Most of the Russian city apartments are connected to a central water heating system. Due to lack of necessary means, the work of the whole heating infrastructure is not effective enough. Taking into account the fact that obsolete cast-iron radiators are used everywhere, which does not allow us to obtain a sufficiently comfortable temperature, at the moment, new types of heating batteries have been widely used that are designed for operation in water heating systems. And then the question arises as to which radiators are better - aluminum or bimetallic? It is necessary to understand this question.
In appearance, aluminum heating radiators are very utilitarian, they have a strict rectangular shape, and the entire outer surface is a large heat dissipator. The efficiency of heat transfer increases due to the presence of several more plates inside the radiators. If we talk about which radiators are better - aluminum or bimetallic, then it should be noted that almost all aluminum batteries consist of standard sections, in the amount of 6-12. The total capacity depends on the number of sections, which must be taken into account when designing a heating system for a particular apartment. Attractiveness of appearance is guaranteed through the use of high-quality powder enamel. These characteristics allow them to fit into the interior fairly harmoniously.
If you understand what kind of radiators are better - aluminum or bimetallic, then it should be said that the former have a high thermal conductivity, so they quickly warm up the room. However, when the heating is turned off, they cool down as quickly, since the heat capacity of aluminum is very low. The most serious drawback of such batteries is the high requirements to the quality composition of the coolant. At radiators of import manufacture it is shown most strongly. Domestic producers with a situation in our country are well acquainted, so they try to take into account all these features. In the central heating system, there are a lot of mechanical impurities in the coolant, which have a strong abrasive effect on aluminum. If we talk about choosing aluminum or bimetal radiators, we should mention the need to install local filtering systems. In this case, you can guarantee the safety of work.
If you understand the question of what makes the difference between bimetallic radiators from aluminum, then it should be said that the former were designed to preserve all the advantages of the second, while in order to obtain a corrosion-resistant and mechanically worn battery. Outwardly they are no different. The difference is in the use of two metals - high-strength steel and aluminum, which conducts heat perfectly. By heat transfer, bimetal radiators are almost as good as aluminum radiators, but they are able to withstand more pressure, and they are less demanding on the quality of the coolant. That is why they are increasingly used in apartments.
Answering the question about which radiators are better - aluminum or bimetallic, one can not say unequivocally that some are alone. If certain conditions are met, you can use both types equally effectively.