Not a single building located in a variable climatic zone can do without a heating system, since heating creates an acceptable indoor microclimate and allows a person to live and work in comfortable conditions. Heating boilers are universal heating devices created specifically for these purposes.
Types of boilers. Atmospheric heating boilers
One of the most common types of such equipment in Russia and other countries is a gas boiler. It operates either on natural gas or liquefied gas. Half of all boilers sold are gas boilers, as the type of fuel they use is one of the cheapest available today.
Depending on where the heating equipment is installed, gas boilers are distinguished between wall-mounted and floor-standing. Floor-standing ones, in turn, are divided into two more groups: atmospheric heating boilers (with an atmospheric burner) and forced-air boilers.
Atmospheric burners have more simple design, and therefore cost less and are quieter. Supercharged ones have greater efficiency, which is why they cost much more. In addition, they can have both a gas burner and a liquid fuel burner. But more on that in the next article, but now we’ll talk about atmospheric heating boilers, their advantages and disadvantages.
Gas enters atmospheric boilers due to excess pressure in the gas main. As already mentioned, such boilers are much cheaper.
Atmospheric boilers can quickly fail if there is low gas pressure. But there are also those that are capable of operating at 2-3 times lower pressure in the gas line. Therefore, it is advised to choose a boiler that allows falling gas pressure up to 5-6 mbar.
The most preferred are boilers that can operate at a power of up to 100 kW, as this allows them to operate over a wider range with changes in gas pressure in the main line. In addition, the operation of such boilers is cheaper.
Atmospheric gas burners are an integral part of the heating boiler
An atmospheric gas burner is an essential part of a heating boiler. An exception may be some Russian-made models, which were created for gasification of certain brands of domestic universal-type boilers. Air enters the combustion zone of atmospheric burners due to the injection effect. This means that the gas that enters the burner pipes also takes with it required amount air for normal combustion.
Typically atmospheric heating boilers already configured at the factory to operate using natural gas, but most manufacturers have kits for converting atmospheric burners to liquefied gas. Only specialists can install such a kit and configure the burner to work with liquefied gas.
As already mentioned, atmospheric burners are especially sensitive to changes in gas pressure. The gas pressure in the line should not go beyond the minimum mark, otherwise the burner pipes may begin to burn out. Many European manufacturers, due to the harsh Russian realities, were forced to lower this threshold to 8 mbr. To prevent fire from occurring, the burners were equipped with a gas pressure control relay, which turns it off if the pressure drops or becomes lower permissible norm. When the pressure returns to normal, the burner resumes operation.
In addition, atmospheric burners in boilers also react to unstable, low voltage. This applies to all types of burners as well as to all energy-dependent equipment. During power surges, the automatic electronic components of the burner may fail. If the voltage drops to 180-160 V, gas valves burners may not open. This problem can be solved by installing a high-quality stabilizer. The best option is to provide the boiler with an uninterruptible power supply.
Thus, the main advantages of boilers with an atmospheric burner are as follows:
- They operate silently;
- They have a fairly high level of efficiency;
- Easy to maintain;
- Boilers of various capacities are available on the market.
The main disadvantages are the dependence on draft and the mandatory presence of a supply and exhaust ventilation system.
In addition to all of the above, atmospheric boilers are very sensitive to construction dust. When it clogs the burner pipes, the passage of gas into the combustion zone becomes more difficult. This causes burnout of the burner tubes. In order to avoid this problem, it is necessary to minimize boiler operation during repair work, install a tightly closing door in the boiler room, which will prevent dust from entering the boiler; regularly clean the room where the heating equipment is located, clean the burner at least 2 times a year, and for the period of repair or construction work- every month. If you follow these recommendations and regularly contact service department for servicing atmospheric boilers, they can last for decades.
- Heat exchanger made of cast eutectic cast iron
- Efficiency more than 90%
- Reinforced thermal insulation
- Electromechanical control panel with boiler thermostat
- Possibility of connecting an indirect heating boiler
- Ability to operate at reduced gas pressure
- Warranty on heat exchanger - 5 years
| vendor code | Power, kWt) | Your price | |
|---|---|---|---|
| Floor-standing atmospheric boiler De Dietrich Dietrigaz DTG X23N | 100004030 | 23.00 kW | RUB 95,017 |
| Floor-standing atmospheric boiler De Dietrich Dietrigaz DTG X30N | 100004031 | 30.00 kW | RUB 103,153 |
| Floor-standing atmospheric boiler De Dietrich Dietrigaz DTG X36N | 100004032 | 36.00 kW | RUB 110,819 |
| Floor-standing atmospheric boiler De Dietrich Dietrigaz DTG X42N | 100004033 | 42.00 kW | RUB 103,346 |
| Floor-standing atmospheric boiler De Dietrich Dietrigaz DTG X48N | 100004034 | 48.00 kW | RUB 127,402 |
| Floor-standing atmospheric boiler De Dietrich DTG Dietrigaz X54N | 100004035 | 54.00 kW | RUB 142,004 |
- Floor-standing atmospheric gas boilers DTG 330 are presented in nine models with power from 126 to 342 kW
- Equipped two-stage burner Eco.NOx with complete pre-mixing of the fuel mixture
- Equipped with an ignition burner with an electronic ignition system and a device for monitoring the presence of a flame in the main burner
- Efficiency 92.5%
- Traction stabilizer with automatic damper supplied separately (DP89)
- Gas pressure switch included
- 3 control panel options - basic (B3), cascade (K3), Diematic-m3*
- The boiler can be supplied with an assembled or disassembled heat exchanger**
* Attention!!! Control panels must be ordered and supplied separately and are not included in the price of the boilers!
