Advantages and disadvantages of cast iron radiators
Today, manufacturers offer a large range of radiators of different metals and alloys, bimetallic, aluminum, steel and cast iron.But, if you remember, in the old houses are always installed cast-iron radiators, and this was done without reason, because the quality of the process water used in central heating systems, was and remains extremely low.Suspensions and aggressive chemical impurities contained therein, for any harmful metal, but cast iron radiators can withstand such severe operating conditions and operate properly without replacing 30-40 years.Deposition of layers of scale and prevent such a design feature as a la
rge amount of internal cross sections of water channels.
explained such high reliability of cast iron, mainly used for the production of radiators, so that it corrodes very slowly, even when compared with steel and aluminum.The walls of the cast iron radiators with a minimum thickness of 2.5 mm are capable of withstanding the operating pressure of 8-9 atmospheres, characteristic of Russian heating systems, as well as differential pressures up to 15 atmospheres.They have a high emissivity, allowing quickly heats the room, after the battery is warmed.However, high inertia is an added advantage when using the heating boilers for solid fuels. batteries are made of cast iron, have very thick walls, can be installed in open heating systems are used mainly in the construction of a villa.
The advantages of heating panels is made of cast iron and maintainability - separate sections, defective, it can be easily replaced.Their amount in the radiator can also be changed depending on the operating conditions, moreover, they can be installed in the wall or in the bottom embodiment.
big weight cast iron radiators is their shortcomings, because one section of domestic radiator can weigh from 3.3 to 7 kg, and those that are used in industry, this figure could be higher.This naturally complicates the installation and maintenance.Wash cast iron radiators and remove dust from the surface is also quite problematic - the gaps between the sections are small.In some cases, their high inertia becomes a disadvantage because you must wait for the wall to take the radiator coolant temperature.Models used for the production of which has Soviet equipment, had a rather primitive design but modern designs, especially made in the retro style can be interior decoration.
How to choose a cast-iron radiator
defined the choice of material for radiators, you should familiarize yourself with those requirements that apply to the conditions of their operation.Find out which operating pressure of the heating system, which will be installed battery, the temperature of coolant used therein, its qualitative characteristics.In the case where the radiators are mounted in the heating system of a country house, water is carried out from a well or borehole, and water, even technical passes through the purification filter system, the requirements for the design features of the radiator can be reduced.Given the fact that the temperature of the coolant in a private home rarely exceeds 90-95 ° C, and working pressure - 3-4 atmosphere radiators can be installed with a simple form of reduced wall thickness and less weight.Section volume can be limited to 1 liter, weight - 4-5 kg.For district heating in the apartment where the temperature can reach 120 ° C, select the radiator section having a capacity of more than 1 liter, weight - 5-7 kg In addition, pay attention to the dimensions of the sections - their height, width and depth may be different.
On the market today you can find radiators made in Russia or China.The quality they are almost indistinguishable.As for the design, then mostly traditional forms, but there are some models that are made in the technique of the art of casting and decorated embossed pattern on the surface of the metal.The baroque, classical, Oriental or Japanese, they can serve as an element of decor room, if properly to beat them in the interior.In the case where the radiator has a traditional shape, you can always hide behind drapes or window mask with special decorative grilles, however, it will reduce heat transfer. Cast iron radiators are marketed unpainted, so you yourself can choose the color that will come to an interior space.
Pay attention to an interesting embodiment, as a floor.In this case, the radiators are provided with pedestal legs, installed directly on the floor.You can buy a section of varying heights and depths.