To choose a boiler for heating a private home, you need to take into account many factors. To do this, you need to have information about the main features of each type of boiler, their advantages and disadvantages.
How to choose a boiler for your home
When choosing a heating boiler, several factors must be taken into account. The first is which type of fuel is most affordable in your region. This means not only the price, but also the availability of this type of fuel in warehouses or the possibility of its production/purchase without any problems.
The second thing you need to pay attention to is the possibility battery life. If there is always someone in the house, this item can be omitted. But if during the work week everyone is at work or school, then it is better if the boiler for heating a private house can operate for a long time without human intervention.
The third factor is ease of use and necessity maintenance. Not everyone and not always want to regularly visit the heating boiler. In this case, it is better to take the most automated version. Yes, they are more expensive, but they require minimal maintenance. As for maintenance - some types of fuel require regular cleaning - combustion chambers or burners. If you are not happy with this aspect, you should choose a boiler that requires minimal maintenance. These, by the way, are units that run on gas and electricity.
If there is gas
If there is a gas main near the house, it makes sense to consider purchasing a gas boiler. At the moment, in most regions, gas heating is the cheapest. At the same time, gas heating boilers are autonomous - you can not approach them for weeks, and practically do not require preventive maintenance. The only drawback of this solution is the considerable amount it costs to connect to the highway.
Types of gas boilers
Depending on the type of location, gas heating boilers can be wall-mounted or floor-mounted. The maximum power of wall-mounted options is 60 kW; floor-standing units are also available with 100 kW or more. In addition, some models can work in cascade. Why are wall mounted ones good? gas boilers? The fact that they can be installed in the kitchen, especially since the design matches.
A separate room is required for installation of a gas floor-standing boiler with a power of more than 60 kW. This can be a dedicated room in the house or an extension with a separate entrance - a boiler room. Read about the requirements for such premises for installing a gas boiler.
You can install a gas boiler even if there is no mains, but it is possible to buy liquefied gas. In this option, a floor-standing gas boiler is installed with a burner that can work with liquefied gas (usually reconfiguration is required). It’s difficult to say right away about the efficiency of such heating: you need to calculate how much 1 kW of heat costs when using the available fuel options. Draw conclusions based on the calculation results.
Types of burners
Two types of burners can be installed in wall-mounted gas boilers - atmospheric (open) and turbocharged (closed). Atmospheric burners require a chimney with good draft; turbocharged burners are connected to a coaxial chimney, which can be led directly through the wall near the boiler.
These combustion chambers also differ in the way they select air for combustion. In open burners, air is taken from the room, therefore such rooms must be equipped with supply ventilation of sufficient power. In closed combustion chambers, oxygen is supplied through one of the pipes of the coaxial chimney. Therefore, there are no special requirements for ventilation. But turbocharged boilers have their drawbacks: a chimney installed in the wall can become overgrown with frost, covered with snow, etc. In this case, the boiler does not turn on.
The main difference between wall-mounted gas boilers is the type of burner
When choosing a gas boiler, you should also pay attention to the number of positions in which the gas burner can operate. There are three modifications:
- Single stage. There are only two operating modes - full power and off. The cheapest burners, but the gas consumption is the highest, that is, such boilers are uneconomical to operate.
- Two-stage. There are two operating modes - 100% power and 50%. The third position is off. These burners are more economical and make it easier to maintain the desired temperature.
- Modulated. The most expensive, but also the most economical burners. Depending on the need, they can be turned on either at full power or at 10%, and the adjustment is smooth.
It is clear that in the long term, a boiler with a modulating burner is better for heating a private house. They are more expensive to purchase, but more economical during operation.
Condensing gas boilers
Above we discussed traditional gas boilers for heating a private home. They are also called high-temperature, since at the outlet they produce coolant with a temperature of 45-50°C and higher. Such units are ideal for working with radiator heating.
Condensing boilers are distinguished by the fact that they are effective when operating in low temperature mode - with a temperature in the return pipeline no higher than +40°C. In this case, gas is used most economically - due to the condensation of vapors contained in flue gases, more heat is transferred, which leads to a significant reduction in gas consumption.
Condensing gas boiler for heating a private house warm floors- ideal option
This feature of condensing boilers makes them ideal for home heating. This boiler for heating a private house can produce coolant at the outlet at +35°C, then the return temperature will be about +30°C. Due to this, heating will be economical.
But, as usual, there were some drawbacks. The first is that the condensate formed is very caustic. Therefore, the chimney should be installed only from stainless steel, and of high quality. The second drawback is that the price of condensing boilers is higher than traditional boilers of the same capacity. This is due to a more complex design and also to the fact that condensate-resistant materials are used.
On electricity
If it is technically possible (a significant amount of kilowatts have been allocated), you can install an electric boiler for heating a private home. In terms of ease of operation, these are better units. If there is electricity, they operate in the specified mode, are almost silent, and do not require maintenance. Their main disadvantage is the large sums that have to be paid for heating.
Types of electric boilers
Today there are three types of electric boilers for heating a private home:
In general, if you are thinking of installing an electric boiler for heating a private home, choose between a traditional heating element or an induction one.
