Air in System Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[Deck1ng]

[b]Hi, I have just changed the radiator after decorating our bedroom. But seem unable to get the air out of the system. I have bleed all radiators a number of times and there is a quite regular gush of air/bubbles running to the radiators, any thoughts please?[/b]

[htg engineer]

are all radiators heating up ? if so just vent radiators every couple of days, air will rise to the top of the radiators. Also try venting the central heating pump.

[wishiwascorgi]

another thought is bleed your radiators one at a time from the ground floor and lock each one off by the valves on both sides ( make sure boiler is off)then open both sides of the radiator that is cold and turn your boiler on. Keep bleeding until all air has been pumped out.