Two in five British households are missing out on saving around £500-a-year on their energy bills - by failing to take simple actions like turning their hot water temperature down.
Reducing heating by a single degree, and switching to more efficient cooking appliances, can save consumers £229 and £202 respectively - and lowering the hot water to 50 degrees centigrade can reduce costs by £115.
But a study of 5,000 adults found 40% have never taken these measures.