A way to make heating cheaper
If there are multi-zone tariffs in the region and the use of an electric boiler for heating a home can be made less expensive. To do this, install a large-capacity heat accumulator in the system. The water in it is heated during the nightly, lower tariff. During the day, during the expensive tariff, the boiler is turned off and the temperature is maintained by transferring the heat stored in the heat accumulator.
Solid fuel boilers
Despite all the shortcomings, solid fuel boilers for heating a private house they are used in most cases. Probably, this is largely due to habit and traditions, but the fact remains that more solid fuel boilers are installed in our country than all others.
Basically, two types of solid fuel are used for heating - wood and coal. Whatever is easier to get and cheaper to buy is what is mostly heated. And boilers for coal and firewood must be used differently: in wood-burning solid fuel boilers, the loading chamber is made of a larger volume so that more firewood can be stored. In coal TT boilers, the firebox is made smaller in size, but with thicker walls: the combustion temperature is very high.
Pros and cons
The advantages of these units include:
- Inexpensive (relatively) heating.
- Simple and reliable boiler design.
- There are non-volatile models that work without electricity.
Serious disadvantages:
Generally speaking, using a solid fuel boiler to heat a private home is an inconvenient solution. Although the purchase of fuel, as a rule, is relatively inexpensive, if you also count the time spent, it is not so cheap.
Long burning boilers
To increase the gap between fuel fills, boilers were developed long burning. They use two technologies:
How effective are these technologies? Quite effective. Depending on the design, one stack of firewood can burn from 6-8 to 24 hours, and coal - from 10-12 hours to several days. But to obtain such a result, it is necessary to use high quality fuel. Both firewood and coal must be dry. This is the basic requirement. When using wet fuel, the boiler may not even enter the smoldering mode, that is, it will not begin to heat. If you have a two to three year supply of firewood or a large shed in which coal is stored, a long-burning boiler for heating a private home - good choice. Better than normal.
Liquid fuel
Heating boilers for private homes using liquid fuel are the least common. There are too many disadvantages to this type of heating:
In general, it makes sense to install an oil-fuel boiler for heating a private home if you have a free (or almost) source of fuel. In all other options, it is better to use other heating equipment.
Pellet boilers
Boilers operating on pellets are difficult to classify, so they are usually discussed separately. The fuel for this type of boiler is small pellets made from compressed sawdust. A bunker is made near the boiler to store pellets. Its size determines the battery life of the equipment. If there is enough space, the bunker can be made to hold several tons of fuel. The minimum size is for a couple of buckets, which is enough for a day of work.
The pellet heating boiler is equipped with a special burner. Pellets from the bunker are automatically fed into the combustion zone, where they burn with virtually no residue. Normal quality granules produce only 3-5% ash. Therefore, cleaning is rarely required - once a week or even once every few weeks. The equipment is fully automated; with a sufficient supply of fuel, you can go weeks without visiting.
But even here there are some drawbacks. The first is the high price of equipment. The second is the demands on the quality of pellets. They should have low ash content, good calorific value, and should not break or crumble. Otherwise, a pellet boiler for heating a private home is a good choice. Another advantage is that waste from the wood processing industry is used.
Combination boilers
There is also such a modification of heating boilers as combined heating devices. The most popular option is a solid fuel boiler with several electric heating elements. Such units operate as TT equipment while the wood or coal is burning; when the fire goes out, the boiler cools down slightly, the electrical part turns on. In this case, heating elements are not able to fully heat the house, but they manage to support the system. That is, in the morning the house will not be cold. And in the event of a long absence, the heating elements will not allow the system to freeze.
Another popular option is TT combination boilers with liquid fuel burners. Such units have two separate combustion chambers. One for solid fuel, the second for a burner with liquid fuel.
The advantages of such boilers are obvious: you can use several types of fuel. The disadvantage is the high price and average efficiency - the efficiency of each part is not very high. So a combination boiler for heating a private house is a controversial decision.
So how do you choose a boiler for heating a private house?
To make it easier to navigate when choosing, let's systematize the information. Let's look at the most typical requirements that influence the choice of boiler type:
If you take into account the availability and affordability of fuel, making your choice is not difficult.
The heating boiler will provide the home with heat without the need to connect to central communications, resulting in cost savings and the ability to adjust the level of air heating when you have your own. This is why cottage owners often choose boilers as a means of heating. And for those who cannot connect to the central system at all, such a device becomes a real salvation. At the same time, you can select equipment according to various parameters and defining characteristics in each specific case. So which boiler is best for a private home?
Types of heating boilers
A boiler is a device that produces heat by processing a certain type of fuel. The installation can be of different sizes, shapes, power, installed in different ways, and can also be made of various materials. Of course, all these indicators affect the cost of the device - there are budget boilers that cost only a few thousand, and there are also very expensive models costing more than 100 thousand rubles. At the same time, the price range varies from minimum to maximum among boilers of different types. What types of heating boilers are there and by what criteria are they classified?
Table. Classification of heating boilers.
To make it easier to decide on the choice of boiler, let’s get acquainted with their main types in more detail.
