Description
Viessmann Vitodens 200-W 49kW System Boiler B2HA with HO1B Weather Compensation Control – 7571049 (B2HAI41)
PLEASE NOTE: A minimum of connection set Z008912 OR 7501314 must be used to install this boiler.
The Viessmann Vitodens 200-W 49kW B2HA (bundle code B2HAI41, boiler part number 7571049) is a premium wall-mounted gas condensing system boiler supplied complete with the Vitotronic 200 HO1B weather compensation controller. Designed for large domestic properties, multi-family homes, and light commercial applications, it delivers exceptional efficiency, reliability, and advanced modulation control.
Featuring Viessmann’s proven Inox-Radial stainless steel heat exchanger, MatriX-Plus burner, and Lambda Pro Plus combustion control, the Vitodens 200-W ensures clean combustion, long service life, and consistently high seasonal efficiency of up to 98% (Hs). The included HO1B controller provides full weather-compensated operation for maximum efficiency and comfort.
Key Features
- 49kW output: Ideal for large homes, multi-zone systems, and light commercial applications.
- Weather compensation included: HO1B controller modulates flow temperature based on outdoor conditions.
- Inox-Radial heat exchanger: High-grade stainless steel for long-term durability and efficiency.
- MatriX-Plus burner: Clean, quiet, and efficient combustion with long service life.
- Lambda Pro Plus: Automatically adjusts for all gas types and ensures stable combustion.
- Up to 98% efficiency: Outstanding seasonal performance for reduced running costs.
- Quiet operation: Low fan speed and advanced burner design.
- 10-year heat exchanger warranty: When installed by a Viessmann-trained engineer.
Typical Applications
- Large domestic properties with high heat demand
- Multi-family homes and small apartment blocks
- Light commercial buildings such as offices, schools, and care homes
- Systems requiring weather-compensated control for maximum efficiency
- Properties with multi-zone heating circuits
Installer & Specifier Benefits
- Fully packaged bundle: Boiler + HO1B controller supplied together.
- Easy commissioning: Clear text display and guided setup.
- Flexible flueing: Suitable for open flue or room-sealed operation.
- Wide modulation range: Reduces cycling and improves efficiency.
- Web-enabled: Compatible with Viessmann Vitoconnect for remote monitoring.
Key Technical Information
- Manufacturer: Viessmann
- Range: Vitodens 200-W
- Model: B2HA 49kW System Boiler
- Bundle Code: B2HAI41
- Part Number: 7571049
- Control Type: Vitotronic 200 HO1B (weather compensation)
- Fuel Type: Natural Gas
- Efficiency: Up to 98% (Hs)
- Heat Exchanger: Stainless steel Inox-Radial
- Burner: MatriX-Plus with Lambda Pro Plus
- Mounting: Wall-hung
What’s Included in the B2HAI41 Bundle
- Vitodens 200-W B2HA 49kW system boiler
- Vitotronic 200 HO1B weather compensation controller
- Modulating MatriX-Plus burner
- Fully plumbed and wired internal assembly
- Boiler flue connection
Why Choose the Vitodens 200-W B2HA 49kW
The Vitodens 200-W B2HA 49kW with HO1B control is one of the most advanced high-output domestic/light commercial boilers available. Its combination of stainless steel heat exchanger technology, intelligent combustion control, and weather-compensated modulation makes it a top choice for installers and specifiers seeking long-term reliability and maximum efficiency.
