Which gas boiler for an apartment is better. How to choose a gas boiler for home? The best floor gas boilers in terms of price - quality ratio

The floor boiler is designed to operate on natural or liquefied (requires conversion) gas. High power allows you to heat not only residential premises, but also production areas up to 320 m2. To supply hot water, it is possible to connect a boiler.

A 5-section cast-iron heat exchanger will ensure reliability and increase the service life (due to the fact that cast iron is 2 times less susceptible to corrosion than steel). For stable operation from the network, a voltage stabilizer is required.

Since the Vaillant atmoVIT VK INT 324 1-5 boiler has an open combustion chamber, it is necessary to install a vertical chimney for the natural removal of combustion products. The control system with a display makes it easy to set up and control the operation of the boiler.

Pros:

• Possibility of connection of a boiler.
• Gas control system.
• Automatic diagnostics.
• Reliable operation.

Minuses:

• The expansion tank is not included.
• Heavy weight (99.9 kg).

1 Viessmann Vitogas 100-F GS1D871

The risk of unjustified overpayment is primarily manifested at the time of purchase of equipment. It is better to buy a boiler with some margin from the required calculated values ​​​​of the parameters of the heating system. What are these parameters and which gas boiler to choose?

Deciding…

Device functionality

When choosing a, it is necessary to determine its functionality: it will be a single-circuit boiler or a double-circuit one.

A single-circuit gas boiler provides heating of the coolant transported to the heating system by a circulation pump. To provide hot water supply at the facility, such a boiler is paired with an indirect heating storage boiler, which stores a supply of water to ensure the "uninterrupted" hot water supply system.

A double-circuit boiler uses two independent circuits: one for the heating system, the second for heating sanitary water in flow mode, the performance of which is sufficient to provide one or two points of water intake (for example, kitchen and bathroom).

Mounting option

Gas boilers are either wall-mounted or floor-mounted. Each of them has a modern ergonomic design that allows you to organically fit into the interior of the kitchen or other premises.

The wall-mounted option is the best solution for an apartment or residential building. The ability of such units to occupy a minimum of space on the wall, organically fitting into kitchen set or “hiding” in a corner of the attic or basement, speaks only in their favor. After all, the performance parameters are impressive.

Mostly such devices are double-circuit: designed both for "supplying" heat to the heating system, and for providing hot water supply to the facility (DHW).

Floor construction - differs in "demanding" to the seat, they have, mainly, higher rates and are better able to heat large objects.

Outdoor units can be equipped (in addition to atmospheric) with a replaceable pressurized gas or liquid fuel burner, which simply expands the possibilities of using a heat generator.

The principle of operation and features of the device

According to the principle of gas combustion, you can choose:

• boilers with an open combustion chamber;
• boilers with a closed combustion chamber.

Combustion in open-type combustion chambers is provided by oxygen supplied directly from the room in which the gas apparatus. Combustion products are thrown out through a special chimney outside the premises. The main requirement is that a chimney must be equipped, and the room must be constantly provided with an influx of fresh air, that is, ventilated, since gas heaters "eat" a lot of oxygen from the room where people can be.

In the absence of an equipped chimney or the possibility of "organizing" it best option- use a gas boiler with a closed combustion chamber.

It uses a special coaxial chimney and a smoke exhauster-fan that removes combustion products from the furnace in forced mode. For such devices located on the walls of apartments or private houses, a coaxial chimney is used that passes through the wall to the outside. And the arrangement of an expensive conventional stationary chimney will require significant funds and time.

Heat exchanger material

The cold coolant is heated while passing through the heat exchangers, which can be made of various materials. There are heat exchangers:

• cast iron - you can say about them: durable, reliable, expensive. They are "long-livers", although they are "afraid" of a sharp temperature drop;
• steel - the prerogative of inexpensive models of boilers. Afraid of corrosion, although more ductile and lighter;
• copper - the leaders of heat exchange components. Corrosion resistant. With a small mass, they are ideal for wall-mounted boiler models.

The choice is determined by the type of heat generator and financial capabilities.

Power calculation

You can determine the required heater power by means of a relatively simple calculations. For this:

1. Perform an average calculation of the heat loss of the room. If the heated room does not border on other unheated rooms, then for 1m2 heat loss can be taken as 100 W. For corner rooms and in the presence of large-area glazing in the room, the “need for” heat is increased to 150 W / m2.

