The BGCA guidance below is a bit weighty but gives you all you need to know about portable oxy fuel kit. It’s my go to resourceIt was more a train of thought (and Google's search rankings). If you ring the fire people with a problem where acetylene is involved, that is the standard procedure they will follow. If you know what they will do when they turn up at your house, you can apply it to your own situation and imagine the displeasure you will incur from your neighbours (and why your insurer might be unhappy).
The Kent one, although aimed at industrial users, seemed to be good advice: understand the risks and consequences, do a risk assessment and carry out mitigation measures.
If there is any guidance, more suited for hobby or domestic use, it would be good to know of it as if you can demonstrate you comply with best advice, it might be a small lever with an insurer. Thanks.