Boiler burner type: which is better? Atmospheric gas boilers Double-circuit floor-mounted atmospheric gas boiler

An atmospheric boiler is a heating equipment, the feature of which is a burner built into the body. This device is characterized by low noise, affordable cost and high power (up to 150 kW). GC "EKVOLS" supplies atmospheric gas boilers floor-mounted, among which there is sure to be a suitable option for heating a room of any size.

Range of boiler equipment with atmospheric burners

The models we present are very diverse. Thanks to this, you have the opportunity to purchase an atmospheric gas boiler for heating as a summer house or country house, and a large facility with a total area of up to 29,000 m². The heat exchanger in such equipment can be cast iron or steel. There are floor-standing atmospheric boilers that are volatile (require connection to the electrical network) and non-volatile (do not use electric current). Also model range divided into single-circuit and dual-circuit installations. The first type works only for heating. A gas boiler with a dual-circuit atmospheric burner is ideal for those who want to organize not only efficient heating in their home, but also an autonomous supply hot water.

We offer to buy floor-standing gas boilers (atmospheric) with delivery in the Tavago online store.
Price for floor-standing gas boilers (atmospheric) from 2220 rubles.
Read instructions and reviews about Floor-standing gas boilers (atmospheric).

IN modern houses and apartments, almost one hundred percent present central heating and hot water supply. However, in some cases the highways run too far from the building, and if we talk about suburban buildings, then this is even more likely. But every person, without exception, wants to live a comfortable life, so buying a gas boiler is the necessary minimum, without which there is no need to talk about comfort.
Our website presents a large assortment of heating equipment, and in this particular category we offer atmospheric gas boilers. These boilers are considered one of the most economical options for organizing heating.

Atmospheric gas boilers are a one-piece design with built-in burner. Low noise levels and the release of waste materials through natural draft make an atmospheric gas boiler a welcome guest in every home.

The attractiveness of such a boiler lies in its low operating costs and a wide range of capabilities with unstable fuel pressure in the pipeline.

Most models of atmospheric boilers are equipped with one circuit, i.e. designed to heat the room. To connect the hot water supply circuit (DHW), you need to purchase an additional boiler indirect heating, or a combined boiler with an electric heating element. Additionally, equipment such as an expansion tank, circulation pump, etc. is purchased.

A double-circuit atmospheric gas heating boiler acts as a kind of mini-boiler room because By default it is equipped with a boiler and piping.

In terms of functionality, atmospheric gas boilers are in no way inferior to forced-air ones. The use of atmospheric boilers is rational and economically justified, since they are fully adapted to the domestic gas supply system, have high power and are durable (up to 50 years of uninterrupted operation).

It is important that the installation of atmospheric heating boilers is carried out by qualified workers, taking into account all design and estimate standards, only then will the equipment have maximum efficiency and serve you for as long as stated in the production documentation.

You can buy double- and single-circuit atmospheric gas boilers at minimal prices in Moscow in the Tavago online store. You can get comprehensive advice on the selection of this equipment by calling us at the phone number indicated in the contacts, or during a personal meeting at one of our physical branches.

When dealing with home heating, every owner was 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 option is easier to install and takes up much less space, and the ability to remove “exhausts” not only through a chimney, but also directly through the wall allows you to install the unit in almost any convenient place, complying with the requirements.

Note!
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-mounted 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 run on various fuels (gas, electricity, solid fuel), be floor or wall mounted.

It works as follows: a central heating system is connected to the boiler (in 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, required quantity oxygen, 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 installed chimney, lined with stainless steel.

Turbocharged

A turbocharged double-circuit gas boiler is distinguished by the fact that it has a closed combustion chamber. 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 only applies to wall options, floor-mounted ones have a cast iron chamber lining, so they are not limited by 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 a cut into the 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 there are 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 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 everything 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 touch panel, temperature sensors, additional camera 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.

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 They don’t 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 components that regulate the flame power and maintain 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 the Navien Ace wall-mounted atmospheric gas boiler from Korean manufacturers, popular in Russia.
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 over 130 years, which is a sign of 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 due to correct assembly designs;
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 weaknesses, which are reflected in the products. Boilers from Vailant will not work in the absence of electricity, which is big problem, because if there is a breakdown in the electrical network, you will immediately sit 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 aspects:

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 disadvantages. 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 warranty period. At the same time, the 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.

Gas heating boilers are popular equipment used for heating country dachas, cottages, townhouses, apartments. Such units have been in use for many years and provide good performance. It should also be noted that gas is the most accessible energy resource. Therefore, boilers operating on this fuel are in constant demand.

