viadrus u32 firebrick above Regelungstechnik you're choosing a useful accessory

you're choosing a useful accessory for expanding your heating control system

The "8°C Frost Protection" function prevents your rooms from cooling down too much in winter

such as the double thermal relief valve

In combination with the VR 70 and VR 71 mixing and solar modules

⭐ Automatic start of the pellet burner after wood has burned out is possible

viadrus u32 firebrick above Regelungstechnik you're choosing a useful accessoryViadrus 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