Dual-circuit gas boilers will provide both heating of the house and hot water supply. They cost more than single-circuit ones for natural reasons, but there are successful and unsuccessful models on the market. In this rating we will present best boilers with the most positive reviews. But first...
Features of boilers with two circuits
Of course, double-circuit gas boilers heat the room and provide hot water supply. It most often uses two heat exchangers or one bithermal one. If the boiler uses 2 heat exchangers, then the first heats the coolant (that is, provides heating in the house), and the second provides hot water supply.
But first of all, a double-circuit gas boiler is designed to provide hot water supply. When you open hot water in the bathroom or kitchen, the system automatically starts the hot water circuit and the heating circuit is suspended. As soon as the user closes the tap, the room heating circuit will be activated. Such models have proven themselves to be excellent in small apartments; they have low performance, which is quite enough for a home.
As for multi-circuit boilers, they are extremely rare and are almost never used in apartments/private houses.
10 best gas double-circuit boilers
1st place – Leberg Flamme 24 ASD (40,000 rubles)
First place deservedly goes to Leberg Flamme 24 ASD, which will cost 40 thousand rubles. It has collected more positive reviews, so we put it at the head of this TOP.
Characteristics:
- 1st place in the review of the best wall-mounted boilers, which we wrote earlier (see);
- Power 20 kW (therefore, suitable for rooms up to 200 square meters);
- Efficiency 96.1%;
- There is a circulation pump;
- There is a 6 liter expansion tank;
- Reliable protection: gas control, safety valve, overheat protection, pump blocking protection, automatic diagnostics, frost prevention mode.
- The model is in second place in the ranking of boilers with a closed combustion chamber (see. full review ).
The boiler copes well with heating, is reliable and works without failures. A special feature is the high efficiency, as well as the degree of protection. Situations in which there will be a gas leak or flooding of neighbors are excluded. Beautiful model will provide both heating in the house and hot water.
2nd place – Oasis BM-16 (26 thousand rubles)
A less advanced and powerful boiler with a bithermic heat exchanger.
Characteristics:
- Power 16 kW;
- Heated area up to 160 square meters;
- Built-in expansion tank 6 liters;
- Wall installation;
- Protection: gas control, automatic diagnostics, overheating protection.
The effectiveness of this model is beyond criticism. It easily supports the operation of the heated floor, there are functions against overheating and automatic shutdown in case of flame extinguishing, so you don’t have to worry about safety. The device is easy to install and connect, easy to operate, and users respond positively to it. The only possible drawback is its large dimensions with low productivity. Still, with a power of 16 kW it should be less.
Of course, this is one of the best, cheapest and most affordable models.
3rd place – MORA-TOP Meteor PK24KT (42 thousand rubles)
An equally interesting option would be MORA-TOP Meteor PK24KT - a double-circuit convection gas boiler with an adjustable power of 8.9-23 kW.
Options:
- Efficiency 90%;
- Electronic control;
- Circulation pump;
- Expansion tank 6 liters;
- Natural gas consumption – 2.67 cubic meters per hour;
- High level of protection: pump blocking protection, gas control, anti-freeze mode, overheating protection, air vent.
Safe, convenient, economical and environmentally friendly - this is what buyers say about this boiler. It heats perfectly, all the available functionality works like a clock, looks modern and will fit perfectly into the interior of the house. Well, the reliability is also impressive - it works for years and does not break. Well, you will have to change the valves in 3-4 years, but these are minor things.
Considering the few positive reviews (we couldn’t find any negative ones at all), we put it in 3rd place and recommend it to you!
4th place – Bosch Gaz 6000 W WBN 6000-24 C (27-30 thousand rubles)
Characteristics:
- Electronic control;
- Circulation pump and expansion tank 8 liters;
- Natural gas consumption – 2.8 cubic meters/hour;
- High degree of protection, including gas control, pump blocking protection, etc.;
- Auto-ignition, thermometer, etc.
One of the advantages is perfect silence when working. There are many fine adjustments to adjust the heating and hot water supply. The boiler is reliable and safe, even when turned on there is no characteristic sound of a small flame explosion, everything happens smoothly and quietly.