Double-circuit and single-circuit
Did you know that a heating boiler can not only heat the coolant in the heating circuit from pipes laid throughout the house? The installation may well provide housing and hot water without purchasing a water heating boiler. The fact is that the unit can have two circuits - in one of them the water is heated for the purpose of heating buildings, in the other - in order to flow from the taps, the shower is warm. Hence the name - double-circuit. A single-circuit boiler is used only to heat the coolant for heating buildings.
Single-circuit gas boiler - diagram
The advantage of a single-circuit boiler is that it is cheaper and easier to maintain, but purchasing and installing the unit and boiler separately will cost more than purchasing and installing a double-circuit boiler. The latter takes up quite a lot of space, but, again, no more than a boiler and a single-circuit unit.
Unfortunately, it will not heat large volumes of water, so it makes sense to buy it if DHW costs are low. Otherwise, it’s easier to purchase a single-circuit boiler separately.
Fuel varies
As we noted earlier, boilers can operate at different types fuel. And here you should choose an installation based on the cost of fuel in a particular place - in some places it is cheaper to connect to gas, and in others it is more profitable to use electricity or ordinary firewood. Also, in certain cases (for example, if connecting to a gas main is impossible), a certain type of fuel will be the only solution.
Gas boilers are rightfully considered the most economical, as they use natural or liquefied gas - one of the cheapest types of fuel. Moreover, the amount of heat released when burning this raw material is maximum compared to other types. relatively environmentally friendly - emissions into the atmosphere contain a minimum of air pollutants.
Note! Gas boilers last quite a long time - for example, devices with a steel heat exchanger work for about 30 years, and with cast iron parts - all 50.
Another advantage of such a boiler is that there is no need to make storage for fuel, because the installation is connected directly to the gas main and takes fuel from there. And a person will not have to particularly control the combustion process - everything in the boiler is automated.
But connecting) is not so easy: first you need to coordinate everything with the supervisory authorities, connect the gas pipeline to the house. And during installation, it is important to check the tightness of all connections and components to avoid leakage. At the same time, only those whose house can be connected to the gas main can use such a boiler.
Electric boiler
Boilers that run on electricity come in three types and differ from each other in their operating principles.
Heating elements new devices They have tubular heaters inside the structure, which provide heating of the coolant (water). Such installations are usually automated, have relatively small dimensions and are often wall-mounted. Their main drawback is the formation of scale on the heating elements.
Eat devices operating on electrodes, there are no heating elements inside them anymore. The water is heated by a conductive electrode. Such devices are inexpensive, and their sizes are also modest. Their main disadvantages are the inability to use antifreeze as a coolant, the need for control, and regular replacement of electrodes.
Electric boiler, can also be inductive, where the basis of operation is the so-called electromagnetic induction. By appearance such a device resembles a conventional transformer, which is located inside a welded housing. The induction coil does not come into contact with water, but during operation of the device, its core heats up and the resulting heat is transferred to the liquid that circulates around. The efficiency of the device is very high, as are its dimensions.
Attention! Electric boilers are not suitable for use in areas where there are frequent power failures. If the power goes out frequently, then either another type of installation or the construction of a generator is necessary.
In general, electric boilers are environmentally friendly, cheap, operate quietly, and are easy to use - they do not require much attention. There is also no need to install a chimney. But they spend quite a lot of electricity.
Solid fuel boiler
- This is the simplest option for heating equipment. In essence, this is an ordinary stove with a firebox and coolant. Fuel, which can be coal, firewood, sawdust, shavings, peat, fuel pellets, is placed in the combustion chamber, ignited by a burner and, burning, heats the coolant and water contained in it, i.e.
Types.
To install such a boiler in a house, you will have to equip a chimney, and also be prepared for the fact that the installation will have to be regularly cleaned of ash and soot. Without cleaning, the device will begin to give off heat worse, and in the future it will completely fail.
Choosing a boiler for heating a house
How can you choose a truly suitable boiler for heating a private home among such a variety of types? In fact, the secret is simple - you need to determine exactly why the boiler is being purchased and how much money the home owner has.
Step 1. The first step is to decide for what purpose the boiler is being purchased - just to heat the house? Maybe it makes sense to take a double-circuit heater that will also heat the water? Here a lot depends on the number of people living in the house and the required volume hot water. If it is consumed in too large volumes, then it would be optimal to buy a boiler and a single-circuit boiler separately. But in a house where the hot water supply will not be so intense, it is more economical and logical to install a double-circuit.
Step 2. Now you need to decide which type of fuel is cheapest to buy. Here, a lot depends on the region - somewhere wood is cheaper, somewhere it’s easier to install an electric boiler. But in any case, if a gas main is connected to the house, the choice should be made in favor of a gas boiler.
Step 3. Cast iron or steel? Home owners can choose according to their wishes and the thickness of their wallet. Of course, steel is easier to buy, but cast iron is better in terms of heat transfer. However, now boilers of the second type appear on the market less and less often. Therefore, it makes sense to still choose a steel boiler, but from high-quality metal.
Step 4. The noise level should also be assessed, as well as the possibility of installing a chimney in the house. Installation requirements vary for all types of boilers, and the installation capabilities of a particular type must be taken into account objectively.