** The table shows the price for the supply of a boiler with a heat exchanger in disassembled form.
< 70 мг/кВт·ч) серии DTG 330 Eco.Nox и моделями DTG 330 S cо стандартной горелкой. Котлы оборудованы на выбор одной из 3-х панелей управления: B3, K3 или Diematic-m 3. Все сообщения предусмотрены на русском языке. Теплообменник из эвтектического чугуна обеспечивает повышенный КПД сгорания и работу при низких модулируемых температурах, от 30 или 40°C в подающей линии. Возможность поставки отдельными секциями делает possible installation and in boiler rooms with difficult access. 13 mbar injectors are included in the scope of delivery.
- Increased average annual efficiency
- Low level noise
- The warranty period for equipment is: 2 years for all equipment, from the date of commissioning, if no more than 6 months have passed since the date of purchase of the equipment. If the date of commissioning of the equipment cannot be determined, the warranty period is calculated from the date of sale.
| vendor code | Power, kWt) | Your price | |
|---|---|---|---|
| Gas floor-standing atmospheric boiler DTG 330 8S | 100007275 | 98.00 kW - 140.00 kW | RUB 687,950 |
| Gas floor-standing atmospheric boiler DTG 330 9S | 100007276 | 112.00 kW - 160.00 kW | RUR 742,549 |
| Gas floor-standing atmospheric boiler DTG 330 10S | 100007277 | 126.00 kW - 180.00 kW | RUB 832,962 |
| Gas floor-standing atmospheric boiler DTG 330 11S | 100007278 | 140.00 kW - 200.00 kW | RUR 611,958 |
| Gas floor-standing atmospheric boiler DTG 330 12S | 100007279 | 154.00 kW - 220.00 kW | RUB 1,013,560 |
| Gas floor-standing atmospheric boiler DTG 330 14S | 100007280 | 182.00 kW - 260.00 kW | RUB 1,080,148 |
| Gas floor-standing atmospheric boiler DTG 330 16S | 100007281 | 210.00 kW - 300.00 kW | RUB 1,201,259 |
| Gas floor-standing atmospheric boiler DTG 330 18S | 100007282 | 238.00 kW - 340.00 kW | RUB 1,285,869 |
| Gas floor-standing atmospheric boiler DTG 330 20S | 100007283 | 266.00 kW - 380.00 kW | RUB 1,393,076 |
The DTG series is represented by low-temperature boilers with an atmospheric two-stage pre-mix burner with low NOx emissions (NOx< 70 мг/кВт·ч) серии DTG 230 Eco.Nox и моделями DTG 230 S cо стандартной горелкой. Котлы оборудованы на выбор одной из 3-х панелей управления: B3, K3 или Diematic-m 3. Все сообщения предусмотрены на русском языке. Теплообменник из эвтектического чугуна обеспечивает повышенный КПД сгорания и работу при низких модулируемых температурах, от 30 или 40°C в подающей линии. Возможность поставки отдельными секциями делает возможным монтаж и в котельных с затрудненным доступом. Форсунки на 13 мбар входят в комплект поставки.
- Increased average annual efficiency
- Optimal combustion cleanliness and low emissions
- Low noise level
- Operation at low modulated temperatures
- Convenient installation (in new or reconstructed boiler houses)
- The warranty period for equipment is: 2 years for all equipment, from the date of commissioning, if no more than 6 months have passed since the date of purchase of the equipment. If the date of commissioning of the equipment cannot be determined, the warranty period is calculated from the date of sale.
| vendor code | Power, kWt) | Your price | |
|---|---|---|---|
| Gas floor-standing atmospheric boiler DTG 230 7S | 100007736 | 27.00 kW - 54.00 kW | RUB 244,391 |
| Gas floor-standing atmospheric boiler DTG 230 9S | 100007738 | 35.00 kW - 72.00 kW | RUB 292,713 |
| Gas floor-standing atmospheric boiler DTG 230 11S | 100007741 | 45.00 kW - 90.00 kW | RUB 343,173 |
| Gas floor-standing atmospheric boiler DTG 230 12S | 100007742 | 54.00 kW - 99.00 kW | RUB 366,372 |
| Gas floor-standing atmospheric boiler DTG 230 13S | 100007743 | 54.00 kW - 108.00 kW | RUB 391,281 |
| Gas floor-standing atmospheric boiler DTG 230 14S | 100007744 | 54.00 kW - 117.00 kW | RUB 426,026 |
Features of Vaillant floor standing boilers include:
Gas heating boiler with atmospheric injection burner, without fan, for operating mode with varying boiler temperature.
