The Viessmann Vitodens 200‑W 25kW B2HF System Boiler is a premium, highly efficient wall‑mounted gas condensing boiler designed for modern homes that require reliable heating performance, smart control options, and long‑term energy savings. Compact, quiet, and built with Viessmann’s renowned engineering quality, it is ideal for small to medium‑sized properties with a sealed heating system.

• Type: System boiler (requires a separate hot water cylinder)
• Output: 25kW — suitable for small to medium homes with moderate heating demands
• Burner: MatriX‑Plus burner with Lambda Pro Plus combustion control for efficient, clean, and stable operation
• Heat Exchanger: Stainless steel Inox‑Radial for outstanding durability and high efficiency
• Modulation Range: Wide modulation capability for reduced cycling, lower fuel consumption, and quieter operation
• Hydrogen Ready: Compatible with up to 20% hydrogen blend
• Connectivity: Advanced digital control platform for performance optimisation and monitoring
• Control Options: Large LCD touchscreen, Viessmann smart controls, and compatibility with building management systems if required

• Works with a separate hot water cylinder for reliable, consistent hot water supply
• Compact, wall‑mounted design suitable for utility rooms, plant rooms, and compact spaces
• Suitable for radiator systems, underfloor heating, or mixed installations
• Delivers stable heating output with excellent energy efficiency

• Compatible with horizontal or vertical Viessmann flue systems
• Ensures safe and efficient discharge of combustion gases
• Designed for sealed combustion systems and optimal condensing performance
• Typically supplied with required pipework, connections, and seals depending on the installation

• Protects the system from sludge and debris
• Helps maintain long‑term efficiency and reduce maintenance issues
• Easy to service and clean
• Extends lifespan of boiler components

• Connectivity: Fully compatible with Viessmann smart heating controls
• Remote Management: Enables scheduling, temperature adjustments, and diagnostic visibility
• Diagnostics: Integrated intelligent fault detection and system monitoring
• Thermostat Options: Works with Viessmann thermostats and other smart heating systems