TOP-20 of the best double-circuit wall-mounted gas boilers: 2024-2025 rating by price / quality

Gas boilers are by far the most convenient way to heat any room.To simplify the search for the right device, we analyzed the models presented in online stores, studied their functionality and features, got acquainted with the technical characteristics and reviews of the owners. Below is a ranking of the best, high-quality and reliable double-circuit wall-mounted gas boilers for 2024-2025, grouped by the most popular request categories.

Rating of the best double-circuit wall-mounted gas boilers

Place	Name	Price	Rating
The best double-circuit wall-mounted gas boilers for price / quality for 2024-2025
1	Buderus Logamax U072-35K	Ask for a price	4.9 / 5
2	Viessmann Vitopend 100-W A1JB011	Ask for a price	4.8 / 5
3	BAXI ECO-4s 18F	Ask for a price	4.7 / 5
The best double-circuit convection wall-mounted gas boilers
1	Buderus Logamax U052-24K	Ask for a price	4.9 / 5
2	BAXI ECO-4s 24F	Ask for a price	4.8 / 5
3	BaltGaz Turbo E 18	Ask for a price	4.7 / 5
The best double-circuit condensing wall-mounted gas boilers
1	Buderus Logamax plus GB172-30 iK	Ask for a price	4.9 / 5
2	Mizudo M24TK	Ask for a price	4.8 / 5
3	Bosch Condens GC7000iW 20/28 C	Ask for a price	4.7 / 5
The best double-circuit wall-mounted gas boilers 24 kW
1	Mizudo M24T	Ask for a price	4.9 / 5
2	Navien DELUXE COMFORT 24K	Ask for a price	4.8 / 5
3	BaltGaz Turbo E 24	Ask for a price	4.7 / 5
The best double-circuit wall-mounted gas boilers with a closed combustion chamber
1	BAXI LUNA-3 310Fi	Ask for a price	4.9 / 5
2	Buderus Logamax U072-28K	Ask for a price	4.8 / 5
3	Ariston ALTEAS X 30FF NG	Ask for a price	4.7 / 5
The best single-circuit wall-mounted gas boilers
1	Bosch Gaz 6000 W WBN 6000-18 H	Ask for a price	4.9 / 5
2	Buderus Logamax U072-24	Ask for a price	4.8 / 5
3	Protherm Panther 25 KTO	Ask for a price	4.7 / 5
The best inexpensive double-circuit wall-mounted gas boilers
1	Navien Deluxe S COAXIAL-24k	Ask for a price	4.9 / 5
2	Neva Lux 7210	Ask for a price	4.8 / 5

How to choose a double-circuit wall-mounted gas boiler?

Often the question arises before the buyer, which boiler to buy? What is better wall or floor equipment?

In order not to make a mistake with the choice, the following criteria are taken into account:

• Boiler type. Can be floor and wall. Wall-mounted boilers are smaller than their counterparts and are better suited for heating an apartment or residential building, since they do not need a boiler room.
• Thermal power. On average, 1 kW of power of the device is able to warm up about 8 m2. Calculate the total area you need to heat and divide by 8 to get the required number.Add another 1 kW for water heating. At the same time, one should not forget about additional parameters when calculating: the thickness of the walls, their material, the quantity and quality of windows and doors, the presence of an attic, etc.
• contours. Gas mounted boilers are single-circuit and double-circuit. Single-circuit only heat the room, and double-circuit in addition to this heat the water. The cost of dual-circuit models will be only 10-15 percent higher.
• Combustion chamber type. May be open or closed. In boilers with an open chamber, air will be taken from the room where the boiler is located, so there must be a chimney where it is located.
• Principle of operation. Convection boilers are ordinary appliances that accumulate thermal energy by burning gas in a combustion chamber. Some of the heat is lost. The condensing type is more expensive and advanced, with an additional heat exchanger that accumulates the heat of condensate from the exhaust gases. At the same time, the temperature of the latter is very low, and the energy accumulated by the additional heat exchanger is spent on heating the return line.
• Ignition method. Ignition can be carried out manually or using built-in elements. The first method is more affordable and easier, and the second is more economical. The downside of the second will be the dependence on the availability of electricity.

