Draught excluders are a "simple and low-cost" way to stop chilly air seeping into your home and keep warm air in.
38 per cent of people who keep tabs on spending use one, saving an average of £240 a year.
British Gas, EDF, EON, Ovo and Octopus customers are being urged to make one phone call and cut £176 off their energy bill.
Households are at risk of overpaying on their energy bills if their smart meters are faulty or wired incorrectly. Customers ...