- Cast iron sectional heat exchanger block.
- Pro-E system - plug-in electrical connection system.
- High efficiency - up to 92% on average during the heating period.
- Low NOx emissions - less than 150 mg/kWh.
- Electronic system diagnostics, configuration and troubleshooting.
- Possibility of using both natural and liquefied gas (with appropriate reconfiguration).
- Built-in electronic boiler temperature sensor.
- Electronic sensor traction overturning.
- Ignition and flame control system.
- Single-stage burner with heat-dissipating ceramic rods and automatic gas pressure regulator.
- Control panel with built-in regulators for flow temperature and water heater temperature.
- Connection of any Vaillant analogue controllers (terminals 7-8-9).
- Height-adjustable boiler legs.
- Safety temperature limiter.
- Space for installing VRC 410s and VRC 420s regulators.
Guarantee
Gas Protherm boilers manufactured according to innovative technologies boilers have high efficiency and successfully solve the heating problem large areas. The boilers operate on solid and liquid fuels and are characterized by quiet operation, as well as a pleasant design and environmental friendliness. different power for heating rooms of any size.
Guarantee manufacturer is 2 years from the date of commissioning.
| vendor code | Power, kWt) | Your price | |
|---|---|---|---|
| Bear 40 KLOM | 0010005726 (10005726) | 35.00 kW - 35.00 kW | RUB 89,810 |
| Bear 30 KLOM | 10005725 | 26.00 kW | RUB 75,942 |
| Bear 50 KLOM | 10005727 | 44.00 kW | RUB 102,341 |
| Bear 50 KLZ | 10005751 | 17.00 kW - 44.50 kW | RUB 196,118 |
| Grizzly 100KLO | 100KLOR12 | 99.00 kW - 99.00 kW | RUB 249,199 |
| Grizzly 130KLO | 130KLOR12 | 130.00 kW - 130.00 kW | RUB 313,102 |
| Grizzly 150KLO | 150KLOR12 | 150.00 kW - 150.00 kW | RUB 343,046 |
| Bear 20 TLO | 20TLOR15 | 18.00 kW | RUB 81,462 |
| Bear 30 TLO | 30TLOR15 | 27.00 kW | RUB 91,654 |
| Grizzly 65KLO 65kW | 65KLOR12 | 65.00 kW - 65.00 kW | RUB 184,015 |
| Grizzly 85KLO | 85KLOR12 | 85.00 kW - 85.00 kW | RUB 216,855 |
Quality control of all KENTATSU FURST KOBOLD series equipment occurs during the production process and meets all standards. The boilers are very easy to set up and control thanks to a convenient and easy-to-use panel interface with boiler operation regulators. Even people who have not previously come into contact with this equipment will quickly understand all the functions of the boiler.
ADVANTAGES OF COBALT FLOOR FLOOR GAS BOILERS:
Possibility of installing weather-compensating automation of different brands.
Ionized flame.
Cast iron heat exchanger.
Amin Gas technology, which reduces hydraulic resistance.
FEATURES OF KENTATSU COMPANY:
Uninterrupted operation at reduced gas inlet pressure.
Multi-level security system.
Electronic ignition.
Uniform heating.
Guarantee: If you have a correctly completed warranty card, the manufacturer provides a warranty on the product for 24 months from the date of commissioning.
| vendor code | Power, kWt) | Your price | |
|---|---|---|---|
| Kobold-03 | Kobold-03 | 20.00 kW | RUR 66,588 |
| Kobold-04 | Kobold-04 | 30.00 kW | RUR 72,086 |
| Kobold-05 | Kobold-05 | 39.90 kW | RUB 76,363 |
| Kobold-06 | Kobold-06 | 49.80 kW | RUB 86,137 |
There are two common types of gas boilers - with an atmospheric burner and with a forced-air burner. Before choosing a boiler, it is important to decide what kind of burner it will have. We study the principle of operation, features of the device, advantages and disadvantages. What to prefer and why?
- 1 of 1
On the picture:
The important difference between gas boilers from each other is not appearance device, but in the gas burner device.
Atmospheric gas burner
Air supply is the same as in a conventional gas stove. They are also called “gas burner for a boiler with an open combustion chamber.” The burner in these devices is a tube with holes in the walls for gas outlet. The gas, mixing with the air in the room, is ignited by an electric fuse or piezoelectric element.