Step 5. It is important to calculate the boiler power, which is necessary to fully heat a residential building, before purchasing. On average, for normal heating you need about 1 kW per 1 m2. But it is important to take into account the height of the ceilings, the size and number of windows, doorways and other openings. The need to heat water for domestic hot water in the case of a double-circuit boiler is also necessarily taken into account.
and the required power of the gas boiler
Evgeniy Sedov
When your hands grow from the right place, life is more fun :)
Today there are many options for heating equipment for residential premises. Economical gas boilers for heating a private home have become very popular. Thanks to the large selection of such devices, each buyer can find a model for themselves in accordance with personal preferences and a certain budget. Installing such equipment will allow you to save on fuel costs, because natural gas it is relatively cheap. Additionally, a gas boiler does not require frequent maintenance, like an oil or wood boiler.
What is a gas boiler
This is a device used to generate thermal energy for the purpose of heating premises for various purposes and heating water for household and other purposes through gas combustion. Such boilers are widely used for domestic purposes, for example, for heating a private home. You can order a heating boiler for a private home in a specialized online store with delivery by mail to Moscow, St. Petersburg or another city in the country. Remember that gas is a flammable and explosive fuel, so it is important to follow safety precautions.
The principle of operation of a gas boiler is that when fuel is supplied to the device, the piezoelectric ignition is turned on. The spark subsequently ignites the igniter. Supplying fuel to the burner when the igniter is not lit is unacceptable, because gas may explode. The igniter ignites the main heater, which heats the coolant in the boiler to the temperature set by the thermostat. When the desired parameter is reached, the automation turns off the burner. When the temperature in the device drops, the temperature sensor commands the valve to supply fuel, and the burner lights up again. Classification:
- by location: floor and wall;
- by functionality: single- and double-circuit;
- by type of traction: natural and forced;
- by type of ignition: with piezo ignition and with electronic ignition;
- according to the complete use of fuel energy: convection (traditional) and condensation.
How to choose a gas boiler for heating a private house
To purchase the best gas boiler for heating a private home, you need to take into account several important criteria. The choice of a suitable device depends on the total area of the heated room, the need to heat hot water and the number of its consumers, the presence of a chimney and the pressure in the gas pipeline. Additionally, you need to take into account the presence of insulation on the walls. Browse online catalogs with photos and take into account the following tips:
- Wall-mounted or floor-standing gas boiler. The choice of heating equipment for a private home must begin with the selection of a place for its installation. If you have space for a separate boiler room, then you can choose a floor-standing device, otherwise limit yourself to a wall-mounted modification. A floor-standing boiler is often made on the basis of a reliable cast-iron heat exchanger - this model has a significant margin of reliability, it is unpretentious and does not cause problems in operation. Floor-standing equipment for private homes has high power. The wall-mounted analogue is compact - it is ideal for heating a small object.
- Single-circuit or double-circuit equipment. Single-circuit equipment is widely used to heat a private home. It has a very simple device - it has a heating pad and one heat exchanger. The double-circuit modification combines a boiler and a gas instantaneous water heater. Its design is more complex, but at the same time it is more functional and easier to install.
- With natural or forced ventilation. In the first case, the hood passes through the chimneys available in the house, in the second, the unit has built-in fans that remove waste gases from the boiler and remove them outside.
- With open or closed combustion chamber. To ensure that the choice of a gas boiler for a private home is optimal, pay attention to the type of combustion chamber. A model with an open chamber is often called “atmospheric”, because. air flows to the burners by gravity directly from the room. Combustion products are removed through a chimney with natural draft. This option has a simple design and low noise level. A turbocharged gas boiler for heating private houses has a closed combustion chamber and fans for removing smoke and air intake. It requires electricity to operate. It has a complex design and high noise level.
- Heat exchanger material. This element can be cast iron or steel. The first option is more durable, because... does not corrode, but is more fragile. New models use gray cast iron, which makes them more durable and less fragile. A steel heat exchanger is lighter, but it is susceptible to corrosion.
- Pressurized or atmospheric burner. The first installation is characterized by high efficiency, good power, but is expensive. The second option is more affordable in terms of cost, but low-power. A forced-air burner must be purchased separately, but an atmospheric burner is included in the package of the gas boiler.
- Convection or condensation model. Gas boilers for heating a private house are often built using a convection scheme. The burner in this case generates thermal energy, and the heat exchanger takes the resulting heat, which is sent to the system - its remains go outside. The efficiency of such devices is 90-93%. For condensing units it is slightly higher. The scheme of their work is as follows: in heating system Almost all the generated heat is taken away, resulting in condensation that is sent to the drainage.
- Piezo ignition or electric ignition of the burner. In the first case, the ignition process is manual, in the second – automatic.
- Assess the safety of operation. Many modern gas heating boilers are equipped with sensors that monitor the operation of the unit at all stages - from the supply of water and gas to the removal of exhaust gases to the outside. They are capable of blocking the heating system if the electricity suddenly goes out or blocking the boiler if the temperature exceeds the established norm. For such sensors, constant availability of electrical power is important. There are floor-mounted installations whose sensors operate in mechanical mode, regardless of the power supply.
- Calculate the power. To heat 10 m2 of living space in the domestic climate, you need about 1 kW of thermal energy. In the Far Eastern and northern regions this figure increases to 1.2-1.5 kW, in the southern regions it ranges from 0.8 kW. Don't forget about the reserve that is needed in case of excessively cold winters and heat losses. It is usually 10-20%.
