The cost of floor gas boilers

Another important selection criterion is the price of the device. Condensing models are much more expensive than convection models. It is better to purchase a boiler that can work on both natural and liquefied fuels.

Basically, devices of an affordable price category include models with low efficiency. More efficient units, especially foreign-made ones, are more expensive.

If you cannot afford condensing-type heating devices, you can purchase a cheap domestic boiler with low fuel consumption.

A heating gas boiler is a device that, by means of the combustion of fuel (natural or liquefied gas), heats the coolant.

The device (design) of a gas boiler: burner, heat exchanger, thermally insulated housing, hydraulic unit, as well as safety and control devices. Such gas-fired boilers require a chimney to be connected to remove combustion products. The chimney can be either a conventional vertical or coaxial (“pipe in pipe”) for boilers with a closed combustion chamber. Many modern boilers equipped with built-in pumps for forced circulation of water.

The principle of operation of a gas boiler- the heat carrier, passing through the heat exchanger, heats up and then circulates through the heating system, giving off the received thermal energy through radiators, underfloor heating, heated towel rails, and also providing water heating in an indirect heating boiler (if it is connected to a gas boiler).

Heat exchanger - a metal container in which the coolant (water or antifreeze) is heated - can be made of steel, cast iron, copper, etc. The reliability and durability of a gas boiler depends on the quality of the heat exchanger in the first place. Cast iron heat exchangers are resistant to corrosion and have a long service life, but are sensitive to sudden temperature changes and are quite heavy. Steel containers can suffer from rust, so their internal surfaces are protected with various anti-corrosion coatings that prolong the “life” of the device. Steel heat exchangers are the most common in the manufacture of boilers. Corrosion is not terrible for copper heat exchangers, and due to the high heat transfer coefficient, low weight and dimensions, such heat exchangers are often used in wall boilers, but of the minuses, it should be noted that they are more expensive than steel ones.
In addition to the heat exchanger, an important part of gas boilers is a burner, which can be various kinds: atmospheric or fan, single-stage or two-stage, with smooth modulation, double.

To control the gas boiler, automation is used with various settings and functions (for example, a weather-compensated control system), as well as devices for programming operation and remote control of the boiler.

The main technical characteristics of gas heating boilers are: power, number of heating circuits, type of fuel, type of combustion chamber, burner type, installation method, pump and expansion tank, boiler control automation.

To determine required power gas heating boiler for private country house or an apartment, a simple formula is used - 1 kW of boiler power for heating 10 m 2 of a well-insulated room with a ceiling height of up to 3 m. the gas boiler output must be increased. It is also necessary to increase the power (about 20-50%) when providing a gas boiler and hot water supply (especially if water heating in the pool is necessary).

Features of calculating the power of gas boilers: nominal pressure gas at which the boiler operates at 100% of the capacity declared by the manufacturer, for most boilers is from 13 to 20 mbar, and the actual pressure in gas networks in Russia can be 10 mbar, and sometimes even lower. Accordingly, a gas boiler often works only at 2/3 of its capacity, and this must be taken into account when calculating. In more detail with a table for calculating the power of a heating boiler, you can

Most gas boilers can switch from natural gas to LPG(ballooned propane). Many models switch to liquefied gas at the factory (check these characteristics of the model when purchasing), or nozzles (jets) are additionally supplied to the gas boiler to switch to bottled gas.

Pros and cons of gas boilers:

Boiler piping- These are devices for the full operation of the heating and water supply system. It includes: pumps, expansion tanks, filters (if necessary), manifolds, check and safety valves, air valves, valves, etc. You will also need to purchase radiators, connecting pipes and valves, thermostats, a boiler, etc. The issue of choosing a boiler is quite serious, so the selection of equipment and its complete package it is better to entrust professionals.

What is the best boiler? The Russian market of gas boiler equipment has its own leaders in quality and reliability. The best manufacturers and brands of gas boilers are presented in the assortment:

"Premium" or "Lux"- the most reliable and durable, easy to manage, the kit is assembled as a "constructor", more expensive than the others. These manufacturers include German companies

Heating private houses with gas is the most cost-effective in our country. Therefore, one of the main elements of the heating system is a gas boiler. The best option for heating living space with a total area of ​​​​80-900 square meters. m will be the installation of an underfloor heat source. On the market, the consumer is offered models of various domestic and foreign manufacturers. They differ not only in price, but also in important technical parameters.