It differs from the gas burner in shape. Atmospheric gas burners for heating boilers are not round! The heat exchanger of such boilers is rectangular, and the burner follows this shape. This increases the heating efficiency, and therefore the performance and overall efficiency of the boiler. Atmospheric boilers are considered more simple models. They usually have relatively low power, however, such equipment is quite suitable for most country houses. More powerful units are not equipped with atmospheric burners for safety reasons.
- 1 of 3
On the picture:
The main elements of a boiler with an atmospheric burner (view, internal diagram, burner design).
Blast burner
With a closed combustion chamber. That is, such a gas burner for the boiler does not come into contact with the atmosphere in the boiler room. Air for the gas-air mixture is supplied forcibly - through special air channels using an electric fan - one or more.
- 1 of 3
On the picture:
The main elements of a boiler with a forced-air burner (view, internal diagram, burner design).
Advantages of forced-air burners
- High level of security. Unlike atmospheric burners, in forced-air burners, fuel combustion occurs in a closed, isolated space.
- Higher boiler performance. A boiler with such a burner has a special heat exchanger design. He is
a double-walled barrel turned upside down: a burner torch burns inside it, and coolant circulates between the walls. Thus, heat extraction during gas combustion occurs not only directly above the burner, as in atmospheric analogues, but also to the side of the torch. Due to this, a larger volume of liquid is heated per unit time. - Less sensitive to pressure changes in the gas pipeline. When the fans are running, the pressure drop below the established norm is not as critical here as for atmospheric burners, which immediately go out.
- Easy to replace with a different type of burner. If necessary, the blower burner can be removed and replaced, for example, with a diesel one.
- 1 of 1
On the picture:
Disadvantages of forced-air burners
- Higher electricity consumption. An atmospheric gas burner, which does not require electric fans, consumes significantly less.
- Dependence on electricity. If there is no electricity, the burner does not work and the boiler turns off.
- Increased level noise during operation. It is caused by intense air movement in the ducts and the operation of fans. You can cope with this drawback using a sound-absorbing casing or simply by placing the boiler away from living quarters - in the attic, in the basement, in an extension, etc. In any case, although boiler manufacturers claim that their equipment can be installed anywhere, it still has no place in the bedroom.
Which type should I choose?
Atmospheric - it’s easier to choose an economy option. Among boilers with atmospheric burners, it is easier to find compact but reliable models with low power and two-stage flame settings. Simple atmospheric burners are in any case cheaper than forced-air burners. For a small house this is a good option. But do not forget that among atmospheric burners there are modern models with automatic settings.
Examples of gas boilers with atmospheric burner
Among the blowers there are more advanced and powerful models. As a rule, more expensive and powerful boilers are equipped with forced-air burners. Blowing devices are inferior in terms of noise and energy consumption, but gain somewhat in performance and safety. It is believed that blower burners have a wider range of settings.
Examples of gas boilers with a forced-air burner
Images used in this article:
rusklimat.ru, vaillant.ru, buderus.ru, baxigroup.com, ariston.com
Comment on FB Comment on VK
Also in this section
How has the attitude towards fireplaces in apartments changed in recent years? Is there a fashion for fireplaces? What solutions, colors, materials are most relevant today? Do Dimplex fireplaces have a “zest”?
How to beautifully heat an apartment or cottage without compromising your budget? Is there an alternative to conventional wall-mounted radiators? Alexey Zakharov, a technical specialist at Kermi, tells the story.
How to choose the right drainage systems Wastewater? Is it possible to install equipment without resorting to the services of specialists? Sergei Podolsky, an engineer at SFA, tells the story.
The process of replacing the radiator in new apartment and the old one has a lot in common. First, this should be done by professionals. Secondly, this is the case when it is better not to look for something fundamentally new.
The mass production of the most iconic everyday items was preceded by years, and sometimes decades, of engineering research. We present to you the most useful home inventions in history.
The presence of a fireplace definitely makes the apartment more interesting architectural plan. And if you are only interested in the decorative side of the issue, it is not at all necessary to install a real fireplace.
When should you decorate your living room walls? Best of all - at the stage of dirty construction work. Although you can do this later... But the range of possibilities in different cases will not be the same.
The choice of a heating boiler is largely determined by the ability to organize the supply of fuel on which it will operate. Gas, diesel, solid fuel, electric... Which boiler to choose?
Heating gas boilers have a complex structure. Their design includes combustion chambers, gas burners for boilers, and they are equipped with automation. Double-circuit equipment also includes boilers that heat water for economic needs. Regardless trademark and models gas boiler, its most important part is the burner. The efficiency of the entire operation largely depends on it. heating system home, as well as saving fuel resources.