On average, for an area of ​​​​a cottage or apartment of 250 m2 with a ceiling height of up to 3 m, it will be enough to choose a gas heat generator with a power of up to 25 kW. More accurate calculations can be performed only with a detailed study of the object and its needs for heat and hot water.

2. In the case of using a double-circuit heating unit or a single-circuit heating unit with a storage boiler, the need for hot water supply of the facility should be taken into account. The math here is pretty simple. About 400 liters of water are poured out of a standard mixer tap per hour. Since the passports of gas and other boilers indicate its DHW capacity per 1 minute, then to provide hot water to one point of consumption, it is enough to divide 400 liters per hour by 60 minutes.

400l/h/60min = 6.6l/min.

By choosing a device with such a DHW capacity, you will satisfy your needs for hot water. With more water intake points, this performance value must be multiplied by the number of points. It should be understood that such performance is indicated with an increase in the temperature of the water leaving the heat exchanger by 25-35 degrees (see the passport).

Note! With insufficient DHW performance, it is better to work out such an option as installing storage boiler indirect heating, from 40 to several hundred liters. In it, due to the heat of the betrayed coolant, water is heated and “stored” at a certain temperature for a long time.

According to the method of power regulation, there are gas boilers:

• single-stage - operate at the same power level, control is carried out by switching the burner on and off periodically;
• two-stage - have two modes of operation, and the output real power is determined by the frequency of switching on and off the burner;
• with the possibility of a smooth (modulated) power change - units that not only consume gas optimally economically, but also treat themselves “carefully”.

From the point of view of financial "policy", it may be beneficial to purchase a two-stage unit, which is able to economically provide the house with heat, both in the cool season and in very coldy. Reducing the frequency of switching on / off the burner significantly increases its serviceable life.

The power of the device also affects the way it is installed, since for wall options The "ceiling" of power is 32 kW, with a start of 18 kW, and floor-standing specimens can develop more than 100 kW of power.

Additional boiler options

Gas boilers are aimed at "independent" heating of the coolant for the heating system and sanitary water for the needs of consumers. These high-tech devices are controlled automatically.

What other advantages can modern gas boilers offer us:

• their ability to dynamically change the room temperature without human intervention (according to a predetermined program),
• independently control the performance of all heat generator systems;
• ensure the safety of its operation for the facility and people in the room (shutdown in the absence of gas supply, draft in the chimney or leakage of coolant from the system). The same automation will turn on the device on its own when restoring system parameters;
• maintaining efficiency with significant fluctuations in gas pressure in the main, which is relevant and better when used in the domestic gas supply system;

Attention! When buying equipment, pay attention to the nominal and minimum gas pressure values ​​stated in the passport documentation. Russian gas pipelines may not provide the necessary pressure for some models of foreign units.

• the presence in the circuit of the burner power control system, which allows you to get from 37 to 100% of the possible heat from it if needed. Power reduction avoids intensive scale formation in heat exchangers, which increases the “healthy longevity” of the device;
• the presence in the design of the device of the primary circuit temperature control module allows you to quickly (instantly) respond to a sharp increase in temperature in the heat exchanger, reducing the burner power;
• the presence in some models of a magnetic system designed to reduce the formation of scale in the system - passing through a constant magnetic field, salts in water line up so that they do not settle on the pipe walls when the heat exchanger is heated;
• the presence of an electronic ignition system allows you to better control the burner without using a constantly burning igniter, as with piezo ignition, which also significantly saves gas.

More expensive, but better...

In the last decade, more expensive, but also capable of saving a significant amount of gas, condensing boilers are confidently making their way on the domestic market.

Unlike traditional convection boilers, condensing-type units are able to produce 10-25% more heat with the same volume of burned gas. This is due to the use of heat from water vapor in the heat exchanger and their transition from a gaseous state to a liquid one.

The overpayment for such a unit at the time of installation of the heating system pays off quite quickly due to significant fuel savings.

You can also choose non-volatile boilers that can work without consuming electricity, but since most heating systems today work on the principle of forced circulation of the coolant, the power circulation pump will still need to be provided. But such a boiler can be ideal for providing hot water.

Attention! Work with gas equipment should be trusted only to professionals with the appropriate work permit. This will allow you:

• choose the right heat generator;
• be in guaranteed safety during its operation;
• not have unpleasant contacts with such services as organizations controlling gas supply, which will certainly arise when unauthorized equipment is connected to the gas main.

After all, gas, escaping to freedom, can severely punish for the mistakes made.

