Viessmann Vitodens 100-W has now won the Which? Best Best Buy UK Combi Boiler for the 2nd year running in 2018.
These condensing gas boilers are one of the highest efficiency boilers available not only in the UK, but around the world. They also sit at an attractive price point compared to other boilers available in the UK. That often times gives people the impression that it’s a cheap boiler.
But Viessmann Boilers are one of the most technologically advanced boilers available in the world at the moment. How do Viessmann manage to keep the price low, and more importantly, is this boiler any good? Let’s find out.