An electric tea kettle that boils exactly as much water as you need — not two or three times as much.
It would be nice if more manufacturers paid attention to the details like this — it takes a lot of energy to boil water.
This is how it works: The internal reservoir holds a full capacity of water ready for use, while the measuring button allows any quantity – from a single cupful to full capacity – to be released into the separate chamber for boiling.

The result? Exactly the right amount of water every time you boil –and no more waste.

If you avoid boiling 6 cups of water a day, this adds up to 1.2 KWH per day, or 430 KWH per year and 900 lbs of CO2 if your electricity comes from a coal powered plant.

Link to manufacturer, here you can also find you local dealer: Link