What are the cons

The two big disadvantages of LPG are safety and cost. Keeping a gas pressurized at 274 times less space than it would normally occupy requires extremely sturdy metal tanks and its hardly surprising that LPG containers do occasionally explode. Explosions of gas canisters on building sites are far from uncommon, for example. In theory, since LPG is highly flammable, transporting it by road and storing it in large tanks in populated areas should be much more dangerous than piping natural gas underground. Having said that, LPG suppliers go to great lengths to ensure safety and LPG is generally recognized as being just as safe, allround, as an ordinary natural gas supply. Cost is another big drawback: LPG is typically several times more expensive than ordinary natural gas. But if you cant get piped gas, and LPG is your only option, maybe thats not really such an issue.