TOP 15 best Vaillant gas boilers: rating 2024-2025 + which wall and floor model to choose
Vaillant gas boilers are manufactured by the Vaillant Group, headquartered in Remstein in the Federal Republic of Germany.
The company is recognized as the world leader in the production of heating equipment and has been operating on the market for over 145 years.
The equipment manufactured by the Vaillant Group is environmentally friendly and high-tech.
Rating of the TOP 15 best Vaillant gas boilers
| Place | Name | Price |
|---|---|---|
| TOP 3 best Vaillant gas boilers in price / quality ratio | ||
| 1 | Vaillant turbo FIT VUW 242/5-2 23.7 kW | Ask for a price |
| 2 | Vaillant turboTEC plus VU 242/5-5 24 kW | Ask for a price |
| 3 | Vaillant turboTEC pro VUW 242/5-3 24 kW | Ask for a price |
| TOP 3 best double-circuit gas boilers Vaillant | ||
| 1 | Vaillant turbo TEC plus VUW INT 242/5-5 24 kW | Ask for a price |
| 2 | Vaillant atmoTEC pro VUW 240/5-3 24 kW | Ask for a price |
| 3 | Vaillant turboTEC plus VUW INT 202/5-5 19.7 kW | Ask for a price |
| TOP 3 best single-circuit gas boilers Vailliant | ||
| 1 | Vailliant turbo TEC plus VU 282/5-5 28.9 kW | Ask for a price |
| 2 | Vailliant turbo TEC plus VU 202/5-5 19.7 kW | Ask for a price |
| 3 | Vailliant ecoTEC plus VU INT IV 346/5-5 30 kW | Ask for a price |
| TOP 3 best Vaillant wall-mounted gas boilers | ||
| 1 | Vaillant atmoTEC plus VU 240/5-5 24 kW | Ask for a price |
| 2 | Vaillant atmoTEC plus VUW 240/5-5 24 kW | Ask for a price |
| 3 | Vaillant atmoTEC plus VUW 280/5-5 27.8 kW | Ask for a price |
| TOP 3 best Vaillant floor standing gas boilers | ||
| 1 | Vaillant atmo VIT VK INT 324/1-5 31.5 kW | Ask for a price |
| 2 | Vaillant atmoVIT VK INT 564/1-5 56 kW | Ask for a price |
| 3 | Vaillant atmoVIT VK INT 141/1-5 41 kW | Ask for a price |
Content
- Rating of the TOP 15 best Vaillant gas boilers
- Types of Vaillant gas boilers
- The best Vaillant gas boilers in terms of price / quality ratio
- The best double-circuit gas boilers Vaillant
- The best single-circuit gas boilers Vailliant
- The best wall-mounted gas boilers Vaillant
- The best floor standing gas boilers Vaillant
- How to choose the power of a gas boiler
- Customer Reviews
- Useful video
Types of Vaillant gas boilers
The range of gas boilers manufactured by Vaillant Group can be divided into the following groups:
By the number of circuits:
- Single loop VU . There is one heat exchanger dedicated to heating only. To get hot water, you need to connect a boiler.
- Double circuit VUW. The operation of the heating system and the hot water circuit is ensured.
For the removal of combustion products:
- Turbo Tec. Wall-mounted boilers with a closed combustion chamber and a forced exhaust system for combustion products (coaxial chimney).
- Atmospheric Atmo TEC. The combustion chamber is open, it is required to mount them near the chimney on the basis of natural draft.
- Eco TEC condensing boilers. This is a special group of boilers that use the heat of flue gas vapor, which improves efficiency and reduces fuel consumption.
By installation method:
- Floor boilers. They have increased power (16 - 57 kW), a lot of weight due to the cast-iron heat exchanger. Suitable for heating a large house.
- Wall mounted boilers. Compact, light weight, easy to fit into any interior. Do not require a separate room.
The best Vaillant gas boilers in terms of price / quality ratio
Vaillant turbo FIT VUW 242/5-2 23.7 kW
A wall-mounted double-circuit gas boiler of a turbocharged type provides heating 
rooms up to 230 sq.m, as well as hot water in flow mode.
The compact device, which weighs 36 kg, is well attached to the wall and does not require installation in a separate room.
There is a three-way diverter valve, a built-in pump that improves circulation in the heating system.
Boiler control is electronic, status data is displayed on the display.
Turning the heating on and off is possible without turning off the hot water supply.
If necessary, heating can be set to partial power, 70-90% of the maximum.
This allows you to reduce fuel consumption. The boiler runs on natural and liquefied gas.
Specifications:
- Thermal power range 9.70 - 23.70 kW.
