Homeliness, Tools and equipment
How to choose a vacuum radiator. Vacuum radiators: reviews
Each of us before the start of the heating season ponders the issue of installing more modern, and consequently, efficient equipment. Agree, the more efficiently from the radiator is transferred heat to the room, the better.
About the device
It can be said that a vacuum radiator is not a revolutionary discovery. It is known for a long time, it's another thing that popularity gained only in recent years. The device is quite simple. In appearance, we have a conventional sectional radiator, but as a heat carrier we use not water, but a lithium-bromide solution, which begins to boil at +35 degrees Celsius. To minimize the pressure in the system, it is necessary to completely remove the air from here, hence the name - vacuum. In the lower part of the radiator, water flows, which does not come into contact with the coolant. These liquids contact the wall of the metal tube. It turns out that the water warms the coolant, and he quickly gives heat to the walls of the radiator.
In detail about the principle of action
Since we are already a little acquainted with the design, I would like to better understand the operation of the device. So, from the system comes hot water, which transfers heat to the lithium-bromide solution. Due to the low boiling point, it evaporates rapidly, then the condensate flows down and again turns into steam. For this simple reason, the bottom wall of the pipe is intensively cooled. The difference in temperature contributes to the fact that the heat flow increases.
Who will approach this method of heating
In most cases, it makes sense to think about buying a radiator of this type in the country or in a large country house. Due to the fact that in rooms with a large area it is necessary to heat a large amount of coolant to a high temperature. And vacuum radiators of heating allow to reduce essentially expenses for heating. Moreover, the room will bask considerably faster. In addition, the radiators have several sensors. When the desired temperature is reached, they will turn off and the boiler will go into standby mode. What is more interesting: absolutely any boiler will do. It does not matter if it works on solid or liquid fuel. Of course, one can not say that such batteries do not have their own nuances and shortcomings, they do exist. But we'll talk about this a little later. And now let's deal with the choice.
How to choose a vacuum radiator?
Before buying it makes sense to pay attention to the quality of the product. It can be said that the liquid used as a coolant is poisonous. Therefore, you should not have any contact with her. In order not to be mistaken, pay attention to the quality of assembly, connection and tightness. Of course, the last moment is very significant, and it is almost impossible to determine it by eye, but when testing the system everything will immediately fall into place. In principle, the role of lithium bromide also plays a role. It should not be too much. To check this, take the radiator in your hands and try to shake it. If you hear only a small rustle, then everything is in order. When the transfusion of liquid is heard, this indicates that it is too abundant. Do not forget that the vacuum heating radiators, the principle of operation of which we have already considered, must be completely hermetic.
Vacuum heating radiators: consumer reviews
According to statistics, many prefer other types of heating. The reason is quite simple - the possibility of leakage from the vacuum radiator. Let it be negligible, but it is. Agree, this device is no longer put in the children's room. Well, if a breach in the case is detected immediately, but if not? The results may not be the best. This is perhaps the main drawback, according to potential buyers.
But there are also those who speak very positively about such radiators. Many say that this allows you to save significantly on average 20-40% on electricity. This can be believed, because the boiling point of the coolant is rather low, and its heat transfer is at a high level. In addition, there are also responses regarding the appearance of the slightest crack in the case. You can be sure that in this case the room will quickly become cold. Depressurization will lead to the fact that the system will have atmospheric pressure, and this, in turn, will increase the boiling point of the coolant. In principle, these are all the advantages and disadvantages that, according to users, vacuum radiators have heating. Reviews, of course, largely depend on the manufacturer.
About EnergyEco
We can safely say that these are the most famous vacuum heating radiators of Russian production. The company produces devices made of carbon steel with a thickness of 1.5 mm. The approximate heat transfer of one section is 170 kW at an operating pressure of 0.6-1.3 MPa. In principle, the product can withstand a pressure of 2 MPa, and already at 5 MPa it is completely destroyed. At consumers products "Enerdzhieko" practically does not have negative responses, on the contrary, everyone speak about high quality of assembly.
It can not be said that such a pleasure will cost you cheap. So, a six-cell battery costs about 300 euros, in an aggregate for 12 sections - 550 euros. But, despite this significant drawback, an electric vacuum radiator is purchased not only for apartments and country houses, but also for heating production buildings and offices. As noted above, this popularity is due to significant savings compared to cast iron and aluminum radiators.
Install the vacuum radiator with your own hands
If there is no desire to pay experts money for the assembly, then you can do without your own efforts. Practical experience you may not be, but here is the theoretical knowledge is better to pre-dial. There is nothing complicated here, and all the work is done in a few simple sequential stages.
First, you need to dismantle the old heating system, if, of course, you have not already done so. For this, the coolant is preliminarily drained. Then apply the fixing points for the vacuum radiators. Install the brackets and check them for stability and durability, and only then hang the battery. If the fastening fails, the radiator may fall and become damaged. At the next stage ball valves are sealed. To do this, you can use a conventional sealant. To the cranes, it is necessary to connect the main pipeline and re-seal the system. Please note that during the cleaning of joints, you should not use abrasive. This is due to the fact that in the system the metal particles pose a danger to the pump and seals. At the last stage, the coolant is poured into the system.
On the advantages and disadvantages of vacuum radiators
Most of the advantages of such devices have already been described. For example, a vacuum radiator can work both on wood, and on coal or gas. No exception are the electric power sources, as well as innovative solutions such as a solar battery , etc. At the same time, the amount of water in the system is reduced to a minimum, by about 70%. It is only needed to heat the coolant. In addition, you can forget for ever what the air jams and rusting inside the radiator are. At the majority of manufacturers the declared service life is about 30 years, and the efficiency of devices is 98%.
You are probably wondering why, then, vacuum radiators in Moscow and, indeed, in many other cities of Russia are not too common? It's all about their high cost. However, in Europe, this method of heating the room is very popular, and there are not such radiators there too much.
Conclusion
As you can see, this is a rather interesting way of heating. However, in view of the high cost and possible poor-quality assembly, many consumers still prefer radiators, where water is the main coolant. By the way, at installation it is recommended to glue to the wall an isolon or a foil, that is a reflector. This will achieve even better effect in terms of heat transfer. As you can see, vacuum radiators have their strengths and weaknesses. But in any case, to buy them or not, it's up to you and only you. If you are sure of their safety and you have free money, then why not?
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