The best double-circuit wall-mounted gas boilers for price / quality for 2024-2025

1. Buderus Logamax U072-35K

We present a powerful double-circuit gas boiler from one of the most reliable manufacturers. This is perhaps the most iconic model of the 2015 lineup.The device is distinguished by an impressive value of useful thermal power (35 kW), medium dimensions, an understandable and simple control system and a significant efficiency.

The manufacturer presents it as an apparatus of the middle price category, which is used to create a structure for heating and hot water supply in private houses, apartments and office premises with a total area of ​​up to 280 m2. Stylish and eye-catching design, along with compactness, will allow the boiler to blend into any room. The closed combustion chamber and forced smoke exhaust system allows the appliance to work with a relatively simple coaxial chimney system and is safe for installation in residential areas. Also, a closed chamber allows you to install the device directly in residential areas without harm to others.

This model calmly tolerates moderate voltage drops in the electrical network and remains operational even at reduced gas pressure. The device is controlled electronically, so you will not need to constantly monitor its operation. The downside can be a shutdown during sudden surges in electricity.

Specifications

• type of heating boiler: gas, convection;
• thermal output: 12.20 – 35 kW
• combustion chamber: closed;
• control: electronic;

2. Viessmann Vitopend 100-W A1JB011

Consider another double-circuit wall-mounted gas boiler, included in the TOP of the best. This is the 2017 model, which is in the middle price category.A closed combustion chamber will allow you to install it in a residential area without interference for residents. The device is perfect for heating and hot water structures of a house or a large apartment with a total area of ​​up to 239 m2.

Stylish and pleasing to the eye design, along with compactness, will allow the boiler to blend into any interior. The device works almost silently, so it can be installed directly in the living room. A well and smoothly adjustable gas burner and a proprietary control system make the device economical to operate. The case has a screen that allows you to view the necessary parameters of the device. The boiler demonstrates good efficiency (91%) in the conditions of domestic gas and electric networks.

It also has several protective systems: automatic shutdown of gas when the flame goes out, protection against overheating and freezing, as well as blocking the pump. In cold weather, the boiler warms up itself from time to time so that there is no breakdown. The model is perfectly adapted for operation in conditions of moderate fluctuations in gas pressure and voltage. In the event of sudden fluctuations, a trip may occur.

Specifications

• type of heating boiler: gas, convection;
• Max. thermal performance: 29.90 kW;
• Efficiency: 91%;
• Management: electronic;

3. BAXI ECO-4s 18F

Double-circuit gas boiler of medium power for wall mounting. It is distinguished by its small size, low noise level and reasonable cost for its parameters.The device is equipped with a closed-type combustion chamber and forced exhaust gases, which allows it to be installed within residential areas without harm to residents. Useful thermal power - 18 kW, it can warm up a small house or apartment up to 144 m2.

The electronic control system, which is equipped with an informative display, is convenient and intuitive for the user. The boiler works with a remote thermostat and a programmable timer. It is perfectly adapted to the peculiarities of domestic gas networks and is equipped with numerous security systems: flame, pressure and water temperature control.

It can be used at very low temperatures as it has frost protection, warming up periodically to prevent breakage. Stylish and pleasing to the eye design, along with compactness, will allow the boiler to blend into any interior.

Specifications

• type of heating boiler: gas, convection;
• thermal performance: 9.30 - 18 kW;
• thermal load: 10.60 - 20 kW;
• Efficiency: 92.5%;
• control: electronic;

The best double-circuit convection wall-mounted gas boilers

1. Buderus Logamax U052-24K

A model of a double-circuit gas boiler suitable for domestic conditions. The device is notable for a fairly good useful thermal power (24 kW), moderate housing sizes, an understandable and convenient control system, as well as high efficiency (more than 90%) in domestic conditions of use.The manufacturer presents it as a medium-price device designed for heating and hot water supply systems in houses, apartments and other premises with a total area of ​​up to 280 m2.