Efficiency: judging by the reviews, the boiler easily provides heat to a cottage with a total area of 180 square meters. All existing batteries heat up to high temperature+ there is always hot water in the tap.
Easy setup, electronic control, high level protection and other goodies... we recommend.
5th place – Navien DELUXE 24K (24-25 thousand rubles)
A convection boiler with two circuits from Navien will cost 25 thousand rubles. This is a reasonable price for this model.
Characteristics:
- Power 9-24 kW;
- Heated area – 240 square meters;
- Efficiency 90%;
- Electronic control;
- Natural gas consumption – 2.58 cubic meters per hour;
- High degree of protection: there are all protection systems, including overheating protection, gas control, safety valve, etc.
The device cannot boast of any unique capabilities. But the main thing is that it is small in size, works quietly, has a remote control in the stock version, and effectively provides heating and hot water.
We recommend choosing a model according to the area. If you have an apartment with an area of 75 square meters, then a 13 kW model will be more than enough. If you choose a power of 24 kW, the boiler will very quickly heat the coolant to the required temperature, turn off, then turn on again, etc. When choosing the “correct” power, the flame will burn continuously without frequent on/off cycles.
A decent, reliable model that will serve for years without problems.
6-10 places
We will indicate other good models in the table indicating the price.
That's all. We would like to remind you once again that the rating is based on customer reviews, so it is logical to consider it objective. Take this into account when choosing and be sure to personally analyze the reviews about the model you are going to choose.
Due to the fact that a large number of new, modified models of domestic and foreign production with different characteristics and price levels have appeared in the range of heating devices offered to consumers, nowadays it is possible to replace an old boiler with a more economical, compact and aesthetic one without any problems. Many owners decide to “kill two birds with one stone” with such a purchase, that is, at the same time solve the issue of autonomous supply of hot water. And now this is not difficult - they are offered a wide selection of double-circuit boilers.
However, such high market saturation often contributes to the “reverse effect”, that is, it makes a choice optimal model– very not an easy task. We will try to help with this - we will provide a list of devices that are consistently included in the constantly changing rating of double-circuit, wall-mounted and floor-mounted gas boilers. True, a reservation can be made: the authors deliberately did not award certain places to the listed boilers - simply so as not to interfere with the subjective factor in this issue. The determining criterion was the positive feedback from consumers who had already tried this technique in practice. In a word, the boiler models indicated in the publication can be purchased with close to 100% confidence in receiving a device of high build quality and with the expectation of its long-term operation.
Of course, when choosing any heating boiler, you need to pay attention to other criteria that affect quality and durability.
Basic criteria for choosing a heating device
Double-circuit boilers are divided into floor-mounted and wall-mounted.
- Floor-standing double-circuit gas boilers, as a rule, are designed for higher thermal output than wall-mounted models, so they are most often installed in houses with a large area. However, for such heating devices with a power of 30 kW or more, a separate room from the living area is required. Therefore, before choosing such a model, it is necessary to study not only specifications and operating rules, but also standards for boiler room equipment.
On sale you can find models of floor-standing gas boilers that do not require power to operate - it is only important that a gas supply with natural or liquefied gas is provided. Similar options units are especially convenient for heating in houses located in rural areas, where power outages are not uncommon. The design of non-volatile boilers is quite simple, but very reliable; such units are more durable than boilers with complex automation.
Efficiency of modern floor models is 90 percent or higher.
- Wall d Double-circuit gas heating appliances, as a rule, are compact in size, so they are convenient to install in small houses or even in a city apartment.
Since such a unit does not take up much space, it is usually placed on the kitchen wall, where all the communications necessary to connect it are located. For the operation of almost all models of wall-mounted heating devices, an uninterrupted power supply is required. Both the circulation pump and the automation unit require power, and, in models with a combustion chamber closed type– fans for air injection and exhaust of combustion products.
Naturally, installing a gas boiler in the living area of the house increases the requirements for the organization more efficient system ventilation.