We touched on the main points that should be touched upon and studied when choosing. It remains for you to decide on the parameters and still consult with professionals in your area regarding which gas boiler is better to use at your facility.

When choosing a gas boiler for your home, you need to consider a number of nuances related to technical specifications building, installed system heating, the actual demand for heat and hot water supply.

Domestic and foreign manufacturers offer a wide range of products. So finding a suitable copy is not a problem. You just need to know what to focus on in order to understand how to choose a gas boiler for heating and not make a mistake. It is also desirable to understand how the presented options differ from each other, and which boiler to choose for a private house.

There are very few external differences between boilers of various modifications. Source makemone.ru

Features of gas heating

Despite the presence of a large number of alternatives (electricity, diesel, diesel fuel, fuel oil, firewood, coal), it is gas heating that is still the leader in the world. And there are good reasons for this:

Profitability. Compared to other options, gas is relatively cheap and has a high efficiency. At the same time, not only the cost of the fuel itself is taken into account, but also additional costs for its storage (for the consumer), maintenance of the entire system, and so on. So, parts for rare types of boilers can be difficult to get, sometimes you have to overpay. This is also taken into account.

Minimum human involvement. Heating a room with wood or coal requires the mechanical addition of fuel. Here everything is automated, including the flow of gas and control of the flame.

Cleanliness, lack of soot, soot and other things. Boilers can be easily installed in the kitchen.

Possibility of heating large rooms. One powerful boiler can cope with a building on several floors.

At the same time gas heating there are also disadvantages. Or rather specific.

Installation must only be carried out by specialists Source neohomesdeaf.org

In particular, the installation of the boiler requires coordination with Gaztekhnadzor. Installation can only be entrusted to an organization with a license that gives the right to provide such services.

Do not forget that the gas is explosive. Therefore, saving on automation is highly undesirable: it monitors, among other things, its leakage (we are talking about modern technology).

In addition, you need to take care of ventilation. The products of combustion can be removed from the building in a natural way. But if there are problems with traction, you need to change the installation location of the boiler (which is not always possible) or provide it forcibly.

Gas boilers for heating a private house: what are they

There are many types of boilers on the market today. And you need to figure out how one type differs from another for the consumer. So it is easier to understand what to choose - a floor-standing gas boiler for heating a private house, or a mounted one, and with what functions, so as not to be mistaken. After all, otherwise you will either have to endure inconvenience, or spend extra money.

Single and double circuit boilers

One of the main methods of classification is the division into one and double-circuit boilers. The latter heat water not only for the heating system, but also for domestic needs. That is, you do not need to install an additional boiler.

The difference between single and double-circuit boilers Source remstrdom.ru

In a word, double-circuit gas boilers for heating a house are designed so that they get cold water from the central water supply system. Then the liquid is heated. In addition, the design has a special valve. It regulates where hot water. If you do not wash anything, do not take a bath, the boiler works to provide the heating system. But as soon as the tap opens, the valve closes the device. And water begins to flow to people.

Consider another important point: in order to be able to take a bath, and not a contrast shower, you need a boiler with a capacity of at least 28 kW. The exact figures already depend on the size of the heated premises and the number of consumers. Roughly speaking, the more people need to wash, for example, the higher the load. And the more powerful the heater should be.

Video description

Clearly about the difference between single and double-circuit boilers in the video:

Can single-circuit boilers be used to heat domestic water? Yes, many modern models allow it. But you have to buy a boiler. It must be connected to the boiler, and in any case, entrusting the entire process, starting with the selection of a suitable model, is worth a specialist. Most consumers, however, in such situations usually simply take a separate boiler that runs on electricity.

An example of a combination of a heating boiler and an indirect heating boiler Source neohomesdeaf.org

Which option is better? Basically, double-circuit boilers are preferred: they are more convenient. But keep in mind that such models are always more expensive. The choice, in any case, depends on the consumer.

Floor and wall boilers

Boilers can still differ in location in space: there are heating boilers for a private house gas floor and wall. The latter take up less space, they are generally more compact. In addition, they can be installed almost anywhere if certain requirements are met. Also, for wall-mounted boilers, it is not necessary to organize a separate chimney: usually everything is solved at the expense of a branch pipe through which combustion products are removed.

