TOP 20 best gas boilers: 2024-2025 ranking by price / quality
This rating includes gas boilers for heating a private house, which are simple and economical in everyday life.This option is suitable for those whose dwelling is not connected to a common heating and hot water supply system. Gas boilers can be installed both in high-rise buildings and in rooms with a small area. Despite the popularity of gas boilers, almost everyone does not know how to choose and what to pay attention to when purchasing.
Rating of the best gas boilers 2024-2025
| Place | Name | Price | Rating |
|---|---|---|---|
| The best gas boilers by price / quality for 2024-2025 | |||
| 1 | Buderus Logamax U072-28K | Ask for a price | 4.9 / 5 |
| 2 | Mizudo M24TK | Ask for a price | 4.8 / 5 |
| 3 | BAXI SLIM EF 1.22 | Ask for a price | 4.7 / 5 |
| 4 | Lemax Premium-25N | Ask for a price | 4.6 / 5 |
| The best single-circuit gas boilers for heating | |||
| 1 | Protherm Bear 20 KLOM | Ask for a price | 4.9 / 5 |
| 2 | Buderus Logamax U072-24, | Ask for a price | 4.8 / 5 |
| 3 | BAXI SLIM 1.230 iN | Ask for a price | 4.7 / 5 |
| 4 | Lemax Premium-12.5N | Ask for a price | 4.6 / 5 |
| The best double-circuit gas boilers | |||
| 1 | Lemax Premium-30B | Ask for a price | 4.9 / 5 |
| 2 | Protherm Bear 20 KLZ | Ask for a price | 4.8 / 5 |
| 3 | BAXI SLIM 2.300Fi | Ask for a price | 4.7 / 5 |
| The best condensing gas boilers | |||
| 1 | Buderus Logamax plus GB172-30 iK | Ask for a price | 4.9 / 5 |
| 2 | Bosch Condens GC7000iW 20/28 C | Ask for a price | 4.8 / 5 |
| 3 | Viessmann Vitodens 050-W BPJC | Ask for a price | 4.7 / 5 |
| The best gas boilers for heating at 24 kW | |||
| 1 | BAXI ECO-4s 24F | Ask for a price | 4.9 / 5 |
| 2 | Bosch Gaz 6000 W WBN 6000-24 N | Ask for a price | 4.8 / 5 |
| 3 | Buderus Logamax U052-24K | Ask for a price | 4.7 / 5 |
|
The best inexpensive gas boilers for heating |
|||
| 1 | Lemax Gazovik AOGV-6 | Ask for a price | 4.9 / 5 |
| 2 | Signal S-TERM 12.5 | Ask for a price | 4.8 / 5 |
| 3 | Arderia B18 | Ask for a price | 4.7 / 5 |
Content
- Rating of the best gas boilers 2024-2025
- How to choose a gas boiler for heating a private house?
- The best gas boilers for heating by price / quality for 2024-2025
- The best single-circuit gas boilers for heating
- The best double-circuit gas boilers
- The best condensing gas boilers
- The best gas boilers for heating at 24 kW
- The best inexpensive gas boilers for heating
- Which firm to choose?
- Useful video
How to choose a gas boiler for heating a private house?
The following indicators must be taken into account:
- Power.
- type of combustion chamber.
- The presence of contours.
- Type of gas boiler installation.
- Functionality.
When choosing gas equipment, we pay attention to what power the boiler is suitable for a given room. Very often, consumers, choosing a gas boiler, do not pay attention to performance. Thus, it turns out that they will acquire a more powerful boiler than is necessary for the house where it will work.
To select a boiler, consumers use average values, on average, 1 kW of heat is allegedly required for a 10 m2 room, but this is an approximate figure. The choice of boiler power is always based on the calculation of the heat loss of the building that will heat the boiler.
The best gas boilers for heating by price / quality for 2024-2025
This category presents the best gas boilers for heating a private house in 2024-2025, which not only have excellent technical characteristics, but also differ from many others in high reliability and reasonable cost.
