# The Ecodesign for Energy-Related Products and Energy Information Regulations 2021, Paragraph 16: Weighted water consumption requirement


(1) Household washing machines and household washer-dryers must meet the following requirements.
(2) For—
(a) household washing machines; and
(b) the washing cycle of household washer-dryers,
the weighted water consumption (WW, in litres/cycle) for the eco 40-60 programme must be—
WW ≤ 2.25 × c + 30.
(3) For the purposes of sub-paragraph (2), c is—
(a) the rated capacity of the household washing machine; or
(b) the rated washing capacity of the household washer-dryer;
for the eco 40-60 programme.
(4) For household washer-dryers, the weighted water consumption (WWD, in litres/cycle) for the wash and dry cycle must be:
WWD ≤ 10 × d + 30.
(5) For the purposes of sub-paragraph (4), d is the rated capacity of the household washer-dryer for the wash and dry cycle.
(6) WW and WWD must be calculated in accordance with Schedule 10.

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Source: https://www.legislation.gov.uk/ukdsi/2021/9780348222920/schedule/9/paragraph/16 (the official version)
Page: https://openlegislation.uk/draft-ecodesign-for-energy-related-products-and-energy-information-regulations-2021/schedule-9/paragraph-16
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.