Classification of gas burners
In a device called a gas burner, the process of mixing the supplied gas and the intake or forced air occurs, followed by combustion of the combustible composition in the combustion chamber. It can operate under conditions of main gas supply, as well as from a cylinder or a special tank. The process itself depends on the characteristics of the burner and the ability to customize it to certain conditions.
Depending on the method of air supply, gas burners are divided into two types:
- atmospheric - an air-gas mixture is obtained due to the natural absorption of air from the surrounding space and mixing it with the supplied gas;
- supercharged, using a fan to force air;
- combined.
In the first case we are talking about boilers with open combustion chambers, and in the second - with closed ones. Also, gas burners for heating boilers have different type power regulation:
- single-stage – the simplest and most affordable;
- two-stage – with two automatically switching operating modes;
- smooth two-stage - with soft flame adjustment between two stages;
- modulated - the most efficient and reliable, with precise and quick adjustment depending on changes temperature regime coolant. It is characterized by high cost.
What to look for when choosing
When purchasing, you should take into account the operating conditions of the heating equipment, the features of its operation and capabilities. Maintenance. The dimensions of the gas burner must be in accordance with the dimensions of the boiler firebox, otherwise, instead of reliability and durability, you will end up with a burnt-out combustion chamber.
Each of the burners has its own characteristics, thanks to which one or another model is chosen for each specific case.
When choosing a gas burner, the following is of particular importance:
- manufacturer;
- characteristics;
- model;
- price;
- equipment compatibility.
Atmospheric burners
This design is a perforated tube profile section, into which gas is supplied. A reduced pressure is created in the tube, due to which air is sucked into it directly from the room where the boiler is located. As a result, a flammable substance is formed that supports the combustion process after ignition of the wick using piezo or electrical element. Such burners have another name - injection.
Atmospheric burners are often called gas burners, intended for heating boilers equipped with open combustion chambers.
The gas burner option under consideration is perfect for homes small area, up to 100 sq. meters. An atmospheric gas burner for a boiler is usually cheaper than its forced-air counterparts. But the cost modern models with automatics is high.
Advantages
Atmospheric burners are widely used among owners of private houses. To their positive characteristics include:
- noiselessness;
- compactness;
- independence of most models from power supply;
- reliability due to design simplicity;
- low operating costs;
- reasonable price.
Flaws
The following can be said about the weaknesses:
- low power;
- low efficiency (no more than 90%);
- sensitivity to frequent changes in pressure of the supplied gas (the need to install additional automation, in particular, a control relay that responds to changes in pressure);
- maintaining high level cleanliness of the room where the boiler is located to avoid clogging the burner with dust.
Pressure surges can lead to burnout of the gas burner nozzle when the gas supply is reduced, or to burnout of the heat exchanger when the flame height is too high.
Pressurized burners
Pressurized or blown burners are designed to work with boilers equipped with a closed combustion chamber. The air here is forced by fans. In this case it appears additional opportunity flexible control of the power of the gas-air mixture flow, in connection with which, there is a real achievement of high efficiency indicators.
Pressurized burners have a more complex design. It is noteworthy that the air in this device It is supplied in parts, but it mixes with gas almost instantly. Gas boilers, in turn, also have their differences from those that work in tandem with atmospheric burners.
Schematically, the boiler is represented by barrels inserted into each other different diameters and depths in such a way that their bottom is at the top. A coolant circulates between the walls, heated by the burner torch from several sides at once - on top and on the sides. This design ensures high performance of the equipment.
A significant difference between forced-air burners and atmospheric burners is that the former are considered not integral part boilers, but with additional equipment that is purchased separately.
Modern pressurized burners are necessarily equipped with automatic equipment, ensuring uninterrupted and reliable operation heating equipment. Externally, they look like a block, inside of which there is the burner itself with a built-in electric fan.
The devices under consideration are divided into:
- vortex, equipped with round outlets. Provide powerful air flow and stable combustion;
- direct-flow, supplying the combustible mixture through outlet openings having different shape(circle, slot, rectangle).
Advantages
It should be rightly noted that forced-air gas burners:
- safe - the combustion process occurs in an isolated space;
- highly productive and highly efficient, thanks to their design features,The efficiency is about 95%;
- insensitive to pressure changes - a decrease in the indicator is compensated by the presence of a fan;
- environmentally friendly;
- have the ability to replace with other types of burners.
Flaws
It is not so easy to find equipment that is free of shortcomings. They are also present in blower burners:
- the presence of noise during operation dictates the need to install the boiler in a separate room;
- dependence on electricity requires the presence of a UPS in the system;
- the volumetric dimensions make it impossible to install heating equipment in small rooms;
- the high cost of the device prevents its use by all categories of consumers.
Combination burners
They are produced for combined heating boilers that can operate on both gas and liquid fuel (fuel oil, diesel fuel). Such devices do not require replacement when switching from one combustible mixture to another. But the switching process itself is quite complex and requires the presence of a professional.