1. Buderus Logamax U072-28K
Buderus Logamax U072-28K automatic type with a power of 28 kW is designed for heating 280 m2. High-quality heating equipment that can work reliably in mid-latitude conditions. A distinctive feature of the boiler is a fan and a modulated type burner. With their help, you can conveniently change the power of the device in accordance with the requirements of the heating system, which significantly increases efficiency.
On the decorative lining of the boiler there is a magnetic overlay, on which there is a reminder icon, how to adjust and change the temperature of the heating system and hot water preparation, how to switch the boiler to summer mode. When using an uninterruptible power supply, it will work even when the power is turned off. This is useful when it is necessary to protect the system from defrosting in winter, or simply to keep heat and hot water running.
Specifications
- Thermal energy - 8.40-28 kW
- Thermal load - 9.30-31 kW
pros:
- Suitable for any room.
- Compact dimensions.
- Light.
- Undemanding to voltage fluctuations.
- Type of electronic ignition.
- The presence of a modulated fan.
- Ease of maintenance.
- Ease of temperature control.
Minuses:
- High price.
2.Mizudo M24TK
The built-in innovative system for monitoring the parameters of the MIZUDO boiler constantly monitors the performance of the boiler, informs the user about possible interruptions in operation and the need for timely maintenance. The boiler has 2 modes of operation - for radiators or for underfloor heating - and can operate in economy mode. The difference in the temperature of the heated water, supply and purification of water is regulated.
A filter is installed for the incoming cold water. There is a daily programmer, as well as a timer for heating the coolant. The boiler provides high performance hot water. Optimizing the heating temperature reduces energy costs. The equipment is equipped with a protection system: from exceeding the maximum water temperature in the heating system, from boiling the heating water and electronic protection against reducing the pressure of the heating water - the boiler turns off when the coolant pressure drops to 0.5 bar.
Specifications
- Thermal energy - 8.20-24 kW
- Thermal load - 9.60-24 kW
- Dimensions - 403x693x247 mm
pros:
- Beautiful.
- Quiet.
- Low cost.
- Good security.
- Economical.
Minuses:
- Not identified.
3. BAXI SLIM EF 1.22
Baxi SLIM EF 1.22 outdoor with atmospheric burner (single-circuit). Equipped with an atmospheric burner and made of cast iron. The ruler is distinguished by a safety function: if the flame goes out, the gas valve closes automatically. Therefore, there is no need for watering. It is controlled mechanically, which means that the main parameters can only be adjusted manually.Baxi's warranty period is two years from the date the device was put into operation, but no more than 30 months from the date the device was sold. Regular maintenance is carried out at the expense of the client or is included in the cost of the equipment maintenance contract.
Specifications
- Maximum heating power - 22 kW
- Efficiency - 88%
- Dimensions - 400x850x595 mm
pros:
- Ease of operation and reliable operation at a reasonable cost.
- Ease of installation.
- Safety and economy.
- Work on liquefied gas.
Minuses:
- Not found.
4. Lemax Premium-25N
Steel gas boiler Lemax premium 25N is a strong, safe and durable device for connecting autonomous heating in rooms for various purposes. The case is made of steel 2 mm thick. The enamel coated heat exchanger is treated with an inhibitory composition, protected from corrosion and overheating. The top panel is removable for ease of maintenance and cleaning of the boiler.
On the forward panel the regulator of temperature and the thermometer is located. Maximum efficiency by increasing the heat exchange area and using an innovative turbulator design for maximum exhaust gas retention. Soft start system providing acoustic comfort when starting the boiler Simple maintenance of the boiler thanks to the use of an easily removable top panel.
Specifications
- Maximum thermal power - 25 kW
- Heated room - 250 sq.m.
pros:
- Price.
- Soft start system.
- Easy to use.
Minuses:
- Not found.
The best single-circuit gas boilers for heating
This category presents the best models that have proven themselves only from the best side.
1. Protherm Bear 20 KLOM
Protherm Bear 20 KLOM automatic type with a power of 17 kW for heating 170 m2. Gas stationary heating boiler. The power of the device is regulated by a modulating burner. The heat exchanger consists of several cast iron profiles.
There is an electronic ignition and flame control system. The average efficiency indicator for the heating season is 92%. Possibility of control of a boiler for preparation of hot water. Natural or forced flue gas exhaust type. Permanent freezing function and anti-cyclic function.