Stylish and pleasing to the eye design, along with compactness, will allow the boiler to blend into any interior. Ignition method - auto ignition. The electronic control system allows you to save fuel and does not require your constant presence. Thanks to the use of a closed combustion chamber and a forced smoke extraction system, it works with a simple chimney system and is safe for installation in residential areas.

This model tolerates moderate voltage fluctuations in the electrical network and is able to function stably even with reduced gas pressure. Separately, it is worth noting the protection against freezing and overheating, which allows the use of the device in any season. Special sensors measure the temperature of the coolant, and if it drops, the boiler turns on for a short time.

Specifications

• type of heating boiler: gas convection;
• thermal performance: 9.80 - 24 kW;
• heat load: 11.20 - 26.20 kW;
• Efficiency: 90.03%;
• control: electronic;

2. BAXI ECO-4s 24F

Double-circuit gas boiler for wall installation. It is small in size and low noise. Stylish and pleasing to the eye design, along with compactness, will allow the boiler to blend into any interior.The device has a closed-type combustion chamber and forcibly removes gases, which allows it to be installed in residential and working premises without harm and danger to people.

Useful thermal power is not bad - 25 kW, this is enough to heat a small house or city apartment. The electronic control system, which is equipped with an informative screen with the necessary parameters about the device, is simple and intuitive to the buyer. The boiler works with a remote thermostat and a programmable timer. It is perfectly adapted to the peculiarities of domestic conditions of use and is equipped with numerous protections, including reliable control of the flame, pressure and water temperature.

It can be used at very low temperatures, as it has sensors for measuring the temperature of the coolant. When lowering, the boiler will automatically turn on for a short time to warm up. Another feature of the model is that it functions well even when the gas pressure drops to 5 mbar.

Specifications

• type of heating boiler: gas, convection;
• thermal performance: 9.30 - 24 kW;
• thermal load: 10.60 - 25.80 kW;
• Efficiency: 92.9%;
• control: electronic;

3. BaltGaz Turbo E 18

An energy-efficient model of a small-sized wall-mounted gas boiler that can be used at any time of the year.It has the function of programming work for the week ahead, and overheating protection allows you to safely leave it unattended. Stylish and eye-catching design along with compactness will allow the boiler to fit into the interior of any room.

The functionality of the device has several modes: Winter connects heating and hot water, Summer leaves only hot water supply working, and Warm floors optimally regulates the temperature of the coolant, which avoids overheating. Eco mode allows you to save gas by operating the machine. There is a display on the case, where all the necessary information on the operation of the device is displayed.

The heat exchanger here is made of copper, which is an example of an environmentally friendly material. The anti-freeze function allows you to use the device even at low temperatures, you will definitely not be left without heating in winter. Temperature sensors will help you understand if the coolant is too cold, and the device will briefly turn on to warm up. The hourly and weekly programmer allows you to set the order in which the appliance is turned on and off.

Specifications

• type of heating boiler: gas;
• combustion chamber type: closed;
• power type: single-phase;
• control: electronic;

The best double-circuit condensing wall-mounted gas boilers

1. Buderus Logamax plus GB172-30 iK

A productive energy-efficient wall-mounted gas boiler from a well-known manufacturer, which will perfectly cover the needs of a family of 3-5 people.The manufacturer presents it as a product of the upper price category, designed for heating private houses, large multi-room apartments, office or other premises. Stylish and eye-catching design along with compactness will allow the boiler to fit into the interior of any room.

Useful maximum thermal power can reach 30 kW, which will help to warm up the area up to 240 square meters. m. The main advantage of this model over other double-circuit gas boilers is energy efficiency. With a useful power similar to other appliances, you will significantly save gas.

The special design provides additional cooling of the combustion products and makes it possible to use the latent heat of condensation of water vapor present in hot flue gases. Water heats up quickly, you can warm up to 12 liters per minute, provided that it is heated at 35 degrees.

