Gas double-circuit boiler: customer and expert feedback

Among the heating equipment, gas double-circuit boilers are the most popular. Units of this type are considered the most sold, which is due to the combination of two functions in one device. If necessary, you can also heat water for domestic needs, and maintain the optimal heating temperature in the house. Let's take a closer look at what a gas dual-circuit boiler is. Feedback and useful advice of professionals will also be given in our review.

About the device

Let's figure it out, thanks to which it is possible to achieve the possibility of obtaining hot water and maintaining the temperature of the heating system. It is easy to assume that for this purpose the boiler must be equipped with two circuits. According to one of them, water enters the heating system, and the second one heats up for domestic needs. The heat exchanger is mostly one, although today there are models with two heating elements. This somewhat complicates the design, but it makes it universal. The heat exchanger is installed above the gas burner, which can be atmospheric or inflatable, but more about this later. As a result of the combustion of fuel, in our case it is natural gas, some heat is released, which diverges through the metal walls of the heat exchanger. It releases heat to the radiator, which transfers it to a fluid moving along a closed loop.

In principle, the gas dual-circuit boiler reviews are mostly positive. Nevertheless, the percentage of good responses is closely related to the manufacturer. As noted somewhat above, there are two types of dual-circuit boilers for the installation of a heat exchanger. The first contains a primary and secondary heat exchanger, the second - a biometric (pipe in a pipe). Well, now let's go further.

Principle of operation of double-circuit boilers

In the heat exchanger there is a heat carrier: in our case it is water that is heated in the process of natural gas combustion. Most modern dual-circuit boilers can heat water in a wide range from 35 to 80 degrees Celsius, although these figures may vary depending on the model and manufacturer. Above the combustion chamber is a heat exchanger, it is in most cases made of copper and has an additional external insulation. When the burner starts to work, the coolant is heated to a certain temperature, which is set manually. After that, the pump starts, which circulates water through the system. When the desired temperature of the carrier is reached, the unit goes into an economical mode, that is, a reduced gas supply. This is the main advantage that a gas dual-circuit boiler has. Reviews say that in this way you can achieve fuel economy by 5-15%.

The water coming from the central water main is usually of poor quality, that is, it has a high content of manganese and calcium salts. When the temperature rises, they give a sediment, as a result, a deposit is formed, which hinders the movement of the coolant. But this applies to the second circuit, which heats water for consumer needs. The first circuit is closed, so it is less exposed to contamination. In order to avoid unexpected problems, it is recommended to install several filters at the input. This will save your gas dual-circuit boiler. Reviews say that it is better to put the filter hard and soft cleaning. And now let's consider the options for placement.

Boiler gas double circuit outdoor: consumer reviews

To date, there are two options for placing boilers: wall and floor. Which one is better? Now we will try to figure this out. But at once it is possible to say that among consumers there are adherents of both the first and the second variant. This is due to many factors. Most people who choose floor boilers need a lot of hot water for domestic needs. And since the productivity and, in fact, the power of such units is several times greater than that of the wall units, this is the best choice. The dimensions of the boiler, mounted on the floor, are quite large, and the body is made of cast iron and steel. Feedback from most consumers suggests that such boilers are very convenient to maintain, especially if the equipment is mounted in a free room. In addition, the design allows you to place inside all the necessary components, for example, a coolant of higher power, etc. If you live in your house or a large apartment, it is better to buy a boiler gas double circuit outdoor. Reviews say that in this scenario the power of the wall-mounted boiler is often not enough. But there is another way - hang the equipment on the wall. Let's look at it.

Two-circuit gas boiler: отзывы и советы покупателей

This option is somewhat more interesting than the above. Partly this is due to the fact that they are produced not so long ago, and therefore almost all models are equipped with the newest equipment. Nevertheless, we can say that such units have a large number of complex electronics. On the one hand, it ensures the accuracy of the operation, but on the other hand the devices are extremely dependent on the DC voltage. Dip in the network can adversely affect modern equipment and disable it. This is evidenced by consumer feedback. But this problem can be addressed. For example, install a rectifier to connect the boiler through it.

The dimensions of the wall-mounted boiler are small, therefore everything that is in the case is made of either a special material or a small power unit is installed. For example, all pipes are thin-walled and very sensitive to water quality. By the way, as the coolant can be used antifreeze - this is the main advantage that the boiler has a gas dual-walled wall. Buyers' comments say that such systems are much more effective in heating the room. As for the power of these boilers, it is indeed somewhat lower than those installed on the floor. Nevertheless, the efficiency in most cases is not less, and sometimes even more. This is an ideal solution for medium and small size rooms. And now let's go through the manufacturers.

Reviews about the products of the company "Beretta"

Boilers from this manufacturer, although they are in great demand among consumers, but far from always have unequivocal responses. In particular, products of low price range are not famous for high quality, while expensive models - better assembly. In general, we can say that the Italian Beretta boilers are products of the economy class, so expecting from them any supernatural results is not necessary. The company manufactures devices for both floor and wall installation. In the range there are options for 12 000 rubles, and for 240 000 rubles. As noted a little bit above, the two-circuit gas boiler Beretta has mixed reviews.

