Description
Viessmann Vitodens 100-W 11kW System Boiler B1HG (3203681)
The Vitodens 100-W B1HG 11kW System Boiler is one of the most versatile and appropriately sized boilers for typical UK homes. With a modulation range from 3.2kW to 11kW on heating, it comfortably covers the average UK property heat loss of around 7kW at –3°C.
This model uses the same stainless steel Inox-Radial heat exchanger found in the larger outputs, and when configured in 4‑pipe mode, it delivers up to 17.5kW for domestic hot water — ideal for cylinders requiring higher reheat performance. (Ensure gas pipework is sized accordingly.)
The boiler performs exceptionally well with Viessmann’s new Vitotrol 100-E control, and with OpenTherm included as standard, it also integrates smoothly with third‑party OpenTherm controls.
Boiler, gas valve, heating flow & return valves included. For 4‑pipe installations, an additional valve set and Viessmann hot water controls are required (sold separately). Outdoor sensor for weather compensation not included. Contact us for guidance.
Features:
- Particularly attractive price/performance ratio
- Durable and efficient stainless steel Inox-Radial heat exchanger
- MatriX-Plus burner with Lambda Pro combustion control for high efficiency and low emissions
- Simple, intuitive LCD touch display and full app control via ViCare
- Integrated WiFi interface for remote monitoring, energy savings and enhanced safety
- Heating output: 3.2 – 11 kW
- DHW output (4‑pipe mode): 2.9 – 17.5 kW
- Standard efficiency: up to 98% (Hs)
- Modulation range: up to 1:10
- High‑efficiency variable‑speed circulation pump
- Energy efficiency class: A
Technical Data
- Product Code: 7988416
- EAN: 4054465321978
- Subtype: Gas System Boiler
- Colour: White
- Warranty: 7 Years
- Width: 595 mm
- Height: 455 mm
- Depth: 360 mm
- Weight: 39 kg
- Heating Output: 11 kW
- DHW Output: 17.5 kW (4‑pipe mode)
- ErP Space Heating Efficiency: A
- ErP Water Heating Efficiency: A
- Fuel: Natural Gas (20% Hydrogen Blend Ready)
- Mounting: Wall Hung