Specifications

• type of heating boiler: gas, condensing;
• thermal performance: 4.20 - 30 kW;
• combustion chamber: closed;
• Efficiency: 109%;
• control: electronic;

2.Mizudo M24TK

Gas wall-mounted boiler at an affordable price. It will easily fit in small spaces due to its compact size. Stylish and eye-catching design along with compactness will allow the boiler to fit into the interior of any room.

On its body there is a color display, which will prompt the main parameters of operation and the state of the device.The heat exchanger and burner are made of stainless steel, a material with high thermal conductivity. "Noise support" during the operation of the boiler is quite low, up to 32 dB, it will not interfere even if it is mounted in the kitchen. It is possible to set a timer for heating the coolant, and there is also a daily programmer. The boiler provides high temperature and speed of water heating.

Another plus will be free access to the nodes of the device, which will greatly facilitate its repair. In the event of a malfunction, the boiler can carry out a self-diagnosis and show the cause on the screen. The safety of the device is well thought out, there is protection against overheating, smoke removal and automatic air removal. The device allows you to connect a room thermostat, a remote temperature sensor, a Wi-Fi module, as well as a cascade controller. A filter is built in for cold water.

Specifications

• type of heating boiler: gas, condensing;
• thermal performance: 4.80 - 24 kW;
• thermal load: 5.30 - 24 kW;
• heated area: 160 sq.m;
• Efficiency: 95%;
• control: electronic;

3. Bosch Condens GC7000iW 20/28C

Double-circuit wall-mounted gas boiler of condensing type with an additional heat exchanger. Thanks to its dimensions, the device fits perfectly into any room. The eye-catching design along with compactness will allow the boiler to fit into the interior of any room.

In the conditions of domestic networks, it gives an efficiency of 90%, so it can be recommended as suitable for use.At a temperature of 30 degrees, the boiler can heat up to 11.8 l / min of hot water. The flame of the burner is smoothly adjustable, which will make it possible to change the intensity of the gas supply, subtracting and adding it, which can help reduce consumption. The model is controlled electronically, it has an informative display on the body, which shows the main characteristics.

The disadvantage of this system may be that it sometimes fails during sudden power surges. The pressure gauge shows what pressure is inside the coolant, this avoids excess and breakdowns. Separately, it must be said about the device protection system: there is a gas control (gas automatically stops flowing when the flame goes out), a system for removing excess air, protection of the coolant from freezing (self-activated when the temperature drops), a safety valve that protects against pressure increase, and protection of the coolant from overheating.

Specifications

• type of heating boiler: gas, condensing;
• thermal performance: 3.80 - 20.50 kW;
• Max. thermal load: 28.70 kW;
• control: electronic;

The best double-circuit wall-mounted gas boilers 24 kW

1.Mizudo M24T

Gas wall hung boiler with good performance and proven safety system. Simple and pleasant design along with compactness will allow the boiler to fit into the interior of any room.The "noise" of the device is quite low, the values ​​​​can reach as little as 32 dB. The manufacturer has provided the ability to set a timer for heating the coolant, as well as daily programming. The boiler provides high temperature and speed of water heating.

Another plus will be free access to the nodes of the device, which will greatly facilitate its repair. In the event of a malfunction, the boiler can carry out a self-diagnosis and show the cause on the screen. The safety of the device is well thought out, there is protection against overheating, smoke removal and automatic air removal.

The device allows you to connect a room thermostat, a remote temperature sensor, a Wi-Fi module, as well as a cascade controller. A filter is built in for cold water. After an hour of operation in the DHW system, the boiler will automatically switch to heating mode. Another advantage will be protection against boiling water and from exceeding the maximum temperature.

Specifications

• type of heating boiler: gas, convection;
• thermal performance: 8.20 - 24 kW;
• thermal load: 9.60 - 24 kW;
• Efficiency: 90.5%;
• control: electronic;

2. Navien DELUXE COMFORT 24K

Another model of a wall-mounted double-circuit gas boiler. Its small size helps it to successfully fit into even the smallest space. The model is mounted on the wall, which also significantly saves space in the room.Simple and pleasant design along with compactness will allow the boiler to fit into the interior of any room.