Some users say about the high quality of the product and good efficiency, which is about 92%. In addition, adherents of wall models can not fail to note not only the compactness of the product, but also a small weight. So, the model CIAO 24CAI with a power of 23.8 kW of wall type weighs only 29 kilograms. The cost of such an aggregate is approximately 31,000 rubles. But it is not necessary to say that such a boiler is capable of providing large demands for hot water. Nevertheless, for a family of three people this option is suitable. Proceeding from the fact that the two-circuit gas boiler "Beretta" reviews are ambiguous, we can talk about what needs to be carefully chosen. The more expensive the product, the less chance it will quickly break.

Boilers

Boilers from Germany are considered one of the best. If we talk about an international leader like Bosch, their heating equipment is valued for its high quality, durability and accuracy. Among the range of the manufacturer there are both budgetary and exclusive high-priced models. But, regardless of the price range, any gas boiler dual-circuit "Bosch", the reviews are positive. As an example, it is worthwhile to bring the boiler of the brand "Bosch" WBN 6000-18C RN worth 35,000 rubles. The unit capacity of 18 kW, wall-type, can provide a small room with heat. The maximum boiler output in terms of DHW is about 8.5 liters per minute, which is acceptable. The dimensions of the product (WxHxD) are 70x40x29.9, respectively. The weight of the product is only 32 kg.

All water heating and heating equipment of the company "Bosch" is equipped with heat exchanger protection against overheating. The temperature range of the coolant is 30-85 degrees. If you appreciate the high quality and durability of the work, then your choice is a two-circuit gas boiler "Bosch". Reviews in 95% of cases are positive. Consumers note the high quality of the heat exchanger, attractive body design (regardless of model) and good service. Nevertheless, for the eminent brand will have to overpay about 5-10% of the total amount.

"Ariston" - boilers originally from Italy

The company was opened back in the 1960s. Since then, she has been working on the development of heating equipment. Today, the "Ariston" boilers are known throughout the world for their excellent quality. For the most part, the company is engaged in the manufacture of productive wall units, but in the line there are floor options. If you need a noiseless model, which is also easy to maintain, you can safely choose a gas boiler dual-circuit "Ariston". Customers' reviews are almost all good. So, note the quiet operation of the unit and its economy. But there are significant drawbacks. For example, for some users, electric ignition is a significant disadvantage, as when switching off electricity, you can stay without heat and hot water.

Also, consumers note that the "Ariston" boilers go very quickly to the working temperature and go into an economical mode. Another important point is the compactness of most wall models, many of which do not weigh more than 35 kilograms. Proceeding from all of the above, it can be concluded that if you want to get not only a good appearance, but also a fast, and also quiet operation, then choose a gas boiler dual-circuit "Ariston". Reviews say that the products are really worth your attention, especially since their price, despite the fairly well-known brand, is acceptable.

What else is to be said about the 2-circuit boilers

You probably noticed that a lot depends on the manufacturer, but it's worth mentioning a few general points. For example, it is mandatory to have a surge tank to regulate the pressure of the closed system. Of course, more modern boilers are equipped with sensors (pressure gauges), which at critical pressures transmit a signal to the control element. The latter blocks the operation until the water is drained from the system. Another important point is the control system, which is equipped with two-circuit gas heating boilers . Feedback indicates that the remote control system is more preferable, since it is more accurate and contributes to gas saving. Today, most boilers are equipped with self-diagnosis function. The unit itself will find any deviations from normal operation and signal you about it. But not all devices are equipped with such systems, a vivid example is the two-circuit gas boiler "Buderus". The reviews, however, are good, which is due to the high quality of the assembly.

Experts advise

It is important to take into account also what professionals say about dual-circuit boilers. Here experts draw your attention to the following. If you want to get a product of high quality and for a relatively low cost, then a good solution will be a dual-circuit gas boiler "Proterm". Feedback about this product is pretty good. Despite the fact that this brand is not yet well-known, the company's products are very popular. In the lineup there are both floor and wall models. Nevertheless, it is not recommended to make a choice in favor of the most budgetary ones, since their quality is often inadequate. If you consider the high price range, then professionals pay special attention to "Bosch", "Ariston", "Westen" and others.

Conclusion

We have examined with you quite a few well-known manufacturers of modern boilers. As you can see, everyone responds in different ways. Of course, there are many other good heating systems, for example, two-circuit gas boilers Baxi. Reviews about this manufacturer, although ambiguous, but there is practically no negative. Many consumers notice the possibility of connecting "warm floors" through a boiler, which is a significant advantage of the Baxi boilers. In addition, the excellent reputation among the population is enjoyed by the gas boiler of the two-loop Ferrol. Reviews about this Italian brand are very good. Of course, many sometimes note too inflated prices, but there is no criticism of the quality of the product. That, in principle, and everything that can be said on this topic. When buying, always pay attention to the rating of the boiler on the web and what consumers say, because it will give you a lot of useful information.