We were wary of the LPG when we bought our house earlier this year. We hoped to have a ground source heat pump instead but was told our garden wasn't big enough so would have to be huge boreholes - not great next to a house with no foundations. Also no guarantee it would produce enough heat for the whole house.
We ended up having a new LPG gas boiler put in as our tank doesn't need servicing for another 7yrs apparently. The tanks have to be checked every 10yrs but new ones need to either be buried or have a one metre gap all around it. Ours is up against a wall so will need to be moved/buried if we stick with LPG long term.
We've had no issues ordering gas but it is expensive. About £500 to 3/4 fill the tank. These days you can get a device to tell you it's running low, but we don't have one. Our supplier gives a lower rate if you have a contract and I think there's a rental charge for the tank as they are responsible for it.
We were advised by most heating engineers to change to oil. I prefer LPG after listening to the arguments for/against oil (mainly having to have a huge outdoor boiler stuck on my wall by the back door
).
We had the gas fires cut off as can only imagine the LPG they would go through, and we had the range swapped for induction. The wood burners were already condemned so we haven't bothered having fires in.
We haven't had our first winter here yet so no idea what the cost will be but as we have a winter baby due, I'm guessing it will cost us a fortune to keep the house warm.
We had no issues getting an LPG qualified gas engineer, but there are far less of them around.
For reference, we were offered mains gas at a cost of £50k that we would have to pay the entire cost of. Just before we moved here they were apparently offering it for £7k per house but everyone turned it down.