What type of gas boiler to choose

Wall or floor

Depending on the method of placement, boilers can be wall-mounted or floor-mounted. Mounted gas heating boilers are lightweight and compact in size. They are mounted on the wall using a special bracket included in the package. Such units are installed in small houses and apartments that do not have space for large equipment. Floor-standing models are highly powerful and are used for heating large areas. They are equipped cast iron heat exchanger and are considered the most reliable.

This is important to know: the part of the wall located behind the heating unit is protected with fireproof material for safety reasons.

Wall-hung gas boilers save space indoors and are often installed in the kitchen

Single or double circuit

The number of heating circuits is an important parameter that cannot be ignored. Single-circuit boilers are used for space heating. To provide hot water supply, an indirect heating boiler is connected to the unit. Externally, such a device resembles metal barrel. So that residents do not limit themselves in the consumption of hot water, the container must have a large volume. Double-circuit gas heating boilers are more functional because they are equipped with an additional heat exchanger. Such units heat rooms and provide hot water.

Scheme of operation of a single-circuit boiler with an indirect heating boiler

Regular or condensing

In conventional units, the energy generated during the combustion process is not fully used. Some of the heat escapes along with water vapor into the atmosphere. The operating principle of condensation-type gas heating boilers is completely different. It lies in the fact that when cooled, steam turns into liquid, releasing a certain amount of heat.

The diagram shows the operating principle of a condensing boiler

Condensing gas heating boilers have many advantages:

noiselessness – ensures comfortable operation of the equipment;
environmental friendliness – volume of waste harmful substances significantly reduced, so there is almost no damage to the environment;
high efficiency - the units have a well-thought-out fuel combustion system. If we compare gas heating boilers, we can draw an unambiguous conclusion: condensing units save about 20% of energy resources;
attractive design.

Turbocharged or naturally aspirated

The method of releasing combustion products into the atmosphere can be natural or forced. In units with natural draft, harmful substances are removed through the chimney due to the flow of air from the street. Gas heating boilers without a chimney (turbocharged) operate on a different principle: combustion products are forced out through a coaxial pipe.

Coaxial chimney is a single structure consisting of pipes of different diameters

It is worth paying attention: if the house has a chimney, the best option will be the installation of an atmospheric boiler. If there is no chimney or the apartment is heated, you should opt for a turbocharged unit.

With one or two heat exchangers

The heat exchanger is one of the main structural parts of gas boilers. Units with a bithermic heat exchanger are reliable and cheap due to their simple design. But there is one drawback: sensitivity to water quality. It manifests itself in the fact that the part quickly becomes clogged with scale. Boilers with separate heat exchangers are less sensitive to water quality. The principle of their operation is as follows: one heat exchanger heats water for transportation to radiators, and the second for use in bathrooms.

The bithermal heat exchanger combines two functions - space heating and hot water supply

With manual or automatic control

There are two types of boilers based on the type of ignition. Equipment with piezo ignition is turned on manually, while equipment with electronic ignition starts automatically. To ensure safety and regular monitoring, the units are equipped with additional devices.

The daily programmer “Salus” is equipped with a backlit liquid crystal display that displays the necessary information

To create optimal conditions In operation, automation is used for gas heating boilers. Devices that control the operation of units are divided into two types:

Non-volatile - they respond to changes in coolant temperature.
Volatile - the operating principle of the devices is to open/close the valve after receiving a signal from the temperature sensor.

Automatic devices create a comfortable temperature in the premises during the presence of residents and save maximum heat when no one is at home. The most common devices include:

room thermostats - the principle of their operation is simple: after the temperature in the room reaches a certain value, the operation of the heating unit stops;
daily programmers - with their help the operation of boilers is programmed for 24 hours;
weekly programmers – the air temperature in the rooms changes in accordance with given parameters for different periods of time.

On natural or liquefied gas

If the house is connected to the central highway, natural gas is used for heating the premises. But sometimes, connecting to a gas pipeline is impossible for a number of reasons: distance from the gas pipeline, the need to install a hydraulic fracturing system, a small number of consumers. How then? We need to look for other options. This refers to the use of units operating on liquefied gas. If houses in a holiday village or village are not connected to the central highway, this good way out from the situation.

The diagram clearly shows how a group of cylinders is used to provide continuous heating

Heating boilers using liquefied gas have only one fundamental design difference: the nozzles are designed for more pressure. A mixture of propane and butane is contained in a cylinder under pressure. In terms of storage and transportation, this is practical: the cylinders are easy to move and do not take up much space. Propane-butane mixtures are widely used because they have a low emission of harmful substances. Heating a house using liquefied gas can be done in two ways:

Using a group of cylinders - this solution allows you to increase the period for replacing containers with the mixture. Continuity of boiler operation is ensured by special adapters. A standard 50 liter cylinder lasts for 2-3 days.
Application of gas tanks – ideal option, since refueling is carried out much less frequently. Large-volume liquefied gas storage facilities (500 liters) provide heating for the house for 15-20 days.

