Glowworm 0020014161 Automatic Air Vent (AAV), Flexicom, ultracom

City Plumbing

The Glowworm Automatic Air Vent 0020014161 is a genuine Glowworm spare part with a Glowworm manufacturer's guarantee. An Automatic Air Vent (AAV) is a pressure safety measure for the central heating unit. They work by using a float to release built-up air. As water flows through the heating and cooling system, a float within the automatic air vent opens or closes depending on the water level. If the system contains no air, the float will be pushed to the top and the vent will be closed until the water level drops.

Direct Heating Spares

Glow-worm 0020014161 Automatic Air Vent - Betacom/Easicom. Genuine brand new Glowworm Boiler Spares product, covered by a Glowworm Boiler Spares manufacturer's guarantee.

National Shower Spares

Glow Worm Automatic Air Vent (20014161). Genuine brand new Glow Worm product, covered by a Glow Worm manufacturer's guarantee.