Vitoligno 250-S

Viessmann Residential
Vitoligno 250-S
Log boiler

Vitoligno 250-S

Viessmann Vitoligno 250‑S – Log Boiler
High‑efficiency wood gasification log boiler delivering 85 to 170 kW, designed for half‑metre and metre logs, featuring advanced combustion control, large fuel capacity, and convenient operation for residential, agricultural, and commercial applications.

Features

Clean & Efficient Combustion

Advanced wood gasification technology Boiler efficiency up to 93.2% Lambda sensor control ensures optimum combustion Low emissions across all operating conditions Continuous combustion optimization through intelligent controls

Intelligent Combustion Management

Microprocessor control continuously monitors: Combustion conditions Heat demand Heat distribution Motorized air flaps automatically regulate airflow Optimized performance during: Ignition Full load operation Burn‑out phase

Large Filling Chamber

Large loading volume of 375 to 500 litres Convenient top‑loading design Filling chamber width of 1080 mm Suitable for metre‑long logs Fewer refueling intervals and increased operating comfort

Flexible Fuel Capability

Supports multiple fuel types: Firewood logs Wood briquettes Loose wood residues Lumpy residual wood Tolerant of impurities such as: Nails Screws Other embedded contaminants

Optimized Thermal Storage Integration

Built‑in buffer charge management Accurate temperature stratification of buffer tanks Buffer accumulator control valve helps preserve thermal layers Improves overall system efficiency

Residual Heat Utilization

Maximizes remaining thermal energy after combustion Delivers up to 8% additional energy utilization Reduces fuel consumption Improves overall heating efficiency

Control / Integrations

Advanced Boiler Control

Microprocessor‑based combustion management
Automatic regulation of motorized air flaps
Continuous monitoring of all operating phases
Optimizes efficiency and emissions automatically

Buffer Tank Integration

Built‑in buffer charge management
Supports precise charging and temperature stratification
Enhances overall heating system performance

Remote Operation

Optional Vitotrol 350‑C touchscreen controller
Enables operation from living areas
Displays:
Boiler status
Buffer tank information
System parameters
Allows adjustment of all key settings remotely

Expandable System Control

Vitotrol 350‑C supports expansion for up to:
20 additional control functions
Heating circuits
Domestic hot water systems
Provides centralized management of the heating system

Smart Connectivity

Compatible with ViCare App
Smartphone access for convenient monitoring and operation
Enhances user convenience and system oversight

Applications

Single‑family homes
Multi‑family residential buildings
Farms and agricultural facilities
Workshops and commercial premises
Biomass heating systems
Properties with access to wood fuel resources

Technical Documents

Document Name Description Document Type Language Action
Datasheet - Vitoligno 250-S PDF German Download
Brochure - Vitoligno 250-S PDF German Download
Technology Brochure - Log Boilers PDF German Download
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