Viessmann Vitodens 100-W 13kW Open Vent 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
  • Energy efficiency
  • Ultra compact
  • Smart home
  • Standard warranty
    5 years
  • Made in


Viessmann Vitodens 100-W 13kW Open Vent Boiler

A compact and efficient open vent gas boiler

An ideal replacement for older boiler systems, our open vent gas boilers are designed to be installed on an open vented system.

All of our boilers are designed and built to the highest standards in line with our long-established reputation for creating excellent quality heating systems.

Defining the quality benchmark for other brands, our open vent boiler range offers the latest in heating technology and is focused on delivering energy efficiency. This means our appliances will help you to reduce your costs, save natural resources and protect the environment.

    • An ideal replacement for traditional heating systems without having to make pipework changes
    • Suitable for installation in homes with older radiator systems
    • Deliver hot water to two or more bathrooms in your property without falls in temperature or pressure, making them perfect if large volumes of hot water will be used at the same time
    • Depth of only 285 mm (340 mm for 35 kW model) for installation into standard kitchen wall units
    • No pump overrun required 
    • Comprehensive warranty on the entire range, as standard 



    Viessmann boilers have received Best Buy status from members of the public and installers surveyed by “Which?”. All of our products use the latest technology and highest quality materials to save you money and use less energy. We’ve been a family-owned company since 1917 and employ more than 12,100 people in 74 countries. Every member of staff is given the opportunity for full professional development, so they can provide our customers with the best service possible. Our products go far beyond legal requirements for energy efficiency. Not only do they help preserve the energy reserves we have now, but they are ready for use with the energy sources of the future.

    Additional information


    Viessmann Vitodens 100-W 13kW Open Vent Boiler

    Product Code



    5 Years extendable to upto 10 years if fitted by a Viessmann trained installer

    Dimensions (W, H, D)

    375 x 600 x 285


    25 kgs


    7.9 – 13 kW

    ErP rating