- Productivity of hot water is 12 l/min.
- Thermal load range 11.0 - 25.3.
- Electronically controlled.
pros
- Compact size;
- can be installed in a residential area;
- status control on the LCD display with error codes;
- there is frost protection.
Minuses
- the need for a voltage stabilizer.
Vaillant turboTEC plus VU 242/5-5 24 kW
A single-circuit wall-mounted gas boiler is intended only for heating an area up to 
240 sq.m.
A water heater is required to provide hot water.
To improve operation, a circulation pump with automatic switching and blocking protection is built in, a closed expansion tank with a volume of 10 liters.
Works on natural and liquefied gas.
The safety of work is ensured by gas control, as well as a safety valve and an air vent.
Frost and overheating protection functions. The package includes a manometer and a thermometer.
Specifications:
- Useful heat output range 8.0 – 24.0 kW
- .Nominal thermal load 26.70 kW.
- Coaxial chimney.
- Electronic control.
pros
- possibility of installation in a residential area;
- aesthetic appearance;
- ease of installation and maintenance;
- protection against jamming of the pump and valve.
Minuses
- the need for additional connection of a water heater for domestic hot water.
Vaillant turboTEC pro VUW 242/5-3 24 kW
Wall-mounted two-phase gas boiler for heating and hot water supply. Camera 
combustion closed.
Electronic control with the possibility of connecting an external control. Heating area 240 sq.m.
This is a budget version of the boiler. To increase the safety of use, there is a gas control function, a safety valve.
Built-in circulation pump. Installed protection against blocking the pump and protection against overheating and freezing.
Annual maintenance recommended. It can work on natural and liquefied gas.
Specifications:
- Thermal power range 8.0 - 24.0 kW.
- heat load range 9.40 – 26.70 kW
- Electronic control
- Liquid crystal display.
pros
- the possibility of self-diagnosis;
- automatic ignition of the burner.
- frost protection;
- aesthetic appearance.
Minuses
- the need for a voltage stabilizer.
The best double-circuit gas boilers Vaillant
When installing boilers with a DHW function, it is necessary to monitor the quality of the water and take measures to reduce hardness to reduce the formation of scale.
Vaillant turbo TEC plus VUW INT 242/5-5 24 kW
Gas heating boiler of convection type in international design. Square heating 240 sq.m.
The combustion chamber is closed, there is a function of auto-ignition, auto-diagnostics. Electronic control, LCD display with backlight.
Can run on natural and LPG. Flame modulation allows you to adjust the burner power depending on the heat consumption and save fuel consumption.
Installed protection against blocking the circulation pump, protection against overheating and freezing.
Specifications:
- Thermal power range 8.0 - 24.0 kW.
- Heat load range 9.40 - 26.70 kW.
- Expansion tank, 10.0 l
- Circulation pump.
pros
- the ability to connect external control;
- automatic ignition of the burner.
Minuses
- a voltage stabilizer or INP is required.
Vaillant atmoTEC pro VUW 240/5-3 24 kW
Gas double-circuit heating boiler of atmospheric type, made in a budget 
option.
Will heat the room with an area of 240 sq.m. A chimney is required, the removal of combustion products occurs naturally.
Open type combustion chamber, runs on liquefied and natural gas.
There is a built-in pump, protection against its blocking is installed. Auto ignition, flame modulation function allows you to reduce gas consumption.
Specifications:
- Thermal power in the range of 9.0 - 24.0 kW.
- Thermal load in the range of 10.70 - 26.70 kW.
- Electronic control.
- The volume of the expansion tank is 6.0 liters.
pros
- auto diagnostics;
- frost protection; from overheating:
- to increase the level of security there is a gas control, a safety valve.
Minuses
- can only be installed next to the chimney;
- installation in residential premises is undesirable;
Vaillant turboTEC plus VUW INT 202/5-5 19.7 kW
Gas wall-mounted turbocharged boiler in international design, with 
possibility of installation in a residential area.
The heating area is 200 sq.m. Water heating in flow mode is carried out by a built-in plate heat exchanger.
Electronic software control allows you to set the operating parameters, monitor the status of the equipment with data output to the backlit display.
In heating mode, it can be set to partial power, which reduces fuel consumption. The built-in pump improves circulation in system of heating.
Specifications:
- Thermal power range 6.10 - 19.70 kW.
- Heat load range 7.80 - 22.20 kW.
- Expansion tank with a volume of 10 l.
- Consumption of natural gas 2.40 cubic meters / hour; liquefied 1.71 kg/hour.
pros
- low noise level during operation;
- auto ignition, auto diagnostics;
- winter/summer switch, frost protection,
- the lowest price in the range.