Types of gas heating boilers for a private home
Manufacturers heating equipment offer a wide range of single- and double-circuit gas boilers with both open and closed combustion chambers to choose from. At the same time, there are also non-volatile devices on sale. In the absence of a gas pipeline, you can give preference autonomous heating houses on liquefied gas. Many models are equipped with a circulation pump to increase efficiency (especially at low gas pressure in the system). The rating of heating boilers for private homes often includes brand models:
- Bosch;
- Protherm;
- ATON;
- Leberg;
- Buderus.
Bosch
The Bosch Gaz 6000 W WBN 6000-24 C boiler for heating a private home runs on both natural and liquefied gas. The device is equipped with several connection pipes, self-diagnostics, overheating protection, an air vent and protection against pump blocking. Additionally, there is a frost prevention mode and a small display that displays basic information. More details about the parameters:
- model name: Bosch Gaz 6000 W WBN 6000-24 C;
- price: 27280 rub.;
- characteristics: circuits – 2, installation – wall-mounted, control – electronic, combustion chamber – closed, power – 7.2-24 kW, mains voltage – single-phase, expansion tank – 8 l, medium temperature – 40-82°C, natural gas consumption gas - 2.8 m3/h, liquefied - 2 kg/h, functions - pressure gauge, thermometer, auto-ignition, flame modulation, power indicator, dimensions - 40x70x29.9 cm, weight - 32 kg;
- pros: build quality, versatility;
- cons: inconvenient controls.
A floor-standing version of a gas boiler from Bosch is Gaz 2500 F 30. The model has power modulation, an LCD display, as well as thermal disinfection and freeze protection functions:
- model name: Bosch Gaz 2500 F 30;
- price: 55,000 rub.;
- characteristics: installation type - floor-standing, power - 30 kW, circuits - 1, combustion chamber - open, water volume in the boiler - 107 l, efficiency - 92%, heat exchanger material - steel, protection (degree) - IPX4D, heating system t - 55-90°C, dimensions – 109.2x58.9x87.7 cm, weight – 137 kg;
- pros: functional, powerful, adapted to Russian operating conditions;
- cons: overpriced.
Protherm
The floor-standing steel gas boiler Protherm Wolf 12 KSO is suitable only for heating. The model is intended for a system with natural coolant circulation. The device is electrically independent. Suitable for installation in a residential building, country house And production premises. There is an atmospheric burner made of steel (stainless), flame presence control, overheating protection, chimney draft control and indication of temperature and coolant pressure:
- model name: Protherm Wolf 12 KSO;
- price: RUB 16,968;
- characteristics: type – atmospheric, installation – floor-standing, power – 12.5 kW, combustion chamber – open, circuits – 1, efficiency – 92.5%, fuel – main gas, ignition type – piezo ignition, dimensions – 74.5x46x39 cm, weight – 46.5 kg;
- pros: low cost, electrical independence, has the necessary functions;
- cons: low power.
The floor-standing modification of the Protherm Medved 20 PLO gas boiler is an excellent solution for both heating a private home and heating hot water. There is protection against overheating, control of draft in the chimney and the presence of flame:
- model name: Protherm Bear 20 PLO;
- price: 44645 rub.;
- characteristics: type – atmospheric, installation – floor-standing, power – 17 kW, combustion chamber – open, circuits – 1, operating mode – “Winter-Summer”, heat exchanger material – cast iron, ignition type – piezo ignition, dimensions – 88x33.5x60 cm, weight – 90 kg;
- pros: ease of installation, maintenance, build quality;
- Cons: low power for the price.
ATON
The modern economy class unit Aton Atmo 8E is suitable for natural coolant circulation conditions, so it does not have to be connected to the power supply. Built-in automation regulates the water temperature. The pilot burner is started by piezo ignition. The equipment is equipped with a draft sensor and a gas valve. Smoke removal occurs naturally. Parameters:
- model name: ATON Atmo 8E;
- price: RUB 13,882;
- characteristics: installation - floor-mounted, circuits - 1, combustion chamber - open, power - 8 kW, efficiency - 90%, temperature control range - 50-90°C, dimensions - 75.4x26.4x56.6 cm, weight - 39 kg ;
- advantages: low cost, simple and reliable design;
- cons: low power.
An alternative purchase would be ATON Atmo 20E. The equipment is equipped with a thermometer, gas control and overheating protection:
- model name: ATON Atmo 20E;
- price: 24300 rub.;
- characteristics: type - convection, installation - floor, circuits - 1, power - up to 20 kW, combustion chamber - open, efficiency - 90%, control - mechanical, heat exchanger - steel, coolant temperature - 50-90°C, dimensions - 40x96x70 cm, weight – 81 kg;
- pros: good assembly, optimal functionality;
- cons: none.