Unlike floor-standing boilers, in which steel or cast iron heat exchangers are often installed, wall-mounted units, in order to reduce their weight, are often equipped with copper heat exchange elements.
The power of wall-mounted units usually varies from 9 to 30 kW.
Power of double-circuit boilers
In order for a heating and water heating device to be truly effective in operation, it is necessary to correctly calculate its power for a specific house or apartment.
Very often on the Internet you can come across a sign like this:
To be honest, such information, instead of a clear idea, can, on the contrary, raise a lot of questions in the consumer. Agree that the difference in price between 9 kW and 20 kW models will be quite significant, and the spread of options according to such a “coordinate system” is impressive.
In addition, this approach does not take into account the characteristics of the regional climate, the building itself and its individual rooms, the degree of glazing (that is, the number and size of windows) and many other important circumstances. Therefore, it seems more reasonable to carry out more thorough calculations, in which the calculation calculator located below can help.
The basic principle is that calculations are carried out for each heated room separately, and then the results are summed up. This, by the way, gives the owners another “preference” - having such calculation results in hand (and it is best to display them on a plate - for each room separately) it will be much easier and correctly to arrange heat exchange devices in the rooms - radiators or convectors.
Boiler in the kitchen
Every year at the end of the year, thermal equipment specialists sum up interim results and draw up analytical reviews. They help to understand what was most in demand on the market in the past year, and which manufacturers’ products were able to win the sympathy of buyers. Of particular interest is the rating of gas double-circuit boilers compiled in this way, the list of the most popular models and the explanation of why they were included in the list of the best heating equipment.
The market notes stable demand for wall-mounted gas double-circuit boilers new generation. These are improved options, equipped with modern automation and reliable system security. Almost every company uses innovative solutions. They allowed not only to replace the already existing series, but also to offer new unique examples of technical art.
The main trends of this season
Technology today has reached a level where it can control some parameters of its work without human presence. That's why modern manufacturers Gas double-circuit boilers - wall-mounted and floor-mounted - this year, much attention was paid to caring for the environment, as well as improving systems that reduce energy consumption.
The focus was also on ways to increase plant efficiency. Many units had modernized burner designs. Many manufacturers took into account the peculiarities of Russian communications, so series adapted to our realities appeared on sale. These are gas heating boilers in the form of floor and wall options, which do not respond to pressure surges within the network and turn off in the event of a gas or water supply interruption.
Another newfangled trend is moving away from piezo ignition and giving preference to electronic ignition. Today, many floor-standing gas double-circuit boilers do not have a pilot burner. Even budget models differ in a full range of functions characteristic of a particular brand. Therefore, they have LCD screens, built-in weather-dependent automation, and precise control over all processes occurring inside the boilers.
The shift in supplier geography deserves special attention. If several years ago the ranking of the most popular manufacturers was headed exclusively by European concerns, today South Korean brands and domestic companies have joined their ranks.
Recognized leaders
Germany
In the category of luxury heating equipment, the ranking of the most popular models is still headed by the Germans. The leaders are Bosch, Buderus, Vaillant, Viessmann and Wolf. A wide range of models allows you to choose products taking into account individual characteristics autonomous systems heating. Almost all German heating technology is characterized by high quality execution, special reliability, compactness and stylish design.
During operation, gas wall-mounted and floor-standing boilers make virtually no noise. They are easy to operate, easy to install and can operate even with low gas pressure and minimal water volume.
Boiler room Viessmann
But German boilers also have disadvantages, which manufacturers continue to work on eliminating:
- Among the assortment on the Russian market, it is difficult to find models that allow heating private houses or apartments with an area of more than 300 square meters. m.
- The described heating equipment takes a long time to warm up. It takes more than a minute for it to start dispensing hot water.
- Anyone who purchases German gas wall-mounted double-circuit boilers is forced to spend some time servicing them. And all because chimney ducts often become clogged.
Otherwise the technique is impeccable.
