Eli5: Why is the eco program on my washing machine longer than the regular program?

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My washing machine has an ‘eco’ setting, which makes the machine program take about an hour longer than without the setting. Why is this the case, and how much difference does it make? I would think that longer operation would amount to both more water and power usage but the machine itself claims otherwise.
Also, does it matter more or less for higher machine temperatures?

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4 Answers

Anonymous 0 Comments

Eco settings try to spend less energy in heating up water and forcefully propelling it, so, they make up for it by longer cycles.

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