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.

Automatic Air Vent - 0020198362

Part: 0020198362

Price: £91.73
Saunier Duval Auto Air Vent 2000800153

Part: 2000800153

Price: £10.25
Vokera 10029306 Linea He Unica Auto Air Vent

Part: 10029306

Price: £14.15
Main Auto Air Vent 240396

Part: 240396

Price: £13.50
Worcester Bosch 87161061420 Junior Auto Air Vent

Part: 87161061420

Price: £11.54
Alpha 1.022102 Cd Auto Air Vent

Part: 1.022102

Price: £12.00
Vaillant 104521 Auto Air Vent

Part: 104521

Price: £12.95
Ravenheat 5015015/N Air Purge Valve

Part: 5015015/N

Price: £11.55
Ariston 60000994 Air Separator

Part: 60000994

Price: £20.05
Main Auto Air Vent 247391

Part: 247391

Price: £8.95
Baxi 720777601 Automatic Air Vent

Part: 720777601

Price: £19.95
Potterton Kit Auto Air Vent- 720004701

Part: 720004701

Price: £32.19
Vaillant 061707 Turbomax Auto Air Vent

Part: 061707

Price: £13.00
Vaillant De-Aeration Valve - 060051

Part: 060051

Price: £6.50
Vokera Air Separator

Part: 20019888

Price: £18.28
Worcester Air Vent 87161402380

Part: 87161402380

Price: £17.03
Chaffoteaux 60000994 Air Separator

Part: 60000994

Price: £20.05
Ideal Air Vent 173880

Part: 173880

Price: £13.95
Vaillant Automatic Air Vent - 0020143508

Part: 0020143508

Price: £22.11
Potterton Pump Airvent 720532801

Part: 720532801

Price: £19.95
Main Automatic Air Vent 5106932

Part: 5106932

Price: £13.75
Chaffoteaux 998643 Auto Air Vent

Part: 998643

Price: £12.00
Ariston 998643 Auto Air Vent

Part: 998643

Price: £12.00
Ariston 571639 Ecogenus Auto Air Vent

Part: 571639

Price: £13.12
Vaillant Automatic De-Aerator - 061723

Part: 061723

Price: £41.12
Glowworm S801186 Auto Air Vent

Part: S801186

Price: £13.75
Ideal 113116 Classic Auto Air Vent

Part: 113116

Price: £14.50
Ideal 172668 Imax Auto Air Vent

Part: 172668

Price: £9.95
Worcester Air Vent Manual 87161405160

Part: 87161405160

Price: £10.21
Vokera 20019768 Auto Air Vent

Part: 20019768

Price: £7.95
Potterton 26009104 Auto Air Vent

Part: 26009104

Price: £24.87
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