What is the difference between floor gas boilers for heating a house (they are officially called that)? They tend to be more powerful and noticeably heavier. For such models, more space is required: firstly, for a stroke, and secondly, for a chimney. And this is not to mention a set consisting of a single-circuit boiler and a boiler. In addition, such specimens are quite noisy, so they are usually installed in a separate room (boiler room).

Most often, the boiler room is equipped in the basement or basement. Source makemone.ru

The choice of the optimal solution depends on what exactly you need in a particular case. That is, for an apartment or a small cottage, the best gas boiler for heating is wall-mounted. For a large house - outdoor.

But when buying, you need to take into account another factor that can become critical: dependence on electricity. Floor boilers are stable in this respect. Even if there is no electricity in the house, the heat will still remain. True, now more and more models are being produced with automation, which removes this advantage. However, options can be found.

But all floor models depend on voltage: power surges can disable equipment. Of course, no one bothers to put a stabilizer. But, firstly, this is an increase in costs. Secondly, the issue of power outage remains.

In general, both floor and wall products have their own advantages and disadvantages. Therefore, figuring out how to choose a gas boiler for a private house depends on the specific room, on the quality of the electrical network and on financial capabilities.

On our website you can find contacts of companies specializing in heating and water supply country houses. You can directly communicate with representatives by visiting the exhibition of houses "Low-Rise Country".

Boilers with open or closed combustion chamber

Boilers can be with an open or with a closed combustion chamber. The first take air from the environment. Therefore, the issue of ventilation in this case becomes critical.

Ventilation is needed even more powerful than for gas stove Source teplo-ltd.ru

There is a risk that oxygen will eventually be lacking. These models are considered obsolete in the EU, they are widely abandoned there, due to increased safety requirements.

At the same time, boilers with an open combustion chamber are characterized by a simple design. Therefore, they fail less often (if we compare models in low price category), are cheaper, installation is easier. Yes, and finding specialists who will deal with them will not be difficult.

Options with a closed combustion chamber are considered more modern. They are safer, but require the installation of a chimney. However, this is just the case when you can spend money on buying an expensive model and installation once, and then not worry that there will not be enough oxygen in the room. Or that someone will suffer from poisoning by combustion products, as happens with problems with boilers of the first type.

But models with a closed camera have their drawbacks. For example, you have to install a ventilation system that needs electricity. Which, firstly, makes such a construction dependent (heat will disappear along with the light), and secondly, it increases the cost of providing a home.

Such a boiler needs a supply and exhaust ventilation Source aquagroup.ru

The easiest way is to stop at boilers with a closed combustion chamber with a pipe leading out. But for the installation of this model is not always technical capabilities. So it is difficult to say in this situation which boiler to choose for the house. We need information about the facility, whether it is possible to organize a separate room or take the pipe outside.

How to choose a boiler for heating a private house

When choosing a gas boiler, you need to consider not only what they are. There are many more important parameters. Let's take a look at what to pay attention to.

How to choose a gas boiler for a private house by power

It should be noted that it is very important to calculate the appropriate power, that is, no less and no more. With the first, everything is clear: the building simply will not warm up sufficiently. But why is it undesirable for the boiler to be more powerful? In this case, the heating system starts to work unevenly, which leads to excessive wear. The result is frequent repairs and premature replacement of the boiler. In addition, gas consumption increases.

Video description

Clearly about the choice of power in the video:

So how do you calculate? In general, it is best to contact experienced professionals with this. The fact is that when calculating, you need to take into account a huge number of different factors:

number of floors;

ceiling height;

the presence or absence of thermal insulation, as well as its type;

year of construction of the house;

wall material;

the selected method of heating water;

climatic zone.

And that's not all! It also matters whether the boiler is selected for townhouses or for ordinary houses (the former are usually warmer, although there are enough nuances here). The calculation is also affected by the presence of other sources of heating in the building, such as underfloor heating. In addition, an experienced specialist always specifies what the average temperature in the room should be. After all, there is a big difference between + 15 and + 23 degrees Celsius.

You can make an approximate calculation like this: you need to multiply the area of ​​\u200b\u200bthe house by the indicator of the climatic zone, and divide the resulting amount by 10. This option is suitable for typical buildings with a ceiling height of up to 3 meters.

Let's say the building is located in the northern regions of Russia. There the climate coefficient is 2 kW. Therefore, the boiler must be 20 kW. But for a double-circuit, this figure must be multiplied by ¼. That is, the result is 25 kW. And remember that he is exemplary!

