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it improves the overall performance of the heating system
Technical data:
VR 71 mixer and solar module for controlling 3 mixer circuits and solar functions
Connection for external combustion air
Viadrus U22 und U32 Schamottdüse für Tertiärluftzufuhr Brennerschale it improves the overall performanceViadrus U22 and U32 fireclay nozzle for tertiary air supply Viadrus U22 and U32 fireclay nozzle Compatible with the cast iron boilers: Viadrus U22 and 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