The Leberg Flamme 20 ASF double-circuit gas boiler with a bithermic heat exchanger is perfect for heating a private home. The efficiency of the device reaches 91.6%. Temperature information is shown on the display. It is possible to connect a heated floor. The equipment is equipped with a pressure gauge, thermometer, auto-ignition, flame modulation and overheating protection. Additionally, there is auto-diagnosis and a freeze prevention mode:
- model name: Leberg Flamme 20 ASF;
- price: 33200 rub.;
- characteristics: type - convection, installation - wall-mounted, control - electronic, combustion chamber - closed, power - up to 20 kW, circuits - 2, coolant temperature - 30-80°C, there is a circulation pump and expansion tank, dimensions - 41x74x31.5 cm, weight – 37.8 kg;
- pros: excellent set of functions, complete set, good performance;
- cons: not the most affordable price.
Flamme 24 ASD from Leberg – dual circuit gas equipment with built-in expansion tank and circulation pump. It has protection against pump blocking, overheating, auto-ignition and a set of other equally important functions:
- model name: Flamme 24 ASD from Leberg;
- price: 35,700 rub.;
- characteristics: type - convection, installation - wall-mounted, control - electronic, combustion chamber - closed, power - up to 20 kW, efficiency - 96.1%, circuits - 2, coolant temperature - 30-85°C, dimensions - 41x74x26.5 cm, weight – 37.8 kg;
- pros: high-performance, multifunctional;
- cons: expensive.
Buderus
Wall-mounted gas equipment Logamax U052-24K from Buderus is a reliable modern boiler that is suitable for heating large rooms up to 240 m2. The device has a bithermal copper heat exchanger, electronic ignition and weather-dependent mode. The control system is capable of supplying boiler water to 4 heating circuits (independent). Maintenance and installation will not cause problems, more details about the parameters:
- model name: Buderus Logamax U052-24K;
- price: RUB 55,858;
- characteristics: type – convection, installation – wall-mounted, power phases – 1, circuits – 2, fuel – liquefied and natural gas, combustion chamber – closed, expansion tank (volume) – 8 l, power – up to 26.2 kW, efficiency – 90-92%, weight (gross) – 42.3 kg;
- pros: powerful, easy to maintain, large expansion tank;
- cons: expensive, efficiency lower than analogues.
Video
When choosing a gas heating boiler for a private home, take into account several nuances related to the installed heating system, technical characteristics buildings, and the actual needs for heat and hot water. A wide range of products offered by domestic and foreign manufacturers will allow you to select a boiler that is optimally suited in each specific case.
Types of gas boilers for private housing construction
Modern gas boilers for heating and hot water supply to a private home are designed taking into account the operating characteristics. The internal structure has been modified to make gas combustion as economical as possible and increase thermal efficiency.Not every gas boiler installed in a private house will work equally efficiently and provide better heat transfer. When deciding whether to purchase a heat generator, several parameters are taken into account:
- Type of heating system in a private house with a gas boiler– for classic boilers, radiator heating is suitable, some modern models, will work effectively only when connected to heated floors.
- Fuel type - economical gas combustion and high heat transfer - are the main criteria for choosing boiler equipment. High efficiency and thermal efficiency are especially important when operating on liquefied gas. If it is planned or, special attention is paid to the efficiency of boilers.
By accommodation type
The selection of a gas boiler for a private home begins with choosing a unit according to the type of placement. There are wall-mounted and floor-mounted models. Each has its own characteristics and differences:- A wall-mounted boiler is usually energy-dependent. To lighten the structure and reduce the load on the load-bearing wall, designers resort to various tricks. Weight is reduced through the use of metal alloys and a bithermal heat exchanger.
In the design of a double-circuit unit, a storage tank for heating water is often built in.
Wall-mounted single-circuit gas boilers for heating a private home do not have such a modification. Models with one circuit are intended exclusively for heating, but if necessary, it is possible to connect a remote tank for heating DHW.
The advantage of wall-mounted units is space saving, the ability (for some models) to be built into a kitchen cabinet, as well as easy connection to the heating system. - Floor standing gas boiler– not limited by productivity, like mounted analogues. Available in single-circuit and double-circuit versions, with a heat exchanger made of steel and cast iron. The floor-standing design is not always convenient, especially if the boiler is installed in the kitchen, where there is not always enough space even without heating equipment.
By type of gas combustion chamber
According to the design, the combustion chambers distinguish three configurations of heating equipment, differing in efficiency and installation requirements:
When choosing a boiler based on the design of the combustion chamber, they take into account the dependence of the boiler on the presence of voltage in the network, the type of heating system and the fuel that they plan to use.
By number of circuits
Despite the abundance of various modifications, the consumer is still offered single-circuit or double-circuit boilers, but with the presence of certain additional functions(built-in boiler, etc.). Each decision has its positive and negative sides:
A double-circuit boiler is chosen when, in addition to heating, there is a need to obtain hot water. If there is no such need, install a single-circuit heat generator.
How to choose a gas heating boiler for a private home
The choice of a gas boiler for heating a private home, in addition to the design and operating parameters, is influenced by several other factors:- Power.
- Manufacturer.
- Price.
How to calculate boiler power
Calculation of the power of a gas boiler for heating a private house is carried out in several ways. But, as practice shows, the most common calculation methods are:- Calculations using online calculators – initially, were developed for consultants to facilitate calculations and selection of boilers for clients. At the moment, many websites for the selection of heating equipment are available to all visitors. When selecting, you will need to enter information about the area, degree of thermal insulation, the presence of window and door openings, and much more.
