Bimetallic radiators: modern appliances with high

Bimetal, as the basis of heating radiators, appeared quite recently - at the beginning of our century. Nevertheless, he is increasingly confidently squeezing monolithic cast iron, steel and aluminum. The point here is the reliability and excellent technical characteristics of such batteries. Let's talk about them in more detail.

Distinctive features of combined batteries

1. Bimetallic radiators consist of steel or copper pipes and aluminum heat exchange panels.
2. The coolant, passing through the core, quickly heats the shell, and she - the room air.
3. Panels contribute to optimal heat distribution. In addition, they also have an aesthetic function, because look stylish and elegant.
4. Thanks to the use of aluminum, the radiator is lightweight.
5. The core tubes are very durable. They withstand a pressure of 16/35 atm. and temperature of the heat carrier in + 90 °.

Varieties of devices

Before you choose bimetallic heating batteries, you should consider that there are two types of them.

1. Actually, the combined radiators with steel tubular core surrounded by an aluminum shell. Such devices have increased strength, their leakage is excluded.
2. In semi-bimetallic analogs, only pipes are made of steel to strengthen vertical channels.. Aluminum elements of the device with the heat carrier are partially in contact. Such devices give off heat energy 10% better, and their price is 20% less.

Note! The instruction says that it is better to purchase the first type for an apartment, since its characteristics are adapted to urban water, in which a lot of "chemistry". Appliances of the second type are better to be installed in a country building with an autonomous heating system, because aluminum behaves better with increased net working pressure.

1. Most of these devices are recruited from the standard number of sections connected by nipples at the factory.. The number of elements is always even. If necessary, you can add or remove sections with your own hands.
2. In addition to sectional products, manufacturers offer one-piece and combined radiators.. The core immediately has the necessary dimensions. It is wrapped with a curly aluminum shell. Such a device is able to withstand up to 100 atm.

Instrument specifications

It is a little about the most important parameters of bimetallic heating batteries.

1. Heat transfer of devices is measured in watts at a water temperature of + 70 °. The average value of the heat given to the combined radiators is 170/190 W. What is a great indicator.
2. Heat transfer can occur through the warming of the air and convectively, which contributes to the special design of devices.
3. The pressure in the system that the device can withstand is 16/35 atm., Which depends on its manufacturer and model.

Note! In centralized heating systems, the operating pressure is no more than 14 atm. In autonomous networks - 10 atm. Manufacturers of radiators always indicate their ability to withstand the pressure of the environment with a margin.

1. The center distance is the gap between the centers of the upper and lower collectors of the battery. These standardized values ​​are: 200 mm, 300, 350, 500 and 800. When calculating sections of a bimetallic heating battery, note that such a choice makes it possible to install a device that fits optimally into the piping.
2. The maximum temperature of water that bimetal can withstand is 90 °. Only this figure is true, if the manufacturer indicated a higher one - it is incorrect. It should be noted that the level of heat transfer by the device depends on this indicator.
3. The lifetime of the combined radiators is about 20 years. This is an average figure - and not high and not small. In this case, the instruments in its course do not need to be serviced. Unless, of course, there will be force majeure.
4. Installing a heating battery - bimetallic analogues are easy to install. The sections are the same. This makes it possible to put them on the right and left of the pipes.

In the place where the pipe is located, a branch pipe is screwed to the battery. On the other hand, a plug is placed, from the side area of ​​which the Mayevsky crane is located, and a plug is also mounted below.

Disadvantages of radiators

1. The main disadvantage of such radiators is their relatively high cost. They are much more expensive than regular cast iron counterparts. But this disadvantage is compensated by the reliability, durability and aesthetics of the bimetal.
2. It is worth noting that with a negative one-time exposure to air and water, the steel core of the pipes can begin to corrode. This happens in cases where, in the event of an accident or repair work, the coolant is drained from the heating system.
3. Pipes come into disrepair from antifreeze, which is used as a coolant in autonomous networks of private houses. If you plan to use “non-freezing”, then it is better to refuse from combined products and to prefer cast iron or aluminum.

Note! The best option is to choose batteries with a copper core and an aluminum housing. The oxide film on the pipes has good strength and will become their protection against corrosion. Another way to get rid of rusting is to buy batteries with a stainless steel core.

Manufacturer selection

Choosing this or that model of radiator, take into account that it is not about the quality of this product. The fact is that such devices are subject to mandatory compliance certification. Therefore, there are no defective and obviously poor-quality products in our market.

Simply, the battery "economy" class have a lower cost due to such factors:

• material for their production took less;
• constructively, they are a bit simpler;
• the final finishing of the products was not done very carefully.

Note! Batteries presented in the class of "economy" (up to 350/400 rubles for one section), which make the Chinese and little-known Russian manufacturing companies, can not be attributed to poor counterparts. They can be used. Only it is necessary to take into account that they withstand less pressure coolant and look less aesthetically pleasing.

Which models are worth staying at?

Batteries of average cost (and this is 400/600 rubles for one section) are the main part of all offers in our market of heating devices.

There are several companies here.

1. Russian manufacturer Rifar.
2. Italian bimetal global heating batteries.
3. Also the Italian company Sira, which invented these devices.

There are almost no qualitative differences between them. You have to choose only for functionality and aesthetic reasons.

There are practically no more expensive and ultra-reliable models of combined radiators on our market.

1. It is only necessary to say about the lineup Rifar Monolit. It has a monolithic steel core that can withstand the working pressure of the medium up to 100 atm.
2. The second lineup of the “elite” category is Piligrim batteries. They have copper pipe cores, almost non-corrosive.

Device functionality

1. If you think which batteries are more functional, then most of them are almost the same for this feature. It is worth noting that some manufacturers produce models with non-standard axle spacing.
2. All companies offer radiators with a distance of 500 and 350 millimeters.
3. However, if the narrowest devices are needed (span of 200 millimeters), then it is worth knowing that only Rifar, BiLUX and Sira produce them.
4. The very same dimensional analogues (800 mm) are manufactured only by Sira.

Separately, it must be said about several rulers from Rifar, which have additional functional capabilities.

1. The first of these is the bimetallic Rifar Monolith bimetallic radiators mentioned above.
2. The second is the Rifar Flex model. They can be purchased (on order) not straight, but rounded. This feature makes it possible to mount them along rounded walls.
3. The third line? radiators Rifar Ventil. They have bottom connections for connection. The heating scheme with the lower connection is especially common in their own homes. A mechanical type thermostat is mounted in such a radiator to regulate the heat output of the device.

Conclusion

Bimetallic radiators are the modern, reliable and effective heating device. Although their cost is higher than conventional analogues of iron and steel, but it is compensated by the high performance of the devices. Check out the video in our article. You will get additional information from it.