Features & Benefits:

• Highly efficient ErP A rated boiler
• Designed to help reduce your energy bills
• Compact size that's perfect for modern homes
• Suitable for open vent and sealed systems
• High effectiveness and low emissions
• Incredibly efficient and durable thanks to Inox-Radial stainless steel heat exchanger
• 1 mandatory step when commissioning
• 2-year guarantee (qualifies for free extension to 7-years if registered with Viessmann within 30 days)

The Viessmann Vitodens heat only, hydrogen ready, natural and LPG Gas Condensing Boiler is an ErP A rated boiler that is designed with high quality in mind. The Vitodens gas condensing boiler comes with a 25kW output, an attractive modern design, and boasts a compact size that's ideal for fitting into cupboards.

New and Improved Features:

Simplified Commissioning

With the new and improved version of Viessmann boilers, enjoy advanced features including enhanced commissioning flow across the 050-W and 100-W product ranges.

Standardised Parameters for Easier Transition

Parameters have been standardised across the ranges, making it far easier to transition between the different models.

What’s more, the number of steps for a standard commissioning have been reduced. The boilers now only require a few essential parameters to be confirmed during the start-up process, lowering the overall time spent with commissioning and reducing complexity. 

Technical information:

• Hydrogen ready: (H2 20% blend)
• Output: from 3.2 to 25kW
• ERP efficiency: 92% (Hs)
• Energy efficiency class: A
• Flue gas connection: 60mm
• Ventilation air connection: 100mm