- Independent calculations– you can calculate the approximate power of the boiler using a simple formula: 1 kW = 10 m². Calculations will show an inaccurate value and will require power adjustments, taking into account the required reserve for the cold winter and the need for hot water supply.
Which company to choose a boiler
The best gas heating boilers for country houses, manufactured by European manufacturers. The largest concerns are located in Germany, France, Italy and the Czech Republic. In the rating of boilers, domestic models of heating equipment occupy not the last positions.Below is a list of the most popular models based on sales and searches. For convenience, the offered brands of boilers are distributed depending on the company and operating principle:
- Bosch - which began producing boilers at a plant in Russia. Bosch Gaz atmospheric boiler and Bosch Condens condensing boiler are available.
- – heating equipment from Germany. Wall-mounted Buderus Logamax, with one or two circuits, an open and closed combustion chamber, and Buderus Vitopend, with a built-in storage boiler, are available.
- – . It produces the following modifications: Viessmann Vitodens, condensation type and Viessmann Vitopend, with an atmospheric combustion chamber.
- – . The products are represented by the Navien DELUXE series, with a closed combustion chamber, turbocharged type, and Navien ATMO, with a classic combustion chamber.
- – . Popular models are offered in the following modifications: Vaillant turboTEC - a turbocharged boiler with a closed combustion chamber, and Vaillant atmoTEC, an atmospheric type.
- Baxi – enjoys special favor among Russian consumers. Four equipment configurations are offered: turbocharged Baxi ECO and Baxi LUNA, with a built-in boiler Baxi NUVOLA and with an atmospheric combustion chamber, Baxi MAIN.
- BaltGaz is a Russian brand that produces dual-circuit BaltGaz Neva, turbocharged BaltGaz NevaTec and atmospheric BaltGaz Therm.
- Neva Lux – Russian manufacturer single and double-circuit boilers in floor-mounted and wall-mounted versions.
The most economical boilers use the principle of condensation heating of the coolant. Condensing models are produced exclusively by European companies.
Low-temperature heating mode is not suitable for heating houses located in northern latitudes. Installation of condensing boilers is advisable in mid-latitudes, in mild climates.
The cost of a boiler for a private house
Prices for gas boilers for heating a private home vary depending on the manufacturer, combustion chamber, number of circuits and thermal characteristics. The most expensive purchase will be a condensing heat generator offered by the leaders in the production of heating equipment, the German concerns Buderus and Viessmann, as well as the French company De Dietrich.For comparison, prices for double-circuit gas boilers for heating country house, from the Russian company Neva Lux, is approximately 2 times cheaper than a similar Viessmann and 1.2-1.5 for the Italian Baxi. But, if you consider that gas consumption in European-made heat generators is 15-20% less, all the extra costs will pay off within 3-5 heating seasons.
The heating circuit is a complex structure consisting of a pipeline and radiators, as well as a boiler, which is the basic element of the system. Choosing the right boiler for heating a private home will ensure efficient and uninterrupted operation of the heating circuit and will help the system operate at its peak performance.
When deciding which boiler is best for a private home, you should pay attention to many nuances that characterize the performance, efficiency, autonomy and environmental friendliness of the device. The heating system will operate at its peak performance if the boiler is correctly selected in terms of power. When calculating this indicator, the climatic characteristics of the region, the volume of the heated room, its specificity and the quality of thermal insulation are taken into account.
Thermal power indicators can be accurately calculated by heating engineers - specialists who will competently assess the existing conditions and carry out a number of necessary calculations. The calculations obtained by heating engineers will be used in the future to assess the compliance of the selected boiler with the thermal needs of the heating circuit.
Boiler classification
Any hardware store can offer consumers a huge range of boilers, which differ in functionality, price, appearance and operating principle. Since there are no two identical buildings with identical heating needs, the choice of boiler must be made on an individual basis. In this case, first of all, the consumer should pay attention not to the design of the boiler and the amount indicated on the price tag, but to the type of fuel used by the device.
The following types of boilers are distinguished:
- solid fuel;
- liquid fuel;
- electrical;
- gas;
- combined.
It is generally accepted that the most rational option is to choose a conventional gas boiler, such as, for example, the Buderus Logamax U072 24K gas boiler, reviews of which indicate in favor of purchasing this device. However, not everything is so simple, because each device has its own specific operation and can be adapted to the circuit of a specific heating system. To understand the differences and similarities between various boilers intended for private ownership, it is necessary to study the specifics of their operation.
Gas boilers - a combination of efficiency and economy
To heat private property, the owner can buy a heating boiler that runs on liquefied or natural gas. There are autonomous and energy-dependent boilers.
Autonomous boilers
Thus, autonomous boiler models are not equipped with automation and an integrated coolant circulation system. They can operate in a completely independent mode and do not require any energy resources other than gas. An autonomous floor-standing gas boiler with a cast iron heat exchanger can be installed in a private household, and the owner will not need to install a diesel electric generator to maintain the operation of the boiler in cases of emergency power outage.
