From the Age Concern website
Each year, hundreds of house fires are accidentally caused by a faulty electric blanket.
To help reduce this number, we have joined up with E.ON, the company that runs Powergen, to offer free safety tests for electric blankets during October and November 2006.
Each household can bring up to 3 blankets to be tested. If our authorised assessors consider your blanket to be dangerous, you will instantly receive a free replacement blanket*.
Although electric blankets are made to strict safety standards, any blanket which is used or stored incorrectly or is more than ten years old may be a fire risk.
There are electric blanket testing sessions at 36 locations in England, Scotland and Wales this October and November.