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Convenient heat generation with natural gas

Viessmann offers various technologies for convenient heat generation with natural gas that meet a wide variety of requirements. For example, for gas heating in new buildings or modernisation, for apartments, single-family homes or for major projects in the housing industry. Gas condensing boilers are particularly suitable for use in new buildings. These are extremely compact and wall-mounted models that can be installed in almost any room.

If a solar system is to be connected for DHW heating, gas condensing boilers with integrated solar heat exchangers are recommended. The floorstanding gas condensing boilers are state-of-the-art and cover an output range from 2 to 100 kW. This enables them to supply heat efficiently and reliably to detached, semi-detached and small apartment buildings at any time.

Condensing boilers with gas are also available in larger outputs. They are mainly used in buildings with a high heat demand. These are usually apartment buildings, public and commercial buildings. Thanks to the cascade function, several devices can be quickly connected to form a single unit and reliably provide heat in this application as well.

Which gas boiler is the best for you?

Gas condensing boiler product line-up

Vitodens 050-W gas condensing boiler
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Vitodens 050-W

A compact, low-cost gas condensing boiler

With compact dimensions, low weight and quiet operation, the attractively priced Vitodens 050-W is a low-cost gas condensing boiler that will integrate effortlessly into any living space and does not compromise on quality;...

  • Up to 7 years
    warranty
  • Easy control with
    LCD Display
  • Smart Home
     with tado°
  • Boiler Plus
    Compatible
Discover the Vitodens 050-W
Vitodens 100-W gas condensing boiler
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Vitodens 100-W

Our best selling gas condensing boiler

Efficient, compact, quiet and affordable, the Vitodens 100-W gas condensing boiler is the most popular solution for smaller and well insulated homes. Featuring innovative technology and services combined with reliability a...

  • Up to 10 years
    warranty
  • Easy control LCD
    Touchscreen
  • Smart Home
     with tado°
  • Boiler Plus
    Ready
Discover the Vitodens 100-W
Vitodens 200-W gas condensing boiler
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Vitodens 200-W

A powerful gas condensing boiler for larger homes

The Vitodens 200-W is a powerful, flexible and easy to maintain wall mounted gas condensing boiler that is perfect for larger detached and semi-detached homes. Available as a system or combi boiler, the highly efficient Vi...

  • Up to 10 years
    warranty
  • Colour
    Touchscreen
  • Quiet
    operation
  • Smart Home 
     with ViCare
Discover the Vitodens 200-W
Vitodens 111-W gas condensing boiler
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Vitodens 111-W

A high performance storage combi boiler for the family home

Rapid, reliable and compact, the Vitodens 111-W is a high performance wall mounted storage boiler for family homes with a high demand for hot water. With its cylinder loading system (CLS) and 46 litre integrated stainless ...

  • Up to 10 years
    warranty
  • Easy control LCD
    Touchscreen
  • Smart Home
     with tado°
  • Integrated
    storage tank
Discover the Vitodens 111-W
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Vitodens 100-W Open Vent

A compact and efficient open vent gas boiler

An open vent, wall mounted gas fired condensing boiler which is compact enough to fit in a standard kitchen cupboard. Also suitable for use in other applications where there is only limited space available.

  • Designed for
    Residential
  • Powered by
    Gas
  • Up to
    35 kW
  • Energy efficiency
    A
Discover the Vitodens 100-W Open Vent
Vitodens 222-F
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Vitodens 222-F

Floorstanding convenience with loading cylinder

A gas condensing storage combi boiler with integral enamelled loading cylinder or DHW cylinder with internal indirect coil, with a rated heating output 1.8 to 35 kW. A visually attractive heating centre that corresponds pr...

  • Designed for
    Domestic
  • Powered by
    Gas
  • Energy efficiency
    A
  • Up to
    35 kW
Discover the Vitodens 222-F
Vitodens 242-F
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Vitodens 242-F

Futureproof through solar integration

A gas condensing storage combi boiler for state of the art, futureproof heating with condensing and solar technology in detached houses, rated heating output: 1.9 to 26 kW. Prepared for direct connection of Vitosol solar c...

  • Ideal for
    Domestic
  • Powered by
    Gas
  • Up to
    26 kW
  • Energy efficiency
    A
Discover the Vitodens 242-F
Vitocrossal 100

Vitocrossal 100

Advanced gas condensing boiler

An award winning boiler with an output range of 80 - 320 kW, or 640 kW as a twin unit. Features advanced condensing technology, making it an economical boiler suitable for many different applications.