• According to functionality, all gas boilers can be divided into single-circuit and double-circuit ones. The former are used exclusively for space heating. Models with two circuits are able not only to provide heat to the heating system, but also to heat water for the kitchen and bathroom. Despite a number of advantages of boilers with two circuits, experts do not recommend installing them in homes where bathrooms and kitchens are far from the boiler room.
• Gas boilers differ in the way they are controlled. Mechanical models are easier to maintain and repair, and electronic control allows you to achieve maximum comfort with complete non-interference in the work of residents of the house.
• Structurally, condensing and convection boilers are distinguished. In convection models, the coolant is heated solely due to the heat released during gas combustion. With this classical scheme for obtaining thermal energy, large losses occur. Much higher coefficient of performance (COP) have modern condensing boilers. In them, in addition to energy from the combustion of gas, heat is generated from water vapor, which are released during the combustion process. Water vapor is condensed in an additional heat exchanger, which ultimately allows saving up to 20% of hydrocarbon feedstock.

We offer you a selection of the best floor-mounted gas boilers, which is compiled on the basis of technical characteristics, cost, consumer reviews and expert opinions.

The best gas boilers for heating an area up to 100-150 sq. m.

Ideally, the power indicator of the unit should be determined on the basis of thermal imaging diagnostics, but in practice it is calculated from the average value, based on the calculation of 1–1.5 kW for each square meter. It is not worth choosing a gas boiler with overestimated parameters - a low load level leads to a decrease in efficiency and increased wear of mechanical parts. This category includes equipment suitable for operation in small, up to 100-150 sq. m., residential and non-residential buildings.

3 ATON Atmo 10EBM

The best choice for residents of the villages. Most compact dimensions
Country Ukraine
Average price: 17,600 rubles.
Rating (2019): 4.2

In the CIS countries, gas is supplied at a lower pressure than in Europe, moreover, due to the high degree of wear on the mains, accidents often occur. With a critical pressure drop, foreign equipment, designed for an indicator of 20 mbar, starts to work at a third of its capabilities or stops altogether. That is why residents of small settlements, where this problem is most relevant, prefer to buy inexpensive boilers adapted to local gas supply conditions. These include ATON Atmo 10EBM, ready to heat a house with the declared power even at 13 mbar.

More importantly, the device does not require connection to the mains and operates under conditions of natural circulation of the coolant in the circuit due to the difference in density between cold and hot water. Model 10EBM is double-circuit and provides instantaneous heating of water up to 45 °, which makes it suitable for sanitary purposes. The unit belongs to the economy class, so from the elements of safety and comfort it provides only a non-volatile gas sensor, a draft sensor and a built-in thermometer. It is also distinguished by small dimensions (760x380x385 mm), efficiency (fuel consumption is 1.2 m 3 / hour) and attractive appearance.

2 Lemax Premium-10

Minimum fuel consumption. Italian components
Country Russia
Average price: 16,500 rubles.
Rating (2019): 4.5

The Taganrog company Lemax has been engaged in floor gas boilers for over 20 years, and since March 2018 it has launched another plant for the production of heating radiators. Her products attracted consumer attention affordable price and cost savings. Thus, a single-circuit unit from the Premium series with a heat output of 10 kW consumes on average 0.6 m 3 /h of fuel, which is approximately 30–50% better than its counterparts. Nevertheless, reviews of the first products were very restrained, many complained about poor-quality automation and gas burner units (GGU).

In the design of gas boilers "Lemax" of a modern sample, components are used European production- GGU from the famous Italian concern SIT and Polidoro microtorch burner. The same equipment is installed by popular foreign manufacturers, for example, Ariston. After the reconstruction, the opinion of buyers immediately improved, because for little money they were offered a non-volatile and economical device with auto-ignition, protection against overheating, blowing and soot formation, as well as with a 3-year warranty and a 14-year service life.

1 Kiturami STSG 13 GAS

High level of security. The most convenient to use
Country: South Korea
Average price: 41,000 rubles.
Rating (2019): 5.0

All gas boilers of the STSG line are considered the best in terms of reliability and safety, and the 13th, the youngest model, is no exception. The maximum area on which it can provide efficient heating, according to the documents, is 150 square meters. m., however, experts recommend leaving a margin of safety of 10-20%. The stainless steel body, welded using the special Kiturami technology, is designed for long-term (at least 10 years) operation in a humid oceanic climate. The device is two-circuit, equipped separate heat exchangers and is able to heat water in the DHW circuit up to 80 °, and the coolant - up to 85.

The unit is controlled automatically, the kit includes a remote thermostat that can be installed both nearby and in any room, for example, in a nursery. Accordingly, the boiler can be configured in one of two modes with reading the temperature of either the coolant or the air in the room. Among other functions that allow you to set the optimal operating mode for a day or a week without human intervention - “Delayed start”, “Freeze protection”, “Intervals”, etc. Safe operation is ensured by the advanced self-diagnosis function, and the closed combustion chamber and forced draft allow install a gas boiler indoors without expensive vertical chimney equipment.

