Are you being fooled by an energy saving myth? If you thought computer screensavers save energy, you’re not alone – 30% of the UK public think the same.

That’s according to the Energy Saving Trust which has released a list of 10 common myths that mean people waste money on energy rather than save it.

Half (50%) of all UK householders think it’s cheaper to leave their home heating on all day than turning the heating on or off and up or down when required.

A similar number (45%) thought switched-off electrical appliances don’t use electricity when they’re plugged in at the mains.

Other common misconceptions are that cavity wall insulation causes damp and putting plastic tape and a layer of cling-film around draughty windows is better at keeping heat in the home than draught excluders or double glazing.

The survey of 2,067 adults in the UK aged 16-75 was carried out online by Ipsos MORI earlier this month.

Other findings show a touch more awareness of energy: two-thirds (66%) know more heat is lost through the roof than the walls of the home.

While 69% know solar panels work during daylight hours regardless of whether the sun is shining or not, with only 10% disagreeing.

Phillip Sellwood, the Energy Saving Trust’s Chief Executive said: “We know it’s important for the UK public to stay warm and cosy in their homes. But for the majority the most cost-effective way to do this is to turn the heating on and off or up and down when required rather than leaving it on all day at a lower temperature. This ensures that heat is not wasted and that your home will be at a comfortable temperature.”