The burners in question are fully automated, which minimizes the human factor. They have functions for controlling flame power, combustion mode and other equally useful processes.
Combination burners have not gained popularity among homeowners due to complex design and high price, combined with low efficiency.
Proper care is the key to long-term operation
During operation, the gas burner needs timely cleaning of soot. It appears during operation and, if accumulated in large quantities, can lead to sudden ignition. A scheduled inspection of the equipment and regular maintenance of the heating device and gas burner will help you avoid troubles.
At self-cleaning It is recommended that you read the attached instructions included in the package. But a more prudent decision would be to contact specialists who have experience in this field. In this case, the work will go much faster and better, with the least amount of dirt.
While conducting home heating, every owner is faced with the problem of choosing the right boiler. Every day new boiler options appear on the market, which are divided into certain groups, we will talk about them in the article. You will learn about which boiler is better, atmospheric or turbocharged, as well as the principles of operation various types boilers, their advantages and disadvantages.
It's worth starting with brief analysis the main types of boilers in order to understand the system of their operation and the appropriateness of installation in a particular home.
Wall and floor
It is this specification that determines not only the mounting location of the boiler, but also its shape, weight and capabilities.
- Floor boiler. It differs in that its weight can reach 100 kg, installation requires a lot of space (pipe outlet, installation of a pump, taps) and the installation itself is quite complex, and therefore more expensive. In addition to installation difficulties, the problem is that most floor-standing boilers do not have the additional “boiler” function, that is, they do not heat up the water for supply to the mixers, they make quite a lot of noise during operation, and the chimney requires regular cleaning not only of soot, but also and from various garbage. Considering the positive aspects, it is worth saying that floor standing boilers many times more powerful than wall-mounted ones, and more durable. Therefore, if you need a powerful boiler without unnecessary electronics, then it is better to choose a floor-standing option.
- Wall-mounted boiler. The heater has smaller dimensions than a floor heater and weighs about 50 kg. Such units are mainly double-circuit, that is, they replace your gas water heater or boiler. The wall-mounted version is easier to install and takes up much less space, and the ability to vent “exhausts” not only through a chimney, but also directly through the wall allows you to install the unit in almost any convenient location, complying with the requirements.
Wall-mounted and floor-standing boilers can be either single-circuit or double-circuit. The location of the unit does not in any way affect the number of circuits.
However, not everything is so smooth. The presence of a large amount of electronics makes such a boiler dependent on it. That is, if something burns out in the boiler, you will be left without heating. As a rule, such boilers cost several times more, and their repair can amount to up to 1/3 of the cost of a new unit. It is advisable to install a wall heater in small apartments or houses where there is no extra space for installing a heavy floor-standing boiler and related parts.
Single-circuit and double-circuit
Single-circuit and double-circuit boilers differ in the tasks they can perform. So, for example, a double-circuit boiler (following the name) performs two tasks: it heats the room and heats water to be supplied to the mixer.
Single-circuit performs only one standard function - heating.
Double-circuit boiler, in addition to the standard function, makes it possible to obtain hot water for various needs, but it cannot be called a full-fledged “boiler”. The fact is that the pressure of water that passes through the unit must be very strong for the system to work. Therefore, such a boiler needs to be installed near the bathroom and kitchen.
A single-circuit boiler does not give you the additional function of a boiler, however, it costs several times less. The operating system of such a unit is simple, which means that if it breaks down it will be easier to repair. In addition to a single-circuit boiler, you can install indirect heating boiler, which can work on various fuels(gas, electricity, solid fuel), be floor or wall mounted.
It works as follows: a system is connected to the boiler central heating(on a small circle); A flask with water is installed inside the unit, through which a coil passes. Hot water, passing through the coil, heats the water inside the boiler, and it can be used for personal purposes. When the heating is turned off, the taps at the inlet and outlet of the central heating pipes are closed, and the water in the boiler is heated using gas, electricity or solid fuel.
For more information on the structure and difference between single-circuit and double-circuit boilers, watch the video
Types of double-circuit heating systems
Atmospheric
An atmospheric double-circuit gas boiler is distinguished by an air intake system. Air enters such a heater from the room (boiler open type), which means it needs to be installed only in the boiler room.
The burner is a set of small diameter nozzles through which gas escapes under pressure. Its effectiveness is due to the fact that during the combustion process the necessary amount of oxygen enters the chamber, which intensifies the flame. Consequently, such a boiler spends less fuel, heating the water in the system to the required temperature.
A gas boiler with an atmospheric burner, like any other, requires smoke exhaust through an installed chimney lined with stainless steel.
Turbocharged
A turbocharged double-circuit gas boiler is distinguished by the fact that it has closed chamber combustion. Air is supplied to the unit by a fan through a separate coaxial pipe. This heater can be installed in any place convenient for you. For safety reasons, it does not require a special room.