Control device functions using the display and buttons. The automatic diagnostic function consists in displaying the status codes of the boiler operation. The presence of a pressure gauge is a display of pressure indicators in the heating system. The use of turbocharging to remove combustion products through the outer walls. Control of boiler temperature sensor and boiler pump for hot water.
Specifications
- Thermal energy - 12-17 kW
- Efficiency - 92%
- Dimensions – 335x880x600 mm
- Weight - 90 kg
pros:
- High build quality and exquisite design.
- Safety of use - built-in sensors block the gas and inform the user about the problem.
- Autonomy of work - requires minimal human intervention.
- Design variability.
- The use of high-quality parts and assemblies that guarantee a long working life.
Minuses:
- Price.
2. Buderus Logamax U072-24
Buderus Logamax U072-24 have a design that differs little from the device of most similar units. The main element is a closed gas burner, which heats the coolant in a copper primary heat exchanger. The hot coolant leaving it enters the secondary plate type heat exchanger, where hot water is prepared. Has electronic control, is equipped with the display.
Specifications
- Thermal energy - 7.20-24 kW
- Dimensions - 400x700x299 mm
pros:
- The ability to simultaneously heat the room and prepare hot water for domestic needs.
- Compact, can be installed in kitchens without the need for a boiler room.
- Relatively low price.
- The self-diagnosis system will immediately inform you of any problems.
Minuses:
- Dependence on availability and quality of power supply.
- Some units have low resistance to mechanical stress.
3. BAXI SLIM 1.230 iN
BAXI SLIM 1.230 in is a floor standing gas boiler with a cast iron heat exchanger and natural flue gas discharge into an existing chimney. Modern design and small overall dimensions will facilitate the placement of the boiler in any room. Two ranges of temperature control in the heating system. Built-in weather-compensated automation. Adjustment and automatic maintenance of the set temperature in the heating circuit. Adjustment and automatic maintenance of the set temperature in the boiler. The draft sensor is a thermostat to control the safe removal of combustion products.
Specifications
- Thermal energy - 11.80-22.10 kW
- Thermal load -13.50-24.50 kW
- Dimensions – 350x850x600 mm
- Weight - 103 kg
pros:
- stainless steel gas burner;
- quality of materials and assembly;
- compact dimensions.
Minuses:
- dependence on the electrical network 220 V.
4. Lemax Premium-12.5N
The Lemax Premium-12.5N model is installed on the floor in accordance with all the necessary edging from the walls. To obtain the declared power of 12.5 kW, the pressure of natural gas must be at the level of 13 mbar, a decrease in these parameters will lead to a decrease in thermal energy. The convection type of equipment involves the generation of heat from the combustion of gas fuel, while the boiler runs on natural gas. Improved protection system against overheating of the heat exchanger, draft break, soot formation, boiler blowdown. Ease of maintenance of the boiler due to the use of an easily removable top panel.
Specifications:
- Maximum heating area - 125 m2
- Dimensions - 416x744x491 mm
- Weight - 60 kg
pros:
- There is a thermometer.
- An external control connection is possible.
- It is possible to install a burner with a turbocharger.
- Economical operation and simple operation.
- Affordable price.
Minuses:
- Not found.
The best double-circuit gas boilers
The design of double-circuit boilers has everything you need for heating and hot water supply. There are models in this category that combine safety, reliability and optimal performance. The top double-circuit gas boilers for a private house include the following models:
1. Lemax Premium-30B
The steel gas boiler Lemax Premium-30B is designed to create autonomous heating in rooms and houses. The device has a durable steel case with removable facing elements. It is treated with an inhibitory composition and has protection against overheating.
The boiler with a microtorch burner operates on natural or liquefied gas (after reconfiguration). The device can be cleaned by simply removing the front panel. The coolant overheating protection shuts off the burner if an abnormal water temperature is detected.
Specifications:
- Power - 30 kW
- Maximum heating area - 300 m2
- Dimensions – 556x961x470 mm
- Weight - 88 kg
pros:
- price;
- quality and performance;
- compact;
- efficient in operation;
- simple and convenient control.
