Smartphone showing energy-controlling app
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Can smartphones save money on energy?

A number of systems allowing customers to control their central heating via their smartphones are now on sale in the UK, promising big savings.

A number of systems allowing customers to control their central heating via their smartphones are now on sale in the UK, promising big savings.

All the systems work by allowing more precise control over when heating is switched on - and in some cases, in which rooms.

But how real are the savings, and who could benefit?

Brian Milligan reports.