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Millions of pounds wasted in hot water, says study

4 July 2013 Last updated at 07:43 BST

Hundreds of millions of pounds are being wasted every year in the UK by people using too much hot water, according to a major study by the Energy Saving Trust.

The research found the average household could save £22 a year on their energy bills by making small changes.

Andrew Verity reports.

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