Volatile boilers
Energy-dependent appliances, such as the Keber gas boiler, are equipped with complex automatic systems - an integrated electric thermostat, a remote control panel, a programmable operation timer, a carbon monoxide detector and an emergency shutdown system. During periods of power outages, such boilers completely lose their functionality. Therefore, when choosing energy-dependent types of heating boilers for a private home, the owner should consider alternative power sources for the device that will prevent the system from defrosting in the winter when there is a power outage.
Classification of gas boilers by installation method and number of circuits
Depending on the installation method, a gas heating boiler for a private home, reviews of which are worth reading on the manufacturer’s website, can be wall-mounted or floor-mounted. Floor standing boilers They involve a simple installation procedure and require installation in a separate room with a good ventilation system.
For optimal operation of a floor-standing boiler, the owner will have to install an additional water pump in the circuit and equip chimney channels with good draft.
There may also be differences in the design of the gas boiler itself. There are single-circuit devices designed exclusively for heating, as well as two- and three-circuit boilers, which require connection to a hot water supply system or heated floor. Boilers with different numbers of heating circuits differ not only in functionality, but also in cost, so it is important to choose a boiler that best complements the designed heating system and satisfies the buyer at a price.
Gas boilers for heating a private home, prices for which can be found on the manufacturers’ websites, have a number of advantages:
- efficiency;
- ease of operation;
- reliability.
The disadvantages of the equipment include the following factors:
Solid fuel models
Solid fuel boilers have been used in heating systems for a long time. This is explained by the availability of fuel, such as peat, wood briquettes, granulated sawdust, waste from the wood processing industry, etc. Many modern brands have introduced solid fuel boilers to the market for heating a private home, the owner will be able to find out how to choose the appropriate boiler model after becoming familiar with their characteristics.
Currently, boilers are classified according to several criteria:
Boilers are also classified according to the type of fuel used. There are solid fuel heating boilers using pellets for a private home, boilers using coal, as well as universal models designed for burning various types solid fuel.
Specifics of the design of solid fuel boilers
The main feature that distinguishes solid fuel heating boilers, universal for a private home, prices for which start from 200 USD, is their floor-standing format. Such boilers have massive dimensions and large weight, so manufacturers recommend installing them on a strong horizontal base made of concrete or stone.
The specifics of the design presuppose the presence of a firebox of a certain volume, which is necessary for storing solid fuel burned during the operation of the boiler. Since solid fuel combustion occurs unevenly, manufacturers install sectional-type cast iron heat exchangers in boilers, which contribute to smooth, wave-like heating of the coolant.
Advantages and disadvantages of solid fuel boilers
Before deciding to install a solid fuel boiler in a private home, you need to know its pros and cons.
The advantages of the devices include the following indicators:
The disadvantages of the device include:
Boilers running on fuel oil and diesel fuel (DF)
Boilers of this type require liquid fuel as an energy source, which is most often diesel fuel.
In private homes, an liquid fuel heating boiler is installed if the owner does not have the opportunity to use a gas or solid fuel analogue.
The efficiency of this boiler is high, it has a universal scope of application and, with the proper level of insulation, can provide heat private house any area. However, when choosing an oil-fired boiler for a private home, it is worth remembering safety measures, because the fuel used by the device during operation is highly flammable, and violation of the storage conditions for diesel fuel can lead to a fire.
Features of operation of liquid fuel boilers
When installing universal liquid fuel boilers for heating a private home, the owner must equip ventilation system mine type. The best choice is a stainless steel chimney that is designed to withstand harsh conditions. It will ensure timely removal of condensate and exhaust gases to the street and ensure safe operation of the boiler.
Advantages and disadvantages of liquid fuel boilers
Manufacturers often offer liquid fuel boilers, which, by replacing just one part - the burner, can use natural gas as fuel. This versatility is an additional advantage to the following positive characteristics of the boiler: 
- high efficiency;
- high power;
- no need to obtain permits for installation.
The disadvantages of liquid fuel models are:
Electric boilers
The owner can buy an electric boiler, the price of which is about one hundred dollars for an entry-level model with a power of 3 kW, and install it in the heating system. Electrical appliances, including the Kospel electric boiler, are distinguished by their compact dimensions, competitive performance characteristics and environmental friendliness. The only criticism is that electric boilers have limited power, and they cannot be used as a full-fledged heating source if the area of a private house exceeds 100 square meters. You can read more about electric heating at home.
The low prevalence of electric boilers has been contributed to by the high price of electricity, which makes heating a home using devices of this type irrational. Owners often install a device such as the Evan electric boiler, reviews of which can be found on the global network, as an additional source of heat.
Consumers who are looking for an energy-efficient electric boiler option can consider products from the Proterm brand. Electric boilers can be purchased in a wide range of this manufacturer, represented by models of various capacities. These boilers are characterized by rational consumption of electricity and will help you find reserves for savings.
Electric boilers have a number of specific features that distinguish them from gas and oil boilers, these are:
The disadvantages of electric boilers are largely due to the high cost of energy. Disadvantages also include: 
- low rated power;
- dependence on external power sources;
- the need for reliable wiring.
Each type of heating equipment can be adapted to the heating system of a private home. Before making the final choice of boiler, the owner will have to assess his finances, study the features of the building layout and calculate the heating costs that will accompany the use heating device a certain type.