For the initial assessment of power, you can use the table Source tarifi.info

Which boiler is better for a private house: the question of the chimney

Boilers with an open combustion chamber, as a rule, do not have a chimney. But in this case, it is necessary to ensure the removal of combustion products. And take into account that some part can still get into the air of the room. Therefore, for the safety of people, it is best to install such boilers in a separate room.

If we are talking about a closed chamber, then forced draft is created there. And since the size and cross section of the chimney do not affect the passage of the air flow (blowing depends on the fan), the installation is carried out by a coaxial pipe. It is easy to install, besides it has a small diameter.

Turbine boilers are another option that is popular. Here the air flow is provided by a special fan. The products of combustion are removed immediately to the street. Moreover, the hole is usually small (it can be seen from the outside).

When choosing this model, you can refuse to organize a chimney. But turbine structures need to be cleaned from time to time: if the entrance is clogged from the street, for example, with leaves, then the boiler will stop working.

Turbine boiler ventilation Source spetsotoplenie.ru

Each solution has its own advantages and disadvantages. But remember: only models with natural draft are non-volatile! So if electricity is often cut off in your locality or area, then the only option would be products with natural draft and without a chimney.

Which boiler is better to choose for home heating: manufacturers

There are a lot of options on the market. And there are more and more of them every year. What to do? Try to understand the range.

So, Germany usually offers the most reliable ones. These are Vaillant, Bosch, Buderus, Volf. Italian manufacturers produce copies with an optimal ratio of price, service life and reliability. Of the most famous, it is worth mentioning Ferrolli. Of the less popular ones, Baxi, however, the brand is not particularly well-known in Russia, but in Europe it has long and deservedly enjoyed a good reputation.

South Korean Kiturami will be an ideal option for heating large spaces. If the budget allows, you can pay attention to the Japanese company Rinnai. Her boilers are environmentally friendly, safe and extremely reliable: a guarantee is given for 10 years. In addition, the automation itself regulates the operation of the device depending on the gas pressure.

Video description

Additional information for thinking about choosing a gas boiler in the video:

Of the domestic manufacturers, Borinskoye LLC should be noted. The company's boilers are universal, suitable for most heating systems. Manufactured from high strength steels. Many people are also well aware of the Zhukovsky boilers. Produced in the suburbs, they attract surprisingly affordable price and simple design.

It is difficult to say which option is better here. Much depends on what exactly you are counting on.

Which gas boiler is better to choose for heating a private house: price

Prices for boilers, in terms of the US dollar, start around $ 250 and reach up to several thousand. Moreover, this amount does not always include delivery, and installation in most cases is paid separately.

In general, a double-circuit boiler is more expensive. But if we compare it not with a single-circuit one, but with a set of a boiler and a boiler, then the calculations are no longer so unambiguous. More money will have to spend on the option with a chimney. And the most affordable one is a floor single-circuit boiler with natural draft of domestic production.

Single-circuit floor boiler Source etechzone.ru

True, paying less for a product does not mean that the issue of saving has been finally resolved, because if in a few years you have a serious repair or a complete replacement, then the benefit is frankly doubtful. Therefore, it is undesirable to focus solely on the issue of price when buying a boiler.

The gas boiler is the heart of the heating system. It largely depends on whether your house (or apartment) will warm up normally, how much you have to pay every month for public Utilities, whether there will be a problem with dampness, etc. Therefore, when buying a gas boiler, there is no need to rush. Moreover, there are many types of gas heating boilers for a private house on the market - for every taste and budget. So, you have the opportunity to choose the really best option. We have considered the main criteria for choosing a boiler for heating a private house, and we hope that you will not have any problems choosing this important equipment.

Among all types of boilers, gas units are perhaps the most popular and reliable. And this is not surprising, because our country has vast gas reserves, and this type of fuel is widely distributed even in remote settlements. However, even these seemingly well-known devices have a large number of differences, functions, installation methods and operating modes. As part of this review, we will try to disassemble gas boilers for heating a private house. How to choose the best option and prioritize for ordinary users? Let's find out.

Variety of boiler equipment

Read in the article:

Gas boilers for heating and hot water supply of a private house: how models are classified

The modern heating market has an incredibly huge range of gas equipment. For a general understanding, let's consider the classification of gas boilers according to various criteria.

If we talk about a simple design, then household gas boilers are classified according to the following parameters:

Note! In order to choose a good gas boiler for a private house, it is necessary to determine for what purposes it will be used and what area to heat.

