All orders accepted by 3pm Monday to Thursday are dispatched the same day and are normally delivered within 24 hours.

Can't find your part?

Get in touch now!

Can't find your part?

Get in touch now!

Can't find your part?

Get in touch now!

Glowworm S1005600 Automatic Air Vent

£27.17 ex. VAT

The automatic air vent is a pressure safety mechanism in the central heating unit. They work by using buoyancy to release built up air. As water circulates through the heating/cooling system, a float within the automatic air vent opens or closes depending on the water level. If the system contains only water, the float will be pushed to the top and the vent will be closed until the water level drops.

Can't find your part?

Get in touch now!