Minuses:
- Not found.
2. Protherm Bear 20 KLZ
Protherm Bear KLZ is the simplest solution for those who do not want to worry not only about heat, but also about the availability of hot water. Outdoor boilers with a cast-iron heat exchanger have a built-in boiler with a volume of 90 liters. It has electronic control and is equipped with a display. It is intended for heating of country houses, cottages and other rooms. Able to heat an area up to 350 m2. In double-circuit installations, it is possible to heat water without additional equipment according to the flow principle. This boiler is double boiler. This is a modern, reliable equipment that has a 24-month warranty (EV) and meets all safety requirements.
Specifications
- Thermal energy - 12.10-17 kW
- Thermal load - 13-18.50 kW
- Dimensions - 505x1385x730 mm
- Weight - 140 kg
pros:
- two-stage power adjustment;
- compact dimensions;
- high efficiency;
- maximum security;
- does not require a chimney.
Minuses:
- not found.
3. BAXI SLIM 2.300Fi
Outdoor gas boiler with cast iron heat exchanger. The thin-walled boiler is equipped with all the necessary controls and devices that provide the necessary protection during operation. Floor boilers made of cast iron are supplied by an Italian brand.
The models are adapted to Russian operating conditions, are equipped with atmospheric burners and are characterized by a power of 15-62 kW. The equipment is made in a two-chamber single-circuit format, has all the controls, security, including devices for automatically shutting down boilers in the absence of gas. Models are compact, suitable for enclosed spaces, equipped with electronic automatic diagnostic capabilities that identify ten possible types of faults.
The line includes boilers with closed chambers, suitable for operation if it is not possible to arrange a chimney. Gas savings are achieved by continuously modulating the fire rather than by stepwise switching. Control and automatic maintenance of the set temperature in the boiler (for models with a built-in or separate boiler). Electronic temperature indication.
Specifications
- Thermal energy - 14.90-29.70 kW
- Thermal load - 17-33 kW
- Dimensions – 350x850x680 mm
- Weight - 126 kg
pros:
- reliable;
- separate pump and expansion tank;
- the minimum temperature is 30 degrees, it is easy to adjust.
Minuses:
- no display;
- noisy ignition.
The best condensing gas boilers
Condensing gas boilers differ from conventional boilers in increased productivity and power, which are successfully combined with economical fuel consumption.
1. Buderus Logamax plus GB172-30 iK
Buderus Logamax Plus GB172-30 iK is characterized by high performance and reduced power consumption. A new model from the titanium product line has been awarded Class A certification in accordance with the European ERP certification system. Massive glass facade, large touch screen. There are no minor innovations hidden inside the boiler: an improved heat exchanger with a 10-year warranty; Smart component layout for secure orientation and optimized maintenance and installation times various sensors and nodes that allow you to work effectively with renewable energy sources. The condensing boiler has a power of 30 kW and is designed for heating and hot water systems. It is already equipped with an energy-saving hydraulic unit. The black color of the glass front makes it modern and striking. It can easily become part of a completely different interior. Due to its compact dimensions and low weight, this boiler can be quickly installed in any room.
Specifications
- Thermal energy - 4.20-30 kW
- Efficiency - 109%
- Dimensions – 440x840x350 mm
- Weight - 52 kg
pros:
- Full control - the weather-dependent control system will not only increase the level of comfort and save up to 10% of energy, but also allow you to control the boiler via the Internet.
- High Energy Efficiency - Thanks to the wb5 aluminum and silicon alloy heat exchanger and high efficiency modulating pump, the gas-fired power plant has energy class A.
Minuses:
- Not found.
2. Bosch Condens GC7000iW 20/28 C
Bosch GC7000iW 20/28 C is a double-circuit gas boiler that allows you to simultaneously organize a heating system in the house and a hot water supply system. The device has a fairly compact size and modern design, so it can be installed in any living room (bathroom or kitchen) without completely damaging its interior. Stylish, economical and multifunctional.
Efficient operation is monitored by various sensors, there is protection against overheating, freezing and dry start. A special technology allows you to control the tightness of the closing of the gas valve. The circulation pump has an energy saving function. The boiler has the ability to connect a warm floor. The only downside is the price.