Advantageous features of high-quality gas boilers:

1. The equipment provides a built-in automatic mode, which allows you to monitor the gas pressure.
2. In the event of a malfunction, the sensor sends a signal about this to the electric ignition system, after which the device continues to function normally.
3. The efficiency is very high, and the price of fuel is low. At the same time, the heater gives off a lot of energy, but at the same time consumes much less.
4. With the help of a gas boiler, you can heat quite large rooms or entire objects.

How to choose gas boilers for heating a private house according to functional features

From right choice equipment, first of all, the durability of the boiler and its efficiency will depend.

There are several main criteria for choosing when buying:

1. Material.
2. Gas consumption.
3. Availability of automatic mode.
4. Price policy.

Before buying equipment, it is imperative to calculate the required power for heating your particular home (below is a handy illustrated calculator). Here is an example of a simplified calculation for a small house:

1. If the room has 100 m², you will need a boiler at the rate of 1 kW / 10m².
2. The power indicator of the gas boiler should be 10 kW.

This is a very simplified example that does not take into account the individual characteristics of each building. But in general, the order of numbers is like this.

Related article:

Note! In certain places, you will need to cut some pipes with a grinder. New equipment requires new components.

After all, the equipment is dismantled. If wall-mounted equipment is being dismantled, then you need to take care of stable support so that it does not fall. The work is best done by two people.

How to install a new boiler

Connecting gas equipment

The scheme for installing a gas boiler in a private house includes a connection to:

• water pipe;
• gas pipeline;
• heating system;
• heating and plumbing return.

Note! Installation can be done independently only if there is experience in performing this work.

The connection diagram of a double-circuit gas boiler must include all the necessary piping. When you find a place, you need to carefully consider how to remove combustion products. The boiler is supplied with special mounting brackets. Only after the boiler is securely fixed, you can proceed to the connection of gas and water supply.

The kit includes:

Component	Description
Filters for rough water treatment	These are special cleaning devices that are designed to clean debris from pipes so that it does not get inside the boiler.
Magnetic direction filter	Removes scale and rust.
Gas filter	Installation is required. Extends the operating period and prevents dust from entering the boiler.
Ball valves	Disconnect the boiler from the main for repair work.
Expansion tank for heating system	First of all, this is a guarantee of durability.

During installation, it is imperative to comply with fire safety requirements:

1. There should be a distance of about 0.5 m between the appliance and the wall.
2. The gas boiler must not be installed next to a window opening.

Note! If electricity is needed to operate a gas boiler, then it is better to place the equipment closer to the source.

How to choose a voltage stabilizer for gas boilers for a private house

Specifications:

1. Power 23.2 kW.
2. Fuel consumption 2.3 m3 per hour.
3. Atmospheric burner made of steel.
4. Weight 52 kg.
5. The price of a heating boiler for a private house is 23 thousand rubles.

Unit "AOGV-11.6-3 ECONOMY" and its characteristics

This type of equipment is volatile and is intended for heating for numerous small buildings.

The reservoir has a number of features:

1. Power up to 25 kW.
2. Fuel used: natural gas.
3. The plug with a diameter of 4 cm for connection is mounted in the rear part.
4. The chimney channel is located at the top.
5. Models meet, with one and two interruptions.
6. The cost of equipment is 15 thousand rubles.
7. Steel heat exchanger.

A small boiler with a power of 11 kW will give about 4-5 liters of liquid.

Features of the gas boiler "BUDERUS LOGANO G234 WS-38"

Model characteristics:

1. Power 38-60 kW.
2. Cast iron heater.
3. Atmospheric burner.
4. Automatic device.
5. Connection of the "warm floor" system.
6. Possible heater connection.

The equipment is made for heating various types of premises up to 380 sq.m. Thanks to cast iron heat exchanger, service life up to 15 years.

The equipment can be operated even at very low temperatures. To operate the boiler, you will need a connection to a 220 V network. The boiler provides for an open combustion chamber.

"BAXI SLIM 2300 Fi" - a great sample at an affordable price

The power range in this model range from 16 to 63 kW. Modern design and small dimensions make it easy to install equipment in any interior.

Description and operation:

• The Baxi Slim 2300Fi gas boiler with a built-in boiler and in heating mode provides for electronic modulation of fire.
• Electric ignition turns on very smoothly.
• There is a mode of reconfiguring the system for burnt gas.
• Steel sample of the burner.

