Vaillant Automatic Air Vent | 104521 | 0010033857 CLEAN OUT COVER The Micro 2 might be

The Micro 2 might be small but it is perfectly formed and incredibly powerful

delivering efficient performance with an EEI of 0

½" for basin

Control your hot water and heating from the comfort of your bed or sofa using your tablet or smart phone

Vaillant VU 186/3-5 (2005-2005)

Vaillant Automatic Air Vent | 104521 | 0010033857 CLEAN OUT COVER The Micro 2 might beVaillant Automatic Air Vent 104521 0010033857 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. This Part Fits: