Viessmann Vitodens 100-W system and combination boiler

From £2,160
(including VAT)

This is the most popular model in their range and is ideal for smaller, well insulated homes.

Available in both natural gas and LPG, (conversion kit required) and coming with a 5 year parts and labour warranty as standard, with a free upgrade to 10 years when supplied and installed by Clarity.

This boiler at a glance

  • Compact design and low weight
  • Quiet operation thanks to low fan speed
  • Available in outputs from 4.7 to 35 kW
  • High quality stainless steel Inox-Radial heat exchanger
  • High efficiency – SEDBUK 2009 seasonal efficiency: 89.5%
  • Class A rated for energy efficiency
  • Low CO2 emissions for reduced environmental impact
  • User friendly Backlit LCD Touch screen for easy operation
  • Optional room thermostats available
  • Viessmann Approved extended warranty option up to 10 years

Known for their quality and durability, these boilers, just like others in their range, are renowned for reliability and longevity and are ideal for small to medium sized households.

Order this boiler now


Full details of what you would receive ordering this boiler installation with Clarity Heating:

  • Viessmann Vitodens 100W 19kw System Gas Boiler With 10 Year Warranty
  • Fully drain down the heating system, disconnect and remove the boiler, flue and all associated pipe work.
  • Supply and install the following items:
    • Viessmann Vitodens 100W 19kw system gas boiler with touchscreen control.
    • Viessmann horizontal flue kit.
    • Spirotech Spirotrap magnetic filter and dirt separator to protect the boiler heat exchanger.
    • Filling loop.
      Pipe work and fittings.
  • Install the boiler in the same location as the existing unit.
  • The Spirotech filter is to be installed on the return heating pipe.
  • Run the condense pipe to a suitable outlet.
  • Alter pipe work as required and connect to the boiler.
  • Refill the system and test for leaks, add suitable inhibitor.
  • Balance the heating circuit by measuring the flow and return differential temperatures across all radiators.
  • Commission the boiler and register the installation with Building Control via Viessmann.
  • Activate 10 year full parts and labour manufacturer backed warranty.
  • Clear all waste from site.


< Back to Recommended boilers range

Clarity Heating Recommends Viessmann Boiilers and Heating systems in Cambridgeshire
Approved Viessmann engineers for good reason
It doesn’t take long to come across the iconic Viessmann logo when browsing boilers and that’s for good reason. The company knows a thing or two about heating technology, having begun in 1917, and has continued to impress Clarity Heating’s engineers with some of the
Read more.
Clarity heating are experts in central heating controls and thermostat upgrades in Cambridgeshire and Suffolk
Look after your gas boiler, whatever you do
Did you know Landlords and homeowners must have an annual gas safety check by law, but this doesn’t mean appliances are hazard-free for another year, and certainly doesn’t guarantee they’re running cost-effectively. So as well as monitoring your boiler , there are extra steps everyone
Read more.
How to avoid heating disasters this winter
The team at Clarity Heating will soon be decking the halls with boughs of holly and the tinsel will be everywhere, which has given us food for thought about preparing for the worst over the festive period. Christmas is a time when people traditionally down
Read more.