Have to mention I saw something really shocking today. It was an lpg gas heater in a suppliers heating the room. Do you know how dangerous that is? I ran out screaming - I mean that cylinder was only about two inches away from the flame - we could have died! Lots of old people might explode in their homes.
Some things H+S wise are ridiculous, however, some H+S measures are not.
Your choice to the risks you want to take, insured or uninsured.
We have an LPG system fitted in one of our vans, but it's not in use, as nobody would insure it.
Not worth the risk, in my opinion, as all it takes is a claim for an accident or whatever, and the assesor can cancel your policy there and then, and you've lost everything.