viadrus u32 firebrick above ffhk For flexible expansion of your

For flexible expansion of your heating installation

Absence function

no additional modifications are necessary

Fuel feed: manual

viadrus u32 firebrick above ffhk For flexible expansion of yourViadrus U32 firebrick on top Firebrick on top Compatible with the cast iron boiler: Viadrus U32 Why does fireclay deteriorate over time? Due to its high mineral content, fireclay also has a slight disadvantage: it is relatively brittle. Due to prolonged exposure to high heat, it will eventually develop cracks. These are initial signs of wear and tear on the material, but not yet a reason for replacement. Fireclay should only be replaced when parts of