Gas condensation boiler Viessmann Vitodens 100-W B1HG with boiler connection, 25kW

Viessmann Vitodens 100-W B1HG – Gas Condensing Boiler with DHW Cylinder Connection (25 kW)

The Viessmann Vitodens 100-W B1HG (25 kW) is a wall-mounted gas condensing boiler for heating only, equipped with a connection for external DHW cylinders. Designed for new homes and energy-efficient renovations, it combines high output, quiet operation, and modern control options via ViCare.

It features the MatriX-Plus burner and Inox-Radial heat exchanger, offering up to 94% seasonal efficiency. Its modulation ratio of 1:8 ensures low gas consumption, and Lambda Pro Plus technology guarantees combustion quality across varying gas types.

Key Features and Benefits

✔ Output Range: 3.2 – 25.0 kW (modulating, 1:8 ratio)
✔ Energy Efficiency Class: A / A+ at 35 °C flow temperature
✔ Seasonal Efficiency (Hs): up to 94%
✔ Heat Exchanger: Stainless steel Inox-Radial
✔ Burner: MatriX-Plus with Lambda Pro Plus combustion control
✔ Hydrogen Ready: Works with gas containing up to 20% H₂
✔ Smart Home Integration: Built-in Wi-Fi for ViCare app
✔ Dimensions: 400 × 360 × 700 mm
✔ Weight: 33 kg
✔ Quiet Operation: Less than 35 dB(A)
✔ Compatible with External DHW Tanks – Vitocell and others

Vitodens 100-W B1HG (25 kW) is the ideal choice for households needing reliable heating and flexible DHW options, while enjoying A+ class energy performance and remote smart control.