Hydraulic system characteristic:

• The heat exchanger is made of cast iron.
• Built-in high speed circulation pump.
• There is a pump for heating water.
• Pressure gauge.
• It is possible to connect an external storage heater.

How is it regulated temperature regime:

• There are two ranges for temperature control.
• Automatic mode, sensor connection system for outdoor temperature control.
• Built-in automation with maintaining the temperature regime in the heating circuit.

There is a temperature display.

Fourth generation equipment "VAILLANT ecoVIT VKK INT 366"

Due to its high performance and power, the equipment has become a leader among the gas industry in Germany. The model gained popularity due to the built-in diagnostic system. Therefore, the equipment works more efficiently, while saving the electrical system.

Advantage Features:

1. Coefficient useful action is 98-109%.
2. Power modulation from 35 to 100%.
3. Additional heat is used due to the fact that vapor condensation occurs.
4. There is a forced outlet to the pipe.
5. There is a steel heat exchanger.
6. There is low temperature protection.
7. Electric ignition.

Along with the above indicators, 2 modes of fuel operation can be noted. Water is heated in layers, there is an electronic ignition system, there is control over gas pressure.

Rating of wall-mounted gas boilers: the best models

If we talk about the choice of boiler equipment, then the brand plays an important role for many users.

Below we consider functional features popular wall fixtures.

Excellent sample "WOLF CGG-1K-24" and its characteristics

Functional features of the equipment:

1. The gas boiler works even with a significant mains voltage from 40 to 400 watts.
2. High efficiency of 90%.
3. Functioning occurs even with unstable gas pressure.
4. Water is heated even at a pressure of 0.4 bar.
5. Mounted gas boilers Wolf CGG-1K-24 simulate power up to 23 kW, this allows you to choose desired mode work and save gas.
6. A copper heater and a burner will allow you to create the necessary efficiency mode.
7. Automatic temperature control.

Specifications:

• Fuel: natural gas.
• Power 25 kW.
• Tank volume: 6 liters.
• Temperature range: 30-90 degrees.
• The temperature regime of a double-circuit turbocharged boiler is 30-60 degrees.
• Weight: 29 kg.
• Price: 55000-65000 rubles.

"BAXI LUNA 3 COMFORT 240 Fi" is one of the best boilers

• Suspended sample with 2 interruptions is made for buildings with an average quadrature.
• There is a built-in panel, which is a temperature sensor.
• Also the model is equipped with the high-speed circulating pump.
• The tank has a volume of 8 liters.

The operation of the system for heating a private house:

• In the heating system mode of the gas boiler, electronic control flame.
• The burner is made of stainless steel.
• There is a fuel switching mode.

Control and security system:

• There is a special reliable protective device against low temperature conditions.
• There is a safety valve.
• A draft sensor is provided for equipment with a closed chamber.
• The safety lock system is activated.
• There is control over the flame.
• There is a built-in system that remembers the last mistakes.

The price of a double-circuit gas boiler for a private house is 51,000 rubles.

Boiler "NAVIEN DELUXE 24K": comfort and reliability

Samples of the Korean company are in demand because of their low cost and excellent quality.

Characteristics:

1. This type of gas boiler has two heaters.
2. Another important point is that the manufacturer produces all the details of the boiler independently.
3. There is a special built-in chip that reliably protects the equipment from sudden power surges. This protection is present in the German manufacturers of Vailant, but the sample already belongs to a completely different price category.
4. And the most distinctive feature of the Navien Deluxe 24KCoaxial gas boiler is the control unit with a digital display. The display warns all faults and errors, the control mode is manual.
5. Another important point is a special built-in sensor for the temperature in the room.

Absolutely all components are included with the boiler. The price of the equipment is 25 thousand rubles.

Gas boiler "PROTHERM GEPARD 23 MOV" and its features

Equipment with two interruptions are created with a power of up to 25 kW.

Installation can be made absolutely in any room and has the following characteristic features:

1. The burner flame is modulated automatically.
2. There is a built-in circulation pump.
3. The tank has 5 liters.
4. The heat exchanger is made of steel.
5. The switching mode is automatic as soon as the hot water tap is opened.
6. There is a built-in operating display indicating errors, temperature and pressure.

The price of equipment is 35,000 rubles.

