When arranging an apartment or house, it is extremely important to choose the right radiators. Between themselves, they differ structurally, by the material of manufacture, weight, power, appearance and heat transfer. All batteries, however, operate on the same principle. It consists in the fact that a hot coolant enters the casing, which heats the radiator material, and then it gives off heat in the room by convection or heat radiation. In the first case, we are talking about accelerated heating.
Which radiators to choose
On sale you can find batteries that are convector-radiators, they combine both functions. The room will warm up faster if such devices are installed in it. This distinguishes them from simple radiators, which supply heat in the form of thermal energy in a volume of 60%, while 40% is given by convection.
Batteries, among other things, can be divided into 2 groups. The difference is in the design features. Devices can be sectional or panels. In the first case, we are talking about:
- bimetal;
- steel;
- cast iron;
- aluminum.
Panel batteries have a diverse design and are combined devices. They work by giving off thermal energy and heating the premises by convection. If you need a heating device, you should pay attention to the Kermi radiators, reviews of which you can read in the article.
Device
The design of the Kermi batteries is quite simple. The equipment consists of two steel plates, the thickness of which ranges from 1, 2 to 2 mm. There are also vertical channels where the heated coolant circulates. All elements are connected by welding. Some models have ribs on the back, which helps to increase heat transfer. This design of Kermi radiators, reviews of which are often quite positive, is called combined. The panels give off thermal energy to the room, and the space between them convection. The design has such features that contribute to rapid heating, but also to quick cooling.
Customer reviews. Principle of operation
Reading reviews about Kermi radiators, you can understand that these panel devices are among the best. These are the products of a German company, whose performance is considered the best in its class. As consumers emphasize, cold-rolled sheet steel products are manufactured. Its thickness is 1, 25 mm. Customers like that these devices are excellent for Russian conditions, where the climate is frosty and quite often there are sharp temperature drops.
From the reviews of Kermi radiators, you can understand that they are suitable for rooms of any size, although they are small in size. The height can vary from 30 to 50 cm, while the width is equal to the limit from 0, 7 to 1 m. Three depth options are the main feature. This indicator varies from 59 to 100 mm. The intermediate value is 64 mm. Even the deepest radiators from the wall do not recede much, so they remain almost invisible in the interior.
Buyers note that the surface of the batteries is varnished. Any device can be connected to autonomous or centralized heating, to a one-pipe or two-pipe system. By the type of connection, the devices can be divided into FTV and FKO. The former involve a lower connection, while their external thread is 3/4 inch. The second variant provides lateral connection, and the internal thread is 1/2 inch. Each species has three series:
- single row;
- double row;
- three-row.
Production Features
In the production of models, new technology is used that provides initial heating of the front panel. Here is the direct flow of water from the heating system. After there is a gradual heating of the rear panel, from the return current of the coolant. At the same time, the rear panel acts as a heat shield. The surface of the radiators is degreased and primed, then varnish is applied.
At the final stage, the product is subjected to heat treatment and enamel coating. This approach ensures the durability of the layers, which are almost impossible to ruin. In the production process, the company does not use formaldehydes, which makes the devices environmentally friendly, therefore, reviews about Kermi heating radiators are almost always only positive.
Connection Features
Kermi radiators are manufactured to the most popular sizes to facilitate installation or replacement. The manufacturer has taken care to facilitate the connection task by providing instructions. So, before starting work, a power calculation should be made. Performance is calculated according to the following formula: 100 W + 1 m². The radiator can be selected by determining the heated area.
Reading reviews of Kermi steel radiators, you can understand that the minimum installation height from the floor is 10 cm. It is important to prevent the product from adjoining the wall. The minimum gap is 5 cm. When installing, it is recommended to use branded accessories. Wall mounts are supplied. To be purchased separately:
- control valves;
- shutoff valves;
- bottom connection node.
After reading the reviews of people about Kermi radiators, you can note for yourself that when the batteries are connected in series in a single-tube system, work should be done through an adapter. In a two-pipe system, the installation of additional nodes is not required. A Mayevsky crane is installed on the radiators, which allows, after filling the pipeline with coolant, to bleed air from the system. The airing should start from the radiator closest to the boiler.
Reviews of radiators with bottom connection
Reading reviews of Kermi radiators with a lower connection, you can understand that they are panel and tubular. Such a name devices received due to the design features. The appliances have flat heating panels and pads when it comes to panel construction. This eliminates the accumulation of dirt. In tubular devices, the distance between the tubes is increased. This makes it easy to clean the battery. Customers like these models because they use sequential heating technology. Thanks to this, the user has the opportunity to save up to 11% on energy costs.
If you liked the Kermi steel heating radiators, you should definitely read the reviews about them. Having got acquainted with the opinions of consumers, you can find out that such devices, which are most often installed in private houses and cottages, have an attractive appearance, because the pipeline is located below, which allows you to hide the eyeliner. Tubular steel radiators are connected more easily, panel options are difficult to install, but they are easy to integrate into the laid trunk.
Reviews about the radiators "Radena"
If you are still not sure about the choice, you should consider others. Reviews about the radiators "Raden" and "Kermi" are generally positive. The first of these brands is located in Italy. The cost of one section is 2 times lower than that of Kermi radiators. The batteries are made of bimetal, and the maximum working pressure is 25 atmospheres. Battery heights range from 241 to 552 mm. Consumers like the heat dissipation of one section, which reaches 185 watts. The heat dissipation of the Kermi panel is slightly lower and starts at 179 watts. However, the maximum limit is quite high. The final value will depend on the specific model.
Finally
Impeccable reliability and quality have always been distinguished by German heating systems. Kermi products are no exception. Equipment from this manufacturer is adapted to the operating conditions in Russia. Technical conditions due to this have been significantly improved. “Kermi” have high resistance to hydraulic shocks, they have high thermal conductivity and are able to withstand the effects of aggressive media.