Steel panel radiators: types, features, power calculation and Russian manufacturers

Conrad

The Russian manufacturer produces all types of panel radiators with side and bottom connections.

The set of each device includes additional parts: brackets, Mayevsky crane, plugs, branch pipes.

Konrad produces batteries that are suitable for use in closed heating systems.

Dimensions and power

Steel panel radiators have a very attractive design, and the presence of numerous modifications in size allows you to choose the necessary model for any interior and existing niche. The sleek flat body can be 20 to 90 mm in height and 40 cm to 3 meters in length.

Variations of standard sizes of panel radiators

The heat output of this appliance depends on its size and the number of panels. Considering the excellent thermal conductivity of steel and a huge selection of case sizes, it is safe to say that such a radiator can heat almost any room.

Kermi

Manufacturer from Germany, existing and actively conducting its production activities for over 50 years. In terms of their structure, Kermi panel-type radiators are very similar to conventional ones.

Steel Radiator Kermi

The panels are constructed from two plates with a recess between them. It is there that the process of circulation of the coolant is carried out. All manufactured radiators are characterized by the highest quality that meets European standards.

The latest equipment is used in the production process. The batteries are distinguished by good heat dissipation, ahead of their competitors in this indicator by 20-30%.

The company has developed its own Therm X2 technology.

The produced batteries are more suitable for closed heating systems.

The manufacturer Kermi offers a wide range of radiators with both side and bottom connections. And the variety of designs allows everyone to choose the most suitable option for their home.

Buderus batteries

German steel radiators are recognized as one of the best in the field of heating systems and this is not surprising when it comes to the Buderos company.

Founded in 1731 as a plant for the production and processing of cast iron, by the end of the 19th century it switched to the production of cast iron radiators.

Today Buderus radiators (steel panel) are known all over the world. In Russia, they are manufactured on the site built in Engels (Saratov region) and fully comply with German quality standards.

Panel radiators Buderus have the following characteristics:

The length of the products varies from 400 mm to 3000 mm, and the height - from 300 mm to 900 mm.
Four lateral connections allow them to be used in any heating system.
The special mounting device BMSplus provides fast and reliable fastening of this type of batteries to the wall with the possibility of centering them.

To get a complete picture of the quality of Buderus steel radiators, they should be installed and tested. As a rule, the reviews about German quality are the most enthusiastic. This also applies to models produced in Russia.

Korado

A Czech company that has achieved good results in the production of steel radiators. Users leave a lot of positive reviews about Korado products and note their high quality and durability.

The batteries can be installed both in one-pipe and two-pipe heating circuits with closed and open circulation of the heat carrier.

Radiator Korado Radik Klasik

All manufactured radiators are presented in 4 series: Radik Hygiene, Radik Klasik, Radik Plan, Radik Ventel Kompakt.

Corrosion and service life

As you know, aluminum radiators are very sensitive to the composition of the coolant. How much better (or worse) are their steel cousins doing?

Things are a little better, but far from perfect. Steel batteries do not react with copper elements of the heating system, but they can still corrode if they are left without a coolant in the summer.

This is another reason why they cannot be used in multi-storey buildings, where the coolant is drained during the prevention period.

Small stones, pieces of scale and other abrasive impurities, which are always present in the utility network, also contribute to corrosion. Whatever dyes or protective compounds manufacturers use, practice shows that they serve one or two seasons.

Purmo

A well-known Finnish company that uses cold-rolled 1.25 mm steel for the manufacture of almost all panel radiators.

Batteries are painted by cataphoresis, therefore they are resistant to corrosive processes.

You can find out what paint to use for painting batteries in this article.

The lineup is presented in the following line:

Purmo Compact C - side connection;
Purmo Ventil Compact VKO - models with both bottom and side connections and are equipped with a thermostat;
Purmo Hygiene P - lateral connection, no convection elements;
Purmo Ventil Hygiene PV - without convection elements, but the kit includes a thermostat, two connection options: bottom and side;
Purmo Planora Plan DF has side and bottom connections and is characterized by a smooth radiator screen.

Steel radiators PURMO Compact

LLC "KotelGaz"

the main

Boiler equipment

Heating radiators

Radiators RSV-5-KONRAD

Heater, panel type. Designed for heating residential and public buildings. Radiators are made in a traumatic, straight-through design, from cold-rolled steel 1.4 mm thick, painted with high-strength white powder paint, which provides anti-corrosion resistance and hygienic safety. Steel radiators are packed in cardboard boxes. The delivery set includes two primed mounting brackets, 2 adapter couplings, a plug and an air valve (Mayevsky valve).

