Heating issues are relevant in our country due to the fact that it is cold in most of its territory. For this reason, heating a living room periodically takes the thoughts of Russians. This means that we should consider this topic and tell more about bimetal heating radiators. Their technical specifications are excellent, so they are in demand among buyers. Consider them and compare with competitors.
general information
Bimetal heating radiators are very distinguished by their characteristics and therefore are currently among the leaders in their group of products. In terms of mass, they lose only to the old classic cast-iron radiators. It can be assumed that this is because the cast iron version was extremely common at the time. Still, such batteries are reluctant to change, although the deadline has already come. This is due to the peculiarities of people's thinking and their difficult financial situation, but we will not leave the topic and discuss it.
Radiator device
Bimetal batteries are made of two metals. The inner part is made of stainless steel, and the outer part (heat exchanger) of aluminum. Vertical steel channels are pipes. They are connected by welding in their lower and upper parts to horizontal pipes of a larger diameter, which, after assembly of the battery, form collectors. In this pipe construction, coolant circulates from the steel.
Battery sections can be equipped with a thread (coupling) for connection to each other, and can be planted for factory welding (rare). From here comes the division into two types:
- sectional collapsible radiator;
- one-piece one-piece option.
I must say that the integrality is quite relative, because you can always add several separate sections to a non-separable battery or simply connect together several blocks that are considered non-separable.
Features
The excellent characteristics of bimetallic radiators make people choose them. They are bought for private homes, and for city apartments. A feature of the bimetallic battery is that, when compared with aluminum and steel analogues, it has a noticeable pronounced resistance to high pressure and high temperatures.
But it is worth saying that the above applies only to quality products. This means that it is worth giving preference to manufacturing companies that have long existed in the market and have been able to prove themselves excellently during this time. It is necessary to take a responsible approach to the selection of bimetal heating radiators. Technical specification is an important aspect, but other aspects matter (manufacturer, etc.).
Steel channels are incredibly high resistance to various aggressive components of the coolant system. This is especially noticeable in comparison with all-aluminum counterparts. In bimetal, an acid-base indicator (pH) of 5-11 units is allowed, and this is several times higher than the same indicator for aluminum batteries. It also makes bimetal heating radiators more popular with buyers. The characteristics of such products can be considered close to ideal. This should always be considered when choosing batteries for the home.
Bimetal heating radiators: specifications
I must say that bimetal has the best performance if we compare it with aluminum radiators and steel batteries. This is because aluminum is the best in terms of heat transfer, and steel - in terms of heating. Thus, the bimetallic option is the pluses of both metals and the exclusion of the minuses of each of them separately. Now you can talk about specific manufacturers in order to learn a little about the situation on the market and the main players in it.
Characteristics of bimetal radiators "Rifar"
Rifar is our Russian manufacturer from the Orenburg region (the city of Guy). The production is modern, the line is fully automated. The batteries are an internal monolithic collector made of stainless steel, which is placed in an aluminum case.
High product quality is confirmed by compliance with European quality, as well as with the Russian main regulatory documents (GOST 31311-2005, TU 4935-004-41807387-10).
You can often find bimetallic heating radiators “Rifar Monolit 500” in multi-storey residential buildings and office premises. The characteristics of these batteries are such that they are optimally suited for these purposes (high strength and full compliance with all parameters for use in domestic heating systems).
I must say that Rifar Monolit has two dimensions. The difference is the distance between the axles. About the 500 mm variant just mentioned above, now is the time to say about 350 mm. You can often find bimetallic radiators "Rifar Monolit 350" in country and private houses. The characteristics and dimensions of the radiator are such that it can be used where a battery with a height of 500 mm does not fit. This is an important feature that needs to be said about when talking about heating radiators.
Rifar Monolit 500:
- Working pressure - 98 atm.
- The heat transfer of one section is 196 watts.
- The maximum temperature of the heat carrier is 135 0 .
- The hydrogen index is 7-8 pH.
- Section volume - 0.21 liters.
- Section weight - 2 kg.
- The diameter of the inlet is 1 inch.
- The color of the radiator is white.
- Warranty - 50 years.
Rifar Monolit 350:
- Working pressure - 98 atm.
- The heat dissipation of one section is 134 watts.
- The maximum temperature of the heat carrier is 135 0 .
- The hydrogen index is 7-8 pH.
- The volume of the section is 0.18 liters.
- Section weight - 1.5 kg.
- The diameter of the inlet is 1 inch.
- The color of the radiator is white.
- Warranty - 50 years.
STI
Sanitaria Technica Italiana has been on the market for about 30 years. Brand products meet absolutely all international quality standards and customer requirements. It should be noted that the price of brand products is very affordable.
In Russia, Italian STI radiators appeared only in 2013. But, despite this, they quickly conquered a significant part of the market in this niche. The company has not only its own modern equipment for production, but also its own technological department, in which all products undergo a three-stage strict quality control.
