Your heating bills could be costing £100s more per year than they need to be, says the UK energy regulator. Ofgem has released a series of video guides aimed at raising awareness of customers' rights. They include dealing with doorstep sales people, and debt and disconnection. "Our latest research shows that consumers who are not active in the market are paying on average around £170 a year more than they have to," said Sarah Harrison, of Ofgem.