Working excess pressure of the coolant, no more than 1 MPa or 10 kgf / cm 2
Test pressure of the coolant 1.5 MPa or 15 (kgf / cm 2)
Maximum coolant temperature 120 ° С
Oxygen content in water, no more than 20 μg / dm 3
PH value of water 8.3-9.5
Installation height 500 mm
Panel length 406-1201 mm
Appliance depth 69-105
Overall height 580 mm
External thread 3/4

Single-panel radiator RSV-5-KONRAD
Model	Power, kWt	Depth mm	Length mm	Weight kg	Price with VAT
RSV-5-10-1-P	0,382	69	406	7,5	RUB 1,178
RSV-5-10-2-P	0,535	69	605	10,1	RUB 1,439
RSV-5-10-3-P	0,736	69	804	12,7	RUB 1,738
RSV-5-10-4-P	0,918	69	1002	15,1	RUB 2,124
RSV-5-10-5-P	1,100	69	1201	17,1	RUB 2,547
Radiator, single-panel through passage with single fins RSV-5-KONRAD
Model	Power, kWt	Depth mm	Length mm	Weight kg	Price with VAT
RSV-5-11-1-P	0,507	69	406	8,5	RUB 1,468
RSV-5-11-2-P	0,760	69	605	11,3	RUB 2,048
RSV-5-11-3-P	1,000	69	804	14,5	2 379 rub.
RSV-5-11-4-P	1,250	69	1002	17,5	RUB 2,914
RSV-5-11-5-P	1,500	69	1201	20,1	RUB 3 355
Two-panel radiator RSV-5-KONRAD
Model	Power, kWt	Depth mm	Length mm	Weight kg	Price with VAT
RSV-5-20-1-P	0,618	105	406	12,54	RUB 1,995
RSV-5-20-2-P	0,921	105	605	18,00	2 376 rub.
RSV-5-20-3-P	1,224	105	804	23,30	RUB 3,853
RSV-5-20-4-P	1,525	105	1002	28,20	RUB 3,505
RSV-5-20-5-P	1,828	105	1201	33,52	RUB 4,207
Radiator, two-panel straight-through with single fins RSV-5-KONRAD
Model	Power, kWt	Depth mm	Length mm	Weight kg	Price with VAT
RSV-5-21-1-P	0,742	105	406	13,24	RUB 2 324
RSV-5-21-2-P	1,105	105	605	19,27	RUB 2 882
RSV-5-21-3-P	1,469	105	804	25,15	RUB 3,665
RSV-5-21-4-P	1,831	105	1002	30,62	RUB 4,217
RSV-5-21-5-P	2,194	105	1201	36,52	RUB 5,088
Two-panel double-finned radiator RSV-5-KONRAD
Model	Power, kWt	Depth mm	Length mm	Weight kg	Price with VAT
RSV-5-22-1-P	0,869	105	406	13,94	RUB 2,445
RSV-5-22-2-P	1,295	105	605	20,54	RUB 3,864
RSV-5-22-3-P	1,721	105	804	27,00	RUB 4,083
RSV-5-22-4-P	2,145	105	1002	33,04	RUB 4,968
RSV-5-22-5-P	2,571	105	1201	39,52	RUB 5,890

Prado

Russian manufacturer that produces batteries with side and bottom connections.

The products are characterized not only by high quality, but also by a pleasant price.

Radiators are distinguished by high rates of heat transfer, they are quite durable and, with proper care, can last for many years.

Prado products are presented in two lines: Classic and Universal.

Radiator Prado Classic

The entire model range of the Universal series is equipped with thermostats and devices can be connected both from the side and from the bottom.

Radiators of the Classic series are not equipped with a thermostat and have a side connection only.

Radiators Konrad - technical characteristics of the model range

Practical tests were able to clearly demonstrate that Konrad radiators are one of the best devices on the domestic heating equipment market. These devices were designed taking into account all the features and requirements of operation in the Russian climate. These radiators are equally good for heating cottages and for use in public buildings of a huge area and volume.