The closed combustion chamber allows to place the device directly in living quarters. In domestic networks, the efficiency will be about 91%, which is very good and quite suitable for our places. The model is controlled electronically, on its body there is a display that displays basic information on the operation.

The advantage of the electronic system is that it is undemanding to your constant supervision, and the main disadvantage is that it often fails during sudden power surges. The security system is a little worse here, but there is gas control here, that is, the suspension of the gas supply when the flame goes out. The device can work autonomously in case of a power outage, which will allow you not to freeze the system in winter or simply save hot water and heating.

Specifications

• type: gas;
• thermal performance: 8 - 24 kW;
• heated area: 240 sq.m;
• Efficiency 91.4%;
• control: electronic;

3. BaltGaz Turbo E 24

An energy-efficient model of a small-sized wall-mounted gas boiler that can be used at any time of the year. Simple and pleasant design along with compactness will allow the boiler to fit into the interior of any room. It has the function of programming work for the week ahead, and overheating protection allows you to safely leave it unattended.

The functionality of the device has a Heated floors mode, which allows you to optimally regulate the temperature of the coolant in order to avoid overheating. Eco mode will help to reduce gas consumption by controlling the power of the device. There is a display on the case, where the main information on the operation of the device is displayed.

The heat exchanger here is made of copper, which is an example of an environmentally friendly material. The anti-freeze function allows you to use the device even at low temperatures, you will definitely not be left without heating in winter. The boiler will turn on automatically for a short time when cooling down to warm up and eliminate the possibility of a breakdown. The hourly and weekly programmer allows you to set the order in which the appliance is turned on and off.

Specifications

• type of heating boiler: gas, convection;
• thermal performance: 9 - 24 kW;
• heated area: 240 sq.m;
• Efficiency: 92%;
• control: electronic;

The best double-circuit wall-mounted gas boilers with a closed combustion chamber

1. BAXI LUNA-3 310Fi

Double-circuit gas boiler of automatic type. Simple and pleasant design along with compactness will allow the boiler to fit into the interior of any room. Its installation is made on the wall, which will save space. The efficiency of the drive when working in domestic networks will reach 93%, which makes the device suitable for use in our realities.

This is a convection-type device, that is, it generates heat from the combustion of gas fuel. Auto ignition will allow you to start and stop the device according to the algorithm in order to save gas. The regulation of the burner flame allows you to change the intensity of the gas supply, which also makes the device more ergonomic. The control system here is electronic, its plus is the absence of the need for constant monitoring of the functioning.

The downside is some instability during sudden surges in electricity. The thermometer and pressure gauge show the temperature and pressure of the water in the coolant to avoid overheating and breakdowns. The protection system here is very good: gas control (turning off the gas when the electricity is turned off), a safety valve, an air vent to remove excess air, frost protection (periodic switching on of the device during a long downtime and lowering the temperature in it to avoid breakdowns), overheating and blocking the pump .

Specifications

• type of heating boiler: gas, convection;
• thermal performance: 10.40 - 31 kW;
• heat load: 11.90 - 33.30 kW;
• heated area: 310 sq.m;
• Efficiency: 93.1%;
• control: electronic;

2. Buderus Logamax U072-28K

Powerful double-circuit gas boiler from one of the largest manufacturers. This is perhaps one of the most functional models of the Logamax U072 line. Simple and pleasant design along with compactness will allow the boiler to fit into the interior of any room.The device is distinguished by a good value of useful thermal power (28 kW), as well as the average dimensions of the case.

The control system will be understandable and simple, and the efficiency in the conditions of domestic networks will be high (92%). The manufacturer presents it as a product of the middle price category, intended for the organization of heating and hot water supply in private houses, apartments and office premises. The boiler is connected by auto-ignition.

Thanks to the use of a closed combustion chamber and a forced smoke extraction system, it can operate with a simple coaxial chimney system and is safe to install in residential buildings without endangering residents. This model tolerates small voltage drops in the network well and is able to work stably even with reduced gas pressure.