Specifications
- Thermal energy - 3.80-20.50 kW
- Dimensions – 440x840x360 mm
pros:
- Acid-resistant silumin heat exchanger.
- Built-in heating pump with the ability to work in economy mode.
- Indication of errors and malfunctions.
- No required minimum flow of circulating water.
Minuses:
- Not found.
3. Viessmann Vitodens 050-W BPJC
Vitodens 050W type BPJC is small, highly efficient and environmentally friendly as well as quiet in operation. The dimensions of the boiler are very small, for such a model it is easy to allocate space even in the kitchen.The condensing boiler uses not only the heat released by direct combustion of the gas, but also the latent heat contained in the steam products. As a result, the efficiency of the boiler can reach 108%.
The cylindrical burner of the boiler, which supports modulation in range 1, also helps to save fuel. If the boiler does not require a high load, the burner will be able to consume significantly less gas. Made of stainless steel, durable and acid-resistant.
The boiler is equipped with an 8 liter expansion tank and an energy efficient circulation pump, as well as the necessary accessories and safety devices. The boiler has a closed combustion chamber, for supply air and exhaust gases, it can be equipped with a coaxial chimney with a diameter of 100 mm.
Specifications
- Max. thermal power - 24 kW
- Efficiency - 97.1%
- Dimensions — t400x707x350 mm
- Weight - 35 kg
pros:
- The optimum ratio of price and quality.
- Durability and efficiency.
- Easy operation with controller with LED display and touch buttons.
- Low noise level.
Minuses:
- Not found.
The best gas boilers for heating at 24 kW
The review considers the characteristics of the best models of single-circuit gas units with a closed combustion chamber, which have high performance when supplying heat and hot water to rooms up to 200 m2.
1. BAXI ECO-4s 24F
Baxi ECO4S 24 F is an inexpensive household appliance equipped with separate heat exchangers: the primary one is made of copper and has a special anti-corrosion coating, and a stainless steel plate is used for the hot water system.The boiler control interface is also convenient, with the help of which the table displays complete information about the operating parameters, as well as self-diagnosis data.
It is designed to run on natural gas, but if required, it can also run on liquefied fuel. The temperature of the coolant is regulated using a built-in thermometer, but for economical use of fuel, it is also possible to install an external one, which is responsible for reading the outside temperature. A three-way valve is responsible for the safety of operation, which, together with the pump, provides protection against blockages.
Specifications
- Thermal energy - 9.30-24 kW
- Thermal load - 10.60-25.80 kW
- Dimensions - 400x730x299 mm
- Weight - 30 kg
pros:
- High quality units.
- Fully automatic operating mode.
- Availability of self-diagnostic systems.
- Almost silent operation.
Minuses:
- The need for regular paid maintenance.
- Water softeners must be used.
2. Bosch Gaz 6000 W WBN 6000-24 H
The Bosch boiler is used for heating systems. The area on which the boiler is able to provide a high level of thermal comfort reaches 350 square meters. The unit develops a maximum power of 24 kW for heating and 24 kW for hot water. Removal of combustion products is carried out by a coaxial chimney using a fan.
The device allows you to install a channel separator or remove combustion products through a system of separate chimneys. Combustion products are removed by coaxial smoke extraction. In the case of separate smoke exhaust through a system with a diameter of 80 mm. The weight of the device is 30 kg.Light weight was achieved by reducing metal consumption. The hydraulic group is made of plastic.
Specifications
- Thermal energy - 7.20-24 kW
- Thermal load - 8-26. 70 kW
- Weight - 30 kg
pros:
- Reliability, high efficiency and stable performance.
- Low noise level.
- Economical gas consumption.
Minuses:
- Poor organization of maintenance.
- High cost of spare parts.
3. Buderus Logamax U052-24K
This boiler belongs to models with a closed chamber and with forced removal of combustion products (such boilers are often called turbocharged). The presented model has a power of 24 kW and is equipped with a copper bithermic heat exchanger. The warranty for the device is 2 years from the date of sale. There is an electronic flame modulation. You can assign control over indoor comfort with weather-dependent automation. These boilers are aimed at consumers who want to create a modern heating system in their home with separate temperature control in different directions. The model range is intended for use in residential buildings.
