Features and benefits 

  • Gas-fired wall mounted unit is from 4.7 to 35 kW
  • SEDBUK 2009 seasonal efficiency 89.5%
  • Modulation range up to 1:6
  • Modulating cylinder burner
  • User friendly control via backlit touchscreen
  • Constant temperature control and weather compensated operation (for the weather compensated operation the outside temperature sensor is required)
  • Multiple boilers can be installed on one chimney system
  • Energy efficiency class: A
  • 5 year comprehensive warranty as standard
  • Viessmann Trained Installers can now offer their customers an extended warranty option up to 10 years

With their compact dimensions, low weight and quiet operation, the attractively priced Vitodens 100-W gas condensing boilers will integrate effortlessly into any living space.

Improved modulation  

The modulating ratio over the entire output range is up to 1:6. This high ratio makes these boilers particularly suitable for use in small apartments and well insulated buildings. The user benefits from fewer appliance start-ups and therefore less operating noise. Because a lower level of stress is placed upon the appliance, the service life of components is consequently extended.

Backlit LCD touchscreen control

The Vitodens 100-W wall mounted gas condensing boilers are controlled by the new, backlit LCD touchscreen, which makes it easy to use and read in dark environments.

Reliable and durable - Made in Germany

As a major manufacturer, with many years of experience in the manufacture of wall mounted boilers we know what matters. Even when attractively priced, our standards of product quality and performance are consistently implemented. Therefore Viessmann wall hung boilers are not only renowned for innovative technology and services, but particularly for reliability and longevity.

Multiple use of a chimney

Modernisation of decentralised heating systems within the housing sector usually leads to elaborate renovations. With the Vitodens 100-W gas condensing boiler from Viessmann, end of life heating devices can be quickly and easily replaced. Using a Viessmann combined flue system (CFS) means numerous boiler flues can be routed up the riser to one roof termination point. The Vitodens 100-W boilers have combined PRV and condensate connections that can also be routed in to the CFS, and one single drain at the base of the system is all that is needed to remove the condensate, without unsightly pipes protruding through the external walls.
 


Product cross-section

Overview

Output (kW)
4.7 to 35 kW
Energy efficiency class
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A
Fuel
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Natural Gas & LPG
Energy efficiency class
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Detached and two-family houses, apartment buildings, flats in an apartment building, new build and modernisation projects
Operation
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User friendly control via backlit LCD touchscreen. Plug in controls for wireless operation
DHW heating
with additional DHW for high DHW convenience, up to 35 kW as combi boiler without additional DHW for simple hot water supply
Additional features
Improved flue options with max. flue length up to 19 metres (19 kW system)
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A perfect match – System technology


"The whole is greater than the sum of its parts". Following this philosophy, Viessmann supplies more than high quality, reliable and effective heating components. In fact, all products are part of a matching total concept, where all components complement one another. After all, only perfect interaction between all system components can draw out the maximum potential of our innovative leading technology.

Viessmann system technology incorporates everything you need for a reliable and economical heating system: From the Vitotronic control unit with wireless remote control, powerful Vitocell DHW cylinders for the highest DHW convenience, right up to high grade solar thermal systems for cost effective central heating backup.