Italy
Italian brands are in second place among European manufacturers. Many people are familiar with such brands as Ariston, Baxi, Ferroli, Nova Florida and Saunier Duval. All products are in the middle price segment. Therefore, it is more accessible to the general population. Reasonable price and high quality are the hallmarks of Italian products. The vast majority of the range consists of double-circuit wall-mounted gas boilers designed for the assembly of autonomous heating systems and hot water supply lines.
Baxi LUNA-3 COMFORT 240
The list of advantages of “Italians” is as follows:
- A special approach to production allows us to achieve high quality. Entrepreneurs spend a lot of effort and time on improving the qualifications of their staff. Therefore, each technical unit is assembled by the hands of highly qualified workers.
- Every year, part of the profits is invested in scientific developments. So production is constantly modernized and expanded, which makes it possible to produce interesting new products that attract the attention of potential buyers. At the same time, each specific market is studied very carefully, and changes are made to production schemes taking into account its characteristics.
- A huge range allows you to choose an Italian gas boiler for a specific room, house or apartment.
- Baxi and Ferroli boilers have a self-diagnosis system. This is the latest know-how in the production of the described heating equipment. Other brands boast a simple and reliable control system, extremely convenient for daily use.
- Italian boilers do not overuse fuel and operate even with a sharp drop in gas pressure and at very low atmospheric temperatures.
It is possible to install boilers without allocating a separate room for heating equipment. In cramped conditions, compact dimensions play a big role. Italian heating equipment is installed quite quickly, but there is one BUT. Its installation can only be entrusted to specialists licensed to install wall-mounted and floor-mounted double-circuit gas boilers.
France
Chaffoteaux Alixia 24 FF
French manufacturers close the top three. Brands such as Chaffoteaux, Chappee, De Dietrich and Frisquet rely on three components - reliability, durability and high quality. They are doing everything to ensure that these three aspects become the flagships of production.
French manufacturers of gas wall-mounted double-circuit boilers have been present on the domestic market since 1996. During this time, not only branded sales offices were opened throughout the country, but also service centers offering high-quality service for the products described.
Over the past decades, France has been able to present several high-profile premieres demonstrating great innovative potential. Therefore, French manufacturers managed to stay in the ranking of the most sought-after and popular brands. But the Polish brand Termet, a Slovak trademark Protherm and Electrolux from Sweden.
Asians
Recently, Korean brands have also become more active. The concerns “Celtic”, “Daewoo”, “Kiturami” and “Navien” have long been trying to win the sympathy of consumers. The Navien trademark received the title “Breakthrough of the Year” this year. Korean gas double-circuit boilers are very reliable, versatile and fit well into autonomous heating schemes.
The Navien concern has chosen the field of innovative design as its main strategic direction thermal equipment. This allowed him to launch the production of wall-mounted double-circuit boilers of a new generation with exceptional technical characteristics.
Let us outline the main ones:
- Korean gas wall-mounted boilers very compact and safe to use.
- They demonstrate high operating efficiency in low temperature conditions, which is very important for the Russian climate.
- The stability of operation is not affected even when the gas and water pressure drops to a minimum.
- They are not afraid of power surges either.
- The presence of an automatic system eliminates the possibility of defrosting the boiler.
Note! The presence of intelligent filling allows the boiler to adapt to existing weather conditions and independently set the necessary operating modes. The boiler will always function economically and efficiently, and for this you do not need to constantly look after it.
Convenience, ease of use, the ability to use the latest scientific developments and not overpay for them - this is what allowed Korean gas double-circuit boilers to quickly gain space in the market and stand on a par with the products of the listed European manufacturers.
To be fair, it is worth noting that Russian manufacturers, for example, Gazapparat, AZGA and Signal, have strengthened their positions in the market. They are also capable of competing, but for now they help set up large heating systems for residential areas and countryside villages, shopping centers and production workshops.
A little more analytics
Ferroli Pegasus DK
Speaking about the main trends of the outgoing year, it should be noted that modern manufacturers are concerned not only with preserving the environment and searching for new energy-saving technologies, but also with the opportunity to increase the efficiency of double-circuit wall units. Therefore, today you can find double-circuit boilers with a power of more than 30 kW on sale.