Let us consider in more detail the "STI" bimetal heating radiator. Reviews, specifications - this is the most important moment in this case, it is then that we will touch upon. Consider the parameters on the STI Grand model:
- The working pressure of the coolant is 2.4 MPa.
- The maximum temperature of the heat carrier is 110 0 .
- The heat dissipation of one section is 195 watts.
- The capacity of 1 section is 0.2 liters.
- The weight of one section is 1.8 kg.
Pay attention to the main parameter of bimetal heating radiators - heat transfer characteristic. It is worth emphasizing that the Italian version of the heat transfer of one section is 195 watts, and in our domestic version of the above option, the similar parameter is 196 watts. Does this mean that these are the same indicators? To find the answer to this question, you need to refer to the reviews.
Reviews say that STI radiators are better at warming rooms. The difference is not so noticeable in small areas, but if we are talking about large houses, then this trifle already becomes something significant.
WARMA
WARMA is a large Russian-Chinese company. The production is located in China, but only high-quality European equipment is used in automated lines, and quality control is carried out by Russian specialists.
Products comply with GOST 31311-2005 and other standards in the field of central heating system. WARMA bimetal batteries are suitable for installation in both private homes and apartments with centralized heating plants.
Consider the WB350 model to compare with the 350 mm bimetal heating radiator considered above. Specifications WB350:
- Working pressure - 25 atm.
- The heat transfer of one section is 130 watts.
- The maximum temperature of the heat carrier is 110 0 .
- The hydrogen index is 6-10.5 pH.
- The volume of the section is 0.17 liters.
- Section weight - 1.45 kg.
- The diameter of the inlet is 1 inch.
- The color of the radiator is white.
- Warranty - 10 years.
If you analyze the WB350 and Rifar Monolit 350, you can notice similar parameters of these bimetal heating radiators. Dimensions, specifications are almost the same, but there are also nuances that are worth paying attention to.
Rifar’s operating pressure is noticeably higher, which means that the quality control pressure was also higher. The weight of the section at "Rifar" is also more than that of the Russian-Chinese competitor. From all this we can conclude that WARMA products are at least somewhat inferior in terms of quality to similar products from the Russian manufacturer Rifar.
Tenrad
German company founded in 2005. The head office is located in the city of Dresden. Production is located in China. Here the plant is equipped with modern equipment and its own chemical-technological laboratory. We also note the availability of the most advanced metal casting systems Farm New Brass. All equipment of automated lines is made by German and Swiss companies. The production of radiators is strictly controlled by vigilant German experts.
Consider the battery parameters on the example of the TENRAD BM 500 model:
- Working pressure - 24 atm.
- The heat transfer of one section is 161 watts.
- The maximum temperature of the heat carrier is 120 0 .
- The hydrogen index is 5-11 pH.
- Section volume - 0.22 liters.
- Section weight - 1.45 kg.
- The diameter of the inlet is 1 inch.
- The color of the radiator is white.
- Warranty - 50 years.
People speak well of the company's products. The quality of the products is beyond doubt. If you are satisfied with the price of radiators from the Tenndar company, then you can safely take them, you will not be disappointed in the choice!
Radena
This is an Italian company with an office, a design office and testing laboratories in Italy itself, but the company's production is located in China, and Italian experts carry out production control. In Russia, the manufacturer has existed on the market since 2010. It should be noted that product reviews are flattering, Rada’s radiators are well suited to work in our networks. The price of products is not too low, but this does not scare buyers. Consider the parameters of one non-standard model (radiator height 150 mm):
- Working pressure - 25 atm.
- The heat transfer of one section is 120 watts.
- The maximum temperature of the heat carrier is 110 0 .
- The hydrogen index is 6-10.5 pH.
- The volume of the section is 0.13 liters.
- Section weight - 1.19 kg.
- The diameter of the inlet is 1 inch.
- The color of the radiator is white.
- Warranty - 15 years.
Fondital
The company was established in 1970 in the city of Weston (Italy). All these years, the company worked in the design and manufacture of heating systems. Today, a small enterprise has grown into a powerful enterprise with several large production facilities.
The Fondital Alustal bimetal model is optimized for installation in a central heating system for shared multi-story buildings. Reviews about the company are extremely positive. Consider the parameters of Fondital Alustal:
- Working pressure - 40 atm.
- The heat transfer of one section is 190 watts.
- The maximum temperature of the heat carrier is 110 0 .
- The hydrogen index is 7-10 pH.
- The volume of the section is 0.14 liters.
- Section weight - 1.23 kg.
- The diameter of the inlet is 1 inch.
- The color of the radiator is white.
- Warranty - 20 years.
The excellent heat dissipation with the small volume and weight of the section is noteworthy. This is not the most budget model, but it costs the money that the manufacturer asks for it.
Summary
We did not consider all the manufacturers that are present on the market, but only some that are especially in demand. But this is enough to understand a little for yourself the subtleties of choice and decide. Of course, many people prefer cheaper options, but in this situation you can’t try to save a lot, because in this case you can lose a lot in terms of quality.