AlanD wrote:
FWIW my gas consumption is 45 percent DJF, 25 percent MAM, 8 percent
JJA, and 22 percent SON, so it might be worth digging out those old
bills and applying some percentages to them, to give you some idea of
how the £120 works out from your POV.

WTF do 'DJF', 'MAM', 'JJA' and 'SON' mean??

I could just tell you but since this is DIY I suggest you look at the
first hit on
http://www.google.co.uk/search?hl=en...=&oq=&gs_rfai=

HTH

--
Robin
PM may be sent to rbw0{at}hotmail{dot}com