  • Suitable for large 
    Residential
  • Suitable for
    Commercial
  • Powered by
    Gas
  • Up to
    320 kW
Discover the Vitocrossal 100

Vitocrossal 200

High performance at the right price

A universal solution for new build and modernisation projects, the Vitocrossal 200 is a gas condensing boiler with a rated heating output of 87 to 311 kW. For the reliable supply of heat in large residential buildings as w...

  • Large
    Residential
  • Large
    Commercial
  • Powered by
    Gas
  • Up to
    311 kW
Discover the Vitocrossal 200

Vitocrossal 300

Our most powerful gas condensing boiler

The powerful Vitocrossal 300 is designed for flexible use in the medium output range. With an output range of 87 to 1400 kW, it is an efficient solution for heating in apartment blocks, as well as in public and commercial ...

  • Large
    Residential
  • Large
    Commercial
  • Powered by
    Gas
  • Up to
    1400 kW
Discover the Vitocrossal 300

Not sure which gas boiler you need? Use our simple tool.

Using future-proof heating technology today

The demands for resource-saving heating technologies are becoming ever more pressing. New gas condensing boilers should not only work cleanly, but also sustainably. In response to this, Viessmann has already invested in the future in its gas condensing boilers. Thanks to combustion control, the gas condensing boilers automatically adjust to different types of gas - including biogas admixture. Thus, the heating systems sustainably meet the requirements for resource-saving heating technologies.

Another argument in favour of choosing a gas condensing boiler is that energy does not have to be stored in the house. The compact gas condensing boilers save valuable living space.

Gas condensing boiler technology

Our range of gas condensing boilers 

Viessmann gas condenser boilers are equipped with condensing technology. This condensing technology not only utilises the heat generated by combustion but also the water vapour content. This enables them to be able to extract almost all of the heat contained in the flue gases and convert it into heating energy.

Central to the performance of Viessmann gas condensing boilers is the high performance stainless steel Inox-Radial heat exchanger. It is the role of the heat exchanger to cool the flue gases before they escape through the chimney. In doing this, the water vapour contained in these gases is deliberately condensed. This releases additional heat which is transferred into the heating system.

The use of condensing technology within Viessmann boilers means they can achieve efficiency of up to 98% and are rated energy efficiency class A. This energy efficiency means you are looking after both your finances and the environment.

Protecting the climate and the environment - for example with a gas condensing boiler

Combining climate protection and economic relief. This is achieved by using condensing technology. The special feature of this technology is its highly efficient energy utilisation. While conventional heating systems simply let some of the energy contained in the fuel escape unused, the gas condensing boiler converts the energy content of a fuel almost completely into heat. 

For example, heating with a gas condensing boiler keeps heating costs at a low level in the long term and at the same time reduces the burden on the environment. Because less combustion also means less CO2 emissions.

All Viessmann gas condensing boilers meet the EU-wide requirements for efficient condensing technology. 98 percent and more of the energy used is converted into heat. With this high efficiency, every user of such a gas heating system makes an active contribution to climate and environmental protection

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MatriX cylinder burner

The MatriX gas burner

The MatriX gas burner represents a milestone in Viessmann heating technology. The use of the stainless steel MatriX gauze endows it with a long service life. The burner is resistant to high temperature loads.

The Vitodens Family

At Viessmann, we off a range of gas condensing boilers including combination boilers, open vent boilers and storage boilers. Within this range we have the perfect boiler for any home.

The Vitocrossal Family

With an output range from 87 to 1400 kW, the Vitocrossal family can be deployed in larger residential settings such as heating apartment buildings through to public or commercial premises and generating heat in local heating networks.

Gas condensing boilers

With condensing technology, not only is the heat from the combustion of fuel oil or gas utilised, but also the heat that, with non-condensing heating technology, would otherwise escape unused up the chimney. Condensing boilers extract almost all of the heat latent in flue gases and convert it into additional heating energy. To do this, Viessmann condensing boilers are equipped with stainless steel Inox-Radial heat exchangers, which cool the flue gases before they are routed into the stack, to the extent that the water vapour contained within them is deliberately condensed, transferring the additional heat released into the heating system.

Condensing combi boilers

As part of our range of gas condensing boilers, we offer a number of gas condensing combi boilers. Combining a high-efficiency water heater and a central heating boiler in a single compact unit, our condensing combi boilers are an ideal space-saving option for your property.

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