Product Information: The automatic air vent is a pressure safety mechanism in the central heating unit. They work by using floatation to release an accumulation of 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 is full of water, the float will be pushed to the top and the vent will be closed until the water level drops.
Great customer service from the Greenford branch on two separate occasions this month. Courteous and polite and no quibbles. Well done.
Excellent service, very competitive prices for top quality supplies !!
Online ordering so easy !!
Always a good purchasing experience and excellent customer service.
This website collects cookies to deliver better user experience!