Characteristics and features

Features of Konrad radiators are that they do not have such a high hydraulic resistance as imported counterparts, due to which they are successfully used in systems in which the water pressure is not stable. The presence of a temperature control device in the radiator makes it possible to increase the reliability of the equipment, since it becomes more resistant to temperature extremes, which is also extremely important, taking into account the peculiarities of domestic operating conditions. Radiators Konrad, which represent the most advanced line of the manufacturer, are in the highest consumer demand. Their main advantages, which favorably distinguish these radiators from the products of competing companies, are in an incredibly durable case, the basis of which is cold-rolled steel sheets with a thickness of almost one and a half millimeters.

Top Models Conrad

If we consider the most advanced Konrad models - devices of the RSV-4 and RSV-5 series, they look like compact and efficient heating devices that can easily decorate the interior of any room. As a finishing, powder paint of the highest quality is used, due to which the radiators are immune to rust, and also acquire an appearance corresponding to the equipment of the highest price category.

It is noteworthy that the connection to the radiators can be made both from the side and from the bottom, which makes the operational capabilities of the radiators significantly wider. If the installation is carried out by a qualified technician, then the equipment can easily be hidden along walls or under windows. Major pipe networks can also be perfectly camouflaged. Due to the fact that the manufacturer has established the production of devices of completely different capacities, it is possible to purchase Konrad radiators that can most accurately meet the needs of a room that needs heating.

It turns out that by paying enough attention to the calculations and selection of equipment, you can create a heating system that will be as efficient as possible while consuming a minimum of energy.

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Comparison

Consider in the table the main technical characteristics of some of the described manufacturers of heating radiators.

Manufacturer	Working pressure, Atm.	Max. coolant t, ° С	Power, W	Water volume, l	Weight, kg	Connection method
Kermi (Germany)	10	110	965	2,7	17,07	Lateral - thread 4 x 1/2 "(internal) Bottom - thread 2 x 3/4" (external)
Lidea (Belarus)	8,6	110	1080	3,3	15,1	Lateral - 4 connecting pipes with ½ internal thread Bottom - 2 connecting pipes with 1/2 ″ internal thread
Korado Radik (Czech Republic)	10	110	914	2	15,6	Side - thread 4 x 1/2 "(internal) Bottom - thread 2 x 3/4" (external)
Purmo (Finland)	8,7	110	929	2,6	13,6	Side - female thread 1/2 "Bottom - female thread 2 x 1/2"

Not so many companies are engaged in the production of tubular radiators as panel radiators. They are expensive and mostly such products can be found from German manufacturers Zehnder Charleston, Arbonia, Kermi, Charleston.

An article about radiator manufacturers from Turkey, Finland and the Czech Republic is here

Heating radiators Konrad »main advantages

If you decide to change heating radiators in your home, but you still doubt which type, and even more so which brand to give preference to, then in this article we will try to consider one of the most suitable options. Among the huge number of heating batteries, it deserves a separate consideration. heating radiators Konrad, which currently occupy a leading position in the market among domestic manufacturers.

By the type of material produced, Konrad radiators are panel steel. A large assortment of different models is presented to the buyer's choice. As already mentioned, these radiators are the brainchild of a Russian manufacturer of heating systems.

Compared to foreign models, Konrad has a number of advantages. For example, the thickness of the steel walls of our batteries is 1.4 mm, which is 0.15 mm thicker than most foreign competitors. Naturally, this difference provides an increased service life, which, with proper installation and proper operation, is 25-30 years. The considered radiators have the ability to supply pipes both traditionally from the sides and from below.

An important difference between Russian models and foreign ones is the increased size of the connecting fittings. Our batteries have a 3/4 inch, while foreign ones have this figure of only half an inch. As a result, in Russian models, the hydraulic resistance in the pipes is much lower, which increases the flow permeability of the coolant and provides a higher degree of heat transfer.

New models of panel radiators Konrad RSV-4, RSV-1 and Konrad RVS-5 equipped with built-in thermostats, which ensures more comfortable operation. The standard steel two-panel radiator Konrad RSV-5 20-1P has dimensions of 50x40x10.5 cm, which makes it possible to efficiently heat an area up to 7 sq. meters. With such small dimensions, this is a fairly high efficiency. All radiators in the presented line are made of cold-rolled steel in a crash-proof and quite pleasant design. The design features and characteristics of steel allow it to withstand pressure up to 15 atmospheres and the maximum temperature of the coolant up to 120 ° C. And the low weight - up to 15 kg, and low prices, make Konrad radiators the best choice.