The German concern Vaillant was the first to launch such models - the power of its products is 36 kW. Then the Italians distinguished themselves, and the Frisquet brand offered a series of wall-mounted boilers with a capacity of 45 kW. South Korean Daewoo offered a model whose power was increased to 40 kW.
The boom in flow-through heat exchangers is gradually passing. Today, a series of wall-mounted double-circuit boilers are more popular, the package of which can include storage boilers. This tandem turned out to be more convenient and practical. Ferroli and Frisquet, Hermann and Nova Florida, the German Viessmann this year released wall-mounted boilers with a built-in microboiler, the volume of which does not exceed 4 liters.
Large capacity for storing hot water was offered by Ariston and Baxi, Beretta and Biasi. As well as Buderus, Chaffoteaux, Chappee and Ferroli.
Significant changes have also occurred in smoke removal systems. South Korean and Japanese brands have proposed using gas outlets of larger sizes than those of European manufacturers. Now you can see the diameter of the gas outlet pipe 70/100 and 80/110 versus 60/100 standard.
Generalization
Ferroli Diva F16
As you can see, a large number of technical innovations were presented this year. It was they who created the demand, allowing some manufacturers to maintain their leading positions in the competition, while others burst onto the crest technical progress in the ranking of the most popular and in-demand heating equipment. The leaders are still Germans, but the Asians have long been treading on their heels. It's nice that domestic producers were able to attract the attention of potential buyers.
Today's heating equipment market will satisfy the needs of any buyer, and offers for gas boilers are no exception. Here you can find many models of both budget units and expensive top-end equipment. In conditions of such saturation, it is difficult to determine which gas boiler is the most reliable, especially if you have not had to buy these devices before.
Statistics on the sale of these units by dealers and analysis of the popularity among consumers of various models of gas heating boilers make it possible to form and publish such a dynamic factor as the rating of this equipment, which will help the inexperienced buyer.
Appearance of modern gas heating boilers of various designs
Why should you choose a gas boiler?
Installing heating equipment that consumes gas as fuel has a number of advantages and even advantages over the use of units using other types of fuel:
- high equipment efficiency;
- wide range of prices for gas boilers;
- no need to create fuel reserves;
- affordability of this natural energy source;
- high degree of automation of gas heating boilers.
When purchasing such an installation, the buyer naturally expects warmth in the house, safety during operation of the boiler and the durability of this equipment.
Regardless of the model and manufacturer, the heating temperature of the coolant is approximately the same for all gas boilers. In addition, before being released onto the market, units undergo mandatory testing for compliance with safety standards; top-spec models are equipped with self-diagnosis and multi-level protection systems.
After analyzing the service life, the need for repairs and feedback from experts, buyers can select up to ten models of gas boilers, characterized by a high degree of efficiency, safety and ease of use.
Rating of wall-mounted gas boilers
Wolf CGG-1K-24
Double-circuit gas water heating unit made in Germany Wolf CGG-1K-24 wall-mounted
Wolf CGG-1K-24 (made in Germany) are the most reliable wall-mounted double-circuit gas boilers with a closed combustion chamber with forced smoke removal.
Important! Retraction carbon dioxide and oxygen supply is carried out through separate or concentric chimneys (air ducts) - a special sensor independently regulates the fan speed depending on the length of the pipe for removing combustion products.
Advantages:
- high quality and efficiency;
- rational placement - possibility of installation close to the wall;
- the ability to use mains or liquefied gas (after replacing the nozzles and making changes to the settings);
- fast water heating;
- smooth start;
- compact dimensions;
- light weight (weight up to 45 kg);
- reliability;
- long warranty (24 months).
Flaws:
- high cost (52-55 thousand rubles).
Baxi Luna-3 Comfort 240 Fi
Double-circuit gas boiler Baxi Luna-3 Comfort 240 Fi for wall placement The wall-mounted double-circuit gas boiler from Baxi is perfectly adapted to the specifics of operation in the CIS countries. It works even with minimal gas supply. The equipment has a removable digital panel, which allows you to install it in any convenient place. It also acts as a room temperature sensor. It runs on fuel from a line or bottle. A filter is provided for the water supply. The equipment has high quality workmanship and excellent functionality.