The best gas boilers for heating an area up to 200-300 sq. m.

With an increase in the heated space, the problem of saving gas fuel becomes more acute. To ensure low heating costs, when choosing a boiler, you need to pay attention not only to power, but also to its efficiency. For some models from this rating (they work on the condensation principle), it exceeds 100%. Such data were obtained according to domestic calculation standards, and according to the European methodology, their real efficiency is approximately 95%. Accordingly, in order to get an idea of ​​the real efficiency of simple floor-standing gas boilers, the calculated efficiency should be reduced by 12–15%.

5 Teplodar Kupper OK 20

Ability to work on several types of fuel. Built-in heater
Country Russia
Average price: 23,400 rubles.
Rating (2019): 4.2

Many Russian settlements are waiting for the gas pipeline to be connected, and the only heating alternative available to its residents for some time is the installation of a heating system based on a solid fuel boiler. The Teplodar company has developed a universal design - the Kupper OK 20 model, capable of working both on wood, pellets and coal, and on natural gas. It is possible to transfer the unit from one type of fuel to another using the optional Teplodar burners. Thus, the same boiler can be used as the main source of heat on solid fuel, or as a backup - in areas with unreliable gas supply.

The basic kit includes a block of 3 heating elements with a power of 2 kW. It is impossible to heat the house with them on an ongoing basis; their task is to maintain the coolant in the event of a complete burnout of the fuel or in an emergency. Another feature of the device is the possibility of retrofitting an external control and a capacitive hydraulic separator. These elements perfectly balance the heating system, improve controllability to the level of mono-fuel boilers and extend the service life, but at the same time increase the cost of boiler equipment by more than 2 times.

4 Protherm Bear 40 KLOM

The most popular gas boiler
Country: Slovakia
Average price: 60 350 rubles.
Rating (2019): 4.5

The most popular floor gas boiler today is the representative of Slovakia Protherm Medved 40 KLOM. This is a single-loop model of the convection type. Its thermal power reaches 35 kW with an efficiency of 90%. One of the reasons for the high popularity was the possibility of using liquefied gas. The device is equipped with such modern options as protection against freezing and overheating, self-diagnosis, constant control over the combustion process, flame modulation.

Consumers flatter about the reliability, ease of operation, compactness and durability of the device. With all these qualities of a "smart boiler", it remains the most affordable for domestic consumers.

3 Baxi SLIM 2.300 i

The best gas boiler with built-in boiler
Country: Italy
Average price: 107,500 rubles.
Rating (2019): 4.7

The Italian gas boiler Baxi SLIM 2.300 i has a built-in boiler with a capacity of 50 liters. Thanks to this design, there will always be a sufficient supply of hot water in the house. The security system includes a closed combustion chamber, protection against overheating and freezing, from blocking the pump, there is a draft sensor. The boiler can also be operated from liquefied gas. Additionally, it can be equipped with a timer and remote control. The double-circuit convection boiler is adapted to Russian conditions.

Consumers note the versatility of the boiler, its efficiency, ease of installation, the ability to work on liquefied gas. The main disadvantage is the high cost.

2 De Dietrich DTG X 23 N

Optimal economic performance. Cast iron heat exchanger
Country: France
Average price: 76,000 rubles.
Rating (2019): 4.8

The oldest brand in Europe, De Ditrisch, is 334 years old. During this time, it developed into an industrial empire for the production of automobile, railway and heating equipment. Gas boilers of this brand are invariably associated by consumers with reliability, unpretentiousness in operation, as well as minimal energy consumption: for heating a house of 200 sq. m model DTG X 23 N will need only 2.7 m 3 / hour of natural gas and about 2.0 - liquefied. Its other advantages include simplicity of design, low noise level during operation and simple maintenance.

The heat exchanger is made of high-quality eutectic cast iron (the company is known as a global metallurgical manufacturer), has an optimal configuration of heat transfer fins, due to which it is distinguished by high efficiency and corrosion resistance. Due to the plasticity of the walls of the heat exchanger, there is no need to control the temperature in the return circuit, and the boiler can be used for heating with underfloor heating. For safety reasons, a draft sensor and an overheating protection system are provided, and from the comfort elements there is an auto-ignition and an on indicator.

1 Vaillant ecoVIT VKK INT 366

Best efficiency
Country: Germany
Average price: 144,500 rubles.
Rating (2019): 4.9

The gas boiler from Germany Vaillant ecoVIT VKK INT 366 has the highest efficiency, which is 109%! At the same time, the device produces 34 kW of energy, which allows you to heat a house up to 340 square meters. The German specialists achieved the maximum result from gas combustion through the use of a modulating burner, flame control, conservation of latent heat of condensation, a multi-sensor control system, an information and analytical center, electronic ignition, etc.