There is an indicator on the case that shows if the device is working. It can be used in the cold season, as it has frost protection in the form of temperature sensors that "notice" the cooling of the coolant. After that, the boiler will turn on by itself for a short time to prevent the system from freezing.

Specifications

• type of heating boiler: gas, convection;
• thermal performance: 8.40 - 28 kW;
• heat load: 9.30 - 31 kW;
• Efficiency: 92%;
• Management: electronic;

3. Ariston ALTEAS X 30FF NG

Convection wall-mounted gas double-circuit boiler of a well-known brand. It is mounted on the wall, which helps to save space in the room.Simple and pleasant design along with compactness will allow the boiler to fit into the interior of any room.

In the conditions of domestic networks, the device has an efficiency of up to 94%. Convection allows the generation of heat by burning fuel, which is gas. Burner flame regulation allows you to switch the intensity and helps save gas. Auto ignition turns the burner on and off when it is necessary according to the algorithm.

On the body of the device there is a display and a connector for connecting additional devices (thermostats, remote control, programmers). The device is controlled electronically, so it does not require constant monitoring of the operation. Sometimes failures are possible due to sudden power surges. Of the protection systems, there is a gas control that allows you to stop the gas supply when the flame goes out, a safety valve that protects against excessive water pressure, removing excess air, as well as protection against freezing and overheating of the coolant.

Specifications

• type of heating boiler: gas, convection;
• thermal performance: 13 - 30 kW;
• heat load: 14.40 - 33.30 kW;
• Efficiency: 93.8%;
• control: electronic;

The best single-circuit wall-mounted gas boilers

1. Bosch Gaz 6000 W WBN 6000-18 H

Single-circuit wall-mounted gas boiler, which is one of the younger models of its family. Thanks to its dimensions, the device fits perfectly into any room.Simple and pleasant design along with compactness will allow the boiler to fit into the interior of any room.

In the conditions of domestic networks, it gives good efficiency, and its performance does not suffer from sudden voltage surges. It works almost silently and is resistant to freezing. Adjusting the flame of the burner will allow you to smoothly change the intensity of the supply, decreasing and adding it, which can help reduce gas consumption.

The model is controlled electronically, it has an informative display on the body, which shows the main characteristics. Separately, it must be said about the device protection system: there is a gas control (gas automatically stops flowing when the flame goes out), a system for removing excess air, a safety valve for pressure protection. The manufacturer presents the device as a mid-range product. The closed combustion chamber allows you to install the device directly in residential premises.

Specifications

• type of heating boiler: gas, convection;
• thermal performance: 5.40 - 18 kW;
• thermal load: 6 - 20 kW;
• heated area: 180 sq.m;
• control: electronic;

2. Buderus Logamax U072-24

A powerful wall-mounted gas boiler that saves a lot of space thanks to its installation. Simple and pleasant design along with compactness will allow the boiler to fit into the interior of any room.

This is one of the most interesting models in the Logamax line.The device is distinguished by a good value of useful thermal power (28 kW), medium overall dimensions of the case, a clear and simple control system, as well as high efficiency (92%) in domestic networks. The manufacturer presents his product of the middle price category, designed for organizing heating and hot water supply in houses, apartments and other premises with an area of ​​110-240 sq.m.

The boiler is connected by auto-ignition. Thanks to the use of a closed combustion chamber and a forced smoke extraction system, it works with a relatively simple chimney system and is safe to install in a room or kitchen. This model tolerates moderate voltage drops in the electrical network and is able to maintain stable operation at reduced gas pressure. There is an indicator on the case that shows if the device is working. It can be used in the cold season, as it has frost protection. Temperature sensors mark its decrease, then the boiler turns on itself for a while in order to prevent the system from completely cooling down.