Advantages:
- stable operation at low gas pressure;
- closed combustion chamber;
- special anti-corrosion coating of copper components of the heat exchanger;
- possibility of connecting an additional boiler for a hot water supply system;
- two heating modes (normal and warm floor);
- timer with weekly programming;
- it is possible to connect an outdoor temperature sensor;
- digital monitor, which displays all the necessary information;
- electronic self-diagnosis.
Flaws:
- high cost (45-47 thousand rubles);
- Sensitivity of electronics to power surges - it is necessary to connect through a stabilizer.
Bosch Gaz 6000 W WBH 6000-24C
Gas wall-mounted double-circuit boiler from the famous German company was created adapted to the climatic conditions of Russian regions, as well as the characteristics of domestic electrical and gas networks.
Double-circuit heating boiler Bosch Gaz 6000 W WBH 6000-24C (Germany) wall-mounted Advantages:
- compactness;
- modern design;
- high efficiency;
- stability of operation at constantly changing gas pressure;
- the ability to connect to a cylinder or line (after changing burner nozzles and adjustments);
- modern smoke exhaust system;
- high security;
- ideal price/quality ratio;
- high quality assembly.
Flaws:
- quite high cost (27 - 33 thousand rubles)
- small thickness of steel body parts.
Navien Deluxe 24K
Double-circuit boiler with a closed combustion chamber, a highly functional unit. It has a closed combustion chamber. Adapted to working conditions in the post-Soviet space.
Double-circuit gas boiler with increased functionality Navien Deluxe 24K Peculiarities:
- Built-in frost protection - if the temperature of the liquid in the heating system drops to 10 degrees, the pump automatically turns on; upon further cooling to 6, the burner starts until the water reaches 21ºС.
- Stable operation at low pressure in the gas and water pipes - the system operates at the corresponding indicators of 4 bar and 0.3 bar.
- A control panel is provided.
Advantages:
- separate stainless heat exchangers;
- modulated boost, increasing efficiency;
- internal components made of high quality copper;
- affordable price;
- high quality assembly;
- wide functionality.
Flaws:
- instability of outlet water temperature.
Protherm Cheetah 23 MOV
These devices are perfect for installation in apartments and country houses. They are double-circuit boilers, which allows you to heat water and simultaneously heat the room. Efficiency – up to 93%.
Advantages:
- ease of operation;
- a monitor showing all the necessary information about the operation of the device;
- automatic diagnostics;
- several modes - warm floor, comfort and winter/summer;
- there is an option for connecting automatic weather monitoring systems;
- built-in pump;
- protection against freezing and overheating;
- operates from a gas line or cylinder.
Wall-mounted gas heating boiler Protherm Gepard 23 MOV Flaws:
- It is imperative to install a separate filter on the incoming water to protect the boiler system from salts;
- Possibility of installation only if there is a chimney in the home.
Rating of wall-mounted condensing gas boilers
Vaillant ecoTec plus VUW INT IV 246
Wall-mounted gas boiler made in Germany Vaillant ecoTec plus VUW INT IV 246 German gas boiler. The thermal power of the unit is 20 kW, which allows it to be used for heating housing up to 200 square meters. m, the device is designed for stable water heating and heating. To increase the temperature of the water in the pipeline, a hidden condensation system is additionally turned on, due to which it is possible to achieve the declared performance with significantly lower fuel consumption.
Peculiarities:
- Built-in function for increasing power in DHW mode.
- Also suitable for low temperature heating systems.
- External and internal oxygen supply to support combustion.
- Backlit display.
- Electronic ignition.
- Heat exchanger made of stainless alloy.
- Built-in pump.
- Expansion tank 10 l.
Advantages:
- modern design;
- high quality;
- efficiency.
Flaws:
- connects to the general network only through a voltage stabilizer;
- high cost (75-77 thousand rubles).
