Gas condensation boiler Viessmann Vitodens Classic combined, 25kW

Viessmann Vitodens Classic – Gas Condensing Combi Boiler (25 kW)

The Viessmann Vitodens Classic (25 kW) is a compact and quiet wall-mounted gas condensing boiler, ideal for heating and domestic hot water in single-family homes and apartments. Its robust design, advanced burner technology, and stainless steel heat exchanger ensure maximum reliability and energy efficiency.

The boiler features the MatriX-Plus burner with Lambda Pro Plus combustion control, which automatically adjusts for gas quality and ensures clean and consistent operation.

Key Features and Benefits

✔ Output Range: 3.2 – 25.0 kW (modulating)
✔ DHW Flow Rate: Up to 14.1 L/min at ΔT 30 °C
✔ Energy Efficiency Class: A / A+ at 35 °C
✔ Seasonal Efficiency (Hs): up to 94%
✔ Inox-Radial Stainless Steel Heat Exchanger – Long-lasting and corrosion-resistant
✔ MatriX-Plus Burner + Lambda Pro Plus – Automatically adjusts to gas quality
✔ Compact Dimensions: 360 × 450 × 700 mm
✔ Weight: 33 kg
✔ Quiet Operation: Ideal for living spaces
✔ Hydrogen-Ready: Certified for up to 20% hydrogen blend

Vitodens Classic (25 kW) is a smart and space-saving boiler solution offering reliable heating, hot water, and A+ efficiency — perfectly suited for modern homes.