Calor and Macgas

Surfer

Which is the cheaper by litre?  We are thinking fo replacing our Calor Lite bottles with the 10kg MacGas cyclinders due to the price Calor charge for a refill, but the issue of availibility is a concern.

We did consider a system like Gaslow or Safefill, but only use about 5 - 6 bottles a year so break even point is a few years.  However we are considering using more non EHU sites in the future.