jondeau

The point is that you appear to have no knowledge of gas regulations other than hearsay and rumour and yet you blithely tell someone that their gas appliance is no good. All gas appliances constructed for use in the UK are subject to rigourous control and testing and are built to internationally agreed standards. I can see no reason why a UK cooker would not be acceptable in France. No I am not a Corgi registered fitter, but I am an apprentice trained gas fitter (retd.) with over forty years experience in this field Perhaps you would be so good as to point out which specific regulation the cooker would contravene.  

You're obviously not a gas fitter then.

I would be very surprised if a modern UK appliance did not conform to all the norms required by French regulations. In fact, being that regulation is far more stringent in the UK it should exceed them.   And if we ever get around to gas applances that are actually installed in many French properties......there are horror stories galore......