# The Boiler (Efficiency) Regulations 1993, Paragraph 4


A cooker or other appliance which is designed mainly to heat the premises in which it is installed, and, as a subsidiary function, to supply hot water for central heating and sanitary hot water.

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Source: https://www.legislation.gov.uk/uksi/1993/3083/schedule/3/paragraph/4 (the official version)
Page: https://openlegislation.uk/boiler-efficiency-regulations-1993/schedule-3/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.