Specifications
- Thermal energy - 9.80-24 kW
- Thermal load - 11.20-26.20 kW
- Dimensions – 400x735x360 mm
- Weight - 41.5 kg
pros:
- Reliable performance.
- Quiet, almost inaudible.
- Floor heating available.
- Economical gas consumption.
Minuses:
- Very expensive foreign-made boiler.
- Doesn't work without electricity.
The best inexpensive gas boilers for heating
Finding a model suitable for any budget is not difficult, and installing such a device will significantly save on heating.
1. Lemax Gazovik AOGV-6
The floor-standing boiler Lemax AOGV-6 Gasovik is equipped with modern automation and an Italian-made burner. This is a non-volatile gas hot water model with removable lining and profile elements for seamless integration into the interior and ease of maintenance. Thanks to the coating with CERTA anti-corrosion enamel (exposure temperature 750°C) and treatment with an inhibitory composition, the heat exchanger is protected from aggressive factors: saline solutions, mineral oils. Works in closed systems with working pressure up to 1 atm.
Specifications:
- Max. thermal power - 6 kW
- Heated room - 50 sq.m.
- Dimensions - 282x685x473 mm
- Weight - 31 kg
pros:
- Does not require connection to the mains.
- Ease of cleaning the boiler thanks to the use of a removable top panel.
- Stylish new design.
- The warranty is 3 years.
Minuses:
- Not found.
2. Signal S-TERM 12.5
S-TERM 12.5V (KOV-12.5 SKVS) is a double-circuit hot water boiler designed for hot water supply and space heating up to 125 m2. If you want to purchase efficient and high-quality heating equipment at an affordable price, then you should choose this device.
This is a modern single-circuit boiler with an open combustion chamber, which uses imported components and modern technologies. Equipped with Italian automatic system eurosit 630, low noise Polidoro burner, new type pilot burner. The source of thermal EMF is a thermocouple.
Adapted for Russian heating systems. They are easy to install and operate, service components are available in all regions of Russia.The compact dimensions of the device allow it to be installed in small spaces. Thanks to reliable protection and control systems, you can be sure of the safe operation of the device.
Specifications:
- Max. thermal power - 12.50 kW
- Efficiency - 90%
- Dimensions – 260x690x470 mm
- Weight - 40 kg
pros:
- independence from connection to the mains;
- the cost of equipment and repairs is much lower than that of foreign analogues;
- the use of imported components - automation and burners, which makes the system more productive and stable.
Minuses:
- there is no self-diagnostic system that would alert the owner to any problems.
3. Arderia B18
This is a wall-mounted gas boiler with a closed combustion chamber, designed for heating and hot water supply. The area of the heated room is from 53 to 250 m2. Produced at our own production in Russia.
They combine efficiency, high quality and reliability. The boiler is economical and simple. The operation of the facility is aimed at the production of heating and hot water. There is a self-diagnosis function, in case of internal malfunctions, the device beeps and displays an error code. Another advantage of the model is the low noise level. It is possible to connect a room thermostat. The device is equipped with a two-thermal double-circuit heat exchanger.
Specifications
- Thermal energy - 4.20-18 kW
- Efficiency—90%
- Dimensions - 420x652x243 mm
pros:
- Automatic electric ignition.
- The boilers are adapted to Russian conditions.
- Temperature control.
- Control and security.
Minuses:
- Not found.
Which firm to choose?
Among the manufacturers of gas boilers, European, Asian and Russian companies have proven themselves. You can choose, for example, the German manufacturer Buderus, the Italian brand Ariston or the Japanese Rinnai. Of the Russian firms, it is worth noting Lemax, which collects positive customer reviews. One of the main requirements for gas equipment, including heating boilers, is safety. All well-known manufacturers attach special importance to this.
We tried to briefly tell you which option is better to choose, how to choose the right modern and efficient gas boiler for heating in a private house. Before making a decision, we recommend consulting with experts. Gas is a source of increased danger.
Useful video
In this video, you will get an overview of the best gas boilers:
