Lpg gas stations are becoming increasingly more available in the UK. I wish I could plug into the mains as that would cost me 0.0023pence per litre, gas station prices currently cost around 40 pence per litre as opposed to petrol at 90 pence and diesel at 95 pence. failing all this i can always plug in a BBQ bottle haha.
Seriously though. What A/C are you speaking about here?
regards.