Minuses
- a voltage stabilizer is required.
The best single-circuit gas boilers Vailliant
Vailliant turbo TEC plus VU 282/5-5 28.9 kW
Single-circuit gas boiler equipped with a quick start function. Thermal power 
allows you to heat a room up to 280 sq.m.
It can work on natural and liquefied gas, the combustion chamber is closed. Installation of a copper wall.
Electronic control, connection of external control is possible. Copper heat exchanger improves corrosion resistance.
There is a built-in pump to improve circulation, protection against its blocking is installed. There is a flame modulation function, auto-diagnostics.
The gas control system will turn off the gas supply when the burner flame goes out, which increases the safety of the boiler.
Specifications:
- Thermal power range 9.40 - 28.9 kW.
- Thermal load range 10.90 - 31.10 kV
- Consumption of natural gas 3.20 cubic meters / hour.
pros
- Aesthetic appearance;
- automatic ignition of the burner;
- protection against freezing and overheating;
Minuses
- Requires the use of a voltage stabilizer or PSI.
Vailliant turbo TEC plus VU 202/5-5 19.7 kW
Single-circuit gas boiler of turbocharged type with an additional function of fast 
launch.
Wall mounting, electronic control with data output on the display and the possibility of connecting an external control.
Heating area up to 190 sq.m. Can be used with both LPG and natural gas.
Closed combustion chamber, coaxial chimney is mounted.
Built-in circulation pump with blocking protection. Safety is ensured by the installation of gas control, a safety valve and an air vent.
Specifications:
- Thermal power in the range of 6.10 - 19.70 kW.
- Thermal load in the range of 7.80 - 22.20 kW.
- Expansion tank, volume 10 l.
- Consumption of natural gas 2.40 cubic meters/hour, liquefied gas 1.71 kg/hour.
pros
- auto diagnostics;
- flame modulation;
- auto ignition;
Minuses
- A voltage stabilizer or INP is required.
Vailliant ecoTEC plus VU INT IV 346/5-5 30 kW
The gas condensing boiler is particularly environmentally friendly. At work 
additionally, the heat of condensation of water vapor on the walls of the heat exchanger is used, which makes it possible to increase the efficiency of work and reduce fuel consumption.
Can heat up to 300 sq.m.
International version, wall mount. It is controlled by electronics with the output of information on the LCD display.
Autonomous operation is possible if a continuous power supply is used.
Built-in pump to improve water circulation in the system, protection against its blocking is installed.
Flame modulation saves gas.
Specifications:
- Thermal power range 5.80 - 30.0 kW.
- Thermal load in the range of 6.20 - 30.60 kW.
- Consumption of natural gas 3.70 cubic meters/hour, liquefied gas 2.70 kg/hour.
- Expansion tank, volume 10 l.
pros
- Increased efficiency;
- There are gas control, safety valve, air vent for safe operation.;
- Autodiagnostics; auto ignition;
Minuses
- High price.
The best wall-mounted gas boilers Vaillant
Vaillant atmoTEC plus VU 240/5-5 24 kW
Atmospheric single-circuit non-volatile gas boiler with an open chamber 
combustion.
Heated area 240 sq.m Can only be installed near the chimney. The safety of work is carried out by using the gas control function, installing a safety valve.
The modulating burner regulates the boiler output and saves fuel consumption.
Built-in pump improves circulation in the heating system. The equipment is controlled electronically, the data is displayed on a backlit display.
Combination with a water heater is possible.
Specifications:
- Thermal power range 9.0 - 24.0 kW.
- Heat load range 10.70 – 26.70 kW
- Expansion tank, volume 10 l.
- Consumption of natural gas 2.80 cubic meters/hour, liquefied gas 1.91 kg/hour.
pros
- connection of external control is possible;
- auto-diagnostics, automatic electric ignition;
- protection against freezing and overheating;
Minuses
- located only near the chimney;
Vaillant atmoTEC plus VUW 240/5-5 24 kW
Double-circuit atmospheric wall-mounted gas boiler with quick start function. Maybe 
heat a room of 240 sq.m.
The combustion chamber is open, the natural removal of combustion products into a conventional chimney. A pump is built in to improve circulation.
Electronics allows you to control and monitor the operation of the boiler, the data is displayed on a backlit display.
Hot water temperature can be adjusted.
Copper heat exchanger improves corrosion resistance. The boiler runs on natural and liquefied gas.
Specifications:
- Thermal output in the range 9.0 – 24.0 kW
- Thermal load in the range of 10.70 - 26.70 kW.
- Expansion tank, volume 10 l.
