Processes occurring inside bimetallic radiators
When discussing the merits and demerits of different heating systems, it is often forgotten to take into account the internal chemical processes that occur in the pipes under the influence of hot water. Any metal with time is susceptible to destructive effects of corrosion, cracks and breakthroughs appear. Particularly affected are the areas of the battery, on which there are connecting elements. Another important factor of the harmful effects of chemistry is the entry of dangerous substances into the middle of the system that appear during the oxidation of the metal.
This applies to any radiators, including bimetallic ones. Specialists do not recommend mixing several metals together, since each of them undergoes corrosion, and harmful substances are formed in two and, more times, more.
Which radiator is better - aluminum or bimetallic?
Aluminum products are much faster destroyed by hot water, but the thermal conductivity of this metal is much higher than that of iron or cast iron. In the US, copper is used as a material for the arrangement of heating systems, but in our country it has not found such wide distribution for these purposes. The way out of the situation suggests itself - a bimetal radiator, which will combine the strength and reliability of iron with high heat output of aluminum.
Construction of bimetallic batteries
Bimetal radiator for heating is an iron pipe, on which aluminum radiators are put on top. Warm water is supplied through steel pipes that are capable of withstanding heavy loads when the pressure of the liquid increases, and aluminum structures are installed on top of these pipes, which have a higher heat transfer. Thus, the positive qualities of both materials are used and their negative properties are avoided.
Industry produces bimetallic radiators of two kinds:
- pseudo-metal - have an aluminum frame, with inside steel tubes not connected to the casing;
- is completely bimetallic - the inner iron frame is poured on top with an aluminum base. Such radiators are more durable and reliable, however, and their price is higher.
Which bimetal radiators are better than
If you choose a country producing a bimetallic heating device, then you need to start this rating from Italy. According to experts, this country is the best manufacturer of high-quality bimetal radiators.
The next number of our rating will be the products of such a state as Germany, followed by heating appliances of Russian production, and this list is finalized, of course, by China. Do not think that cheap, always not quality. Modern production technologies allow to reduce the cost of products, without deteriorating the technical characteristics.
Advantages of bimetallic radiators
- Higher reliability, in comparison with aluminum structures, because the double metal withstands higher loads;
- Possibility to choose the design of the heater for a certain taste;
- Significant heat dissipation, compared to a cast iron or iron battery.
