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A leaf, or the letters ECO: longer, cooler, and the tested setting.
Also known as: Leaf on an appliance programme dial, Energy saving programme
A leaf glyph on a washing machine or dishwasher. It saves energy by running longer at a lower temperature rather than by doing less, and it is the programme the appliance's declared energy figures are measured on.
A leaf outline, or the letters ECO, marking the energy-saving programme on a washing machine or dishwasher.
What a given programme actually does is in the appliance's own instructions. The symbol names the function; the manufacturer decides how it behaves.
Contexts: Electrical equipment
Saves energy by running longer at a lower temperature. Most of a wash cycle's energy goes into heating water, so a long cool wash uses less than a short hot one despite taking two or three hours.
The longer time is how it saves energy, not a cost of doing so.
The programme on which the declared energy and water figures are measured, which is why an appliance's label describes performance a user only achieves by selecting it.
A single leaf outline with a curved central vein, or the three letters ECO, printed beside a programme position.