The Eco Kettle for

It is estimated that, on average, we boil twice the volume of water needed every time we use our kettles. With a 3kW kettle that's the same as wasting the energy of around 50 light bulbs. And standard kettles are often highly inefficient - a stove-top kettle, for instance, requires energy to heat the handle and shell in addition to the water. But British designer Brian Hartley's Eco Kettle solves these problems at a stroke. You fill it up, and then use the measuring button to release the exact amount of water you require - from a single cup to a full jug - into a separate chamber for boiling. It is also insulated to keep the water hot. The result is an energy saving of up to 30 per cent.