Calculation of heating boiler power

When choosing a gas boiler, do not forget about power. The efficiency of autonomous heating system. Carry out necessary calculations not difficult, because heating 10 m2 requires 1 kW of power. A good example: for a home with an area of 120 m2, a 12 kW boiler is suitable. Such a simple calculation has a significant drawback, because modern construction technologies, climatic features of the region.

The calculation using this formula is suitable for small insulated houses (attic, walls, double-glazed windows) with low ceilings. We have few such dwellings, so we need to take into account the quality of insulation of the house, heat loss in winter period, climate. Also, do not forget about unforeseen situations: decreased pressure natural gas and severe cold. Therefore, when calculating power, it is necessary to add 20% to the resulting figure.

When calculating power, you need to take into account the fact that a lot of heat escapes through uninsulated windows, walls, and attic

TOP 5 leading brands

Wolf

Wolf is a leading German manufacturer offering customers the best gas heating boilers. The products of this brand are equipped with control systems that allow you to select optimal operating modes. Gas boilers are tested and certified in accordance with European directives. Wolf CGB boilers are in stable demand. They operate on natural/liquefied gas and are used for efficient heating and hot water supply to large country houses, buildings for several families.

Wolf CGB condensing boilers are equipped with a closed combustion chamber. During operation of the units, air is supplied from the room or from the atmosphere

Baxi

"Baxi" - an Italian company produces units that combine excellent performance and functionality. For example, “Baxi MAIN Four” is the fourth generation of wall-mounted units with a display, electronic ignition, and bithermic heat exchanger. "Baxi Nuvola Duo-tec" - single-circuit wall-mounted boilers with a modulating burner and a heat exchanger made of stainless steel. They are equipped with an energy-saving circulation pump and an automatic air vent. The manufacturer has introduced an innovative control system, thanks to which the consumer can adjust the operation of the boiler to the type and quality of gas.

Gas boilers "Baxi MAIN Four" are installed in confined spaces and have elegant design

Vaillant

"Vaillant" - a model line from the German trademark includes conventional, condensing, single-circuit units and gas heating boilers with water heaters. Equipment from a well-known company has a high efficiency and is equipped with built-in circulation pumps. Prominent representatives of the model line are the Vaillant turboTEC PLUS VU boilers. They are equipped with a closed expansion tank, automatic air vent, safety valve, primary copper heat exchanger and chromium-nickel steel burner.

The wall-mounted boiler “Vaillant turboTEC PLUS VU” is equipped with an LCD display with large buttons and backlight

Dakon

“Dakon” - with the help of gas heating boilers from a Czech manufacturer, you can economically solve problems with heating your home and providing hot water. For example, DAKON GL Eko cast iron gas heating boilers equipped with an atmospheric ejection burner, Honeywell electronics, and a draft breaker are in good demand. They are equipped with control units, to the outputs of which they are connected additional elements: room thermostats, antifreeze devices, outdoor sensors.

Wall-mounted gas boilers “DAKON” are equipped with a bithermic heat exchanger and a system against limestone accumulation

Navien

“Navien” are Korean-made units with excellent technical performance. They are used for a long period, operate stably at low pressure, and have minimal dimensions. Double-circuit wall-mounted boilers “Navien Ace ATMO” with a natural system for removing combustion products are in great demand. Such units are equipped with an automatic system that turns on the pump when the temperature drops below 10 degrees. The developers took into account the possibility of operating the device under conditions of frequent voltage surges. Therefore, the boilers are equipped with a special chip that is triggered when the voltage in the network changes.

"Navien Ace ATMO" - in demand heating equipment, equipped with separate heat exchangers

Each buyer can independently select a unit that meets individual needs and financial capabilities. But the installation of gas heating boilers must be trusted by professionals, because the safety of operation of the device depends on the correctness of actions.

Video: how to choose the right gas boiler

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

In the photo:

The important difference between gas boilers 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, the walls of which have holes for the gas to escape. 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 simpler 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

In the photo:

The main elements of a boiler with an atmospheric burner (view, diagram internal structure, 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

In the photo:

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. It represents
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

In the photo:

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 noise level 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 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 level and energy consumption, but gain somewhat in terms of 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

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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 dirty stage 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?