Viessmann · Vitodens 200-W B2HA Boiler
Poor water quality, characterized by high mineral content or hardness, can lead to scaling and corrosion within the boiler. Additionally, using unapproved or automotive silicate-based antifreeze can damage system components.
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Have the boiler system water tested for hardness and mineral content.
If antifreeze is present, verify it is specifically designed for hot water heating systems and not automotive type.
Ensure antifreeze concentration does not exceed 50% and monitor it regularly.
If water quality is poor, consult a heating professional for water treatment options or to flush and refill the system with appropriate fluids.
Inform the system operator/owner if a glycol mix is used and provide safety data sheets.