A specific feature of these boilers is the copper lining of the combustion chamber, which is why the power of such heaters is no more than 35 kW. However, this rule applies only to wall-mounted options; floor-mounted ones have a chamber lining made of cast iron, so they are not limited to low power. 
It should be noted that for such boilers, not only straight chimneys are suitable, but also those located at an angle, two-channel and with insertion into a common chimney channel.
Condensation
An interesting option for boilers that use all the heat produced during gas combustion. The boiler works in such a way that the smoke coming out of it is cooled in an additional water tank, giving off the lion's share of the heat. This saves about 10% of the energy that goes into heating water in a separate tank.
It's also worth noting that the water tank that cools the smoke serves as a small boiler. The dual-circuit system allows water heated in the tank to be discharged to the mixers.
Condensing boilers are available in open and closed type, can be equipped with additional electronics that monitor the temperature in the combustion chamber, system (pipes), and can reduce or increase power while maintaining the set temperature.
Atmospheric gas wall-mounted boiler: operating principle of heating equipment
Now we will describe in detail the principle of operation of a gas boiler with an atmospheric burner.
The gas burner heats the cast iron, which acts as a heat exchanger. The design of such a burner includes:
- nozzle;
- burner head;
- ejection tube;
- air regulator.
The picture shows a diagram of an atmospheric burner and the principle of air intake. 
Air is mixed with gas before it is supplied to the nozzles. Mixing type burners can be:
- with full mixing;
- with partial mixing.
If the burner operates with partial mixing, then part of the gas is supplied together with air, and part is supplied directly. In the second case, all the gas is mixed with oxygen and enters the combustion chamber.
Attention!Models with full gas mixing are not supplied to the CIS countries.
The double-circuit atmospheric wall-mounted gas boiler uses the same valve system as other double-circuit boilers. That is, during heating of running water (output to mixers), the coolant will be directed to the heat exchanger, and not to the heating system.
Let's talk about the advantages and disadvantages of boilers with atmospheric gas burners. The advantages include the following:
An atmospheric boiler has its disadvantages, namely:
- since atmospheric burners require an open air supply (from the room), such a gas boiler is less safe (fire or carbon monoxide may escape);
- for the boiler you need to allocate a special room (boiler room), which is a great “luxury” for small apartments.
Criteria for choosing an atmospheric gas boiler for the wall: what characteristics should you pay attention to
Atmospheric gas boilers vary in terms of power, dimensions, weight and efficiency.
Power
In previous sections, we indicated the maximum power of wall-mounted boilers - 36 kW, which is determined by the design of the suspended equipment. To choose the optimal boiler for power, you need to evaluate the square footage of the entire house or apartment, and also take into account heat losses (windows, uninsulated walls, floors). In the description of each boiler there is a quadrature that it heats, but it is worth understanding that the description does not take into account heat loss.
Therefore, when buying a boiler, you need to choose one that can heat an area 25% larger than you have.
For example, the area of your house is 120 m2, but you need to buy a boiler that is designed for 150 m2. m.
You can use another measurement system, according to which per 10 sq. m requires 1 kW of power. Following this calculation, a wall-mounted boiler with maximum power can heat up to 360 sq. m of living space. 
If you have difficulties choosing the boiler power, then contact specialists who will carry out thermal calculations, or get advice from equipment sellers.
Weight and dimensions
Almost all wall-mounted boilers have standard dimensions– 700 x 400 x 250 mm, and their weight varies from 25 to 50 kg. Weight and dimensions depend not only on power, but also on additional elements, such as a touch panel, temperature sensors, an additional chamber for heating running water, and so on. It makes no sense to focus on choosing an atmospheric boiler based on weight and dimensions, since most boilers, regardless of power and efficiency, have standard sizes.
On a note!More advanced versions of wall-mounted boilers will have less weight and dimensions.
Gas boiler efficiency
First you need to find out what the efficiency of an atmospheric boiler is. Many knowledgeable people do not pay attention to these letters, but look only at the power. This is fundamentally wrong, since the efficiency of the boiler shows how much generated energy will be used to heat the water, and how much will evaporate. That is, efficiency is useful energy that is used for its intended purpose.
The efficiency of atmospheric gas boilers varies between 80-90%, that is, 10-20% of the energy will “heat” the street.
Efficiency directly depends on the boiler model and its cost. More expensive modern boilers regulate the gas supply in such a way as to obtain maximum effect.
It is worth noting that the efficiency of turbocharged boilers is 90-97%, and that of condensing boilers is above 100%. The whole difference is that the “exhausts” of an atmospheric boiler have an average temperature of 110 °C, a turbocharged one - 55 °C, and a condensing boiler - about 30 °C. 
