My elderly parents have just paid out nearly £200 after being told during their usual yearly British GasHomecare boiler service that due to new EEC ruling the ventilation of their gas central heating boiler is no longer sufficient. They had a huge vent put on the outside of their small 1930s end terrace which seems a bit excessive. A quick search online shows up nothing about this new ruling. Has anyone heard of this? I think they have been conned. I spoke to British Gas customer service and all they could tell me is that the quote my parents were given had "vent" written on it and they themselves are not aware of any new ruling. Any advice from experts gratefully received.