Commenting on the report, Tony Herbert, from the Citizens Advice Bureau (CAB), said: "With the recession continuing and fuel prices remaining at historically high levels, it is essential that people who are struggling with fuel bills take advantage of the help that is available before the cold weather kicks in."
Last month the CAB also recommended shopping around for the best energy prices to help avoid fuel debt.
The home heat helpline is a not-for-profit service which offers advice to those who are struggling to pay their fuel bills. Figures from the UK government state that over four million people were living in fuel poverty in 2008. This is compared to 1.2 million in 2004.
Locations in the UK most likely to be missing out are Liverpool, Leicester, Blaenau Gwen, Merthyr Tydfil, Neath/Port Talbot and Torbay.
Click here to run an energy price comparison, and see if you could be paying less for your gas and electricity.