Specifications

• type of heating boiler: gas, convection;
• thermal performance: 7.20 - 24 kW;
• thermal load: 8 - 26.70 kW;
• Efficiency: 92%;
• control: electronic;

3. Protherm Panther 25 KTO

Single-circuit gas wall-mounted boiler. Its dimensions are small, and the possibility of mounting it on the wall will free up even more space in the room.Simple and pleasant design along with compactness will allow the boiler to fit into the interior of any room.

The closed type of the combustion chamber will allow you to place the device even directly in the living room. In domestic networks, its efficiency will be 90%, which will be a very good indicator. Heat is generated from the combustion of gas. Electric ignition or auto ignition allows you to turn the burner on and off according to the algorithm. The regulation of the burner flame allows you to reduce or increase the flow rate and save gas.

The device is controlled electronically. On its body there is a display with information about the state of the boiler. The protection here is impressive: gas control, which allows you to stop the gas supply when the flame goes out, a safety valve against excessive water pressure, removal of excess air, as well as protection against freezing and overheating of the coolant and pump blocking, which turns on when the boiler is idle for a long time. In the event of a decrease in the temperature of the coolant, the boiler starts automatically to warm up the system.

Specifications

• type of heating boiler: gas, convection;
• thermal performance: 8.40 - 25 kW;
• thermal load: 9.40 - 27.10 kW;
• heated area: 250 sq.m;
• control: electronic;

The best inexpensive double-circuit wall-mounted gas boilers

1. Navien Deluxe S COAXIAL-24k

A budget double-circuit wall-mounted gas boiler that will easily fit into even the smallest room due to its size. Wall mounting also saves a lot of space in the room.Simple and pleasant design along with compactness will allow the boiler to fit into the interior of any room.

In domestic conditions, the efficiency will be about 91%, so the device can be safely taken for heating water or space heating. It is equipped with a display that displays all the necessary information, and is controlled electronically. This system is economical and does not require your constant presence, but on the other hand it is more vulnerable to power surges. The pressure gauge shows the pressure inside the coolant to avoid excess and breakdowns.

The boiler has a good protection system: there is a gas control (automatic shutdown of the gas when the flame goes out), a safety valve that protects against rising water pressure, protection against freezing and overheating, as well as protection against blocking the pump, which is activated if the equipment has not been operating for a long time . The boiler sometimes turns on automatically for a while to warm up the system.

Specifications

• type of heating boiler: gas, convection;
• thermal performance: 8-24 kW;
• heated area: 240 sq.m;
• Efficiency: 91.4%;
• Management: electronic;

2. Neva Lux 7210

A double-circuit boiler of a budget class that can easily fit even in the smallest room. The closed type of the chamber with the forced removal of combustion products will allow you to hang it directly in the living room without harm to the residents. Simple and pleasant design along with compactness will allow the boiler to fit into the interior of any room.

The model is controlled electronically, on its body there is an informative ergonomic display. Electronic control allows the user to pay less attention to the device, but on the other hand, it cannot always protect against voltage surges. Lightweight lid and fold-down sidewalls provide the opportunity for repair of the product. Silent operation will be another plus for those who place the device directly in the house or apartment.

The heating and hot water circuit and pipes are made of copper, which significantly increases their thermal conductivity. The choice of protective functions here is smaller, but impressive for its segment: gas control, which automatically turns off the gas supply when the flame goes out, an air vent and a fuse that protects against rising water pressure.

Specifications

• type of heating boiler: gas;
• thermal performance: 8.90 - 10 kW;
• heated area: 100 sq.m;
• Efficiency: 91%;
• control: electronic;

Which firm to choose?

Reliability and long service life are distinguished by units manufactured by companies: Ariston, Baxi, Ferroli, Bosch, Viessmann, Protherm, GAZLUX, Conord, Lemax are also not bad.

Conclusion

You can choose a double-circuit wall-mounted gas boiler if you pay attention to the characteristics and criteria that you need. If you decide for what purpose and what power of the device you need, then the search will not be long, and the result in the form of a purchase will bring pleasure from long-term use.

Useful video

In this video, you will get acquainted with the rating of the best double-circuit wall-mounted gas boilers: