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.

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Alpha 1.022102 Cd Auto Air Vent

Part: 1.022102

Price: £12.00
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Alpha 1.010771 240, Cb, Cd Auto Air Vent

Part: 1.010771

Price: £14.00
AK151157
Alpha 1.027110 Intec 2, Eco 2 Auto Air Vent

Part: 1.027110

Price: £19.95
AK151159
Baxi 720777601 Automatic Air Vent

Part: 720777601

Price: £19.95
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Baxi 248043 Duo-Tec, Platinum, Megaflow Auto Air Vent

Part: 248043

Price: £9.95
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Baxi 240396 Solo Pfl Auto Air Vent

Part: 240396

Price: £13.50
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Baxi 720004701 Kit Auto Air Vent

Part: 720004701

Price: £32.19
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Remeha 720532801 Automatic Air Vent

Part: 720532801

Price: £19.95
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Baxi 5122330 Duo-Tec 40He Auto Air Vent

Part: 5122330

Price: £35.13
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Baxi 247391 Maxflow Combi Wm Auto Air Vent

Part: 247391

Price: £8.95
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Potterton Pump Airvent 720532801

Part: 720532801

Price: £19.95
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Potterton Statesman, Heatmax, Promax Auto Air Vent 5122330

Part: 5122330

Price: £35.13
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Potterton Puma, Ultra Auto Air Vent 10/18728

Part: 10/18728

Price: £7.95
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Potterton Kit Auto Air Vent- 720004701

Part: 720004701

Price: £32.19
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Potterton 26009104 Auto Air Vent

Part: 26009104

Price: £24.87
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Potterton 5106932 Automatic Air Vent

Part: 5106932

Price: £13.75
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Potterton Envoy, Suprima Auto Air Vent 430054

Part: 430054

Price: £8.95
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Potterton Lynx 2 Automatic Air Vent 430000

Part: 430000

Price: £9.95
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Potterton Gold He, Performer, Promax, Heatmax Auto Air Vent 248043

Part: 248043

Price: £9.95
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Potterton Automatic Air Vent 247391

Part: 247391

Price: £8.95
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Potterton Auto Air Vent 240396

Part: 240396

Price: £13.50
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Saunier Duval Automatic de-aerator S1005600

Part: S1005600

Price: £14.95
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Saunier Duval S801186 Compact Auto Air Vent

Part: S801186

Price: £13.75
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Saunier Duval Auto Air Vent 2000801898

Part: 2000801898

Price: £14.95
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Saunier Duval Auto Air Vent 2000800685

Part: 2000800685

Price: £10.50
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Saunier Duval Auto Air Vent 2000800153

Part: 2000800153

Price: £10.25
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Saunier Duval Auto Air Vent - 0020014161

Part: 0020014161

Price: £22.65
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Sime 6017210 Manual Air Vent

Part: 6017210

Price: £14.32
6013101
Sime 6013101 E Comfort Format Auto Air Vent

Part: 6013101

Price: £17.81
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Sime 6013100 Friendly Super Auto Air Vent

Part: 6013100

Price: £10.95
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Ravenheat 5015015/N Air Purge Valve

Part: 5015015/N

Price: £12.36
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Ravenheat 5015015 Air Purge Valve

Part: 5015015

Price: £12.36
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Ravenheat 0008VAL11010/0 Automatic Air Vent

Part: 0008VAL11010/0

Price: £12.36
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Chaffoteaux 61304608 Britony Combi Minima Auto Air Vent

Part: 61304608

Price: £25.40
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Chaffoteaux 61002653 Britony Combi Auto Air Vent

Part: 61002653

Price: £28.27
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Chaffoteaux 998643 Auto Air Vent

Part: 998643

Price: £12.00
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Chaffoteaux 995865 Auto Air Vent

Part: 995865

Price: £11.33
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Chaffoteaux 65104703 Auto Air Vent

Part: 65104703

Price: £25.93
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Chaffoteaux 60000994 Air Separator

Part: 60000994

Price: £20.05
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Chaffoteaux 571639 Auto Air Vent

Part: 571639

Price: £13.12
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Ferroli 39820950 Air Vent Seperator

Part: 39820950

Price: £52.15
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Ferroli 39801160 Optima Auto Air Vent

Part: 39801160

Price: £14.00
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Ferroli 39818220 Optimax He Domicompact Auto Air Vent

Part: 39818220

Price: £44.00
4254
Vokera 4254 Excell Flowmatic Auto Air Vent

Part: 4254

Price: £8.95
100618
Vokera 100618 Linea Max Auto Air Vent

Part: 100618

Price: £16.06
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Vokera 10029306 Linea He Unica Auto Air Vent

Part: 10029306

Price: £14.15
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Vokera 10025485 Linea, Compact Auto Air Vent

Part: 10025485

Price: £8.95
0439
Vokera 0439 Linea Mynute Auto Air Vent

Part: 0439

Price: £9.25
20019888
Vokera Air Separator 20019888

Part: 20019888

Price: £18.28
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Vokera 20019768 Auto Air Vent

Part: 20019768

Price: £7.95
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