Been having a look on the Corgi site, the customer section.
Found this
Do Not DIY With Gas
Although there are many DIY tasks you can safely perform at home, unless you are a trained professional, working with gas appliances is not one of them.
That is a pretty clear statement.
There is also a podcast to listen too, it advises on planning any sort of diy and working safely, after about 1 min 30 secs they following is quoted
"unless you are corgi registered you can not do any gas work on the home"
It does not imply have a go if you want, if you think your competant, you may but we advise you not too.
Quite clear "you can not"
Found this
Do Not DIY With Gas
Although there are many DIY tasks you can safely perform at home, unless you are a trained professional, working with gas appliances is not one of them.
That is a pretty clear statement.
There is also a podcast to listen too, it advises on planning any sort of diy and working safely, after about 1 min 30 secs they following is quoted
"unless you are corgi registered you can not do any gas work on the home"
It does not imply have a go if you want, if you think your competant, you may but we advise you not too.
Quite clear "you can not"