Baxi Duo-tec Compact 24
An inexpensive boiler made in Italy, with a closed combustion chamber and heat exchangers made of of stainless steel. The model has a simple and convenient control. Installation of the unit is not technically difficult.
Important! The device has an adaptation system to different operating conditions. Even if the gas pressure drops, the rated power is maintained.
Gas heating boiler made in Italy Baxi Duo-tec Compact 24 with LCD display Advantages:
- light weight;
- compactness;
- high efficiency;
- low noise and vibration levels;
- efficiency;
- quality components and reliable assembly.
Flaws:
- dependence on power parameters in the network;
- quite high cost (45-53 thousand rubles).
Rating of floor-standing single-circuit gas boilers
Viessmann Vitogas 100-F GS1D870
Gas single-circuit boiler Viessmann Vitogas 100-F GS1D870 floor-standing This model is a single-circuit gas boiler with an open combustion chamber. Its thermal power is more than 27 kW. Due to its small dimensions, there are no installation problems - it can be located even in a small room. The products of this manufacturer are always of high quality.
Advantages:
- high efficiency;
- heat exchangers are made of gray cast iron;
- weather-compensated automation;
- periodic ignition system;
- silent start;
- compact dimensions;
- modern design;
- economical work.
Flaws;
- high cost (141-143 thousand rubles).
Prothrem Bear 30 KLOM
The equipment is a single-circuit boiler, which is manufactured in Slovakia. It has an open combustion chamber. Heat exchangers are made of high quality cast iron. Excellent for heating residential buildings, industrial premises and country houses.
Single-circuit floor-mounted gas boiler Protherm Bear 30 KLOM Advantages:
- electric ignition;
- atmospheric burner made of stainless alloys;
- smooth power adjustment;
- informative monitor;
- protection of components from condensation;
- cooling circuit;
- winter/summer mode is provided;
- compact dimensions;
- easy installation;
- reliable assembly.
Flaws:
- open combustion chamber;
- quite high price (45-55 thousand rubles);
- the need for a chimney.
What kind of boilers should you use? On the heating equipment market today there are many models of units from various manufacturers, which have different modifications. But from this variety it is necessary to choose devices that have an optimal price/quality ratio, taking into account the required power and functionality.
Heart of Autonomous heating system– hot water boiler. Both the air temperature in the house and the amount of heating costs depend on its quality, functionality and efficiency. In order not to make a mistake in choosing this important device, it is necessary to study every detail and function of the device. The rating of wall-mounted gas heating boilers will help you save time on getting familiar with the equipment - the top positions in it are always occupied by equipment that has earned the trust and recognition of other users.
Classification of gas boilers
Lightweight and compact wall-mounted gas heating boilers are suitable for autonomous systems in individual cottages and city apartments. This group combines several types of equipment that differ fundamentally in terms of design and operation. Here is a list of the most important design features, which you should pay attention to before choosing a boiler:
- Number of circuits: single-circuit ones are focused only on heating, and double-circuit ones provide hot water supply functions in parallel.
- Combustion chamber type: open or sealed (closed).
- Exhaust gas removal method: natural or forced.
- Energy dependence: non-volatile wall-mounted gas heating boilers operate without being connected to electricity.
- Burner type: atmospheric or modulating with automatic regulation power.
Diagram of a double-circuit boiler with a modulating burner and forced draft
Consumer ratings: independent choice of buyers
The best condensing boilers
Condensing boilers are more expensive, but the overpayment more than pays off economical consumption gas and high efficiency of heat generators, amounting to at least 95-98%. It is believed that the best wall-mounted gas heating boilers of this type are produced by the German company Viessmann.
Taking the lead in the condensing appliance segment is the compact and elegant Viessmann Vitodens 100-W with a maximum output of 35 kW and a hot water preparation speed of 14 liters per minute.
The second position in the ranking is occupied by the single-circuit Ariston Clas Premium Evo System 35 FF, adapted for low gas pressure. The device is equipped with a primary copper heat exchanger and a secondary steel plate-type heat exchanger. The maximum power of the device is 35 kW.
