A few last comments. Indeed do not buy a second meths burner. You will not need it, and it will be useless. You will burn your fingers trying to replace it. And really do not refill until it has cooled down. Accidents have happened. It will cool down very quickly, however. As for surface treatment, the HA is pretty non stick, and should solve your (I believe imagined) issue with bare alluminium. The hard anodized is much stronger than the teflon non stick. You can scrape it and it will not budge. You could buy the version with the non stick frying pan and the rest in hard anodized (look at the Trangia website for the many versions).
As for multifuel burners, most that I see on UK sites are still the older Optimus Nova burner rather than the new Primus one that also burns cannisters. However, enough people have succeeded in fitting other burners such as from MSR in a Trangia 25. You may need the special Trangia cup to fit them into (will look for the part number if you are interested). Google to find other people's experiences with this.
As for the gas burner, I have asked both Trangia and Primus (who make it) and they have no plans to introduce a dual valve version. So if you go to France, take an Edelrid adapter.
Bon appetit,
Willem
As for multifuel burners, most that I see on UK sites are still the older Optimus Nova burner rather than the new Primus one that also burns cannisters. However, enough people have succeeded in fitting other burners such as from MSR in a Trangia 25. You may need the special Trangia cup to fit them into (will look for the part number if you are interested). Google to find other people's experiences with this.
As for the gas burner, I have asked both Trangia and Primus (who make it) and they have no plans to introduce a dual valve version. So if you go to France, take an Edelrid adapter.
Bon appetit,
Willem