Bimetal radiators from a popular Italian manufacturer on the heating equipment market appeared not so long ago, but despite this, they have already won the recognition of most consumers. For example, today Sira bimetallic radiators are incredibly popular, due to their many advantages.
Description
The sections of heating devices consist of a pair of steel channels (tubes) for the passage of the coolant located vertically and die-cast in high-quality aluminum alloy. As a result, a symmetrical and unified modern design is formed relative to the center of gravity. The minimum contact surface of the aluminum alloy with the coolant and the absence of “pockets” in the heads of the sections — sludge and gas collectors — minimize the risk of gas formation and corrosion.
The original design of the ends of the section allows them to clamp ring gaskets made of heat-resistant rubber inside the grooves with nipples, which ensures good tightness.
Advantages and design features
- Sira bimetallic radiators have an extraordinary design. The complete absence of sharp corners is ideally combined with a gracefully curved shape. It is not only convenient, but also beautiful, which is confirmed by numerous consumer reviews.
- These heaters withstand high pressure.
- Sira bimetallic radiators are characterized by good heat dissipation.
The indisputable advantage of these devices is the ability to dock any number of sections. Low cost, efficiency, reliability, durability and quality are just a few of the reasons why you should buy a radiator of this brand.
Sira bimetal heating radiators , in comparison with other heating devices, differ:
- Silent operation and fast heating.
- High heat dissipation due to a special combination of metals.
- Lack of welding seams.
- Long service life, which, if used correctly, can be more than 25 years.
Specifications
When choosing equipment for heating, you need to know about the main characteristics that you need to pay attention to in order to select devices that fully meet the requirements.
- Operating pressure. This parameter can be indicated in MPa or atm. It should be noted that 1 MPa = 10 atm. The bimetallic radiator Sira concurrent is designed for operation at an operating pressure of 16 to 35 atm. Moreover, the pressure in the centralized heating system is not more than 15 atm., Autonomous - not more than 12 atm.
- Heat dissipation (W). This parameter depends on the power of the heater, so when choosing these devices it is very important to pay maximum attention to this.
- The center distance (mm) is the length measured between the lower and upper manifold, and it is 200, 300, 350, 500 and 800 mm.
Selection tips
To choose Sira bimetal heating radiators, you must responsibly approach the calculation of the required number of sections. Heating appliances should be purchased based on the heated area.
One section can be up to 2.4 kW. If problems arise during the calculation process, then you can always seek help from specialists who will select the necessary number of sections, taking into account all requirements. If you are confident in your own abilities, then these calculations can be done independently.
Payment
- If there is one wall in the room, there is one window opening and the ceiling height is 2.7 m, then a 100 W device will provide full heating of 1 m 2 .
- If the room has two walls facing the street, there is one window opening, then for heating 1 m 2 you will need a radiator with a power of 120 watts.
- If two walls go out into the room, there are two window openings and a ceiling height of 3 m, then for heating 1 m 2 you will need a 130 W device.
Also, when calculating, it is important to remember that screens for a heating radiator reduce the heat transfer of heating devices.
Installation
Bimetal radiators can be installed in heating systems with copper, steel and polymer pipelines.
To achieve the calculated heat transfer during installation, it is necessary to adhere to the following optimal distances:
- At least 100 mm to the windowsill.
- At least 30 mm to the wall.
- At least 100 mm to the floor structure.
To protect the elements of the heating system from corrosion and deposition of hardness salts (which is characteristic not only for boilers, pipelines, but also for radiators, regardless of the material from which they are made, whether it is cast iron, steel or aluminum), it is recommended to add to the circulating fluid special reagents based on aliphatic polyamines. The approximate consumption is: for 200 liters of water 1 liter of reagent.
It is recommended to install a manual or automatic air release valve on each radiator bimetallic Sira 500 or any other. When installing the valve, it is very important to first verify that the heater is disconnected from the general system.
It is strictly forbidden to disconnect devices from the heating system (block both shut-off devices at the inlet and outlet), except for cases of their dismantling and maintenance.
It is not allowed to carry out water intake from the heating system.
It is also strictly forbidden to operate heating appliances on water from a hot water supply system.
It is extremely undesirable to install radiators in heating systems, where the waste fluid from technological processes, which contains aggressive components in its composition, acts as a coolant.
It is forbidden to directly draw into the heating network of make-up water from hot water supply without prior high-quality water treatment.
Cost
The approximate average cost of heating appliances of this brand is indicated in the table below. At the same time, there are proposals where Sira RS bimetallic radiators cost from 379 to 813 rubles per section. It is also worth noting that the price is constantly changing depending on the market situation and season.
| Number of sections | Length | Heat dissipation | Cost |
| 1 | 80 mm | 199 watts | 700 rub |
| 4 | 320mm | 796 watts | 2 700 rub. |
| 5 | 400 mm | 995 watts | 3 000 rub. |
| 6 | 480 mm | 1,194 watts | 4 000 rub. |
| 7 | 560 mm | 1393 watts | 4 700 rub. |
| 8 | 640 mm | 1592 watts | 5 300 rub. |
| 9 | 720 mm | 1791 watts | 6 000 rub. |
| 10 | 800 mm | 1990 watts | 6 600 rub. |
| 12 | 960 mm | 2388 watts | 8 000 rub. |
Consumer Reviews
Sira bimetallic radiators, despite the good heat dissipation, are not expensive. All models of this manufacturer are developed taking into account the peculiarities of our climate. During the operation of bimetallic heating appliances, the manufacturer guarantees that the radiators are able to withstand operating pressures in the heating system up to 40 atm. For this reason, we can confidently talk about the high reliability and excellent quality of these products.
It is also worth paying attention to that, studying the reviews about these radiators, you can find a lot of positive information that these radiators have a modern sophisticated design. What allows them to be installed in premises regardless of their design. And at the same time, you do not need to additionally purchase special screens for the heating radiator.