On the third line is the German Bosch Condens 5000 FM heat generator, which supports operation in cascade and with solar collectors. The device is equipped with electronic control of the composition of the gas-air mixture and a unique heat exchanger with patented tube configuration technology.
Two in one: the best models of dual-circuit heat generators
Combination boilers solve two important problems at once: they heat the house and provide it with hot water. These devices are in demand among owners of individual buildings and apartment residents who do not want to depend on centralized hot water supply.
Vaillant turboTEC PRO VUW with forced retraction earned the most positive reviews in this group flue gases and a built-in plate water heater with a capacity of 11.5 liters of hot water per minute. The device is equipped with a closed combustion chamber and a modulating burner. The efficiency of the device is 93%, power is from 8 to 24 kW.
VaillantturboTECPROVUW
Italian takes second place in the ranking Baxi Main Four 240 F, capable of preparing 13.7 liters of hot water in a minute. Baxi gas wall heating boilers are equipped with a closed chamber. The devices have traction control sensors, a thermostat to prevent water overheating, and protection against freezing and scale.
In third place is the German Bosch ZWA 24-2A with an efficiency of 95% and a water heating rate of 11.4 liters per minute. The device easily copes with servicing a house with an area of up to 240 square meters. meters. The compact boiler is equipped with a three-stage circulation pump and eight-liter expansion tank.
The Neva Lux 7218 double-circuit gas boiler was not included in the top ten, but it can be noted as one of the most affordable devices. The device is equipped with a biothermal heat exchanger, modulated burner, electronically controlled and LCD display. The domestic boiler is aimed at heating a house with an area of up to 180 square meters. meters.
Five leading manufacturers of wall-mounted water heating boilers
The manufacturer plays an important role in the selection of boiler equipment. 70% of consumers are willing to overpay for a brand if its name is associated with product quality.
- Viessmann
The first position in the customer trust rating is occupied by Viessmann - a reputable German manufacturer energy saving equipment. Wisman condensing wall-mounted gas heating boilers are equipped with a simulated burner that maintains combustion when the gas pressure is insufficient.
- Protherm
In second place is Protherm, a manufacturer of high-quality and functional equipment at an affordable price. The range of heat generators of this Slovak brand includes several lines of devices with open and closed combustion chambers and a wide power range.
In third place in the ranking of wall-mounted gas boilers is the leading European manufacturer of equipment for boiler rooms, Wolf. The German company's assortment includes models with different combustion chamber designs, with built-in heat exchangers for hot water and the ability to connect a boiler.
- Buderus
The fourth place went to the German leader Buderus. The Logamax series of wall-mounted boilers is aimed at Russian consumers and is suitable for operation under conditions of gas and water pressure differences.
The top five most popular manufacturers among Russian users is closed by the Italian company BAXI, whose product range includes single-circuit and double-circuit wall-mounted gas heating boilers, including economical condensing boilers.
The most attractive in price
Wall-mounted gas heating boilers of domestic production are recognized as the most affordable in the line functional models. Among Russian manufacturers EPO “Signal” is in the lead, its assortment includes 4 modifications of double-circuit devices of the Angels series. Angels boilers are equipped with a burner with electronic ignition and an automatic ionization-type flame control system.
In the middle price range are Korean wall-mounted gas heating boilers of the Navien brand, represented by groups of high-quality double-circuit devices with a separate and coaxial smoke removal system, operating uninterruptedly under conditions of low and varying gas and water pressure.
Wall model NAVIEN DELUXE
Daewoo is another Korean giant that supplies the market with inexpensive naturally aspirated models and economical boilers with a closed combustion chamber. For ease of control, the devices are supplemented remote controls and liquid crystal indicators.
The assessment of a consumer group may not always coincide with personal opinion, so we recommend considering not only the models that received the most votes, but also other devices famous manufacturers, as well as new products that have not yet gained the trust of customers. In order not to make a mistake with the choice of durable equipment, it makes sense to seek help from a specialist who will take into account the needs of the family and real possibilities existing system heating.
Video: how to choose a gas boiler
