Viessmann Vitodens 100-W 26kW
The Vitodens 100-W is Viessmann's flagship condensing combi, and one of the most efficient gas boilers available in the UK. At 96% ErP efficiency and with Viessmann's renowned Inox-Radial stainless steel heat exchanger, it represents exceptional long-term value.
Technical Specifications
Key Features
- 96% ErP seasonal efficiency — A+ rated
- Inox-Radial stainless steel heat exchanger
- MatriX cylinder burner for ultra-low NOx
- Weather compensation compatible
- ViCare smart control compatible
- Available 26–35 kW
Best For
Homeowners who want the highest efficiency available in a gas condensing combi.
Common Questions About the Vitodens 100-W 26kW
Why is the Vitodens 100-W so efficient?
The MatriX cylinder burner and stainless steel heat exchanger combination is unique to Viessmann and achieves 96% ErP — among the highest of any gas boiler.
Is the Vitodens 100-W expensive to service?
Slightly more than budget brands, but Viessmann's build quality means fewer faults. Annual service cost is similar to other premium brands.
How does the Vitodens 100-W compare to a Worcester 8000?
The Vitodens 100-W is slightly more efficient (96% vs 95.3%) and uses a more premium stainless heat exchanger. The Worcester 8000 is more widely serviced in the UK. Both are excellent choices.
Other Viessmann Models We Install
Ready to Get the Vitodens 100-W 26kW Installed?
We supply and install the Viessmann Vitodens 100-W 26kW across Corby, Kettering, Northampton, and all surrounding areas. Fixed price, Gas Safe certified.