The AAV as it is also known is fitted to the boiler to automatically remove air from the central heating system and the boiler. They work using a float which opens when air is present and closes when it detects no air This ensures air can’t get into the boiler which could cause airlocks and a variety of other problems to the boiler. The auto air vent is normally located on the pump housing ensuring air is removed from the boiler at this point, the point where the water is being circulated and where air bubbles would occur. The pump circulates water around the boiler and also around the central heating system but if the air was present within the pump, the pump would cease to be effective, the boiler would overheat which would cause the boiler to turn off on an overheat fault. Auto-Air Vents are fitted to every boiler and should be checked regularly to ensure they are in good working order.

Vokera 100618 Linea Max Auto Air Vent

Part: 100618

Price: £16.06
Ravenheat 0008VAL11010/0 Automatic Air Vent

Part: 0008VAL11010/0

Price: £11.55
Chaffoteaux 60000994 Air Separator

Part: 60000994

Price: £17.57
Ideal 172525 Mini Auto Air Vent

Part: 172525

Price: £11.50
Vokera 20019768 Auto Air Vent

Part: 20019768

Price: £7.95
Main Auto Air Vent 5122330

Part: 5122330

Price: £35.13
Vokera 10029306 Linea He Unica Auto Air Vent

Part: 10029306

Price: £14.15
Vaillant 061707 Turbomax Auto Air Vent

Part: 061707

Price: £13.00
Ideal 173813 Mini Auto Air Vent

Part: 173813

Price: £8.95
Saunier Duval Auto Air Vent 2000800153

Part: 2000800153

Price: £10.25
Main Automatic Air Vent 5106932

Part: 5106932

Price: £13.75
Remeha 720532801 Automatic Air Vent

Part: 720532801

Price: £19.95
Baxi 240396 Solo Pfl Auto Air Vent

Part: 240396

Price: £13.50
Chaffoteaux 995865 Auto Air Vent

Part: 995865

Price: £10.46
Ideal 172668 Imax Auto Air Vent

Part: 172668

Price: £9.95
Ariston 995865 Aco Auto Air Vent

Part: 995865

Price: £10.25
Baxi 5122330 Duo-Tec 40He Auto Air Vent

Part: 5122330

Price: £35.13
Potterton Auto Air Vent 240396

Part: 240396

Price: £13.50
Chaffoteaux 65104703 Auto Air Vent

Part: 65104703

Price: £21.21
Main Auto Air Vent 430054

Part: 430054

Price: £8.95
Ideal 075468 Henrad Auto Air Vent

Part: 075468

Price: £15.95
Worcester Bosch 87161061420 Junior Auto Air Vent

Part: 87161061420

Price: £10.99
Ideal 113116 Classic Auto Air Vent

Part: 113116

Price: £14.50
Saunier Duval Auto Air Vent 2000801898

Part: 2000801898

Price: £14.95
Baxi 720777601 Automatic Air Vent

Part: 720777601

Price: £19.95
Main Auto Air Vent 430000

Part: 430000

Price: £9.95
Ferroli 39801160 Optima Auto Air Vent

Part: 39801160

Price: £14.00
Chaffoteaux 998643 Auto Air Vent

Part: 998643

Price: £12.00
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