One of the best models "BOSCH GAZ 4000 W ZWA 24-2 A"

Functional features:

1. There are two heat exchangers for hot water preparation.
2. Steel burner.
3. 8 liter tank volume.
4. Circulating pump consisting of three layers.
5. There is a modulating gas valve.
6. The boiler works in dual mode with fuel.
7. There is a built-in power control modulation system.
8. The temperature is indexed.
9. Low noise level.
10. There is a built-in make-up tap.

"VAILLANT ecoTEC PLUS VUW INT IV 246" performance data

This type of equipment provides economical fuel consumption and the highest level of environmental performance.

Before choosing a gas boiler for heating a private house, consider its functional features:

1. There is a specially developed electronic system (gas-air).
2. Stainless steel heater.
3. Excellent pressure regime, both in the circuit and in the boiler.

Excellent multifunctional display with built-in backlight.

Conclusion

Summing up, we can conclude that the best boiler is the one that works without breakdowns, so you can follow some tips:

1. When choosing equipment, make sure that it does not exceed the rated capacity.
2. The best material for a burner is steel.
3. A secure system should have a minimum set.
4. All pipeline boilers are best selected from steel raw materials.
5. The problem with heating involves the use of a double-circuit boiler.

The classification of these aggregates is rather complicated. Given the peculiarities of their installation and some restrictions associated with the specifics of heating apartments in townhouses or small cottages, the most important parameters are the following.

1. Type of fuel

When choosing a model for an apartment, a private house, you should focus only on gas boilers.

All the rest (solid, liquid fuel or combined) are clearly not suitable for them. The argument is simple - any "fuel" (solar, pellets, and so on) must be stored somewhere. Variant with electrical appliance also disappears. In addition to the difficulties in installation (a separate line, RCD, AB or diffavtomat), there are two more problems.

• Grounding. How to connect the boiler to the corresponding bus? You will need the services of a specialist, and the practical implementation (depending on the type of electric / supply) will be quite expensive.

• This method of heating is not economically viable. Taking into account even the minimum power of the boiler installed in the apartment, the meter will wind up for a very “tidy” sum for a month.

2. Engineering solution

2.1. According to the installation method

There is no choice here - only a wall-mounted boiler. To install the floor model, a separate room (furnace) is required, as well as compliance with a number of requirements for the placement of gas equipment. For townhouses, small cottages, duplexes, low-rise apartment buildings - not an option.

2.2. By power

The most common advice that you can get from a manager in a store is to focus on a ratio of 1 to 10 (boiler power, in kW / apartment area, in m 2). But is everything so simple?

• Not a single technical device will be able to work for a long time at the limit of its capabilities - breakdowns are inevitable.
• No matter how well the house is insulated, it is impossible to reduce heat loss to zero.
• The intensity of heating is influenced by the material of the walls and the position of the apartment in the house (angular or not, and a number of other factors).

Therefore, when choosing a gas boiler, the value of the calculated power (according to the above formula) should be increased by 30 - 35%.

2.3. Type of combustion chamber

It can be open or closed. Here it is necessary to take into account the specifics of the structure.

• With open it is much easier to install a boiler in an apartment with a camera - you only need to connect its branch pipe to the common house smoke exhaust channel. Some disadvantage of such a solution is that taking air from the room, it "dries" it somewhat. But this is the best option for a gas boiler, and regular ventilation of the home eliminates this disadvantage.

• Closed the chamber involves air intake (to ensure the combustion process) from the outside. This means that you will have to hollow out the wall and install a duct bend (or a coaxial chimney). How rational this is and whether it is possible in principle depends on the type of building. Well, if the boiler is chosen to replace the exhausted one, with the chamber open, it definitely does not fit - they will be too significant additional expenses for installation.

2.4. By the number of circuits

This is easy to determine. If the apartment, cottage has an instantaneous water heater ( geyser), just one is enough. But if it is necessary to provide both heating and hot water supply, then it is advisable to purchase a double-circuit boiler for a townhouse or a private house, although it costs more.

Everything else is secondary, and at the discretion of the buyer. For example, the type of control, the presence of a remote control, the number of options in the menu, the form, color solution etc.

The best models of gas boilers for small areas

When buying a wall modification, preference should be given to imported units. They are fully equipped with everything you need, and the only thing they need is competent connection. It is undesirable to install domestic gas boilers in apartments and low-rise buildings - there are complaints about the functioning of the DHW circuit of the units, and something will have to be purchased additionally. For example, an expansion tank.

Wall-mounted heaters under the brands Bosch, Vaillant, Protherm, Lemax (completely from imported components), Baxi are in great demand.