Interesting to see Calor cheaper out your way. Its always the other way round here. I prefer Flowgas anyway, there staff always seem to be more helpful. Calor always make you feel as though they are doing you a favour by selling you their gas, and can never tell you when it will be delivered, even though they have regular 'routes'. Its always 'we are short staffed this week, we'll get it to you as soon as we can'!.
Plus , here anyway, Flowgas do not charge you a 'hire fee' for the bottles. Calor do, and of course you never get that back.
What it means for you
Check out last week's energy-themed Q&A with MSE's experts
How to grab £10-£25 tix for Cabaret, Matilda etc