Atmospheric gas double-circuit wall-mounted boilers: popular manufacturers (Baxi, Bosh, Vaillant, Viessmann, Gazlux and others)
What every buyer has difficulty with is choosing a manufacturer. You always want to buy a “cheaper” boiler that will work great and last a long time. We bring to your attention wall-mounted boilers from the most popular manufacturers.
Italian company Baxi offers wall-mounted gas boilers that operate on atmospheric burners. Let's start with the advantages of branded boilers:
- The units meet all environmental and fire safety requirements.
- The boilers have advanced electronic stuffing, which regulates the flame power and maintains a stable temperature in the room.
- The boiler design is small in size and light in weight; installation of the boiler is considered simple.
- Depending on the model, the boiler may contain electronic filling that checks the temperature in the room with the set one and automatically turns the heating on or off.
Now let's talk about the disadvantages of the manufacturer. It’s worth starting with the fact that boilers from Baxi are prohibitively expensive compared to others famous brands. Accordingly, repairs and replacement of parts will also cost a pretty penny. 
After purchasing a boiler, it must be installed correctly. This is where the next disadvantage appears - the boiler must be installed exclusively by professionals, otherwise it will not work properly or even explode.
From the above we can conclude that boilers from Baxi are suitable for wealthy people who are willing to pay for a quality product and proper installation.
Next on the list is a wall-mounted atmospheric gas boiler, popular in Russia. Navien Ace from Korean manufacturers.
Let's move straight to strong side equipment:
- The boiler works perfectly at low gas pressure (4-16 mbar) and water (0.1 bar).
- The boiler is not affected by voltage surges; it functions perfectly in the range of 155-280 volts.
- The unit is equipped with protection against freezing of water in the system.
- Relatively low price.
The disadvantages include the operation of automation, which in some cases malfunctions, and minor engineering miscalculations.
Germany offers us gas wall-mounted atmospheric boilers from Vaillant, the pros and cons of which we will discuss below. Vailant has been supplying its products to the market for more than 130 years, which is a sign good quality and durability. 
Advantages of Vaillant boilers:
- reliability and long service life of the models (the manufacturer provides a 15-year warranty);
- high efficiency of devices, which is achieved through proper assembly of the structure;
- boilers are equipped with all necessary control systems;
- built-in pressure regulator allows the boiler to operate stably even at low gas pressure;
- in the event of a breakdown, the boiler notifies you of the details of the problem.
Each company has its own weak sides, which are reflected in the products. Boilers from “Vailant” will not work in the absence of electricity, which is a big problem, since if there is a breakdown in the electrical network, you will immediately be without electricity and without heating.
It is also worth considering a feature of the boilers - the absence of an expansion tank. If you experience supply interruptions cold water, then you will have to additionally install a water tank.
Attention!Poor water quality can lead to premature failure of the heat exchanger, so a filter should be installed.
Next comes another German company Viessmann, which offers fairly high-quality products at average prices. 
Positive sides:
- the units implement advanced technologies and have all the necessary sensors and temperature control systems;
- quiet operation of the equipment;
- high energy efficiency;
- ease of operation;
- easy installation of the device.
Despite all the positive aspects, the Viessmann boiler has a large number of cons. Almost all owners of boilers from this company complain about the excessive “gluttony” of the units, when it takes more than 150 cubic meters of gas to heat 50-60 square meters.
It is worth saying that the product is made in such a way that as soon as the warranty period expires, problems with the electronics begin. And if the boiler was not installed by a professional, then it may fail during the warranty period. Wherein service center does not always provide repairs under warranty, so we do not recommend giving preference to this company.
Another Italian brand Gazlux offers us its products. Positive aspects of branded boilers:
Let's move on to the cons:
- Although Gazlux is an Italian company, its products are manufactured in China, which seriously affects the quality;
- a warranty period of 2 years does not provide much confidence;
- the batteries run out very quickly, this is noted by all users of Gazlux boilers;
- the electronics may malfunction, causing the boiler to turn off, react incorrectly to the set temperature, or overheat (most often due to improper installation).
In general, when buying boilers from Gazlux, you get an average quality boiler at an adequate price. If you are counting on a small amount, then such equipment will come in handy.
Famous German company Bosch also produces wall-mounted atmospheric boilers, which deserve attention.
Product advantages:
- high quality materials that last a long time;
- quiet operation of the boiler even at high power;
- low price;
- implementation of all advanced technologies.
Disadvantages of the product:
- many components are manufactured by third parties;
- small model range;
- small number of service centers.
We can conclude that Bosch boilers are a good “anti-crisis” option in this market, having a low price and good practicality. However, it is worth remembering that the products are manufactured far outside Germany, which greatly affects the quality.
You can watch an overview of various Bosch boilers with a detailed examination of the models in the video
We introduced you to the types and features of all traditional gas boilers that are used in apartments and private houses. Choose products based on several criteria at once and try not to take the word of the interested sellers.