Consumers highly appreciated such qualities of this single-circuit boiler as functionality, reliability, stylish appearance. It is worth noting that electronics are very sensitive to voltage drops in the mains. Therefore, it is necessary to additionally install a voltage stabilizer in the house.

The best high power gas boilers

IN apartment buildings, hotels and large (from 400 to 600 sq.m.) cottages, when there is a need to heat not only the room space, but also the pool, gym, winter Garden and other heat-intensive objects, it is most rational to install a heating system based on several single-circuit or double-circuit gas boilers with a capacity of at least 50 – 60 kW. When choosing, special attention should be paid to the range of automatic settings, the capabilities of control systems and the timely adjustment of the operating mode.

4 Leberg Eco Line FBS 60G

original heat exchanger. Excellent efficiency and safety performance
A country: Norway (produced in Russia)
Average price: 46,900 rubles.
Rating (2019): 4.3

The heat exchanger of the gas boiler of the Eco Line series from the Norwegian company Leberg has an original patented design. It is made of cold rolled steel 3.5 mm thick. Above the combustion chamber, surrounded by a water jacket, tubes with a diameter of 40 mm are located in a checkerboard pattern at an angle to circulate the coolant. To improve energy efficiency, the heat exchanger is enclosed in 2 thermal insulation layers of mineral wool and heat-reflecting foil. Thus, an efficiency of 90% was ensured and high level operational safety.

The single-circuit device is the simplest and most inexpensive of the entire range of high-power household units, while it is equipped with components proven by many years of practice: Polidoro or Bray burners, Sit automation, built-in Imit thermometer. Adjustment and maintenance of the set parameters is provided by a built-in thermostat controlled by a rotary knob. The design is non-volatile and is in demand in regions with problematic power supply. The consumption of main gas is relatively small (6 m 3 / hour), if necessary, you can transfer the gas boiler to work with liquefied fuel.

3 Navien GST-60KN

The best smoke extraction system. Built-in frost and surge protection
Country: South Korea
Average price: 92,000 rubles.
Rating (2019): 4.8

Floor boilers of this brand are double-circuit and are able to provide a sufficient amount (from 20 to 34 l / min., depending on the temperature) of hot water, including in the absence of a need for heating. The unit is fully adapted to Russian operating conditions:

• maintains stable operation at an inlet pressure of 4 mbar gas and 0.3 bar water;
• protected from power surges within ± 30% by a built-in chip;
• prevents freezing of the system by automatically turning on the burner and starting the circulation pump;
• equipped with a fan and allows smoke to be removed both into the chimney and through the wall.

You can set a comfortable heating mode using the included remote control with built-in temperature sensor and LCD screen. This is especially convenient when the boiler room is located in the basement of the house. The correct operation is monitored by the self-diagnostic system, which, in the event of critical sensor readings, blocks the operation of the boiler and displays an error code on the display. Wide functionality, high-quality components, excellent specifications, chic design and international certification - it is no coincidence that Navien equipment is considered one of the best.

2 Buderus Logano G234-60

Condensing principle of operation. Service life over 20 years
A country: Germany (produced in South Korea)
Average price: 144,000 rubles.
Rating (2019): 4.8

The main qualities of the floor gas boiler Buderus Logano G234-60 are stability and efficiency. They receive additional energy in the process of forced condensation of water vapor generated during combustion, and reduce energy consumption by up to 30%. Significant savings are also provided by fully automatic operation with electric ignition, which does not require additional gas consumption, 80 mm thick thermal insulation, which reduces heat losses to a minimum, and continuously adjustable boiler water temperature.

To meet all needs, optional expansion of the configuration with Logamatic automatic control systems and Logalux water heaters is possible. Additional noise suppression measures are not required. No need to worry about the emission of harmful substances either - the device has been awarded the Blue Angel eco-label by the German Federal Ministry for the Environment. To summarize, it is difficult to find a floor boiler that is more perfect and functional than Buderus.

1 ACV HeatMaster 70TC

The most multifunctional
Country: Belgium
Average price: 740,000 rubles.
Rating (2019): 4.9

The Belgian boiler ACV HeatMaster 70 TC, having the maximum configuration, has the highest cost. This double-circuit condensing unit with a power of 68 kW has the highest efficiency (109%). Due to the maximum absorption of heat in heating and hot water modes, the model is recognized by experts as the best in the world. When creating a gas boiler, the manufacturer has introduced a number of innovative approaches. This includes tank-in-tank technology, modulating pre-mix burner, and weather-compensated automatic system security.

Those owners of private houses who could afford the installation of such a boiler note the incredible efficiency of work, the absence of noise during combustion, high performance and complete safety.