Product Information: The automatic air vent is a pressure safety device in the central heating unit. They work by using buoyancy to release accumulated 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 is present in 10 different boilers in the Baxi range including the Baxi DUOTEC 2 COMBI GA , DUOTEC 2 COMBI GA , DUOTEC 2 COMBI GA , DUOTEC 2 COMBI GA , NETATEC COMBI GA . In the next tab there is an appliance grid with links to all boilers that contain this part, Please use this if you would like to view all other spares that fit that model and download the user manual for that appliance. If none of these models match the appliance you have, please contact us before ordering so we can confirm this part is compatible.
We recommend that all parts are fitted by a fully qualified gas safe certified technician. Please feel free to contact us if you require our help finding a part. 
