It is actual in Mid-France (2500 ft altitude) and is "called" propane
but I assume it is a mix of sorts. The stove/oven works fine so I guess
I have to assume that it is not a vapourisation problem. Have not
stripped down the ignition system (it is new so I assumed it was fine)
but will ask for a raplcement ignition unit and see if that helps. I
can hear the gas going in and the sparks going - just does not catch. I
might try dis-connecting the fuel lines and drying them all out
properly.

thanks for helping.