All people are striving for the best, including having a more comfortable and warm apartment, a more reliable and efficient heating system, while not overpaying utilities for their services, but, on the contrary, saving their money. This is becoming a very important issue today, in view of the fact that the system of housing accounting for heat energy is being actively introduced. With this accounting system, the better the radiator functions, the more savings and less the heating bill. For this, many today decided to purchase and install more modern radiators.
Bimetal radiators
Bimetal radiators are radiators, divided into sections, with a steel skeleton covered with a layer of aluminum alloy. The heat carrier flows along the steel casing, which perfectly withstands even its aggressive composition. Steel reinforces the whole structure, for this reason, such radiators can withstand even a very high operating pressure of the order of 40-50 atmospheres, which is common for heating systems in apartment buildings.
The aluminum case has a high thermal conductivity, which increases the heat transfer of the bimetallic radiator and reduces the inertia, that is, the radiator heats up faster and gives off heat as quickly. Due to the high thermal conductivity of aluminum, bimetal radiators have a higher heat dissipation than the best steel radiators, an average of two times.
Bimetal radiators are compact and light. In appearance, they are no worse than aluminum ones, and by the time of operation, which is several dozen years, is even better.
Aluminum radiators
Aluminum radiators are partition heating radiators made of aluminum alloy. They are ideally suited for installation in an apartment. Heating radiators aluminum are one of the most effective heating devices in the system of water heating. They have a high percentage of thermal conductivity, due to the fact that they are made of aluminum, which is considered an excellent conductor of heat. Also their design is thought out so as to increase heat output as much as possible - on the surface of the radiator there are special protrusions and ribbing.
In all models presented in the modern market of heating appliances for central heating systems, the working pressure is above 12 atmospheres, and the test pressure is higher than 18 atmospheres.
In order to choose the optimal length of such a radiator for heating an apartment or a separate room, it is necessary to summarize the number of its sections and, thus, to calculate the required required power.
Aluminum sectional radiators are presented in two forms - cast and extrusion.
As the name implies, cast radiators are those in which each separate section is cast as a solid part, and then the bottom parts are welded to it.
Extrusion radiators are aluminum radiators, in which each of the sections consists of three elements mechanically connected to each other.
Advantages of aluminum radiators:
- a light weight,
- compact size,
- high level of working pressure,
- maximum heat transfer,
- a large cross-sectional area of the collector tubes.
Due to the fins made around their main channels of energy transfer, air convection is enhanced, it also helps to avoid the accumulation of dust. In general, aluminum radiators are produced in a strict geometric form in a fashionable modern design, which makes them desirable in a city apartment. Aluminum radiators are installed by simple installation directly on the walls.
In sectional aluminum radiators there is a reduced amount of water, so they are convenient for regulation with the help of specially installed on them thermo-locking valves and thermostatic heads. Due to the fact that the aluminum radiators have low inertia, the thermo valve reacts to any temperature changes in the energy carrier every few minutes with special sensitivity and limits or opens the water access to the radiator. This significantly, up to 30%, saves fuel and heating the room is much more effective.
Sectional aluminum radiators for heating are reliable and affordable, which gives them an advantage among competitors in the use of water heating systems for apartments, both with the use of low-temperature heat generators, the type of condensing boilers, as well as heat pumps powered by photovoltaic panels, as well as for geothermal systems.
Radiators of heating
Asking which heating radiator to choose, you need to take into account some of the nuances of their design. So, there are steel tubular, cast-iron radiators of heating, radiators steel panel, bimetallic radiators and aluminum radiators of heating. For individual heating of private houses and cottages, as a rule, use steel panel radiators for heating.
Heating radiators aluminum - very reliable and inexpensive sectional heating appliances for city apartments. Their disadvantage is that they have high requirements for the chemical composition of the coolant (heating technical water supplied to batteries from a local CHP plant). They are noticeable thanks to the excellent design performance, but not all are ready to install on each battery a special automatic vent valve, which is necessary, since during their operation hydrogen is actively released.
Bimetal radiators are considered to be better and more reliable than others, because they withstand more pressure and have greater heat transfer, compared to the rest. Moreover, bimetallic radiators within their category also differ from each other as the level of heat transfer, as well as their size and design. Among all the variety of heating appliances, they are considered more reliable and withstand high pressure.
Thus, we conclude that it is the bimetallic sectional radiators that are the most popular heating devices for a city apartment in conditions of rigid operation with a central heating system.
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