- Consumption of natural gas 2.80 cubic meters/hour, liquefied gas 1.91 kg/hour.
pros
- pressure control in the heating system;
- pump jamming protection;
- protection against freezing and overheating;
- auto ignition, burner flame modulation.
Minuses
- fixed installation site next to the chimney;
Vaillant atmoTEC plus VUW 280/5-5 27.8 kW
More powerful double-circuit atmospheric gas boiler with an open combustion chamber. 
Heating area 280 sq.m.
Can produce 13.4 l/min of hot water. Copper heat exchanger, light weight, good heat dissipation, corrosion resistant.
To improve circulation in the heating system, a pump with blockage protection is built in..
The flame modulation function regulates the boiler output depending on the air temperature and allows to reduce the gas consumption.
Specifications:
- Thermal power in the range of 10.50 - 27.80 kW.
- Thermal load 12.40 - 31.10 kW.
- Expansion tank, volume 10 l.
- Consumption of natural gas 3.30 cubic meters/hour, liquefied gas 2.36 kg/hour.
pros
- auto diagnostics, auto ignition,
- protection against freezing and overheating;
- the ability to connect external control;
- work safety.
Minuses
- open combustion chamber;
- you cannot change the installation location.
The best floor standing gas boilers Vaillant
Vaillant atmo VIT VK INT 324/1-5 31.5 kW
Atmospheric floor single-circuit gas boiler can heat an area of 310 sq.m.. 
It has a cast-iron heat exchanger block consisting of 5 sections, which significantly increases the heat output, but increases the weight and size of the equipment.
Mounted on height-adjustable legs.
Electronic control, data displayed.
There are functions of automatic ignition of the burner, automatic diagnostics, indication of inclusion. Safety is ensured by the installation of gas control.
Specifications:
- Thermal power 31.50 kW.
- Thermal load 34.80 kW.
- Open combustion chamber.
- Consumption of natural gas 3.60 cubic meters/hour, liquefied gas 2.60 kg/hour.
pros
- high level of efficiency;
- frost protection, overheating protection;
- cast iron heat exchanger can serve more than 30 years.
Minuses
- No built-in circulation pump; built-in expansion tank;
- Big weight.
Vaillant atmoVIT VK INT 564/1-5 56 kW
Single-circuit outdoor atmospheric gas boiler in international design. 
Combustion products exit through a classic chimney.
It is mounted on height-adjustable legs, taking into account the necessary indents. Has 8 sections of the heat exchanger made of cast iron.
Large thermal power allows the boiler to be used for space heating up to 560 sq.m..
Electronic control, there is a display. It can work on natural and liquefied gas.
Installed protection against freezing and overheating, auto-ignition of the burner, auto-diagnostics of operation.
Safety is provided by gas control. For efficient operation, the connection of a mains voltage stabilizer or INP is required.
Specifications:
- Thermal power 56.0 kW.
- Thermal load 61.5 kW.
- The combustion chamber is open.
- Consumption of natural gas 6.40 cubic meters/hour, liquefied gas 4.80 kg/hour.
pros
- Efficiency 91%;
- Durability, reliability.
Minuses
- No built-in circulation pump; expansion tank.
Vaillant atmoVIT VK INT 141/1-5 41 kW
Single-circuit atmospheric automatic gas boiler in international design. 
The heating area can reach 410 sq.m.
The heat exchanger has 6 cast iron sections. Electronic control with display.
The self-diagnosis function makes it easier to control the operation of the boiler.
There is also a function of auto-ignition of the burner, indication of inclusion, gas control.
Runs on natural and liquefied gas. There is no built-in pump to improve circulation, and there is also no expansion tank.
Specifications:
- Thermal power 41.0 kW.
- Thermal load 45.0 kW.
- Electronic control.
- Consumption of natural gas 4.70 cubic meters/hour, liquefied gas 3.50 kg/hour.
pros
- high power;
- durability and reliability;
- protection against freezing and overheating;
- Possibility to connect external control.
Minuses
- big weight;
- no built-in circulation pump;
How to choose the power of a gas boiler
You can calculate using the online calculator program. It will be necessary to enter data on the area of \u200b\u200bthe room, the thickness of the walls, the number of doors and windows, take into account thermal insulation and other information.
The program is free and allows you to choose a boiler with a minimum error.
To independently calculate the power parameters of a gas heating boiler, use a simple formula 1kW = 10 sq.m.
This calculation is suitable for a room with a ceiling height of 2.7 m and an average degree of thermal insulation.
Customer Reviews
Useful video
From the video you will get acquainted with the review of the Vaillant gas boiler:
