after installation is unlikely to lead to terrible accidents, as they like to scare unlucky buyers. But the heating equipment will fail. And with a high probability, definitively.
Manufacturing process and cost
It's time to talk about more serious things. Let's start with a little information, which is that Raden aluminum heating radiators are made from a number of sections. The latter are cast under high pressure. Then they are combined into a single whole. For this purpose, steel nipples and special types of gaskets are used.
Aluminum radiator Radena 500.
Products are painted using epoxy polyester. A couple of layers are applied. If you are well versed in various technical subtleties, we will add that when creating a protective coating, two methods are used. The first is cataphoresis. The second is electrostatic spraying. We are talking about enamel in powder form. At the very end, the product is coated with a paint composition that belongs to class A.
You need to know the following - both the manufacturing and painting of Radena aluminum radiators are done at an acceptable level. In total, there are two types of aluminum products to choose from – R350 and R500. Price R350 – from approximately $11.3 per section, R500–$11.8.
Specifications
The basic properties of R350 and R500 are not very different. We will consider the first option. If the R500 is different in some way, we will explain it separately. Normal operation of radiators is guaranteed at a coolant operating pressure of 16 atm. As for the test one, it is 24 atm. The burst pressure is 50 atm.
The thermal output of one section is very high - 165 W. The R500 model has slightly more - 192 W. In order for heating equipment to last a long time, the coolant temperature should not exceed 110 degrees. Plus, more than 0.02 mg of oxygen per liter of working fluid is prohibited. It is worth paying attention to the pH. Acceptable value is from 6.5 to 9.
One section of the product holds 0.275 l (R500–0.330 l). The weight also varies to some extent. R350 – 1.05 kg, R500 – 1.35 kg. The section height is 431 mm and 581 mm, respectively, for different models. The center distance is 350 mm and 500 mm (hence the indices in the name). The remaining indicators are again the same. For example, the depth of the radiator section is 85 mm. Width – 80 mm. The inlet holes for connection have a diameter of 1 inch. White color.
We believe that the information provided is more than enough to superficially evaluate aluminum products. Let's move on to a more interesting option. We are talking about Radena bimetallic heating radiators, which are even more versatile.
