Vaillant 0010033857
Automatic air vent 0010033857
Vaillant 0010033857 Automatic Air Vent - ecoTEC Plus/ecoTEC Pro.
Product Information: The automatic air vent is a safety device within the central heating unit. They work by using buoyancy to release built up air. As water flows through the heating/cooling system, a float within the automatic air vent opens or closes depending on the water level. If the system is full of water, the float will be pushed to the top and the vent will be closed until the water level drops.
SKU: Vaillant-0010033857
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